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  • Migrate from MySQL to PostgreSQL on Linux (Kubuntu)

    - by Dave Jarvis
    Storyline Trying to migrate a database from MySQL to PostgreSQL. All the documentation I have read covers, in great detail, how to migrate the structure. I have found very little documentation on migrating the data. The schema has 13 tables (which have been migrated successfully) and 9 GB of data. MySQL version: 5.1.x PostgreSQL version: 8.4.x I want to use the R programming language to analyze the data using SQL select statements; PostgreSQL has PL/R, but MySQL has nothing (as far as I can tell). A long time ago in a galaxy far, far away... Create the database location (/var has insufficient space; also dislike having the PostgreSQL version number everywhere -- upgrading would break scripts!): sudo mkdir -p /home/postgres/main sudo cp -Rp /var/lib/postgresql/8.4/main /home/postgres sudo chown -R postgres.postgres /home/postgres sudo chmod -R 700 /home/postgres sudo usermod -d /home/postgres/ postgres All good to here. Next, restart the server and configure the database using these installation instructions: sudo apt-get install postgresql pgadmin3 sudo /etc/init.d/postgresql-8.4 stop sudo vi /etc/postgresql/8.4/main/postgresql.conf Change data_directory to /home/postgres/main sudo /etc/init.d/postgresql-8.4 start sudo -u postgres psql postgres \password postgres sudo -u postgres createdb climate pgadmin3 Use pgadmin3 to configure the database and create a schema. A New Hope The episode began in a remote shell known as bash, with both databases running, and the installation of a command with a most unusual logo: SQL Fairy. perl Makefile.PL sudo make install sudo apt-get install perl-doc (strangely, it is not called perldoc) perldoc SQL::Translator::Manual Extract a PostgreSQL-friendly DDL and all the MySQL data: sqlt -f DBI --dsn dbi:mysql:climate --db-user user --db-password password -t PostgreSQL > climate-pg-ddl.sql mysqldump --skip-add-locks --complete-insert --no-create-db --no-create-info --quick --result-file="climate-my.sql" --databases climate --skip-comments -u root -p The Database Strikes Back Recreate the structure in PostgreSQL as follows: pgadmin3 (switch to it) Click the Execute arbitrary SQL queries icon Open climate-pg-ddl.sql Search for TABLE " replace with TABLE climate." (insert the schema name climate) Search for on " replace with on climate." (insert the schema name climate) Press F5 to execute This results in: Query returned successfully with no result in 122 ms. Replies of the Jedi At this point I am stumped. Where do I go from here (what are the steps) to convert climate-my.sql to climate-pg.sql so that they can be executed against PostgreSQL? How to I make sure the indexes are copied over correctly (to maintain referential integrity; I don't have constraints at the moment to ease the transition)? How do I ensure that adding new rows in PostgreSQL will start enumerating from the index of the last row inserted (and not conflict with an existing primary key from the sequence)? Resources A fair bit of information was needed to get this far: https://help.ubuntu.com/community/PostgreSQL http://articles.sitepoint.com/article/site-mysql-postgresql-1 http://wiki.postgresql.org/wiki/Converting_from_other_Databases_to_PostgreSQL#MySQL http://pgfoundry.org/frs/shownotes.php?release_id=810 http://sqlfairy.sourceforge.net/ Thank you!

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  • Interesting issue with WCF wsHttpBinding through a Firewall

