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• No coverage for runtime with Devel::Cover and ModPerl::Registry

  - by codeholic

  When I'm running Devel::Cover with ModPerl::Registry, I get no coverage info except for BEGIN blocks. When I'm running the same script with Devel::Cover from command line or as a CGI, everything works alright (obviously). How can I make Devel::Cover "see" my code being executed in the runtime? Here's Devel::Cover related stuff in my httpd.conf: MaxClients 1 PerlSetEnv DEVEL_COVER_OPTIONS -db,/tmp/cover_db,silent,1 PerlRequire /var/www/project/startup.pl Here's startup.pl: #!/usr/bin/perl use strict; use warnings; use Apache2::Directive (); use File::Basename (); use File::Find (); BEGIN { # Devel::Cover database must be writable by worker processes my $conftree = Apache2::Directive::conftree->as_hash; my $name = $conftree->{User} or die "couldn't find user in Apache config"; print "user=$name\n"; my $uid = getpwnam($name); defined $uid or die "couldn't determine uid by name"; no warnings 'redefine'; local $> = $uid; require Devel::Cover; my $old_report = \&Devel::Cover::report; *Devel::Cover::report = sub { local $> = $uid; $old_report->(@_) }; Devel::Cover->import; } 1; (As you may see, I made a monkey patch for Devel::Cover since startup.pl is being run by root, but worker processes run under a different user, and otherwise they couldn't read directories created by startup.pl. If you know a better solution, make a note, please.)

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• How to solve "403 Forbidden" on CentOS6 with SELinux Disabled?

  - by André

  I have a machine on Linode that is driving me crazy. Linode does not have SELinux on CentOS6... I'm trying to configure to put my website in "/home/websites/public_html/mysite.com/public" As I don´t have SELinux enable, how can I avoid the "403 Forbidden" that I get when trying to access the webpage? Sorry for my english. Best Regards, Update1, ERROR_LOG [Mon Oct 17 14:04:16 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:08:07 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:10:25 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:10:41 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:32:35 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 14:34:45 2011] [error] [client 58.218.199.227] (13)Permission denied: access to /proxy-1.php denied [Mon Oct 17 15:32:25 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:37:26 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:37:43 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:38:32 2011] [error] [client 127.0.0.1] (13)Permission denied: access to / denied [Mon Oct 17 15:42:56 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:43:12 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:45:34 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable [Mon Oct 17 15:51:25 2011] [crit] [client 127.0.0.1] (13)Permission denied: /home/websites/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable Upadate2, /home/websites directory drwx------ 3 websites websites 4096 Oct 17 14:52 . drwxr-xr-x. 3 root root 4096 Oct 17 13:42 .. -rw------- 1 websites websites 372 Oct 17 14:52 .bash_history -rw-r--r-- 1 websites websites 18 May 30 11:46 .bash_logout -rw-r--r-- 1 websites websites 176 May 30 11:46 .bash_profile -rw-r--r-- 1 websites websites 124 May 30 11:46 .bashrc drwxrwxr-x 3 websites apache 4096 Oct 17 13:45 public_html Update3, httpd.conf ### Section 1: Global Environment ServerTokens OS ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 KeepAliveTimeout 15 <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 300 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> #Listen 12.34.56.78:80 Listen 80 LoadModule auth_basic_module modules/mod_auth_basic.so LoadModule auth_digest_module modules/mod_auth_digest.so LoadModule authn_file_module modules/mod_authn_file.so LoadModule authn_alias_module modules/mod_authn_alias.so LoadModule authn_anon_module modules/mod_authn_anon.so LoadModule authn_dbm_module modules/mod_authn_dbm.so LoadModule authn_default_module modules/mod_authn_default.so LoadModule authz_host_module modules/mod_authz_host.so LoadModule authz_user_module modules/mod_authz_user.so LoadModule authz_owner_module modules/mod_authz_owner.so LoadModule authz_groupfile_module modules/mod_authz_groupfile.so LoadModule authz_dbm_module modules/mod_authz_dbm.so LoadModule authz_default_module modules/mod_authz_default.so LoadModule ldap_module modules/mod_ldap.so LoadModule authnz_ldap_module modules/mod_authnz_ldap.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule logio_module modules/mod_logio.so LoadModule env_module modules/mod_env.so LoadModule ext_filter_module modules/mod_ext_filter.so LoadModule mime_magic_module modules/mod_mime_magic.so LoadModule expires_module modules/mod_expires.so LoadModule deflate_module modules/mod_deflate.so LoadModule headers_module modules/mod_headers.so LoadModule usertrack_module modules/mod_usertrack.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule dav_module modules/mod_dav.so LoadModule status_module modules/mod_status.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule info_module modules/mod_info.so LoadModule dav_fs_module modules/mod_dav_fs.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule actions_module modules/mod_actions.so LoadModule speling_module modules/mod_speling.so LoadModule userdir_module modules/mod_userdir.so LoadModule alias_module modules/mod_alias.so LoadModule substitute_module modules/mod_substitute.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_balancer_module modules/mod_proxy_balancer.so LoadModule proxy_ftp_module modules/mod_proxy_ftp.so LoadModule proxy_http_module modules/mod_proxy_http.so LoadModule proxy_ajp_module modules/mod_proxy_ajp.so LoadModule proxy_connect_module modules/mod_proxy_connect.so LoadModule cache_module modules/mod_cache.so LoadModule suexec_module modules/mod_suexec.so LoadModule disk_cache_module modules/mod_disk_cache.so LoadModule cgi_module modules/mod_cgi.so LoadModule version_module modules/mod_version.so Include conf.d/*.conf #ExtendedStatus On User apache Group apache ServerAdmin root@localhost #ServerName www.example.com:80 UseCanonicalName Off DocumentRoot "/var/www/html" # # Each directory to which Apache has access can be configured with respect # to which services and features are allowed and/or disabled in that # directory (and its subdirectories). # # First, we configure the "default" to be a very restrictive set of # features. # <Directory /> Options FollowSymLinks AllowOverride None </Directory> # # Note that from this point forward you must specifically allow # particular features to be enabled - so if something's not working as # you might expect, make sure that you have specifically enabled it # below. # # # This should be changed to whatever you set DocumentRoot to. # <Directory "/home/websites/public_html"> # # Possible values for the Options directive are "None", "All", # or any combination of: # Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews # # Note that "MultiViews" must be named *explicitly* --- "Options All" # doesn't give it to you. # # The Options directive is both complicated and important. Please see # http://httpd.apache.org/docs/2.2/mod/core.html#options # for more information. # Options Indexes FollowSymLinks # # AllowOverride controls what directives may be placed in .htaccess files. # It can be "All", "None", or any combination of the keywords: # Options FileInfo AuthConfig Limit # AllowOverride None # # Controls who can get stuff from this server. # Order allow,deny Allow from all </Directory> # # UserDir: The name of the directory that is appended onto a user's home # directory if a ~user request is received. # # The path to the end user account 'public_html' directory must be # accessible to the webserver userid. This usually means that ~userid # must have permissions of 711, ~userid/public_html must have permissions # of 755, and documents contained therein must be world-readable. # Otherwise, the client will only receive a "403 Forbidden" message. # # See also: http://httpd.apache.org/docs/misc/FAQ.html#forbidden # <IfModule mod_userdir.c> # # UserDir is disabled by default since it can confirm the presence # of a username on the system (depending on home directory # permissions). # UserDir disabled # # To enable requests to /~user/ to serve the user's public_html # directory, remove the "UserDir disabled" line above, and uncomment # the following line instead: # #UserDir public_html </IfModule> # # Control access to UserDir directories. The following is an example # for a site where these directories are restricted to read-only. # #<Directory /home/*/public_html> # AllowOverride FileInfo AuthConfig Limit # Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec # <Limit GET POST OPTIONS> # Order allow,deny # Allow from all # </Limit> # <LimitExcept GET POST OPTIONS> # Order deny,allow # Deny from all # </LimitExcept> #</Directory> # # DirectoryIndex: sets the file that Apache will serve if a directory # is requested. # # The index.html.var file (a type-map) is used to deliver content- # negotiated documents. The MultiViews Option can be used for the # same purpose, but it is much slower. # DirectoryIndex index.html index.html.var # # AccessFileName: The name of the file to look for in each directory # for additional configuration directives. See also the AllowOverride # directive. # AccessFileName .htaccess # # The following lines prevent .htaccess and .htpasswd files from being # viewed by Web clients. # <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy All </Files> # # TypesConfig describes where the mime.types file (or equivalent) is # to be found. # TypesConfig /etc/mime.types # # DefaultType is the default MIME type the server will use for a document # if it cannot otherwise determine one, such as from filename extensions. # If your server contains mostly text or HTML documents, "text/plain" is # a good value. If most of your content is binary, such as applications # or images, you may want to use "application/octet-stream" instead to # keep browsers from trying to display binary files as though they are # text. # DefaultType text/plain # # The mod_mime_magic module allows the server to use various hints from the # contents of the file itself to determine its type. The MIMEMagicFile # directive tells the module where the hint definitions are located. # <IfModule mod_mime_magic.c> # MIMEMagicFile /usr/share/magic.mime MIMEMagicFile conf/magic </IfModule> # # HostnameLookups: Log the names of clients or just their IP addresses # e.g., www.apache.org (on) or 204.62.129.132 (off). # The default is off because it'd be overall better for the net if people # had to knowingly turn this feature on, since enabling it means that # each client request will result in AT LEAST one lookup request to the # nameserver. # HostnameLookups Off #EnableMMAP off #EnableSendfile off # # ErrorLog: The location of the error log file. # If you do not specify an ErrorLog directive within a <VirtualHost> # container, error messages relating to that virtual host will be # logged here. If you *do* define an error logfile for a <VirtualHost> # container, that host's errors will be logged there and not here. # ErrorLog logs/error_log LogLevel warn # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %b" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent # "combinedio" includes actual counts of actual bytes received (%I) and sent (%O); this # requires the mod_logio module to be loaded. #LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio # # The location and format of the access logfile (Common Logfile Format). # If you do not define any access logfiles within a <VirtualHost> # container, they will be logged here. Contrariwise, if you *do* # define per-<VirtualHost> access logfiles, transactions will be # logged therein and *not* in this file. # #CustomLog logs/access_log common # # If you would like to have separate agent and referer logfiles, uncomment # the following directives. # #CustomLog logs/referer_log referer #CustomLog logs/agent_log agent # # For a single logfile with access, agent, and referer information # (Combined Logfile Format), use the following directive: # CustomLog logs/access_log combined ServerSignature On Alias /icons/ "/var/www/icons/" <Directory "/var/www/icons"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> # # WebDAV module configuration section. # <IfModule mod_dav_fs.c> # Location of the WebDAV lock database. DAVLockDB /var/lib/dav/lockdb </IfModule> # # ScriptAlias: This controls which directories contain server scripts. # ScriptAliases are essentially the same as Aliases, except that # documents in the realname directory are treated as applications and # run by the server when requested rather than as documents sent to the client. # The same rules about trailing "/" apply to ScriptAlias directives as to # Alias. # ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" # # "/var/www/cgi-bin" should be changed to whatever your ScriptAliased # CGI directory exists, if you have that configured. # <Directory "/var/www/cgi-bin"> AllowOverride None Options None Order allow,deny Allow from all </Directory> IndexOptions FancyIndexing VersionSort NameWidth=* HTMLTable Charset=UTF-8 AddIconByEncoding (CMP,/icons/compressed.gif) x-compress x-gzip AddIconByType (TXT,/icons/text.gif) text/* AddIconByType (IMG,/icons/image2.gif) image/* AddIconByType (SND,/icons/sound2.gif) audio/* AddIconByType (VID,/icons/movie.gif) video/* AddIcon /icons/binary.gif .bin .exe AddIcon /icons/binhex.gif .hqx AddIcon /icons/tar.gif .tar AddIcon /icons/world2.gif .wrl .wrl.gz .vrml .vrm .iv AddIcon /icons/compressed.gif .Z .z .tgz .gz .zip AddIcon /icons/a.gif .ps .ai .eps AddIcon /icons/layout.gif .html .shtml .htm .pdf AddIcon /icons/text.gif .txt AddIcon /icons/c.gif .c AddIcon /icons/p.gif .pl .py AddIcon /icons/f.gif .for AddIcon /icons/dvi.gif .dvi AddIcon /icons/uuencoded.gif .uu AddIcon /icons/script.gif .conf .sh .shar .csh .ksh .tcl AddIcon /icons/tex.gif .tex AddIcon /icons/bomb.gif core AddIcon /icons/back.gif .. AddIcon /icons/hand.right.gif README AddIcon /icons/folder.gif ^^DIRECTORY^^ AddIcon /icons/blank.gif ^^BLANKICON^^ # # DefaultIcon is which icon to show for files which do not have an icon # explicitly set. # DefaultIcon /icons/unknown.gif # # AddDescription allows you to place a short description after a file in # server-generated indexes. These are only displayed for FancyIndexed # directories. # Format: AddDescription "description" filename # #AddDescription "GZIP compressed document" .gz #AddDescription "tar archive" .tar #AddDescription "GZIP compressed tar archive" .tgz # # ReadmeName is the name of the README file the server will look for by # default, and append to directory listings. # # HeaderName is the name of a file which should be prepended to # directory indexes. ReadmeName README.html HeaderName HEADER.html # # IndexIgnore is a set of filenames which directory indexing should ignore # and not include in the listing. Shell-style wildcarding is permitted. # IndexIgnore .??* *~ *# HEADER* README* RCS CVS *,v *,t # # DefaultLanguage and AddLanguage allows you to specify the language of # a document. You can then use content negotiation to give a browser a # file in a language the user can understand. # # Specify a default language. This means that all data # going out without a specific language tag (see below) will # be marked with this one. You probably do NOT want to set # this unless you are sure it is correct for all cases. # # * It is generally better to not mark a page as # * being a certain language than marking it with the wrong # * language! # # DefaultLanguage nl # # Note 1: The suffix does not have to be the same as the language # keyword --- those with documents in Polish (whose net-standard # language code is pl) may wish to use "AddLanguage pl .po" to # avoid the ambiguity with the common suffix for perl scripts. # # Note 2: The example entries below illustrate that in some cases # the two character 'Language' abbreviation is not identical to # the two character 'Country' code for its country, # E.g. 'Danmark/dk' versus 'Danish/da'. # # Note 3: In the case of 'ltz' we violate the RFC by using a three char # specifier. There is 'work in progress' to fix this and get # the reference data for rfc1766 cleaned up. # # Catalan (ca) - Croatian (hr) - Czech (cs) - Danish (da) - Dutch (nl) # English (en) - Esperanto (eo) - Estonian (et) - French (fr) - German (de) # Greek-Modern (el) - Hebrew (he) - Italian (it) - Japanese (ja) # Korean (ko) - Luxembourgeois* (ltz) - Norwegian Nynorsk (nn) # Norwegian (no) - Polish (pl) - Portugese (pt) # Brazilian Portuguese (pt-BR) - Russian (ru) - Swedish (sv) # Simplified Chinese (zh-CN) - Spanish (es) - Traditional Chinese (zh-TW) # AddLanguage ca .ca AddLanguage cs .cz .cs AddLanguage da .dk AddLanguage de .de AddLanguage el .el AddLanguage en .en AddLanguage eo .eo AddLanguage es .es AddLanguage et .et AddLanguage fr .fr AddLanguage he .he AddLanguage hr .hr AddLanguage it .it AddLanguage ja .ja AddLanguage ko .ko AddLanguage ltz .ltz AddLanguage nl .nl AddLanguage nn .nn AddLanguage no .no AddLanguage pl .po AddLanguage pt .pt AddLanguage pt-BR .pt-br AddLanguage ru .ru AddLanguage sv .sv AddLanguage zh-CN .zh-cn AddLanguage zh-TW .zh-tw # # LanguagePriority allows you to give precedence to some languages # in case of a tie during content negotiation. # # Just list the languages in decreasing order of preference. We have # more or less alphabetized them here. You probably want to change this. # LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv zh-CN zh-TW # # ForceLanguagePriority allows you to serve a result page rather than # MULTIPLE CHOICES (Prefer) [in case of a tie] or NOT ACCEPTABLE (Fallback) # [in case no accepted languages matched the available variants] # ForceLanguagePriority Prefer Fallback # # Specify a default charset for all content served; this enables # interpretation of all content as UTF-8 by default. To use the # default browser choice (ISO-8859-1), or to allow the META tags # in HTML content to override this choice, comment out this # directive: # AddDefaultCharset UTF-8 # # AddType allows you to add to or override the MIME configuration # file mime.types for specific file types. # #AddType application/x-tar .tgz # # AddEncoding allows you to have certain browsers uncompress # information on the fly. Note: Not all browsers support this. # Despite the name similarity, the following Add* directives have nothing # to do with the FancyIndexing customization directives above. # #AddEncoding x-compress .Z #AddEncoding x-gzip .gz .tgz # If the AddEncoding directives above are commented-out, then you # probably should define those extensions to indicate media types: # AddType application/x-compress .Z AddType application/x-gzip .gz .tgz # # MIME-types for downloading Certificates and CRLs # AddType application/x-x509-ca-cert .crt AddType application/x-pkcs7-crl .crl # # AddHandler allows you to map certain file extensions to "handlers": # actions unrelated to filetype. These can be either built into the server # or added with the Action directive (see below) # # To use CGI scripts outside of ScriptAliased directories: # (You will also need to add "ExecCGI" to the "Options" directive.) # #AddHandler cgi-script .cgi # # For files that include their own HTTP headers: # #AddHandler send-as-is asis # # For type maps (negotiated resources): # (This is enabled by default to allow the Apache "It Worked" page # to be distributed in multiple languages.) # AddHandler type-map var # # Filters allow you to process content before it is sent to the client. # # To parse .shtml files for server-side includes (SSI): # (You will also need to add "Includes" to the "Options" directive.) # AddType text/html .shtml AddOutputFilter INCLUDES .shtml # # Action lets you define media types that will execute a script whenever # a matching file is called. This eliminates the need for repeated URL # pathnames for oft-used CGI file processors. # Format: Action media/type /cgi-script/location # Format: Action handler-name /cgi-script/location # # # Customizable error responses come in three flavors: # 1) plain text 2) local redirects 3) external redirects # # Some examples: #ErrorDocument 500 "The server made a boo boo." #ErrorDocument 404 /missing.html #ErrorDocument 404 "/cgi-bin/missing_handler.pl" #ErrorDocument 402 http://www.example.com/subscription_info.html # # # Putting this all together, we can internationalize error responses. # # We use Alias to redirect any /error/HTTP_<error>.html.var response to # our collection of by-error message multi-language collections. We use # includes to substitute the appropriate text. # # You can modify the messages' appearance without changing any of the # default HTTP_<error>.html.var files by adding the line: # # Alias /error/include/ "/your/include/path/" # # which allows you to create your own set of files by starting with the # /var/www/error/include/ files and # copying them to /your/include/path/, even on a per-VirtualHost basis. # Alias /error/ "/var/www/error/" <IfModule mod_negotiation.c> <IfModule mod_include.c> <Directory "/var/www/error"> AllowOverride None Options IncludesNoExec AddOutputFilter Includes html AddHandler type-map var Order allow,deny Allow from all LanguagePriority en es de fr ForceLanguagePriority Prefer Fallback </Directory> # ErrorDocument 400 /error/HTTP_BAD_REQUEST.html.var # ErrorDocument 401 /error/HTTP_UNAUTHORIZED.html.var # ErrorDocument 403 /error/HTTP_FORBIDDEN.html.var # ErrorDocument 404 /error/HTTP_NOT_FOUND.html.var # ErrorDocument 405 /error/HTTP_METHOD_NOT_ALLOWED.html.var # ErrorDocument 408 /error/HTTP_REQUEST_TIME_OUT.html.var # ErrorDocument 410 /error/HTTP_GONE.html.var # ErrorDocument 411 /error/HTTP_LENGTH_REQUIRED.html.var # ErrorDocument 412 /error/HTTP_PRECONDITION_FAILED.html.var # ErrorDocument 413 /error/HTTP_REQUEST_ENTITY_TOO_LARGE.html.var # ErrorDocument 414 /error/HTTP_REQUEST_URI_TOO_LARGE.html.var # ErrorDocument 415 /error/HTTP_UNSUPPORTED_MEDIA_TYPE.html.var # ErrorDocument 500 /error/HTTP_INTERNAL_SERVER_ERROR.html.var # ErrorDocument 501 /error/HTTP_NOT_IMPLEMENTED.html.var # ErrorDocument 502 /error/HTTP_BAD_GATEWAY.html.var # ErrorDocument 503 /error/HTTP_SERVICE_UNAVAILABLE.html.var # ErrorDocument 506 /error/HTTP_VARIANT_ALSO_VARIES.html.var </IfModule> </IfModule> # # The following directives modify normal HTTP response behavior to # handle known problems with browser implementations. # BrowserMatch "Mozilla/2" nokeepalive BrowserMatch "MSIE 4\.0b2;" nokeepalive downgrade-1.0 force-response-1.0 BrowserMatch "RealPlayer 4\.0" force-response-1.0 BrowserMatch "Java/1\.0" force-response-1.0 BrowserMatch "JDK/1\.0" force-response-1.0 # # The following directive disables redirects on non-GET requests for # a directory that does not include the trailing slash. This fixes a # problem with Microsoft WebFolders which does not appropriately handle # redirects for folders with DAV methods. # Same deal with Apple's DAV filesystem and Gnome VFS support for DAV. # BrowserMatch "Microsoft Data Access Internet Publishing Provider" redirect-carefully BrowserMatch "MS FrontPage" redirect-carefully BrowserMatch "^WebDrive" redirect-carefully BrowserMatch "^WebDAVFS/1.[0123]" redirect-carefully BrowserMatch "^gnome-vfs/1.0" redirect-carefully BrowserMatch "^XML Spy" redirect-carefully BrowserMatch "^Dreamweaver-WebDAV-SCM1" redirect-carefully # # Allow server status reports generated by mod_status, # with the URL of http://servername/server-status # Change the ".example.com" to match your domain to enable. # #<Location /server-status> # SetHandler server-status # Order deny,allow # Deny from all # Allow from .example.com #</Location> # # Allow remote server configuration reports, with the URL of # http://servername/server-info (requires that mod_info.c be loaded). # Change the ".example.com" to match your domain to enable. # #<Location /server-info> # SetHandler server-info # Order deny,allow # Deny from all # Allow from .example.com #</Location> # # Proxy Server directives. Uncomment the following lines to # enable the proxy server: # #<IfModule mod_proxy.c> #ProxyRequests On # #<Proxy *> # Order deny,allow # Deny from all # Allow from .example.com #</Proxy> # # Enable/disable the handling of HTTP/1.1 "Via:" headers. # ("Full" adds the server version; "Block" removes all outgoing Via: headers) # Set to one of: Off | On | Full | Block # #ProxyVia On # # To enable a cache of proxied content, uncomment the following lines. # See http://httpd.apache.org/docs/2.2/mod/mod_cache.html for more details. # #<IfModule mod_disk_cache.c> # CacheEnable disk / # CacheRoot "/var/cache/mod_proxy" #</IfModule> # #</IfModule> # End of proxy directives. ### Section 3: Virtual Hosts # # VirtualHost: If you want to maintain multiple domains/hostnames on your # machine you can setup VirtualHost containers for them. Most configurations # use only name-based virtual hosts so the server doesn't need to worry about # IP addresses. This is indicated by the asterisks in the directives below. # # Please see the documentation at # <URL:http://httpd.apache.org/docs/2.2/vhosts/> # for further details before you try to setup virtual hosts. # # You may use the command line option '-S' to verify your virtual host # configuration. # # Use name-based virtual hosting. # NameVirtualHost *:80 # # NOTE: NameVirtualHost cannot be used without a port specifier # (e.g. :80) if mod_ssl is being used, due to the nature of the # SSL protocol. # # # VirtualHost example: # Almost any Apache directive may go into a VirtualHost container. # The first VirtualHost section is used for requests without a known # server name. # #<VirtualHost *:80> # ServerAdmin [email protected] # DocumentRoot /www/docs/dummy-host.example.com # ServerName dummy-host.example.com # ErrorLog logs/dummy-host.example.com-error_log # CustomLog logs/dummy-host.example.com-access_log common #</VirtualHost> # domain: mysite.com # public: /home/websites/public_html/mysite.com/ <VirtualHost *:80> # Admin email, Server Name (domain name) and any aliases ServerAdmin [email protected] ServerName mysite.com ServerAlias www.mysite.com # Index file and Document Root (where the public files are located) DirectoryIndex index.html DocumentRoot /home/websites/public_html/mysite.com/public # Custom log file locations LogLevel warn ErrorLog /home/websites/public_html/mysite.com/log/error.log CustomLog /home/websites/public_html/mysite.com/log/access.log combined </VirtualHost>

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• Python Django sites on Apache+mod_wsgi with nginx proxy: highly fluctuating performance

  - by Halfgaar

  I have an Ubuntu 10.04 box running several dozen Python Django sites using mod_wsgi (embedded mode; the faster mode, if properly configured). Performance highly fluctuates. Sometimes fast, sometimes several seconds delay. The smokeping graphs are al over the place. Recently, I also added an nginx proxy for the static content, in the hopes it would cure the highly fluctuating performance. But, even though it reduced the number of requests Apache has to process significantly, it didn't help with the main problem. When clicking around on websites while running htop, it can be seen that sometimes requests are almost instant, whereas sometimes it causes Apache to consume 100% CPU for a few seconds. I really don't understand where this fluctuation comes from. I have configured the mpm_worker for Apache like this: StartServers 1 MinSpareThreads 50 MaxSpareThreads 50 ThreadLimit 64 ThreadsPerChild 50 MaxClients 50 ServerLimit 1 MaxRequestsPerChild 0 MaxMemFree 2048 1 server with 50 threads, max 50 clients. Munin and apache2ctl -t both show a consistent presence of workers; they are not destroyed and created all the time. Yet, it behaves as such. This tells me that once a sub interpreter is created, it should remain in memory, yet it seems sites have to reload all the time. I also have a nginx+gunicorn box, which performs quite well. I would really like to know why Apache is so random. This is a virtual host config: <VirtualHost *:81> ServerAdmin [email protected] ServerName example.com DocumentRoot /srv/http/site/bla Alias /static/ /srv/http/site/static Alias /media/ /srv/http/site/media WSGIScriptAlias / /srv/http/site/passenger_wsgi.py <Directory /> AllowOverride None </Directory> <Directory /srv/http/site> Options -Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> Ubuntu 10.04 Apache 2.2.14 mod_wsgi 2.8 nginx 0.7.65 Edit: I've put some code in the settings.py file of a site that writes the date to a tmp file whenever it's loaded. I can now see that the site is not randomly reloaded all the time, so Apache must be keeping it in memory. So, that's good, except it doesn't bring me closer to an answer... Edit: I just found an error that might also be related to this: File "/usr/lib/python2.6/subprocess.py", line 633, in __init__ errread, errwrite) File "/usr/lib/python2.6/subprocess.py", line 1049, in _execute_child self.pid = os.fork() OSError: [Errno 12] Cannot allocate memory The server has 600 of 2000 MB free, which should be plenty. Is there a limit that is set on Apache or WSGI somewhere?

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• RHEL 6.x on Rackspace Cloud and Dedicated hardware experiencing Redis Timeouts

  - by zhallett

  I just recently set up a mixture of RHEL 6.1 Rackspace cloud hosts and RHEL 6.2 dedicated hosts using Rackconnect. I am experiencing intermittent Redis timeouts from within our Rails 3.2.8 app with Redis 2.4.16 running on the RHEL 6.2 dedicated hosts. There is no network latency or packet loss. Also there are no errors on any interfaces on our cloud or dedicated servers or on the managed firewall from Rackspace. When Redis timesout, there is nothing logged within redis even though it is set up to do debug logging. The only error we receive is from Airbrake saying there was a Redis timeout. Network topology: RHEL 6.1 cloud hosts <--> Alert logic IDS <--> Cisco ASA 5510 <--> RHEL 6.2 dedicated hosts (web nodes) (two way NAT) (db hosts running redis) Ping from db host to web host: 64 bytes from 10.181.230.180: icmp_seq=998 ttl=64 time=0.520 ms 64 bytes from 10.181.230.180: icmp_seq=999 ttl=64 time=0.579 ms 64 bytes from 10.181.230.180: icmp_seq=1000 ttl=64 time=0.482 ms --- web1.xxxxxx.com ping statistics --- 1000 packets transmitted, 1000 received, 0% packet loss, time 999007ms rtt min/avg/max/mdev = 0.359/0.535/5.684/0.200 ms Ping from web host to db host: 64 bytes from 192.168.100.26: icmp_seq=998 ttl=64 time=0.544 ms 64 bytes from 192.168.100.26: icmp_seq=999 ttl=64 time=0.452 ms 64 bytes from 192.168.100.26: icmp_seq=1000 ttl=64 time=0.529 ms --- data1.xxxxxx.com ping statistics --- 1000 packets transmitted, 1000 received, 0% packet loss, time 999017ms rtt min/avg/max/mdev = 0.358/0.499/6.120/0.201 ms Redis config: daemonize yes pidfile /var/run/redis/6379/redis_6379.pid port 6379 timeout 0 loglevel debug logfile /var/lib/redis/log syslog-enabled yes syslog-ident redis-6379 syslog-facility local0 databases 16 save 900 1 save 300 10 save 60 10000 rdbcompression yes dbfilename dump-6379.rdb dir /var/lib/redis maxclients 10000 maxmemory-policy volatile-lru maxmemory-samples 3 appendfilename appendonly-6379.aof appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb slowlog-log-slower-than 10000 slowlog-max-len 1024 vm-enabled no vm-swap-file /tmp/redis.swap vm-max-memory 0 vm-page-size 32 vm-pages 134217728 vm-max-threads 4 hash-max-zipmap-entries 512 hash-max-zipmap-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 activerehashing yes Redis-cli info: redis-cli info redis_version:2.4.16 redis_git_sha1:00000000 redis_git_dirty:0 arch_bits:64 multiplexing_api:epoll gcc_version:4.4.6 process_id:4174 uptime_in_seconds:79346 uptime_in_days:0 lru_clock:1064644 used_cpu_sys:13.08 used_cpu_user:19.81 used_cpu_sys_children:1.56 used_cpu_user_children:7.69 connected_clients:167 connected_slaves:0 client_longest_output_list:0 client_biggest_input_buf:0 blocked_clients:6 used_memory:15060312 used_memory_human:14.36M used_memory_rss:22061056 used_memory_peak:15265928 used_memory_peak_human:14.56M mem_fragmentation_ratio:1.46 mem_allocator:jemalloc-3.0.0 loading:0 aof_enabled:0 changes_since_last_save:166 bgsave_in_progress:0 last_save_time:1352823542 bgrewriteaof_in_progress:0 total_connections_received:286 total_commands_processed:507254 expired_keys:0 evicted_keys:0 keyspace_hits:1509 keyspace_misses:65167 pubsub_channels:0 pubsub_patterns:0 latest_fork_usec:690 vm_enabled:0 role:master db0:keys=6,expires=0 edit 1: add redis-cli info output

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• Apache server completely freezes until it gets restarted

  - by nbv4

  My server does this every few days. What sucks is that it always seems to do this right after I go to bed, so when I wake up, I'm greeted with the fact that my server has been down for the past 6 or 7 hours. When I first noticed this, I added a cronjob that tries to restart the server every 15 minutes, but I guess that didn't fix it. Once I noticed the server was down, I can this command: /etc/init.d/apache2 restart * Restarting web server apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName ... waiting ...........................................................apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName httpd (pid 17597) already running ...which is odd, because a restart should restart the server, even if it's already running, correct? I eventually had to "stop" then "start" to get it working again. I then looked through the logs, and found something very weird. It seems that around the time the server crashed, the logs have entries that are wildly out of order. It looks a little like this: xx.xxx.xxx.x - - [21/Apr/2010:06:32:05 -0400] "GET / blah" xx.xxx.xxx.x - - [21/Apr/2010:06:51:25 -0400] "GET / blah" x.xx.xxx.xxx - - [21/Apr/2010:06:38:23 -0400] "GET / blah" xxx.xx.xx.xx - - [21/Apr/2010:06:31:56 -0400] "GET / blah" xxx.xx.xx.xx - - [21/Apr/2010:06:51:49 -0400] "GET / blah" xx.xx.xxx.xx - - [21/Apr/2010:06:33:20 -0400] "GET / blah" I don't think the problem is memory, because this: tells me that right before the crash, memory usage is fine. I'm running apache with the worker mpm, here are the settings for that: <IfModule mpm_worker_module> StartServers 1 MaxClients 100 MinSpareThreads 5 MaxSpareThreads 10 ThreadsPerChild 10 MaxRequestsPerChild 3000 </IfModule> This apache server is running a bunch of stuff, but most of the traffic comes from a django project I'm hosting, that uses mod_wsgi. There also is a simple machines forum that is running off of mod_fcgid. Those setting are below: <IfModule mod_fcgid.c> MaxRequestsPerProcess 500 MaxProcessCount 3 AddHandler fcgid-script .php .fcgi AddHandler cgi-script .cgi .pl FCGIWrapper "/usr/bin/php-cgi" .php </IfModule> Anyone know of anything else I can check? I've just about tweaked every single setting I can think of, yet these freezes still happen.