    - by Marko
    I have a web application deployed in an internet hosting provider. This web application consumes a WCF Service deployed at an IIS server located at my company’s application server, in order to have data access to the company’s database, the network guys allowed me to expose this WCF service through a firewall for security reasons. A diagram would look like this. [Hosted page] --- (Internet) --- |Firewall <Public IP>:<Port-X >| --- [IIS with WCF Service <Comp. Network Ip>:<Port-Y>] link text I also wanted to use wsHttpBinding to take advantage of its security features, and encrypt sensible information. After trying it out I get the following error: Exception Details: System.ServiceModel.EndpointNotFoundException: The message with To 'http://<IP>:<Port>/service/WCFService.svc' cannot be processed at the receiver, due to an AddressFilter mismatch at the EndpointDispatcher. Check that the sender and receiver's EndpointAddresses agree. Doing some research I found out that wsHttpBinding uses WS-Addressing standards, and reading about this standard I learned that the SOAP header is enhanced to include tags like ‘MessageID’, ‘ReplyTo’, ‘Action’ and ‘To’. So I’m guessing that, because the client application endpoint specifies the Firewall IP address and Port, and the service replies with its internal network address which is different from the Firewall’s IP, then WS-Addressing fires the above message. Which I think it’s a very good security measure, but it’s not quite useful in my scenario. Quoting the WS-Addressing standard submission (http://www.w3.org/Submission/ws-addressing/) "Due to the range of network technologies currently in wide-spread use (e.g., NAT, DHCP, firewalls), many deployments cannot assign a meaningful global URI to a given endpoint. To allow these ‘anonymous’ endpoints to initiate message exchange patterns and receive replies, WS-Addressing defines the following well-known URI for use by endpoints that cannot have a stable, resolvable URI. http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous" HOW can I configure my wsHttpBinding Endpoint to address my Firewall’s IP and to ignore or bypass the address specified in the ‘To’ WS-Addressing tag in the SOAP message header? Or do I have to change something in my service endpoint configuration? Help and guidance will be much appreciated. Marko. P.S.: While I find any solution to this, I’m using basicHttpBinding with absolutely no problem of course.

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  • Getting macro keys from a razer blackwidow to work on linux

    - by Journeyman Geek
    I picked up a razer blackwidow ultimate that has additional keys meant for macros that are set using a tool that's installed on windows. I'm assuming that these arn't some fancypants joojoo keys and should emit scancodes like any other keys. Firstly is there a standard way to check these scancodes in linux? Secondly how do i set these keys to do things in command line and x based linux setups? My current linux install is xubuntu 10.10, but i'll be switching to kubuntu once i have a few things fixed up. Ideally the answer should be generic and system-wide Things i have tried so far: showkeys from the built in kbd package (in a seperate vt) - macro keys not detected xev - macro keys not detected lsusb and evdev output this ahk script's output suggests the M keys are not outputting standard scancodes Things i need to try snoopy pro + reverse engineering (oh dear) Wireshark - preliminary futzing around seems to indicate no scancodes emitted when what i seem to think is the keyboard is monitored and keys pressed. Might indicate additional keys are a seperate device or need to be initialised somehow. Need to cross reference that with lsusb output from linux, in 3 scenarios - standalone, passed through to a windows VM without the drivers installed, and the same with. LSUSB only detects one device on a standalone linux install It might be useful to check if the mice use the same razer synapse driver , since that means some variation of razercfg might work (not detected. only seems to work for mice) Things i have Have worked out: In a windows system with the driver, the keyboard is seen as a keyboard and a pointing device. And said pointing device uses, in addition to your bog standard mouse drivers.. a driver for something called a razer synapse. Mouse driver seen in linux under evdev and lsusb as well Single Device under OS X apparently, though i have yet to try lsusb equivilent on that Keyboard goes into pulsing backlight mode in OS X upon initialisation with the driver. This should probably indicate that there's some initialisation sequence sent to the keyboard on activation. They are, in fact, fancypants joojoo keys. Extending this question a little I have access to a windows system so if i need to use any tools on that to help answer the question, its fine. I can also try it on systems with and without the config utility. The expected end result is still to make those keys usable on linux however. I also realise this is a very specific family of hardware. I would be willing to test anything that makes sense on a linux system if i have detailed instructions - this should open up the question to people who have linux skills, but no access to this keyboard The minimum end result i require I need these keys detected, and usable in any fashion on any of the current graphical mainstream ubuntu varients

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  • The Skyline Problem.