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• My VPS ubuntu server is very slow

  - by askmike

  I just installed a frech copy of Ubuntu 12.04 on my vps because my old installation was very slow, unfortunately this did not fix the problem. With slow I mean requests for my PHP websites take a long time, very slow (30 sec per request) to slow (3+ sec per request). When it's really bad SSH is also laggish. The websites are: askmike.org (pretty standard Wordpress) mvr.me (own PHP) slow? very slow: Here is a picture of loading a clean install of wordpress slow: here is a picture of loading a small PHP based website the vps The VPS has 256mb ram and an 25GB hdd. Besides serving the 2 small websites it isn't doing anything AFAIK. What have I installed Clean Ubuntu server 12.04 LAMP stack few things like git and nodejs (not using both) ossec (because I thought my server was getting hammered) munin What I already tried / done I installed munin so that I could watch io speed and such. The problem is that I don't know where to look for in the munin report. I checked logs and don't see anything strange (although I don't really know where to look for besides strange / repetitive errors and GET requests). I configured Apache MPM to: <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 40 MaxRequestsPerChild 0 </IfModule> (apache is using prefork, the default) Stats I copied the munin report as it appeared at 4:50 last night to a site hosted on a shared webhost. Note that tonight my mysql crashed somewhere after 1:00 (which is a new problem altogether), so therefor the graph for last night might look strange. Can anyone help me get my VPS up to normal speed? EDIT: Thanks for the replies. The VPS is 10 bucks a month and is from directvps.nl (Dutch host and I'm also dutch). I did two speed tests for disk IO: $ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 1073741824 bytes (1.1 GB) copied, 23.1506 s, 46.4 MB/s $ dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync 1073741824 bytes (1.1 GB) copied, 39.3796 s, 27.3 MB/s Anyway: how can I prove to my VPS host that it is to slow? I can understand a server being busy slowing a website down. But 5-30 sec loadtime for a normal PHP webpage?

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• Why is my concurrency capacity so low for my web app on a LAMP EC2 instance?

  - by AMF

  I come from a web developer background and have been humming along building my PHP app, using the CakePHP framework. The problem arose when I began the ab (Apache Bench) testing on the Amazon EC2 instance in which the app resides. I'm getting pretty horrendous average page load times, even though I'm running a c1.medium instance (2 cores, 2GB RAM), and I think I'm doing everything right. I would run: ab -n 200 -c 20 http://localhost/heavy-but-view-cached-page.php Here are the results: Concurrency Level: 20 Time taken for tests: 48.197 seconds Complete requests: 200 Failed requests: 0 Write errors: 0 Total transferred: 392111200 bytes HTML transferred: 392047600 bytes Requests per second: 4.15 [#/sec] (mean) Time per request: 4819.723 [ms] (mean) Time per request: 240.986 [ms] (mean, across all concurrent requests) Transfer rate: 7944.88 [Kbytes/sec] received While the ab test is running, I run VMStat, which shows that Swap stays at 0, CPU is constantly at 80-100% (although I'm not sure I can trust this on a VM), RAM utilization ramps up to about 1.6G (leaving 400M free). Load goes up to about 8 and site slows to a crawl. Here's what I think I'm doing right on the code side: In Chrome browser uncached pages typically load in 800-1000ms, and cached pages load in 300-500ms. Not stunning, but not terrible either. Thanks to view caching, there might be at most one DB query per page-load to write session data. So we can rule out a DB bottleneck. I have APC on. I am using Memcached to serve the view cache and other site caches. xhprof code profiler shows that cached pages take up 10MB-40MB in memory and 100ms - 1000ms in wall time. Pages that would be the worst offenders would look something like this in xhprof: Total Incl. Wall Time (microsec): 330,143 microsecs Total Incl. CPU (microsecs): 320,019 microsecs Total Incl. MemUse (bytes): 36,786,192 bytes Total Incl. PeakMemUse (bytes): 46,667,008 bytes Number of Function Calls: 5,195 My Apache config: KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 3 <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 120 MaxRequestsPerChild 1000 </IfModule> Is there something wrong with the server? Some gotcha with the EC2? Or is it my code? Some obvious setting I should look into? Too many DNS lookups? What am I missing? I really want to get to 1,000 concurrency capacity, but at this rate, it ain't gonna happen.

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• Apache 2.2 and FastCGI stops responding, warnings, crashes

  - by Brett

  I've seen this question posted a few times using a Google search, with no real answers. I have a multi-threaded FastCGI application running with Apache 2.2 on FreeBSD 7.2. There are a few issues with it, and I am unable to really figure out the source of the problem even after poking through a bunch of the mod_fastcgi source code. My FastCGI application gets anywhere from 2 to 15 or so hits per second, and mostly services a back-end API (the majority of web server usage is for this, and not actually serving content). Everything seems to work ok under normal conditions, but recently this problem has been becoming worse. It starts out with the FastCGI process manager apparently trying to close unneeded processes, sending them a SIGTERM signal. I catch the signal, clean up some stuff, and exit (by calling exit()) with status code 0. This process seems to result in three log messages in my httpd error log: [Tue Jun 01 14:03:31 2010] [warn] FastCGI: (dynamic) server "/home/program/wwwroot/domains/www.mydomain.com/cgi-bin/program.cgi" (pid 98182) termination signaled [Tue Jun 01 14:03:31 2010] [warn] FastCGI: (dynamic) server "/home/program/wwwroot/domains/www.mydomain.com/cgi-bin/program.cgi" (pid 98182) terminated by calling exit with status '0' [Tue Jun 01 14:03:31 2010] [warn] FastCGI: (dynamic) server "/home/program/wwwroot/domains/www.mydomain.com/cgi-bin/program.cgi" restarted (pid 98294) I am not sure why it says it is restarting the process, but in any case no core dump is ever generated so I do believe it is the FastCGI process manager doing it's thing. This makes sense because it begins to happen after the initial load increase from restarting Apache. Since it's down for a few seconds, it gets hit with a couple of hundred requests over the first few seconds it's running again (sometimes even hitting the upper limit of MAXCLIENTS in Apache), and this seems to be the process manager doing the work of spawning more processes to handle the increased load. So this all seems fine, but here is where things get weird. There are really two problems that I see. First, my multithreaded FastCGI process spawns 25 worker threads, and all seem to be used according to my internal log files (multiple processes are clearly using multiple threads to do work). However it seems that 3 or 4 FastCGI processes is not enough to handle the 5 to 15 hit per second load, even though the requests take about .02s or so to process internally. In order to be at all responsive, it seems I need 50 or more FastCGI processes, leading me to believe that FastCGI does not realize that my program is multithreaded. I've read the documentation at http://www.fastcgi.com/mod_fastcgi/docs/mod_fastcgi.html and do not see any option pertaining to multithreaded-ness, and my internal code is more or less set up just like the examples provided by the FastCGI library. The second problem I am having is that once process termination has happened a bunch of times as above (and seemingly at random), I begin getting a lot of these messages in my error log: [Tue Jun 01 14:06:22 2010] [warn] (32)Broken pipe: FastCGI: write() to PM failed (ignore if a restart or shutdown is pending) The messages occur for about half the hits I get to the server, and it completely kills the responsiveness of my application - it seems FastCGI will look for a working "pipe" until it finds one, and fail to realize that whatever application it is trying to contact is dead. It does still work though, it's just incredibly unresponsive - sometimes taking up to 40 or so seconds to process a request. I recompiled mod_fastcgi with some extra debugging around the point of the error message, and it appears that the error happens when it tries to write() to the application. The call to write() fails with a -1 return code, and sets errno to EPIPE. I am noticing that the issue happens mostly when either a crash occurs in one of the FastCGI processes, or a bunch of them are seemingly terminated by the process manager. I haven't had any core dumps though, except for one, where the backtrace outputted by gdb is just a single call to free() at address 0x0000000000000000 with nothing else in the stack trace, so I don't really know what to make of that. I'm thinking it happens sometime after the SIGTERM signal is caught, maybe some global variable not being cleaned up properly or something.

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• apache eat up too many ram per child

  - by mrc4r7m4n

  Hello to everyone. I've got fallowing problem: Apache eat to many ram per child. The fallowing comments shows: cat /etc/redhat-release -- Fedora release 8 (Werewolf) free -m: total used free shared buffers cached Mem: 3566 3136 429 0 339 1907 -/+ buffers/cache: 889 2676 Swap: 4322 0 4322 I know that you will say that there is nothing to worry about because swap is not use, but i think it's not use for now. 3.httpd -v: Server version: Apache/2.2.14 (Unix) 4.httpd -l: Compiled in modules: core.c mod_authn_file.c mod_authn_default.c mod_authz_host.c mod_authz_groupfile.c mod_authz_user.c mod_authz_default.c mod_auth_basic.c mod_include.c mod_filter.c mod_log_config.c mod_env.c mod_setenvif.c mod_version.c mod_ssl.c prefork.c http_core.c mod_mime.c mod_status.c mod_autoindex.c mod_asis.c mod_cgi.c mod_negotiation.c mod_dir.c mod_actions.c mod_userdir.c mod_alias.c mod_rewrite.c mod_so.c 5.List of loaded dynamic modules: LoadModule authz_host_module modules/mod_authz_host.so LoadModule include_module modules/mod_include.so LoadModule log_config_module modules/mod_log_config.so LoadModule setenvif_module modules/mod_setenvif.so LoadModule mime_module modules/mod_mime.so LoadModule autoindex_module modules/mod_autoindex.so LoadModule vhost_alias_module modules/mod_vhost_alias.so LoadModule negotiation_module modules/mod_negotiation.so LoadModule dir_module modules/mod_dir.so LoadModule alias_module modules/mod_alias.so LoadModule rewrite_module modules/mod_rewrite.so LoadModule proxy_module modules/mod_proxy.so LoadModule cgi_module modules/mod_cgi.so 6.My prefrok directive <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 25 ServerLimit 80 MaxClients 80 MaxRequestsPerChild 4000 </IfModule> KeepAliveTimeout 6 MaxKeepAliveRequests 100 KeepAlive On 7.top -u apache: ctrl+ M top - 09:19:42 up 2 days, 19 min, 2 users, load average: 0.85, 0.87, 0.80 Tasks: 113 total, 1 running, 112 sleeping, 0 stopped, 0 zombie Cpu(s): 7.3%us, 15.7%sy, 0.0%ni, 75.7%id, 0.0%wa, 0.7%hi, 0.7%si, 0.0%st Mem: 3652120k total, 3149964k used, 502156k free, 348048k buffers Swap: 4425896k total, 0k used, 4425896k free, 1944952k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 16956 apache 20 0 700m 135m 100m S 0.0 3.8 2:16.78 httpd 16953 apache 20 0 565m 130m 96m S 0.0 3.7 1:57.26 httpd 16957 apache 20 0 587m 129m 102m S 0.0 3.6 1:47.41 httpd 16955 apache 20 0 567m 126m 93m S 0.0 3.6 1:43.60 httpd 17494 apache 20 0 626m 125m 96m S 0.0 3.5 1:58.77 httpd 17515 apache 20 0 540m 120m 88m S 0.0 3.4 1:45.57 httpd 17516 apache 20 0 573m 120m 88m S 0.0 3.4 1:50.51 httpd 16954 apache 20 0 551m 120m 88m S 0.0 3.4 1:52.47 httpd 17493 apache 20 0 586m 120m 94m S 0.0 3.4 1:51.02 httpd 17279 apache 20 0 568m 117m 87m S 16.0 3.3 1:51.87 httpd 17302 apache 20 0 560m 116m 90m S 0.3 3.3 1:59.06 httpd 17495 apache 20 0 551m 116m 89m S 0.0 3.3 1:47.51 httpd 17277 apache 20 0 476m 114m 81m S 0.0 3.2 1:37.14 httpd 30097 apache 20 0 536m 113m 83m S 0.0 3.2 1:47.38 httpd 30112 apache 20 0 530m 112m 81m S 0.0 3.2 1:40.15 httpd 17513 apache 20 0 516m 112m 85m S 0.0 3.1 1:43.92 httpd 16958 apache 20 0 554m 111m 82m S 0.0 3.1 1:44.18 httpd 1617 apache 20 0 487m 111m 85m S 0.0 3.1 1:31.67 httpd 16952 apache 20 0 461m 107m 75m S 0.0 3.0 1:13.71 httpd 16951 apache 20 0 462m 103m 76m S 0.0 2.9 1:28.05 httpd 17278 apache 20 0 497m 103m 76m S 0.0 2.9 1:31.25 httpd 17403 apache 20 0 537m 102m 79m S 0.0 2.9 1:52.24 httpd 25081 apache 20 0 412m 101m 70m S 0.0 2.8 1:01.74 httpd I guess thats all information needed to help me solve this problem. I think the virt memory is to big, the same res. The consumption of ram is increasing all the time. Maybe it's memory leak because i see there is so many static modules compiled. Could someone help me with this issue? Thank you in advance.

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• FFSERVER - streaming an ASF video as Webm output

  - by Emmanuel Brunet

  I'm trying to stream an IP webcam ASF live stream to a ffserver to output a webm video format. The server starts successfully but the ffserver commands used to feed the ffserver fails and generates a core dump. Environment Debian 7.5 ffmpeg 2.2 Input stream $ ffprobe http://account:password@webcam/videostream.asf Input #0, asf, from 'http://admin:alpha1237@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, 1 channels, s16p, 32 kb/s ffserver configuration my ffserver configuration is : Port 8091 RTSPPort 554 BindAddress 192.168.1.62 MaxHTTPConnections 1000 MaxClients 100 MaxBandwidth 1000 CustomLog - <Feed webcam.ffm> File /tmp/webcam.ffm FileMaxSize 500M ACL allow localhost ACL allow 192.168.0.0 192.168.255.255 </Feed> <Stream webcam.webm> # Output stream URL definition Feed webcam.ffm # Feed from which to receive video Format webm # Audio settings AudioCodec vorbis AudioBitRate 64 # Audio bitrate # Video settings VideoCodec libvpx VideoSize 640x480 # Video resolution VideoFrameRate 25 # Video FPS AVOptionVideo flags +global_header # Parameters passed to encoder # (same as ffmpeg command-line parameters) AVOptionVideo cpu-used 0 AVOptionVideo qmin 10 AVOptionVideo qmax 42 AVOptionVideo quality good AVOptionAudio flags +global_header PreRoll 15 StartSendOnKey # VideoBitRate 32 # Video bitrate </Stream> <Stream status.html> Format status # Only allow local people to get the status ACL allow localhost ACL allow 192.168.0.0 192.168.255.255 </Stream> ffmpeg feed I run the following command that fails $ ffmpeg -i http://account:password@webcam/videostream.asf http://192.168.1.62:8091/webcam.ffm http://192.168.1.62:8091/webcam.ffm Input #0, asf, from 'http://account:password@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s [swscaler @ 0x36a80c0] deprecated pixel format used, make sure you did set range correctly Segmentation fault I tryed $ ffmpeg -i http://account:password@webcam/videostream.asf -pix_fmt yuv420p http://192.168.1.62:8091/webcam.ffm But it raises the same error. Thanks for your help Edit For an easy testing (I thought), I tried to publish the whole ASF stream as is, meaning connecting the ASF webcam output stream to the ffserver that outputs ASF format too. And thus with mirrored encoding so I changed the ffserver configuration to ... <Stream webcam.asf> Feed webcam.ffm Format asf VideoFrameRate 25 VideoSize 640X480 VideoBitRate 256 VideoBufferSize 1000 VideoGopSize 30 AudioBitRate 32 StartSendOnKey </Stream> ... And the output is now : Input #0, asf, from 'http://admin:alpha1237@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 1k tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s [swscaler @ 0x3d620c0] deprecated pixel format used, make sure you did set range correctly Output #0, ffm, to 'http://192.168.1.62:8091/webcam.ffm': Metadata: creation_time : now encoder : Lavf55.40.100 Stream #0:0: Audio: wmav2, 22050 Hz, mono, fltp, 32 kb/s Metadata: encoder : Lavc55.64.100 wmav2 Stream #0:1: Video: msmpeg4v3 (msmpeg4), yuv420p, 640x480, q=2-31, 256 kb/s, 1k fps, 1000k tbn, 1k tbc Metadata: Stream mapping: Stream #0:1 -> #0:0 (adpcm_ima_wav -> wmav2) Stream #0:0 -> #0:1 (mjpeg -> msmpeg4) Press [q] to stop, [?] for help Segmentation fault I can't even forward the stream.