    - by zeroDivisible
    I just came across this little problem on UVA's Online Judge and thought, that it may be a good candidate for a little code-golf. The problem: You are to design a program to assist an architect in drawing the skyline of a city given the locations of the buildings in the city. To make the problem tractable, all buildings are rectangular in shape and they share a common bottom (the city they are built in is very flat). The city is also viewed as two-dimensional. A building is specified by an ordered triple (Li, Hi, Ri) where Li and Ri are left and right coordinates, respectively, of building i and Hi is the height of the building. In the diagram below buildings are shown on the left with triples (1,11,5), (2,6,7), (3,13,9), (12,7,16), (14,3,25), (19,18,22), (23,13,29), (24,4,28) and the skyline, shown on the right, is represented by the sequence: 1, 11, 3, 13, 9, 0, 12, 7, 16, 3, 19, 18, 22, 3, 23, 13, 29, 0 The output should consist of the vector that describes the skyline as shown in the example above. In the skyline vector (v1, v2, v3, ... vn) , the vi such that i is an even number represent a horizontal line (height). The vi such that i is an odd number represent a vertical line (x-coordinate). The skyline vector should represent the "path" taken, for example, by a bug starting at the minimum x-coordinate and traveling horizontally and vertically over all the lines that define the skyline. Thus the last entry in the skyline vector will be a 0. The coordinates must be separated by a blank space. If I will not count declaration of provided (test) buildings and including all spaces and tab characters, my solution, in Python, is 223 characters long. Here is the condensed version: B=[[1,11,5],[2,6,7],[3,13,9],[12,7,16],[14,3,25],[19,18,22],[23,13,29],[24,4,28]] # Solution. R=range v=[0 for e in R(max([y[2] for y in B])+1)] for b in B: for x in R(b[0], b[2]): if b[1]>v[x]: v[x]=b[1] p=1 k=0 for x in R(len(v)): V=v[x] if p and V==0: continue elif V!=k: p=0 print "%s %s" % (str(x), str(V)), k=V I think that I didn't made any mistake but if so - feel free to criticize me. EDIT I don't have much reputation, so I will pay only 100 for a bounty - I am curious, if anyone could try to solve this in less than .. lets say, 80 characters. Solution posted by cobbal is 101 characters long and currently it is the best one. ANOTHER EDIT I thought, that 80 characters is a sick limit for this kind of problem. cobbal, with his 46 character solution totaly amazed me - though I must admit, that I spent some time reading his explanation before I partially understood what he had written.

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  • Sendmail relay authentication

    - by Pawel Veselov
    I'm trying to set up my sendmail to authenticate against a relay (comcast). I'm not seeing any attempts to authenticate at all. I'm trying to just debug how authentication works, and can't connect all the pieces... I have, in my .mc file: define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl define(`SMART_HOST', `relay:smtp.comcast.net.')dnl define(`confAUTH_MECHANISMS', `PLAIN')dnl FEATURE(`authinfo',`hash /etc/mail/client-info')dnl And in my /etc/mail/client-info: AuthInfo:*.comcast.net "U:root" "I:comcast_user" "P:comcast_password" Now, I know everything is fine with the u/p, as I could authenticate directly through SMTP, using telnet. There are two things I don't understand. When AuthInfo records are searched for, they are matched by the target hostname. How? Does it it use the map key (something I would expect), or uses the so-called "Domain" ("R:" parameter that I don't set in my auth-info line) What is "U:", really? Sendmail README (http://www.sendmail.org/m4/smtp_auth.html) says it's "user(authoraztion id)", and "I:" is "authentication ID". That suggests that my username should be in "U:", actually, but http://www.sendmail.org/~ca/email/auth.html says that "I:" is your remote user name. The session looks like this: [root@manticore]/etc/mail# sendmail -qf -v Warning: Option: AuthMechanisms requires SASL support (-DSASL) Running /var/spool/mqueue/p97CgcWq023273 (sequence 1 of 399) [email protected]... Connecting to smtp.comcast.net. port 587 via relay... 220 omta19.westchester.pa.mail.comcast.net comcast ESMTP server ready >>> EHLO my.host.name 250-omta19.westchester.pa.mail.comcast.net hello [my.ip.add.res], pleased to meet you 250-HELP 250-AUTH LOGIN PLAIN 250-SIZE 15728640 250-ENHANCEDSTATUSCODES 250-8BITMIME 250-STARTTLS 250 OK >>> STARTTLS 220 2.0.0 Ready to start TLS >>> EHLO my.host.name 250-omta19.westchester.pa.mail.comcast.net hello [my.ip.add.res], pleased to meet you 250-HELP 250-AUTH LOGIN PLAIN 250-SIZE 15728640 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 OK >>> MAIL From:<> SIZE=2183 550 5.1.0 Authentication required MAILER-DAEMON... aliased to postmaster postmaster... aliased to root root... aliased to [email protected] postmaster... aliased to root root... aliased to [email protected] >>> RSET 250 2.0.0 OK [root@manticore]/etc/mail# sendmail -d0.1 Version 8.14.3 Compiled with: DNSMAP LOG MAP_REGEX MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6 NETUNIX NEWDB NIS PIPELINING SCANF SOCKETMAP STARTTLS TCPWRAPPERS USERDB XDEBUG Thanks, Pawel.