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• Performance Tuning a High-Load Apache Server

  - by futureal

  I am looking to understand some server performance problems I am seeing with a (for us) heavily loaded web server. The environment is as follows: Debian Lenny (all stable packages + patched to security updates) Apache 2.2.9 PHP 5.2.6 Amazon EC2 large instance The behavior we're seeing is that the web typically feels responsive, but with a slight delay to begin handling a request -- sometimes a fraction of a second, sometimes 2-3 seconds in our peak usage times. The actual load on the server is being reported as very high -- often 10.xx or 20.xx as reported by top. Further, running other things on the server during these times (even vi) is very slow, so the load is definitely up there. Oddly enough Apache remains very responsive, other than that initial delay. We have Apache configured as follows, using prefork: StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 And KeepAlive as: KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 5 Looking at the server-status page, even at these times of heavy load we are rarely hitting the client cap, usually serving between 80-100 requests and many of those in the keepalive state. That tells me to rule out the initial request slowness as "waiting for a handler" but I may be wrong. Amazon's CloudWatch monitoring tells me that even when our OS is reporting a load of 15, our instance CPU utilization is between 75-80%. Example output from top: top - 15:47:06 up 31 days, 1:38, 8 users, load average: 11.46, 7.10, 6.56 Tasks: 221 total, 28 running, 193 sleeping, 0 stopped, 0 zombie Cpu(s): 66.9%us, 22.1%sy, 0.0%ni, 2.6%id, 3.1%wa, 0.0%hi, 0.7%si, 4.5%st Mem: 7871900k total, 7850624k used, 21276k free, 68728k buffers Swap: 0k total, 0k used, 0k free, 3750664k cached The majority of the processes look like: 24720 www-data 15 0 202m 26m 4412 S 9 0.3 0:02.97 apache2 24530 www-data 15 0 212m 35m 4544 S 7 0.5 0:03.05 apache2 24846 www-data 15 0 209m 33m 4420 S 7 0.4 0:01.03 apache2 24083 www-data 15 0 211m 35m 4484 S 7 0.5 0:07.14 apache2 24615 www-data 15 0 212m 35m 4404 S 7 0.5 0:02.89 apache2 Example output from vmstat at the same time as the above: procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 8 0 0 215084 68908 3774864 0 0 154 228 5 7 32 12 42 9 6 21 0 198948 68936 3775740 0 0 676 2363 4022 1047 56 16 9 15 23 0 0 169460 68936 3776356 0 0 432 1372 3762 835 76 21 0 0 23 1 0 140412 68936 3776648 0 0 280 0 3157 827 70 25 0 0 20 1 0 115892 68936 3776792 0 0 188 8 2802 532 68 24 0 0 6 1 0 133368 68936 3777780 0 0 752 71 3501 878 67 29 0 1 0 1 0 146656 68944 3778064 0 0 308 2052 3312 850 38 17 19 24 2 0 0 202104 68952 3778140 0 0 28 90 2617 700 44 13 33 5 9 0 0 188960 68956 3778200 0 0 8 0 2226 475 59 17 6 2 3 0 0 166364 68956 3778252 0 0 0 21 2288 386 65 19 1 0 And finally, output from Apache's server-status: Server uptime: 31 days 2 hours 18 minutes 31 seconds Total accesses: 60102946 - Total Traffic: 974.5 GB CPU Usage: u209.62 s75.19 cu0 cs0 - .0106% CPU load 22.4 requests/sec - 380.3 kB/second - 17.0 kB/request 107 requests currently being processed, 6 idle workers C.KKKW..KWWKKWKW.KKKCKK..KKK.KKKK.KK._WK.K.K.KKKKK.K.R.KK..C.C.K K.C.K..WK_K..KKW_CK.WK..W.KKKWKCKCKW.W_KKKKK.KKWKKKW._KKK.CKK... KK_KWKKKWKCKCWKK.KKKCK.......................................... ................................................................ From my limited experience I draw the following conclusions/questions: We may be allowing far too many KeepAlive requests I do see some time spent waiting for IO in the vmstat although not consistently and not a lot (I think?) so I am not sure this is a big concern or not, I am less experienced with vmstat Also in vmstat, I see in some iterations a number of processes waiting to be served, which is what I am attributing the initial page load delay on our web server to, possibly erroneously We serve a mixture of static content (75% or higher) and script content, and the script content is often fairly processor intensive, so finding the right balance between the two is important; long term we want to move statics elsewhere to optimize both servers but our software is not ready for that today I am happy to provide additional information if anybody has any ideas, the other note is that this is a high-availability production installation so I am wary of making tweak after tweak, and is why I haven't played with things like the KeepAlive value myself yet.

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• Is Apache 2.2.22 able to sustain 1.000 simultaneous connected clients?

  - by Fnux

  For an article in a news paper, I'm benchmarking 5 different web servers (Apache2, Cherokee, Lighttpd, Monkey and Nginx). The tests made consist of measuring the execution times as well as different parameters such as the number of request served per second, the amount of RAM, the CPU used, during a growing load of simultaneous clients (from 1 to 1.000 with a step of 10) each client sending 1.000.000 requets of a small fixed file, then of a medium fixed file, then a small dynamic content (hello.php) and finally a complex dynamic content (the computation of the reimbursment of a loan). All the web servers are able to sustain such a load (up to 1.000 clients) but Apache2 which always stops to respond when the test reach 450 to 500 simultaneous clients. My configuration is : CPU: AMD FX 8150 8 cores @ 4.2 GHz RAM: 32 Gb. SSD: 2 x Crucial 240 Gb SATA6 OS: Ubuntu 12.04.3 64 bit WS: Apache 2.2.22 My Apache2 configuration is as follows: /etc/apache2/apache2.conf LockFile ${APACHE_LOCK_DIR}/accept.lock PidFile ${APACHE_PID_FILE} Timeout 30 KeepAlive On MaxKeepAliveRequests 1000000 KeepAliveTimeout 2 ServerName "fnux.net" <IfModule mpm_prefork_module> StartServers 16 MinSpareServers 16 MaxSpareServers 16 ServerLimit 2048 MaxClients 1024 MaxRequestsPerChild 0 </IfModule> User ${APACHE_RUN_USER} Group ${APACHE_RUN_GROUP} AccessFileName .htaccess <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> DefaultType None HostnameLookups Off ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel emerg Include mods-enabled/*.load Include mods-enabled/*.conf Include httpd.conf Include ports.conf LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent Include conf.d/ Include sites-enabled/ /etc/apache2/ports.conf NameVirtualHost *:8180 Listen 8180 <IfModule mod_ssl.c> Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> /etc/apache2/mods-available <IfModule mod_fastcgi.c> AddHandler php5-fcgi .php Action php5-fcgi /cgi-bin/php5.external <Location "/cgi-bin/php5.external"> Order Deny,Allow Deny from All Allow from env=REDIRECT_STATUS </Location> </IfModule> /etc/apache2/sites-available/default <VirtualHost *:8180> ServerAdmin webmaster@localhost DocumentRoot /var/www/apache2 <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel emerg ##### CustomLog ${APACHE_LOG_DIR}/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> <IfModule mod_fastcgi.c> AddHandler php5-fcgi .php Action php5-fcgi /php5-fcgi Alias /php5-fcgi /usr/lib/cgi-bin/php5-fcgi FastCgiExternalServer /usr/lib/cgi-bin/php5-fcgi -host 127.0.0.1:9000 -pass-header Authorization </IfModule> </VirtualHost> /etc/security/limits.conf * soft nofile 1000000 * hard nofile 1000000 So, I would trully appreciate your advice to setup Apache2 to make it able to sustain 1.000 simultaneous clients, if this is even possible. TIA for your help. Cheers.

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• ffserver-2.2 - streaming an ASF video as Webm output with ffserver on Debian 7.5

  - by Emmanuel Brunet

  I'm trying to stream an IP webcam ASF live stream to a ffserver to output a webm video format. The server starts successfully but the ffserver commands used to feed the ffserver fails and generates a core dump. Input stream $ ffprobe http://account:password@webcam/videostream.asf Input #0, asf, from 'http://account:password@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, 1 channels, s16p, 32 kb/s ffserver configuration my ffserver configuration is : Port 8091 RTSPPort 554 BindAddress 192.168.1.62 MaxHTTPConnections 1000 MaxClients 100 MaxBandwidth 1000 CustomLog - <Feed webcam.ffm> File /tmp/webcam.ffm FileMaxSize 500M ACL allow localhost ACL allow 192.168.0.0 192.168.255.255 </Feed> <Stream webcam.webm> # Output stream URL definition Feed webcam.ffm # Feed from which to receive video Format webm # Audio settings AudioCodec vorbis AudioBitRate 64 # Audio bitrate # Video settings VideoCodec libvpx VideoSize 640x480 # Video resolution VideoFrameRate 25 # Video FPS AVOptionVideo flags +global_header # Parameters passed to encoder # (same as ffmpeg command-line parameters) AVOptionVideo cpu-used 0 AVOptionVideo qmin 10 AVOptionVideo qmax 42 AVOptionVideo quality good AVOptionAudio flags +global_header PreRoll 15 StartSendOnKey # VideoBitRate 32 # Video bitrate </Stream> <Stream status.html> Format status # Only allow local people to get the status ACL allow localhost ACL allow 192.168.0.0 192.168.255.255 </Stream> ffmpeg feed I run the following command that fails $ ffmpeg -i http://account:password@webcam/videostream.asf http://ffserver_ip:port/webcam.ffm http://192.168.1.62:8091/webcam.ffm Input #0, asf, from 'http://account:password@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 25 tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s [swscaler @ 0x36a80c0] deprecated pixel format used, make sure you did set range correctly Segmentation fault I tryed $ ffmpeg -i http://account:password@webcam/videostream.asf -pix_fmt yuv420p http://ffserver_ip:port/webcam.ffm But it raises the same error. Thanks for your help Edit For an easy testing (I thought), I tried to publish the whole ASF stream as is, meaning connecting the ASF webcam output stream to the ffserver that outputs ASF format too. And thus with mirrored encoding so I changed the ffserver configuration to ... <Stream webcam.asf> Feed webcam.ffm Format asf VideoFrameRate 25 VideoSize 640X480 VideoBitRate 256 VideoBufferSize 1000 VideoGopSize 30 AudioBitRate 32 StartSendOnKey </Stream> ... And the output is now : Input #0, asf, from 'http://admin:alpha1237@webcam/videostream.asf': Duration: N/A, start: 0.000000, bitrate: 32 kb/s Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj422p(pc), 640x480, 1k tbr, 1k tbn, 1k tbc Stream #0:1: Audio: adpcm_ima_wav ([17][0][0][0] / 0x0011), 8000 Hz, mono, s16p, 32 kb/s [swscaler @ 0x3d620c0] deprecated pixel format used, make sure you did set range correctly Output #0, ffm, to 'http://192.168.1.62:8091/webcam.ffm': Metadata: creation_time : now encoder : Lavf55.40.100 Stream #0:0: Audio: wmav2, 22050 Hz, mono, fltp, 32 kb/s Metadata: encoder : Lavc55.64.100 wmav2 Stream #0:1: Video: msmpeg4v3 (msmpeg4), yuv420p, 640x480, q=2-31, 256 kb/s, 1k fps, 1000k tbn, 1k tbc Metadata: Stream mapping: Stream #0:1 -> #0:0 (adpcm_ima_wav -> wmav2) Stream #0:0 -> #0:1 (mjpeg -> msmpeg4) Press [q] to stop, [?] for help Segmentation fault I can't even forward the stream. Thanks for your help again.

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• apache webserver unresponsible with server-status showing all child processes waiting for connection

  - by Jeff

  My setup: i have 3 nearly identical webserver machines serving the same high loaded dynamic website with simple load balancing over dns. The service has been working for over two ears with the same apache config. apache2, php5, ubuntu 8.04 linux 2.6.24-29-server My problem: since about two weeks i'm experiencing problems with this config. Nearly every day i have one small moment about 5 minutes, in which the website is unreachable. I'm still able to login to the servers over ssh. If i run htop, i see the machine simply doing nothing. i have about 1000 apache processes running, but no cpu activity. i've used the apache mod_status to debug this situation. the process scoreboard looks like this: _C.___K_______________________R._______.__K_K____K___C_______.__ _______C__________.___________________________________.________C _.____K__________K___K_WK_____._K_____________________________._ W______K__________K________.____________________._______C_______ _C_.__K__K____.._.._____________________________________C_______ _R___________K___.______C________.C_________.______._____C______ ____________KKC____K_____K__WC_________________C_____.__.____.__ _____________________C_________K______.____C______._____________ _.___C____.___.___________________________.K______.____K________ W__.___________________C.__.____K________K_______R_._.__._______ __C__C_.__________C__C_______._____W______________C_.___C_______ ____.______C_____________C________.____C____________.________._K __.__________.K_____________K_________._____C____.K__________KW_ __K.W________R_________._______.___W___________.____.__K_____W__ W___.___..________W____K Scoreboard Key: "_" Waiting for Connection, "S" Starting up, "R" Reading Request, "W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup, "C" Closing connection, "L" Logging, "G" Gracefully finishing, "I" Idle cleanup of worker, "." Open slot with no current process So the most of the processes are just waiting for connection. after about 5 minutes the situation will return to normal: i have lot least processes on every machine, the most workers have the "."-status (meaing they are open to process a request) and of course the website is reachable! so i'm trying to find something in the logs, but there is simply nothing... the apache access log is silent for about 4 minutes, the same is for the error log. i also can not figure out anything wrong in other system logs. the situation is the same on all 3 webservers (all of them have this load peak and unresposibility at the same time), so i do not thing this is hardware related. but i think, this might be related to some network (tcp) issue. any ideas? EDIT: some more information, that i have just discovered: it has just happened again. and i was able to verify that i'm also not able to connect locally when this problem occurs. i have made some connection statistics with the following command after it happend netstat -an|awk '/tcp/ {print $6}'|sort|uniq -c 109 CLOSE_WAIT 2652 ESTABLISHED 2 FIN_WAIT1 11 LAST_ACK 12 LISTEN 91 SYN_RECV 1 SYN_SENT 16 TIME_WAIT If i execute the same command some time later, i have something like this: 4 CLOSING 108 ESTABLISHED 18 FIN_WAIT1 182 FIN_WAIT2 37 LAST_ACK 12 LISTEN 50 SYN_RECV 11276 TIME_WAIT So in the normal situation i have only 100-200 open connections by clients beeing handled by apache in this moment. when i have this "crash", i have a lot more connections. what is the best way to analyse this? EDIT2: the important lines in apache2.conf are: KeepAlive On MaxKeepAliveRequests 20 KeepAliveTimeout 1 <IfModule mpm_prefork_module> ServerLimit 920 StartServers 30 MinSpareServers 80 MaxSpareServers 120 MaxClients 920 MaxRequestsPerChild 700 </IfModule> it is an apache2 prefork with php_mod. the server has 8GB ram and a 4gb swap partition.

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• Why are my httpd mpm_prefork processes being reaped so quickly?

  - by Dan Pritts

  We've got a system running RHEL6, x64. We are using a local installation of apache 2.2.22 from source. we serve primarily: mod_perl applications (with a local installation of perl 5.16.0) tomcat applications proxied with mod_jk Here is some context; the main question is below. All of this talks to an Oracle backend. We are having issues with Oracle becoming unresponsive. We think this is because we're hitting the maximum process limit in oracle. We've upped the process limit, but now we are hitting memory pressure on the oracle server. We have tons of oracle sessions sitting idle. I can trace a bunch of them back to the httpd processes. We have mod_perl's Apache::DBI start up a new connection to the database with each httpd child that's spawned. We are concerned that these are not always getting closed out properly when the httpd's exit...and the httpd's are exiting very frequently. I know that it would be good to modify the mod_perl applications to use some better form of db connection pooling; we plan to pursue that but would like to solve our immediate problem sooner. So here's the main question. We are using the prefork MPM. The apache child processes are lasting at most a few minutes. Log analysis shows that each one is serving fewer than 50 clients before exiting; the last request each child serves is OPTIONS * HTTP/1.0 on some sort of internal connection; I'm under the impression that this is a "ping" from the master process. I've adjusted the MPM config as follows. I didn't want to raise MinSpareServers too high, because, after all, i'm trying to minimize the number of sessions to oracle. MinSpareServers 5 MaxSpareServers 30 MaxClients 150 MaxRequestsPerChild 10000 Right now we're serving 250-300 requests per minute. We've got 21 httpd's running, the eldest (other than the master, owned by root) being 3 minutes old. This rate of reaping of the apache children really seems excessive. What could be causing it? Apache was built with: $ ./configure --prefix=/opt/apache --with-ssl=/usr/lib --enable-expires --enable-ext-filter --enable-info --enable-mime-magic --enable-rewrite --enable-so --enable-speling --enable-ssl --enable-usertrack --enable-proxy --enable-headers --enable-log-forensic Apache config info: % /opt/apache/bin/httpd -V Server version: Apache/2.2.22 (Unix) Server built: Jul 23 2012 22:30:13 Server's Module Magic Number: 20051115:30 Server loaded: APR 1.4.5, APR-Util 1.4.1 Compiled using: APR 1.4.5, APR-Util 1.4.1 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count) Server compiled with.... -D APACHE_MPM_DIR="server/mpm/prefork" -D APR_HAS_SENDFILE -D APR_HAS_MMAP -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) -D APR_USE_SYSVSEM_SERIALIZE -D APR_USE_PTHREAD_SERIALIZE -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT -D APR_HAS_OTHER_CHILD -D AP_HAVE_RELIABLE_PIPED_LOGS -D DYNAMIC_MODULE_LIMIT=128 -D HTTPD_ROOT="/opt/apache" -D SUEXEC_BIN="/opt/apache/bin/suexec" -D DEFAULT_PIDLOG="logs/httpd.pid" -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" -D DEFAULT_LOCKFILE="logs/accept.lock" -D DEFAULT_ERRORLOG="logs/error_log" -D AP_TYPES_CONFIG_FILE="conf/mime.types" -D SERVER_CONFIG_FILE="conf/httpd.conf" modules are compiled into apache rather than shared libs: % /opt/apache/bin/httpd -l Compiled in modules: core.c mod_authn_file.c mod_authn_default.c mod_authz_host.c mod_authz_groupfile.c mod_authz_user.c mod_authz_default.c mod_auth_basic.c mod_ext_filter.c mod_include.c mod_filter.c mod_log_config.c mod_log_forensic.c mod_env.c mod_mime_magic.c mod_expires.c mod_headers.c mod_usertrack.c mod_setenvif.c mod_version.c mod_proxy.c mod_proxy_connect.c mod_proxy_ftp.c mod_proxy_http.c mod_proxy_scgi.c mod_proxy_ajp.c mod_proxy_balancer.c mod_ssl.c prefork.c http_core.c mod_mime.c mod_status.c mod_autoindex.c mod_asis.c mod_info.c mod_cgi.c mod_negotiation.c mod_dir.c mod_actions.c mod_speling.c mod_userdir.c mod_alias.c mod_rewrite.c mod_so.c One final note - the red hat httpd, apr, and perl packages are all installed, but ldd shows that none of those libraries are linked with the running httpd.

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• what is best config for nginx worker_rlimit_nofile and worker_connections 28672

  - by Binh Nguyen

  i have issue of web-brower response ( especially on ie ) very slow, some time time out, and sometime hang out up to 20 seconds for one file redirect 301 when test with "f12 derverloper tool of ie" .. it report wait/start time very long. but after got connected the elements on web weill be dowload and show out fast ( test at xaluan.com ) It most happen when active user on web more than 2100 ( use google real time live analytic ). server running cenos 5 with ngix, apache, 32core cpu, 96G ram, raid 10 sas hdd.. == flowing is my config == user nobody; # no need for more workers in the proxy mode worker_processes 28; #old 32 #good at 24 error_log /var/log/nginx/error.log; #old add in end: info worker_rlimit_nofile 22528; events { worker_connections 22528; use epoll; # you should use epoll here for Linux kernels 2.6.x } http { server_name_in_redirect off; server_names_hash_max_size 10240; server_names_hash_bucket_size 1024; include mime.types; default_type application/octet-stream; server_tokens off; disable_symlinks off; sendfile on; tcp_nopush on; tcp_nodelay on; server_name_in_redirect off; server_names_hash_max_size 10240; server_names_hash_bucket_size 1024; include mime.types; default_type application/octet-stream; server_tokens off; disable_symlinks off; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 25; #old 5 gzip on; #old on gzip_vary on; gzip_disable "MSIE [1-6]\."; gzip_proxied any; gzip_http_version 1.1; gzip_min_length 1000; gzip_comp_level 6; gzip_buffers 16 8k; ignore_invalid_headers on; client_header_timeout 1m; #3m client_body_timeout 1m; #3m send_timeout 1m; #3m reset_timedout_connection on; connection_pool_size 256; client_header_buffer_size 256k; large_client_header_buffers 4 256k; client_max_body_size 100M; client_body_buffer_size 256k; request_pool_size 32k; output_buffers 4 32k; postpone_output 1460; proxy_temp_path /tmp/nginx_proxy/; client_body_in_file_only on; log_format bytes_log "$msec $bytes_sent ."; limit_conn_zone $binary_remote_addr zone=limit_per_ip:1m; limit_conn limit_per_ip 20; limit_req_zone $binary_remote_addr zone=allips:5m rate=200r/s; limit_req zone=allips burst=200 nodelay; include "/etc/nginx/vhosts/*"; } =========== I have play around with worker config 1- tried increase as some one suggess: worker_rlimit_nofile = worker_connections = worker_processes * 1024 = 32768 2- tried to set low: worker_processes = 28 and other worker at 22582 and other solution too .. but not work cause some time it make server load hight very quick 3- tried to comment out the # worker_rlimit_nofile . so it will be unlimited. it look like solved a bit about issue response time. but it also make server high load quick in peak time... Please help thanks PS: other apache you may have look for help me out thanks Listen 0.0.0.0:8081 User nobody Group nobody ExtendedStatus On ServerAdmin [email protected] ServerName server.xaluan.com LogLevel warn # These can be set in WHM under 'Apache Global Configuration' Timeout 100 TraceEnable Off ServerSignature Off ServerTokens ProductOnly FileETag None StartServers 15 <IfModule prefork.c> MinSpareServers 20 MaxSpareServers 50 #MaxSpareServers 40 </IfModule> ServerLimit 1572 MaxClients 1572 MaxRequestsPerChild 4000 # MaxRequestsPerChild 3000 KeepAlive On KeepAliveTimeout 3 MaxKeepAliveRequests 300 #MaxKeepAliveRequests 130

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• VPS 512 MB RAM with WordPressMU comes to consumes lots of memory

  - by CAPitalZ

  I have googled for days and gathered all optimization suggestions and tried. My sites are not getting any high hits. May be like 100 hits per day [all my sites combined]. Here are my specs I have 512 MB RAM VPS with burstable 1024 MB. Centos 5 32-bit & cPanel/WHM Apache 2.2 MySQL 5.0 PHP 5.3.2 Here is my Configs I have 2 WordPressMU production sites, and 1 test site my.cnf # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /var/lib/mysql/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port = 3306 socket = /var/lib/mysql/mysql.sock skip-locking skip-bdb skip-innodb key_buffer = 16M max_allowed_packet = 1M table_cache = 64 sort_buffer_size = 512K net_buffer_length = 8K read_buffer_size = 256K read_rnd_buffer_size = 512K myisam_sort_buffer_size = 8M #CAPitalZ thread_cache_size=8 thread_concurrency=4 #query_cache_type=1 #query_cache_limit=1M query_cache_size=16M concurrent_insert=2 low_priority_updates=1 max_connections=50 tmp_table_size=16M max_heap_table_size=16M join_buffer_size=1M interactive_timeout=25 wait_timeout=1000 #connect_timout=10 not able to restart mysql max_connect_errors=10 # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # skip-networking # Disable Federated by default skip-federated # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id = 1 [mysqld_safe] open_files_limit=8192 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [isamchk] key_buffer = 20M sort_buffer_size = 20M read_buffer = 2M write_buffer = 2M [myisamchk] key_buffer = 20M sort_buffer_size = 20M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout httpd.conf I have unselected many modules and recompiled using EasyApache in WHM. Only have the following modules built Deflate Expires Fileprotect Imagemap MPM Prefork Version [default] EAccelerator for PHP Bcmath Calendar CurlSSL [I'm using Curl. But I don't have any https sites] Expat GD [for image cropping] Gettext Imap Mbregex [default] Mbstring [need both Mbregex and Mbstring for utf-8] Mysql of the system MySQL "Improved" extension. Sockets TTF (FreeType) [I'm using custom font] Zlib Under Global Configuration I only have FollowSymLinks enabled I Have TraceEnable, ServerSignature, FileETag OFF ServerTokens ProductOnly DirectoryIndex Priority has index.php as the first one I have removed Clamd [Clam Anti-virus] SpamAssasin is Off Under Tweak Settings Default catch-all/default address behavior for new accounts. This is set to "fail" All stats programs turned off I have eAccelerator installed and checked in phpinfo and its working [Pre VirtualHost Include under WHM] Timeout 20 KeepAlive On MaxKeepAliveRequests 200 KeepAliveTimeout 3 MinSpareServers 1 MaxSpareServers 3 StartServers 1 ServerLimit 50 MaxClients 50 MaxRequestsPerChild 4000 ExtendedStatus Off #ServerType standalone this throws error HostnameLookups Off <Directory "/"> AllowOverride None </Directory> My sites will take ages to load and WHM/CPanel will not even load. adadaa.com/ http://adadaa.net/ kadais.ca/ My average memory consumption is like 1000 MB! [yes always bursting] The process that consumes most CPU and also most memory is mysql But I also get like 15 httpd processes [when its bursting] I already got warning from cpuwatchcheck saying "While processing, the cpu has been maxed out for more than a 6 hour period. The current load/uptime line on the server at the time of this email is 07:00:37 up 11:30, 0 users, load average: 14.64, 16.79, 20.07" I don't know, I have tried switching these config values many different times, but nothing seems to work. Please show some light... Thanks

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• Apache load balancer limits with Tomcat over AJP

  - by PAS

  Hi All, I have Apache acting as a load balancer in front of 3 Tomcat servers. Occasionally, Apache returns 503 responses, which I would like to remove completely. All 4 servers are not under significant load in terms of CPU, memory, or disk, so I am a little unsure what is reaching it's limits or why. 503s are returned when all workers are in error state - whatever that means. Here are the details: Apache config: <IfModule mpm_prefork_module> StartServers 30 MinSpareServers 30 MaxSpareServers 60 MaxClients 200 MaxRequestsPerChild 1000 </IfModule> ... <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> # Tomcat HA cluster <Proxy balancer://mycluster> BalancerMember ajp://10.176.201.9:8009 keepalive=On retry=1 timeout=1 ping=1 BalancerMember ajp://10.176.201.10:8009 keepalive=On retry=1 timeout=1 ping=1 BalancerMember ajp://10.176.219.168:8009 keepalive=On retry=1 timeout=1 ping=1 </Proxy> # Passes thru track. or api. ProxyPreserveHost On ProxyStatus On # Original tracker ProxyPass /m balancer://mycluster/m ProxyPassReverse /m balancer://mycluster/m Tomcat config: <Server port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <Listener className="org.apache.catalina.core.JasperListener" /> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <Service name="Catalina"> <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> <Engine name="Catalina" defaultHost="localhost"> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true" xmlValidation="false" xmlNamespaceAware="false"> </Engine> </Service> </Server> Apache error log: [Mon Mar 22 18:39:47 2010] [error] (70007)The timeout specified has expired: proxy: AJP: attempt to connect to 10.176.201.10:8009 (10.176.201.10) failed [Mon Mar 22 18:39:47 2010] [error] ap_proxy_connect_backend disabling worker for (10.176.201.10) [Mon Mar 22 18:39:47 2010] [error] proxy: AJP: failed to make connection to backend: 10.176.201.10 [Mon Mar 22 18:39:47 2010] [error] (70007)The timeout specified has expired: proxy: AJP: attempt to connect to 10.176.201.9:8009 (10.176.201.9) failed [Mon Mar 22 18:39:47 2010] [error] ap_proxy_connect_backend disabling worker for (10.176.201.9) [Mon Mar 22 18:39:47 2010] [error] proxy: AJP: failed to make connection to backend: 10.176.201.9 [Mon Mar 22 18:39:47 2010] [error] (70007)The timeout specified has expired: proxy: AJP: attempt to connect to 10.176.219.168:8009 (10.176.219.168) failed [Mon Mar 22 18:39:47 2010] [error] ap_proxy_connect_backend disabling worker for (10.176.219.168) [Mon Mar 22 18:39:47 2010] [error] proxy: AJP: failed to make connection to backend: 10.176.219.168 [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state [Mon Mar 22 18:39:47 2010] [error] proxy: BALANCER: (balancer://mycluster). All workers are in error state Load balancer top info: top - 23:44:11 up 210 days, 4:32, 1 user, load average: 0.10, 0.11, 0.09 Tasks: 135 total, 2 running, 133 sleeping, 0 stopped, 0 zombie Cpu(s): 0.1%us, 0.2%sy, 0.0%ni, 99.2%id, 0.1%wa, 0.0%hi, 0.1%si, 0.3%st Mem: 524508k total, 517132k used, 7376k free, 9124k buffers Swap: 1048568k total, 352k used, 1048216k free, 334720k cached Tomcat top info: top - 23:47:12 up 210 days, 3:07, 1 user, load average: 0.02, 0.04, 0.00 Tasks: 63 total, 1 running, 62 sleeping, 0 stopped, 0 zombie Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 99.8%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 2097372k total, 2080888k used, 16484k free, 21464k buffers Swap: 4194296k total, 380k used, 4193916k free, 1520912k cached Catalina.out does not have any error messages in it. According to Apache's server status, it seems to be maxing out at 143 requests/sec. I believe the servers can handle substantially more load than they are, so any hints about low default limits or other reasons why this setup would be maxing out would be greatly appreciated.

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• apache2 how to trace caller of SIGTERM

  - by art vanderlay

  I have a dex x64 on a virtualbox win7pro host. My apache2 will stop responding after a page request or other activity such as upload via ftp. The php.cgi becomes non responsive and a restart is required any help tracking down the culprit sending the SIGTERM would be much appreciated. thx Art my apache2.conf has <IfModule mpm_prefork_module> ServerLimit 1024 StartServers 10 MinSpareServers 10 MaxSpareServers 20 MaxClients 1024 MaxRequestsPerChild 0 </IfModule> ` From the apache2 log I have [Wed Jun 20 05:07:01 2012] [notice] caught SIGTERM, shutting down [Wed Jun 20 05:07:03 2012] [notice] FastCGI: process manager initialized (pid 4369) [Wed Jun 20 05:07:03 2012] [notice] Apache/2.2.16 (Debian) mod_fastcgi/2.4.6 PHP/5.3.3-7+squeeze13 with Suhosin-Patch mod_perl/2.0.4 Perl/v5.10.1 configured -- resuming normal operations and from the accounting output with lastcomm php.cgi www-data __ 0.13 secs Wed Jun 20 04:49 lastcomm root pts/2 0.10 secs Wed Jun 20 04:49 php.cgi www-data __ 0.18 secs Wed Jun 20 04:49 php.cgi www-data __ 0.18 secs Wed Jun 20 04:47 apache2 root pts/1 0.02 secs Wed Jun 20 04:46 tput root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 S root pts/1 0.77 secs Wed Jun 20 04:46 rm root pts/1 0.01 secs Wed Jun 20 04:46 install root pts/1 0.01 secs Wed Jun 20 04:46 mkdir root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 sleep root pts/1 0.00 secs Wed Jun 20 04:46 apache2 SF root __ 0.54 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.14 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.06 secs Wed Jun 20 04:36 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.11 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.04 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.06 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.08 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.03 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.01 secs Wed Jun 20 04:34 grep root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.02 secs Wed Jun 20 04:46 apache2 root pts/1 0.24 secs Wed Jun 20 04:46 apache2 SF www-data __ 0.00 secs Wed Jun 20 04:34 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 root pts/1 0.22 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.01 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 grep root pts/1 0.00 secs Wed Jun 20 04:46 tr root pts/1 0.00 secs Wed Jun 20 04:46 pidof S root pts/1 0.11 secs Wed Jun 20 04:46 cat root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 grep root pts/1 0.00 secs Wed Jun 20 04:46 tr root pts/1 0.00 secs Wed Jun 20 04:46 pidof S root pts/1 0.05 secs Wed Jun 20 04:46 cat root pts/1 0.01 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:46 apache2 root pts/1 0.34 secs Wed Jun 20 04:46 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 apache2 F root pts/1 0.00 secs Wed Jun 20 04:46 smbd SF root __ 0.25 secs Wed Jun 20 04:46 php.cgi www-data __ 0.14 secs Wed Jun 20 04:45 php.cgi www-data __ 0.19 secs Wed Jun 20 04:42 cron SF root __ 0.02 secs Wed Jun 20 04:39 sh S root __ 0.00 secs Wed Jun 20 04:39 find root __ 0.00 secs Wed Jun 20 04:39 maxlifetime root __ 0.02 secs Wed Jun 20 04:39 php5 root __ 0.13 secs Wed Jun 20 04:39 which root __ 0.00 secs Wed Jun 20 04:39 exim4 S root __ 0.01 secs Wed Jun 20 04:37 php.cgi www-data __ 0.04 secs Wed Jun 20 04:36 php.cgi www-data __ 0.12 secs Wed Jun 20 04:35 php.cgi www-data __ 0.11 secs Wed Jun 20 04:35 php.cgi www-data __ 0.14 secs Wed Jun 20 04:34 lastcomm root pts/2 0.09 secs Wed Jun 20 04:34 apache2 root pts/1 0.02 secs Wed Jun 20 04:34 tput root pts/1 0.00 secs Wed Jun 20 04:34 apache2 F root pts/1 0.00 secs Wed Jun 20 04:34 apache2ctl root pts/1 0.00 secs Wed Jun 20 04:34 apache2 S root pts/1 0.54 secs Wed Jun 20 04:34 rm root pts/1 0.00 secs Wed Jun 20 04:34 install root pts/1 0.00 secs Wed Jun 20 04:34 mkdir root pts/1 0.00 secs Wed Jun 20 04:34 apache2ctl F root pts/1 0.00 secs Wed Jun 20 04:34 sleep root pts/1 0.00 secs Wed Jun 20 04:34 apache2 SF root __ 0.80 secs Wed Jun 20 03:58 sleep root pts/1 0.00 secs Wed Jun 20 04:34 apache2 SF www-data __ 0.26 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.12 secs Wed Jun 20 03:59 apache2 SF www-data __ 0.13 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.13 secs Wed Jun 20 03:59 apache2 SF www-data __ 0.15 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.18 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.07 secs Wed Jun 20 04:21 apache2 SF www-data __ 0.18 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.17 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.30 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.09 secs Wed Jun 20 03:58 apache2 SF www-data __ 0.02 secs Wed Jun 20 04:13

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• PHP pages working slow from time to time

  - by user1038179

  I have VPS with limit of 2GB of ram and 8 CPU cores. I have 5 sites on that VPS (one of them is just for testing, no visitors exept me). All 5 sites are image galleries, like wallpaper sites. Last week I noticed problem on one site (main domain, used for name servers, and also with most traffic, visitors). That site has two image galleries, one is old static html gallery made few years ago and another, main, is powered by ZENPhoto CMS. Also I have that same gallery CMS on another two sites on that same VPS (on one running site and on one just for testing site). On other two sites I have diferent PHP driven gallery. Problem is that after some time (it vary from 10 minutes to few hours after apache restart), loading of pages on main site becomes very slow, or I get 503 Service Temporarily Unavailable error. So pages becomes unavailable. But just that part with new CMS gallery, old part of site with static html pages are working fast and just fine. Also other two sites with same CMS gallery and other two with different PHP driven gallery are working fine and fast at the same time. I thought it must be something with CMS on that main site, because other sites are working nice. Then I tryed to open contact and guest book pages on that main site which are outside of that CMS but also PHP pages, and they do not load too, but that same contact php scipts are working on other sites at the same time. So, when site starts to hangs, ONLY PHP generated content is not working, like I said other static pages are working. And, ONLY on that one main site I have problems. Then I need to restart Apache, after restart everything is vorking nice and fast, for some time, than again, just PHP pages on main site are becomming slower. If I do not restart apache that slowness take some time (several minutes, hours, depending ot traffic) and during that time PHP diven content is loading very slow or unavailable on that site. After sime time, on moments everything start to work and is fast again for some time, and again. In hours with more traffic PHP content is loading slowly or it is unavailable, in hours with less traffic it is sometimes fast and sometimes little bit slower than usually. And ones again, only on that main site, and only PHP driven pages, static pages are working fast even in most traffic hours also other sites with even same CMS are working fast. Currently I have about 7000 unique visitors on that site but site worked nice even with 11500 visitors per day. And about 17000 in total visitors on VPS, all sites ( about 3 pages per unique visitor). When site start to slow down sometimes in apache status I can see something like this: mod_fcgid status: Total FastCGI processes: 37 Process: php5 (/usr/local/cpanel/cgi-sys/php5)Pid Active Idle Accesses State 11300 39 28 7 Working 11274 47 28 7 Working 11296 40 29 3 Working 11283 45 30 3 Working 11304 36 31 1 Working 11282 46 32 3 Working 11292 42 33 1 Working 11289 44 34 1 Working 11305 35 35 0 Working 11273 48 36 2 Working 11280 47 39 1 Working 10125 133 40 12 Exiting(communication error) 11294 41 41 1 Exiting(communication error) 11277 47 42 2 Exiting(communication error) 11291 43 43 1 Exiting(communication error) 10187 108 43 10 Exiting(communication error) 10209 95 44 7 Exiting(communication error) 10171 113 44 5 Exiting(communication error) 11275 47 47 1 Exiting(communication error) 10144 125 48 8 Exiting(communication error) 10086 149 48 20 Exiting(communication error) 10212 94 49 5 Exiting(communication error) 10158 118 49 5 Exiting(communication error) 10169 114 50 4 Exiting(communication error) 10105 141 50 16 Exiting(communication error) 10094 146 50 15 Exiting(communication error) 10115 139 51 17 Exiting(communication error) 10213 93 51 9 Exiting(communication error) 10197 103 51 7 Exiting(communication error) Process: php5 (/usr/local/cpanel/cgi-sys/php5)Pid Active Idle Accesses State 7983 1079 2 149 Ready 7979 1079 11 151 Ready Process: php5 (/usr/local/cpanel/cgi-sys/php5)Pid Active Idle Accesses State 7990 1066 0 57 Ready 8001 1031 64 35 Ready 7999 1032 94 29 Ready 8000 1031 91 36 Ready 8002 1029 34 52 Ready Process: php5 (/usr/local/cpanel/cgi-sys/php5)Pid Active Idle Accesses State 7991 1064 29 115 Ready When it is working nicly there is no lines with "Exiting(communication error)" Active and Idle are time active and time since last request, in seconds. Here are system info. Sysem info: Total processors: 8 Processor #1 Vendor GenuineIntel Name Intel(R) Xeon(R) CPU E5440 @ 2.83GHz Speed 88.320 MHz Cache 6144 KB All other seven are the same. System Information Linux vps.nnnnnnnnnnnnnnnnn.nnn 2.6.18-028stab099.3 #1 SMP Wed Mar 7 15:20:22 MSK 2012 x86_64 x86_64 x86_64 GNU/Linux Current Memory Usage total used free shared buffers cached Mem: 8388608 882164 7506444 0 0 0 -/+ buffers/cache: 882164 7506444 Swap: 0 0 0 Total: 8388608 882164 7506444 Current Disk Usage Filesystem Size Used Avail Use% Mounted on /dev/vzfs 100G 34G 67G 34% / none System Details: Running on: Apache/2.2.22 System info: (Unix) mod_ssl/2.2.22 OpenSSL/0.9.8e-fips-rhel5 DAV/2 mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 mod_fcgid/2.3.6 Powered by: PHP/5.3.10 Current Configuration Default PHP Version (.php files) 5 PHP 5 Handler fcgi PHP 4 Handler suphp Apache suEXEC on Apache Ruid2 off PHP 4 Handler suphp Apache suEXEC on Apache Configuration The following settings have been saved: fileetag: All keepalive: On keepalivetimeout: 3 maxclients: 150 maxkeepaliverequests: 10 maxrequestsperchild: 10000 maxspareservers: 10 minspareservers: 5 root_options: ExecCGI, FollowSymLinks, Includes, IncludesNOEXEC, Indexes, MultiViews, SymLinksIfOwnerMatch serverlimit: 256 serversignature: Off servertokens: Full sslciphersuite: ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:-LOW:-SSLv2:-EXP:!kEDH startservers: 5 timeout: 30 I hope, I explained my problem nicely. Any help would be nice.

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• Varnish 3.0.2 to Apache2 sometimes return error 503

  - by Ronnie Jespersen

  Hey guys I hope you can help me out here. I have an Ngingx parsing http and https to a varnish cache(3.0.2). From the varnish it is sent to apache2. Now I have for some time been tracking some strange 503 errors. But I cant seem to find the silver bullet. Currently I am logging the 503 errors through varnish this way: sudo varnishlog -c -m TxStatus:503 >> /home/rj/varnishlog503.log and then referring to the apache access log to see if any 503 requests have been handled. Today I had a health check from the firewall that failed: 20 SessionOpen c 127.0.0.1 34319 :8081 20 ReqStart c 127.0.0.1 34319 607335635 20 RxRequest c HEAD 20 RxURL c /health-check 20 RxProtocol c HTTP/1.0 20 RxHeader c X-Real-IP: 192.168.3.254 20 RxHeader c Host: 192.168.3.189 20 RxHeader c X-Forwarded-For: 192.168.3.254 20 RxHeader c Connection: close 20 RxHeader c User-Agent: Astaro Service Monitor 0.9 20 RxHeader c Accept: */* 20 VCL_call c recv lookup 20 VCL_call c hash 20 Hash c /health-check 20 VCL_return c hash 20 VCL_call c miss fetch 20 Backend c 33 aurum aurum 20 FetchError c http first read error: -1 11 (No error recorded) 20 VCL_call c error deliver 20 VCL_call c deliver deliver 20 TxProtocol c HTTP/1.1 20 TxStatus c 503 20 TxResponse c Service Unavailable 20 TxHeader c Server: Varnish 20 TxHeader c Content-Type: text/html; charset=utf-8 20 TxHeader c Retry-After: 5 20 TxHeader c Content-Length: 879 20 TxHeader c Accept-Ranges: bytes 20 TxHeader c Date: Wed, 06 Jun 2012 12:35:12 GMT 20 TxHeader c X-Varnish: 607335635 20 TxHeader c Age: 60 20 TxHeader c Via: 1.1 varnish 20 TxHeader c Connection: close 20 Length c 879 20 ReqEnd c 607335635 1338986052.649786949 1338986112.648169994 0.000160217 59.997980356 0.000402689 Now the backend server (apache) does not have any 503 error in the access log at this point. So I am confused. Is this varnish throwing a 503 because it thinks apache is to slow? There is a lot traffic coming through at this point so I know the server is up and running. I do have other 503 error codes with posts and gets so there is really no pattern. It seems to be at random times and random requests. Even in the morning when the server dosen't seem to be doing anything. I do see another pattern in the log: 4 VCL_call c recv pass 4 VCL_call c hash 4 Hash c /?id=412 4 VCL_return c hash 4 VCL_call c pass pass 4 FetchError c no backend connection 4 VCL_call c error deliver 4 VCL_call c deliver deliver Here fetcherror says "no backend connection". A summery of the FetchErrors in todays log: 16 FetchError c http first read error: -1 11 (No error recorded) 5 FetchError c http first read error: -1 11 (No error recorded) 4 FetchError c http first read error: -1 11 (No error recorded) 19 FetchError c http first read error: -1 11 (No error recorded) 5 FetchError c http first read error: -1 11 (No error recorded) 23 FetchError c http first read error: -1 11 (No error recorded) 24 FetchError c http first read error: -1 11 (No error recorded) 16 FetchError c http first read error: -1 11 (No error recorded) 6 FetchError c http first read error: -1 11 (No error recorded) 4 FetchError c http first read error: -1 11 (No error recorded) 5 FetchError c http first read error: -1 11 (No error recorded) 4 FetchError c http first read error: -1 11 (No error recorded) 4 FetchError c http first read error: -1 11 (No error recorded) 22 FetchError c http first read error: -1 11 (No error recorded) 6 FetchError c http first read error: -1 11 (No error recorded) 21 FetchError c http first read error: -1 11 (No error recorded) 26 FetchError c no backend connection 4 FetchError c no backend connection 20 FetchError c http first read error: -1 11 (No error recorded) 39 FetchError c http first read error: -1 11 (No error recorded) I haven't changed the default timeout values for varnish. This is my configuration for one of the backend servers. backend xenon { .host = "192.168.3.187"; .port = "80"; .probe = { .url = "/health-check/"; .interval = 3s; .window = 5; .threshold = 2; } } I'm running prefork module on apache2 with this configuration <IfModule mpm_prefork_module> StartServers 1 MinSpareServers 2 MaxSpareServers 5 MaxClients 200 MaxRequestsPerChild 75 </IfModule> and only PHP files is sent to the server. Every other static file is handled by Nginx. Any ideas? ------- EDIT -------------- Some more debuging information I have run a varnishadm debug.health Backend radon is Healthy Current states good: 5 threshold: 2 window: 5 Average responsetime of good probes: 0.002560 Oldest Newest ================================================================ 4444444444444444444444444444444444444444444444444444444444444444 Good IPv4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Good Xmit RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR Good Recv HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Happy Backend xenon is Healthy Current states good: 5 threshold: 2 window: 5 Average responsetime of good probes: 0.002760 Oldest Newest ================================================================ 4444444444444444444444444444444444444444444444444444444444444444 Good IPv4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Good Xmit RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR Good Recv HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Happy Backend iridium is Healthy Current states good: 5 threshold: 2 window: 5 Average responsetime of good probes: 0.000849 Oldest Newest ================================================================ 4444444444444444444444444444444444444444444444444444444444444444 Good IPv4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Good Xmit RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR Good Recv HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Happy Backend aurum is Healthy Current states good: 5 threshold: 2 window: 5 Average responsetime of good probes: 0.002100 Oldest Newest ================================================================ 4444444444444444444444444444444444444444444444444444444444444444 Good IPv4 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Good Xmit RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR Good Recv HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH Happy And I have been monitoring varnishstat from the two load balancers 3224774 3.99 2.61 backend_conn - Backend conn. success 27 0.00 0.00 backend_unhealthy - Backend conn. not attempted 63 0.00 0.00 backend_fail - Backend conn. failures 358798 0.00 0.29 backend_reuse - Backend conn. reuses 21035 0.00 0.02 backend_toolate - Backend conn. was closed 379834 0.00 0.31 backend_recycle - Backend conn. recycles 26 0.00 0.00 backend_retry - Backend conn. retry 3217751 5.99 2.61 backend_conn - Backend conn. success 32 0.00 0.00 backend_fail - Backend conn. failures 364185 0.00 0.30 backend_reuse - Backend conn. reuses 27077 0.00 0.02 backend_toolate - Backend conn. was closed 391263 0.00 0.32 backend_recycle - Backend conn. recycles 36 0.00 0.00 backend_retry - Backend conn. retry Notice that none of them have reported backend_fail. /Ronnie

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• Openvpn plugin openvpn-auth-ldap does not bind to Active Directory

  - by Selivanov Pavel

  I'm trying to configure OpenVPN with openvpn-auth-ldap plugin to authorize users via Active Directory LDAP. When I use the same server config without plugin option, and add client config with generated client key and cert, connection is successful, so problem is in the plugin. server.conf: plugin /usr/lib/openvpn/openvpn-auth-ldap.so "/etc/openvpn-test/openvpn-auth-ldap.conf" port 1194 proto tcp dev tun keepalive 10 60 topology subnet server 10.0.2.0 255.255.255.0 tls-server ca ca.crt dh dh1024.pem cert server.crt key server.key #crl-verify crl.pem persist-key persist-tun user nobody group nogroup verb 3 mute 20 openvpn-auth-ldap.conf: <LDAP> URL ldap://dc1.domain:389 TLSEnable no BindDN cn=bot_auth,cn=Users,dc=domain Password bot_auth Timeout 15 FollowReferrals yes </LDAP> <Authorization> BaseDN "cn=Users,dc=domain" SearchFilter "(sAMAccountName=%u)" RequireGroup false # <Group> # BaseDN "ou=groups,dc=mycompany,dc=local" # SearchFilter "(|(cn=developers)(cn=artists))" # MemberAttribute uniqueMember # </Group> </Authorization> Top-level domain in AD is used by historical reasons. Analogue configuration is working for Apache 2.2 in mod-authzn-ldap. User and password are correct. client.conf: remote server_name port 1194 proto tcp client pull remote-cert-tls server dev tun resolv-retry infinite nobind ca ca.crt ; with keys - works fine #cert test.crt #key test.key ; without keys - by password auth-user-pass persist-tun verb 3 mute 20 In server log there is string PLUGIN_INIT: POST /usr/lib/openvpn/openvpn-auth-ldap.so '[/usr/lib/openvpn/openvpn-auth-ldap.so] [/etc/openvpn-test/openvpn-auth-ldap.conf]' which indicates, that plugin failed. I can telnet to dc1.domain:389, so this is not network/firewall problem. Later server says TLS Error: TLS object -> incoming plaintext read error TLS handshake failed - without plugin it tryes to do usal key authentification. server log: Tue Nov 22 03:06:20 2011 OpenVPN 2.1.3 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Oct 21 2010 Tue Nov 22 03:06:20 2011 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Tue Nov 22 03:06:20 2011 PLUGIN_INIT: POST /usr/lib/openvpn/openvpn-auth-ldap.so '[/usr/lib/openvpn/openvpn-auth-ldap.so] [/etc/openvpn-test/openvpn-auth-ldap.conf]' intercepted=PLUGIN_AUTH_USER_PASS_VERIFY|PLUGIN_CLIENT_CONNECT|PLUGIN_CLIENT_DISCONNECT Tue Nov 22 03:06:20 2011 Diffie-Hellman initialized with 1024 bit key Tue Nov 22 03:06:20 2011 /usr/bin/openssl-vulnkey -q -b 1024 -m <modulus omitted> Tue Nov 22 03:06:20 2011 Control Channel Authentication: using 'ta.key' as a OpenVPN static key file Tue Nov 22 03:06:20 2011 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:20 2011 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:20 2011 TLS-Auth MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:06:20 2011 Socket Buffers: R=[87380->131072] S=[16384->131072] Tue Nov 22 03:06:20 2011 TUN/TAP device tun1 opened Tue Nov 22 03:06:20 2011 TUN/TAP TX queue length set to 100 Tue Nov 22 03:06:20 2011 /sbin/ifconfig tun1 10.0.2.1 netmask 255.255.255.0 mtu 1500 broadcast 10.0.2.255 Tue Nov 22 03:06:20 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:06:20 2011 GID set to nogroup Tue Nov 22 03:06:20 2011 UID set to nobody Tue Nov 22 03:06:20 2011 Listening for incoming TCP connection on [undef] Tue Nov 22 03:06:20 2011 TCPv4_SERVER link local (bound): [undef] Tue Nov 22 03:06:20 2011 TCPv4_SERVER link remote: [undef] Tue Nov 22 03:06:20 2011 MULTI: multi_init called, r=256 v=256 Tue Nov 22 03:06:20 2011 IFCONFIG POOL: base=10.0.2.2 size=252 Tue Nov 22 03:06:20 2011 MULTI: TCP INIT maxclients=1024 maxevents=1028 Tue Nov 22 03:06:20 2011 Initialization Sequence Completed Tue Nov 22 03:07:10 2011 MULTI: multi_create_instance called Tue Nov 22 03:07:10 2011 Re-using SSL/TLS context Tue Nov 22 03:07:10 2011 Control Channel MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:07:10 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:07:10 2011 Local Options hash (VER=V4): 'c413e92e' Tue Nov 22 03:07:10 2011 Expected Remote Options hash (VER=V4): 'd8421bb0' Tue Nov 22 03:07:10 2011 TCP connection established with [AF_INET]10.0.0.9:47808 Tue Nov 22 03:07:10 2011 TCPv4_SERVER link local: [undef] Tue Nov 22 03:07:10 2011 TCPv4_SERVER link remote: [AF_INET]10.0.0.9:47808 Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS: Initial packet from [AF_INET]10.0.0.9:47808, sid=a2cd4052 84b47108 Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS_ERROR: BIO read tls_read_plaintext error: error:140890C7:SSL routines:SSL3_GET_CLIENT_CERTIFICATE:peer did not return a certificate Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS Error: TLS object -> incoming plaintext read error Tue Nov 22 03:07:11 2011 10.0.0.9:47808 TLS Error: TLS handshake failed Tue Nov 22 03:07:11 2011 10.0.0.9:47808 Fatal TLS error (check_tls_errors_co), restarting Tue Nov 22 03:07:11 2011 10.0.0.9:47808 SIGUSR1[soft,tls-error] received, client-instance restarting Tue Nov 22 03:07:11 2011 TCP/UDP: Closing socket client log: Tue Nov 22 03:06:18 2011 OpenVPN 2.1.3 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Oct 22 2010 Enter Auth Username:user Enter Auth Password: Tue Nov 22 03:06:25 2011 NOTE: OpenVPN 2.1 requires '--script-security 2' or higher to call user-defined scripts or executables Tue Nov 22 03:06:25 2011 Control Channel Authentication: using 'ta.key' as a OpenVPN static key file Tue Nov 22 03:06:25 2011 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:25 2011 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication Tue Nov 22 03:06:25 2011 Control Channel MTU parms [ L:1543 D:168 EF:68 EB:0 ET:0 EL:0 ] Tue Nov 22 03:06:25 2011 Socket Buffers: R=[87380->131072] S=[16384->131072] Tue Nov 22 03:06:25 2011 Data Channel MTU parms [ L:1543 D:1450 EF:43 EB:4 ET:0 EL:0 ] Tue Nov 22 03:06:25 2011 Local Options hash (VER=V4): 'd8421bb0' Tue Nov 22 03:06:25 2011 Expected Remote Options hash (VER=V4): 'c413e92e' Tue Nov 22 03:06:25 2011 Attempting to establish TCP connection with [AF_INET]10.0.0.2:1194 [nonblock] Tue Nov 22 03:06:26 2011 TCP connection established with [AF_INET]10.0.0.2:1194 Tue Nov 22 03:06:26 2011 TCPv4_CLIENT link local: [undef] Tue Nov 22 03:06:26 2011 TCPv4_CLIENT link remote: [AF_INET]10.0.0.2:1194 Tue Nov 22 03:06:26 2011 TLS: Initial packet from [AF_INET]10.0.0.2:1194, sid=7a3c2a0f bd35bca7 Tue Nov 22 03:06:26 2011 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this Tue Nov 22 03:06:26 2011 VERIFY OK: depth=1, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=Fort-Funston_CA/[email protected] Tue Nov 22 03:06:26 2011 Validating certificate key usage Tue Nov 22 03:06:26 2011 ++ Certificate has key usage 00a0, expects 00a0 Tue Nov 22 03:06:26 2011 VERIFY KU OK Tue Nov 22 03:06:26 2011 Validating certificate extended key usage Tue Nov 22 03:06:26 2011 ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication Tue Nov 22 03:06:26 2011 VERIFY EKU OK Tue Nov 22 03:06:26 2011 VERIFY OK: depth=0, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=server/[email protected] Tue Nov 22 03:06:26 2011 Connection reset, restarting [0] Tue Nov 22 03:06:26 2011 TCP/UDP: Closing socket Tue Nov 22 03:06:26 2011 SIGUSR1[soft,connection-reset] received, process restarting Tue Nov 22 03:06:26 2011 Restart pause, 5 second(s) ^CTue Nov 22 03:06:27 2011 SIGINT[hard,init_instance] received, process exiting Does anybody know how to get openvpn-auth-ldap wirking?

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• ProFTPd server on Ubuntu getting access denied message when successfully authenticated?

  - by exxoid

  I have a Ubuntu box with a ProFTPD 1.3.4a Server, when I try to log in via my FTP Client I cannot do anything as it does not allow me to list directories; I have tried logging in as root and as a regular user and tried accessing different paths within the FTP Server. The error I get in my FTP Client is: Status: Retrieving directory listing... Command: CDUP Response: 250 CDUP command successful Command: PWD Response: 257 "/var" is the current directory Command: PASV Response: 227 Entering Passive Mode (172,16,4,22,237,205). Command: MLSD Response: 550 Access is denied. Error: Failed to retrieve directory listing Any idea? Here is the config of my proftpd: # # /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file. # To really apply changes, reload proftpd after modifications, if # it runs in daemon mode. It is not required in inetd/xinetd mode. # # Includes DSO modules Include /etc/proftpd/modules.conf # Set off to disable IPv6 support which is annoying on IPv4 only boxes. UseIPv6 off # If set on you can experience a longer connection delay in many cases. IdentLookups off ServerName "Drupal Intranet" ServerType standalone ServerIdent on "FTP Server ready" DeferWelcome on # Set the user and group that the server runs as User nobody Group nogroup MultilineRFC2228 on DefaultServer on ShowSymlinks on TimeoutNoTransfer 600 TimeoutStalled 600 TimeoutIdle 1200 DisplayLogin welcome.msg DisplayChdir .message true ListOptions "-l" DenyFilter \*.*/ # Use this to jail all users in their homes # DefaultRoot ~ # Users require a valid shell listed in /etc/shells to login. # Use this directive to release that constrain. # RequireValidShell off # Port 21 is the standard FTP port. Port 21 # In some cases you have to specify passive ports range to by-pass # firewall limitations. Ephemeral ports can be used for that, but # feel free to use a more narrow range. # PassivePorts 49152 65534 # If your host was NATted, this option is useful in order to # allow passive tranfers to work. You have to use your public # address and opening the passive ports used on your firewall as well. # MasqueradeAddress 1.2.3.4 # This is useful for masquerading address with dynamic IPs: # refresh any configured MasqueradeAddress directives every 8 hours <IfModule mod_dynmasq.c> # DynMasqRefresh 28800 </IfModule> # To prevent DoS attacks, set the maximum number of child processes # to 30. If you need to allow more than 30 concurrent connections # at once, simply increase this value. Note that this ONLY works # in standalone mode, in inetd mode you should use an inetd server # that allows you to limit maximum number of processes per service # (such as xinetd) MaxInstances 30 # Set the user and group that the server normally runs at. # Umask 022 is a good standard umask to prevent new files and dirs # (second parm) from being group and world writable. Umask 022 022 # Normally, we want files to be overwriteable. AllowOverwrite on # Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords: # PersistentPasswd off # This is required to use both PAM-based authentication and local passwords AuthPAMConfig proftpd AuthOrder mod_auth_pam.c* mod_auth_unix.c # Be warned: use of this directive impacts CPU average load! # Uncomment this if you like to see progress and transfer rate with ftpwho # in downloads. That is not needed for uploads rates. # UseSendFile off TransferLog /var/log/proftpd/xferlog SystemLog /var/log/proftpd/proftpd.log # Logging onto /var/log/lastlog is enabled but set to off by default #UseLastlog on # In order to keep log file dates consistent after chroot, use timezone info # from /etc/localtime. If this is not set, and proftpd is configured to # chroot (e.g. DefaultRoot or <Anonymous>), it will use the non-daylight # savings timezone regardless of whether DST is in effect. #SetEnv TZ :/etc/localtime <IfModule mod_quotatab.c> QuotaEngine off </IfModule> <IfModule mod_ratio.c> Ratios off </IfModule> # Delay engine reduces impact of the so-called Timing Attack described in # http://www.securityfocus.com/bid/11430/discuss # It is on by default. <IfModule mod_delay.c> DelayEngine on </IfModule> <IfModule mod_ctrls.c> ControlsEngine off ControlsMaxClients 2 ControlsLog /var/log/proftpd/controls.log ControlsInterval 5 ControlsSocket /var/run/proftpd/proftpd.sock </IfModule> <IfModule mod_ctrls_admin.c> AdminControlsEngine off </IfModule> # # Alternative authentication frameworks # #Include /etc/proftpd/ldap.conf #Include /etc/proftpd/sql.conf # # This is used for FTPS connections # #Include /etc/proftpd/tls.conf # # Useful to keep VirtualHost/VirtualRoot directives separated # #Include /etc/proftpd/virtuals.con # A basic anonymous configuration, no upload directories. # <Anonymous ~ftp> # User ftp # Group nogroup # # We want clients to be able to login with "anonymous" as well as "ftp" # UserAlias anonymous ftp # # Cosmetic changes, all files belongs to ftp user # DirFakeUser on ftp # DirFakeGroup on ftp # # RequireValidShell off # # # Limit the maximum number of anonymous logins # MaxClients 10 # # # We want 'welcome.msg' displayed at login, and '.message' displayed # # in each newly chdired directory. # DisplayLogin welcome.msg # DisplayChdir .message # # # Limit WRITE everywhere in the anonymous chroot # <Directory *> # <Limit WRITE> # DenyAll # </Limit> # </Directory> # # # Uncomment this if you're brave. # # <Directory incoming> # # # Umask 022 is a good standard umask to prevent new files and dirs # # # (second parm) from being group and world writable. # # Umask 022 022 # # <Limit READ WRITE> # # DenyAll # # </Limit> # # <Limit STOR> # # AllowAll # # </Limit> # # </Directory> # # </Anonymous> # Include other custom configuration files Include /etc/proftpd/conf.d/ UseReverseDNS off <Global> RootLogin on UseFtpUsers on ServerIdent on DefaultChdir /var/www DeleteAbortedStores on LoginPasswordPrompt on AccessGrantMsg "You have been authenticated successfully." </Global> Any idea what could be wrong? Thanks for your help!

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• MPM Prefork Apache Uses Absurd Amount of Memory

  - by Charlie JM

  Help! My apache processes are all using 115MB of memory on startup. Relevant information: Linux version (uname -a) Linux 2.6.31-14-generic-pae #48-Ubuntu SMP Fri Oct 16 15:22:42 UTC 2009 i686 GNU/Linux Apache version (/usr/sbin/apache2 -v) Server version: Apache/2.2.8 (Ubuntu) Server built: Mar 9 2010 20:45:36 Top display (top -u www-data) PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23377 www-data 20 0 115m 94m 3908 S 28 1.6 0:04.59 apache2 23375 www-data 20 0 119m 99m 5892 S 9 1.6 0:05.04 apache2 23324 www-data 20 0 116m 96m 5144 S 2 1.6 0:04.73 apache2 23283 www-data 20 0 115m 95m 4480 S 1 1.6 0:04.89 apache2 23259 www-data 20 0 116m 96m 5380 S 0 1.6 0:05.55 apache2 23370 www-data 20 0 115m 94m 4396 S 0 1.6 0:04.75 apache2 23229 www-data 20 0 116m 96m 6096 S 0 1.6 0:05.43 apache2 ... and so on ... Memory map (pmap $(pidof apache2)) (actually, just one apache2 process) Most of the memory is [anon], see line 5 23324: /usr/sbin/apache2 -k start 08048000 332K r-x-- /usr/sbin/apache2 0809b000 8K rw--- /usr/sbin/apache2 0809d000 12K rw--- [ anon ] 093a0000 92812K rw--- [ anon ] b5b6c000 4K rw--- [ anon ] b5b6d000 512K rw-s- [ shmid=0x13528003 ] b5fa8000 16K r-x-- /lib/tls/i686/cmov/libnss_dns-2.7.so b5fac000 8K rw--- /lib/tls/i686/cmov/libnss_dns-2.7.so b5fae000 120K r-x-- /usr/lib/php5/20060613+lfs/suhosin.so b5fcc000 16K rw--- /usr/lib/php5/20060613+lfs/suhosin.so b5fd0000 4K rw--- [ anon ] b5fd1000 76K r-x-- /usr/lib/php5/20060613+lfs/pdo.so b5fe4000 8K rw--- /usr/lib/php5/20060613+lfs/pdo.so b5fe6000 92K r-x-- /usr/lib/php5/20060613+lfs/mysqli.so b5ffd000 8K rw--- /usr/lib/php5/20060613+lfs/mysqli.so b5fff000 1648K r-x-- /usr/lib/libmysqlclient.so.15.0.0 b619b000 268K rw--- /usr/lib/libmysqlclient.so.15.0.0 b61de000 4K rw--- [ anon ] b61f0000 92K r-x-- /usr/lib/libxcb.so.1.0.0 b6207000 4K rw--- /usr/lib/libxcb.so.1.0.0 b6208000 164K r-x-- /usr/lib/libfontconfig.so.1.3.0 b6231000 4K rw--- /usr/lib/libfontconfig.so.1.3.0 b6232000 124K r-x-- /usr/lib/libjpeg.so.62.0.0 b6251000 4K rw--- /usr/lib/libjpeg.so.62.0.0 b6252000 136K r-x-- /usr/lib/libpng12.so.0.15.0 b6274000 4K rw--- /usr/lib/libpng12.so.0.15.0 b6275000 60K r-x-- /usr/lib/libXpm.so.4.11.0 b6284000 4K rw--- /usr/lib/libXpm.so.4.11.0 b6285000 912K r-x-- /usr/lib/libX11.so.6.2.0 b6369000 12K rw--- /usr/lib/libX11.so.6.2.0 b636c000 424K r-x-- /usr/lib/libfreetype.so.6.3.16 b63d6000 12K rw--- /usr/lib/libfreetype.so.6.3.16 b63d9000 236K r-x-- /usr/lib/libt1.so.5.1.1 b6414000 12K rw--- /usr/lib/libt1.so.5.1.1 b6417000 84K rw--- [ anon ] b642c000 116K r-x-- /usr/lib/libgd.so.2.0.0 b6449000 128K rw--- /usr/lib/libgd.so.2.0.0 b6469000 16K rw--- [ anon ] b646d000 88K r-x-- /usr/lib/php5/20060613+lfs/gd.so b6483000 16K rw--- /usr/lib/php5/20060613+lfs/gd.so b6487000 192K r-x-- /usr/lib/libidn.so.11.5.30 b64b7000 4K rw--- /usr/lib/libidn.so.11.5.30 b64b8000 232K r-x-- /usr/lib/libcurl.so.4.0.1 b64f2000 4K rw--- /usr/lib/libcurl.so.4.0.1 b64f8000 44K r-x-- /usr/lib/php5/20060613+lfs/mysql.so b6503000 4K rw--- /usr/lib/php5/20060613+lfs/mysql.so b6504000 268K r-x-- /usr/lib/libgmp.so.3.4.2 b6547000 4K rw--- /usr/lib/libgmp.so.3.4.2 b6548000 648K r-x-- /usr/lib/libclamav.so.5.0.4 b65ea000 44K rw--- /usr/lib/libclamav.so.5.0.4 b65f8000 52K r-x-- /usr/lib/php5/20060613+lfs/curl.so b6605000 4K rw--- /usr/lib/php5/20060613+lfs/curl.so b6606000 148K r-x-- /usr/lib/libmcrypt.so.4.4.7 b662b000 8K rw--- /usr/lib/libmcrypt.so.4.4.7 b662d000 28K rw--- [ anon ] b6634000 24K r-x-- /usr/lib/php5/20060613+lfs/pdo_mysql.so b663a000 4K rw--- /usr/lib/php5/20060613+lfs/pdo_mysql.so b663b000 16K r-x-- /usr/lib/libXdmcp.so.6.0.0 b663f000 4K rw--- /usr/lib/libXdmcp.so.6.0.0 b6640000 12K r-x-- /usr/lib/php5/20060613+lfs/clamav.so b6643000 4K rw--- /usr/lib/php5/20060613+lfs/clamav.so b6644000 1036K r-x-- /usr/lib/libc-client.so.2007.0 b6747000 28K rw--- /usr/lib/libc-client.so.2007.0 b674e000 4K rw--- [ anon ] b6750000 24K r-x-- /usr/lib/libltdl.so.3.1.6 b6756000 4K rw--- /usr/lib/libltdl.so.3.1.6 b6757000 32K r-x-- /usr/lib/php5/20060613+lfs/mcrypt.so b675f000 4K rw--- /usr/lib/php5/20060613+lfs/mcrypt.so b6760000 88K r-x-- /usr/lib/php5/20060613+lfs/imap.so b6776000 4K rw--- /usr/lib/php5/20060613+lfs/imap.so b6777000 104K r-x-- /usr/local/lib/libssh2.so b6791000 4K rw--- /usr/local/lib/libssh2.so b6792000 1324K r-x-- /usr/lib/ZendOptimizer.so b68dd000 68K rw--- /usr/lib/ZendOptimizer.so b68ee000 20K rw--- [ anon ] b68f3000 8K r-x-- /usr/lib/libXau.so.6.0.0 b68f5000 4K rw--- /usr/lib/libXau.so.6.0.0 b68f6000 52K r-x-- /usr/lib/php5/20060613+lfs/ssh2.so b6903000 4K rw--- /usr/lib/php5/20060613+lfs/ssh2.so b6904000 252K r---- /usr/lib/locale/en_US.utf8/LC_CTYPE b6974000 64K rw-s- /dev/zero (deleted) b6984000 36K r-x-- /lib/tls/i686/cmov/libnss_files-2.7.so b698d000 8K rw--- /lib/tls/i686/cmov/libnss_files-2.7.so b698f000 32K r-x-- /lib/tls/i686/cmov/libnss_nis-2.7.so b6997000 8K rw--- /lib/tls/i686/cmov/libnss_nis-2.7.so b6999000 28K r-x-- /lib/tls/i686/cmov/libnss_compat-2.7.so b69a0000 8K rw--- /lib/tls/i686/cmov/libnss_compat-2.7.so b69a2000 36K r-x-- /lib/libpam.so.0.81.6 b69ab000 4K rw--- /lib/libpam.so.0.81.6 b69ac000 28K r--s- /usr/lib/gconv/gconv-modules.cache b69b3000 8K r-x-- /usr/lib/apache2/modules/mod_userdir.so b69b5000 4K rw--- /usr/lib/apache2/modules/mod_userdir.so b69b6000 148K r-x-- /usr/lib/apache2/modules/mod_ssl.so b69db000 8K rw--- /usr/lib/apache2/modules/mod_ssl.so b69dd000 8K rw--- [ anon ] b69df000 8K r-x-- /usr/lib/apache2/modules/mod_setenvif.so b69e1000 4K rw--- /usr/lib/apache2/modules/mod_setenvif.so b69e2000 1128K r-x-- /usr/lib/libxml2.so.2.6.31 b6afc000 20K rw--- /usr/lib/libxml2.so.2.6.31 b6b01000 4K rw--- [ anon ] b6b02000 80K r-x-- /lib/tls/i686/cmov/libnsl-2.7.so b6b16000 8K rw--- /lib/tls/i686/cmov/libnsl-2.7.so b6b18000 8K rw--- [ anon ] b6b1a000 140K r-x-- /lib/tls/i686/cmov/libm-2.7.so b6b3d000 8K rw--- /lib/tls/i686/cmov/libm-2.7.so b6b3f000 60K r-x-- /lib/libbz2.so.1.0.4 b6b4e000 4K rw--- /lib/libbz2.so.1.0.4 b6b4f000 4K r-x-- /usr/lib/libxcb-xlib.so.0.0.0 b6b50000 4K rw--- /usr/lib/libxcb-xlib.so.0.0.0 b6b51000 56K r-x-- /usr/lib/apache2/modules/mod_rewrite.so b6b5f000 4K rw--- /usr/lib/apache2/modules/mod_rewrite.so b6b60000 5060K r-x-- /usr/lib/apache2/modules/libphp5.so b7051000 208K rw--- /usr/lib/apache2/modules/libphp5.so b7085000 20K rw--- [ anon ] b708a000 28K r-x-- /usr/lib/apache2/modules/mod_negotiation.so b7091000 4K rw--- /usr/lib/apache2/modules/mod_negotiation.so b7092000 12K r-x-- /usr/lib/apache2/modules/mod_mime.so b7095000 4K rw--- /usr/lib/apache2/modules/mod_mime.so b7096000 36K r-x-- /usr/lib/apache2/modules/mod_include.so b709f000 4K rw--- /usr/lib/apache2/modules/mod_include.so b70a0000 4K r-x-- /usr/lib/apache2/modules/mod_env.so b70a1000 4K rw--- /usr/lib/apache2/modules/mod_env.so b70a2000 4K r-x-- /usr/lib/apache2/modules/mod_dir.so b70a3000 4K rw--- /usr/lib/apache2/modules/mod_dir.so b70a4000 20K r-x-- /usr/lib/apache2/modules/mod_cgi.so b70a9000 4K rw--- /usr/lib/apache2/modules/mod_cgi.so b70aa000 28K r-x-- /usr/lib/apache2/modules/mod_autoindex.so b70b1000 4K rw--- /usr/lib/apache2/modules/mod_autoindex.so b70b2000 4K r-x-- /usr/lib/apache2/modules/mod_authz_user.so b70b3000 4K rw--- /usr/lib/apache2/modules/mod_authz_user.so b70b4000 8K r-x-- /usr/lib/apache2/modules/mod_authz_host.so b70b6000 4K rw--- /usr/lib/apache2/modules/mod_authz_host.so b70b7000 8K r-x-- /usr/lib/apache2/modules/mod_authz_groupfile.so b70b9000 4K rw--- /usr/lib/apache2/modules/mod_authz_groupfile.so b70ba000 8K rw--- [ anon ] b70bc000 12K r-x-- /lib/libgpg-error.so.0.3.0 b70bf000 4K rw--- /lib/libgpg-error.so.0.3.0 b70c0000 4K rw--- [ anon ] b70c1000 8K r-x-- /lib/libkeyutils-1.2.so b70c3000 4K rw--- /lib/libkeyutils-1.2.so b70c4000 28K r-x-- /usr/lib/libkrb5support.so.0.1 b70cb000 4K rw--- /usr/lib/libkrb5support.so.0.1 b70cc000 136K r-x-- /usr/lib/libk5crypto.so.3.1 b70ee000 4K rw--- /usr/lib/libk5crypto.so.3.1 b70ef000 300K r-x-- /lib/libgcrypt.so.11.2.3 b713a000 8K rw--- /lib/libgcrypt.so.11.2.3 b713c000 80K r-x-- /usr/lib/libz.so.1.2.3.3 b7150000 4K rw--- /usr/lib/libz.so.1.2.3.3 b7151000 4K rw--- [ anon ] b7152000 60K r-x-- /usr/lib/libtasn1.so.3.0.12 b7161000 4K rw--- /usr/lib/libtasn1.so.3.0.12 b7162000 160K r-x-- /usr/lib/libgssapi_krb5.so.2.2 b718a000 4K rw--- /usr/lib/libgssapi_krb5.so.2.2 b718b000 8K r-x-- /lib/libcom_err.so.2.1 b718d000 4K rw--- /lib/libcom_err.so.2.1 b718e000 556K r-x-- /usr/lib/libkrb5.so.3.3 b7219000 8K rw--- /usr/lib/libkrb5.so.3.3 b721b000 1192K r-x-- /usr/lib/i686/cmov/libcrypto.so.0.9.8 b7345000 84K rw--- /usr/lib/i686/cmov/libcrypto.so.0.9.8 b735a000 16K rw--- [ anon ] b735e000 248K r-x-- /usr/lib/i686/cmov/libssl.so.0.9.8 b739c000 16K rw--- /usr/lib/i686/cmov/libssl.so.0.9.8 b73a0000 452K r-x-- /usr/lib/libgnutls.so.13.9.1 b7411000 20K rw--- /usr/lib/libgnutls.so.13.9.1 b7416000 88K r-x-- /usr/lib/libsasl2.so.2.0.22 b742c000 4K rw--- /usr/lib/libsasl2.so.2.0.22 b742d000 60K r-x-- /lib/tls/i686/cmov/libresolv-2.7.so b743c000 8K rw--- /lib/tls/i686/cmov/libresolv-2.7.so b743e000 8K rw--- [ anon ] b7440000 8K r-x-- /lib/tls/i686/cmov/libdl-2.7.so b7442000 8K rw--- /lib/tls/i686/cmov/libdl-2.7.so b7444000 36K r-x-- /lib/tls/i686/cmov/libcrypt-2.7.so b744d000 8K rw--- /lib/tls/i686/cmov/libcrypt-2.7.so b744f000 160K rw--- [ anon ] b7477000 28K r-x-- /lib/tls/i686/cmov/librt-2.7.so b747e000 8K rw--- /lib/tls/i686/cmov/librt-2.7.so b7480000 12K r-x-- /lib/libuuid.so.1.2 b7483000 4K rw--- /lib/libuuid.so.1.2 b7484000 124K r-x-- /usr/lib/libexpat.so.1.5.2 b74a3000 8K rw--- /usr/lib/libexpat.so.1.5.2 b74a5000 396K r-x-- /usr/lib/libsqlite3.so.0.8.6 b7508000 8K rw--- /usr/lib/libsqlite3.so.0.8.6 b750a000 120K r-x-- /usr/lib/libpq.so.5.1 b7528000 4K rw--- /usr/lib/libpq.so.5.1 b7529000 1172K r-x-- /usr/lib/libdb-4.6.so b764e000 8K rw--- /usr/lib/libdb-4.6.so b7650000 4K rw--- [ anon ] b7651000 48K r-x-- /usr/lib/liblber-2.4.so.2.0.5 b765d000 4K rw--- /usr/lib/liblber-2.4.so.2.0.5 b765e000 244K r-x-- /usr/lib/libldap_r-2.4.so.2.0.5 b769b000 4K rw--- /usr/lib/libldap_r-2.4.so.2.0.5 b769c000 8K rw--- [ anon ] b769e000 1316K r-x-- /lib/tls/i686/cmov/libc-2.7.so b77e7000 4K r---- /lib/tls/i686/cmov/libc-2.7.so b77e8000 8K rw--- /lib/tls/i686/cmov/libc-2.7.so b77ea000 12K rw--- [ anon ] b77ed000 80K r-x-- /lib/tls/i686/cmov/libpthread-2.7.so b7801000 8K rw--- /lib/tls/i686/cmov/libpthread-2.7.so b7803000 8K rw--- [ anon ] b7805000 136K r-x-- /usr/lib/libapr-1.so.0.2.11 b7827000 4K rw--- /usr/lib/libapr-1.so.0.2.11 b7828000 4K rw--- [ anon ] b7829000 100K r-x-- /usr/lib/libaprutil-1.so.0.2.11 b7842000 4K rw--- /usr/lib/libaprutil-1.so.0.2.11 b7843000 152K r-x-- /usr/lib/libpcre.so.3.12.1 b7869000 4K rw--- /usr/lib/libpcre.so.3.12.1 b786a000 4K r-x-- /usr/lib/apache2/modules/mod_authz_default.so b786b000 4K rw--- /usr/lib/apache2/modules/mod_authz_default.so b786c000 4K r-x-- /usr/lib/apache2/modules/mod_authn_file.so b786d000 4K rw--- /usr/lib/apache2/modules/mod_authn_file.so b786e000 24K r-x-- /usr/lib/apache2/modules/mod_auth_digest.so b7874000 4K rw--- /usr/lib/apache2/modules/mod_auth_digest.so b7875000 8K r-x-- /usr/lib/apache2/modules/mod_auth_basic.so b7877000 4K rw--- /usr/lib/apache2/modules/mod_auth_basic.so b7878000 8K r-x-- /usr/lib/apache2/modules/mod_alias.so b787a000 4K rw--- /usr/lib/apache2/modules/mod_alias.so b787b000 8K rw--- [ anon ] b787d000 4K r-x-- [ anon ] b787e000 104K r-x-- /lib/ld-2.7.so b7898000 8K rw--- /lib/ld-2.7.so bfd68000 76K rwx-- [ stack ] bfd7b000 8K rw--- [ anon ] total 119008K I have no idea what's going on. I've tried adjusting the usual parameters (MaxClients, MaxRequestsPerClient, etc, but those don't do anything.) Note, also, that this is memory usage on startup - it doesn't grow, it just starts like this and then stays more or less constant. Ideas?

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