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  • Access denied to mysql cause by invalid server hostname bind address

    - by Mark
    I cannot login to mysql using the terminal. [root@fst mysql]# mysql -h localhost -u admin -p Enter password: ERROR 1045 (28000): Access denied for user 'admin'@'localhost' (using password: YES) I am sure I have the correct password. The mysql is also running when I check status. The mysql database is also present in the directory /var/lib/mysql/. The host host.myi, host.myd and host.frm are present. By the way this a related to question on my previous problem MySQL server quit without updating PID file . Initially the problem arise when the root directory was full. To be able to login to directadmin and start mysql, I added a soft link of the /var/lib/mysql/ to /home/mysql. Since my database used up the most of the root directory. The root directory has 50Gb and /home has 1.5Gb. Somehow the /var/lib/mysql/idbdata1 is corrupted. So I move it to another location. Now, I can start the mysql server but I cannot login into it. Below are the contents from the myql logs. 121212 20:44:10 mysqld_safe mysqld from pid file /var/lib/mysql/fst.srv.net.pid ended 121212 20:44:10 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 121212 20:44:10 [Note] Plugin 'FEDERATED' is disabled. 121212 20:44:10 InnoDB: The InnoDB memory heap is disabled 121212 20:44:10 InnoDB: Mutexes and rw_locks use GCC atomic builtins 121212 20:44:10 InnoDB: Compressed tables use zlib 1.2.3 121212 20:44:10 InnoDB: Using Linux native AIO 121212 20:44:10 InnoDB: Initializing buffer pool, size = 128.0M 121212 20:44:10 InnoDB: Completed initialization of buffer pool 121212 20:44:10 InnoDB: highest supported file format is Barracuda. 121212 20:44:11 InnoDB: Waiting for the background threads to start 121212 20:44:12 InnoDB: 1.1.8 started; log sequence number 1595675 121212 20:44:12 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 121212 20:44:12 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 121212 20:44:12 [Note] Server socket created on IP: '0.0.0.0'. 121212 20:44:12 [Note] Event Scheduler: Loaded 0 events 121212 20:44:12 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.5.27-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) I guess there is something wrong with the bind address. How should I fix the problem?

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  • Problem in JSF2 with client-side state saving and serialization

    - by marcel
    I have a problem in JSF2 with client side state saving and serialization. I have created a page with a full description and a small class diagram: http://tinyurl.com/jsf2serial. For the client-side state saving I have to implement Serializable at the classes Search, BackingBean and Connection. The exception that was thrown is: java.io.NotSerializableException: org.apache.commons.httpclient.HttpClient at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at java.util.HashMap.writeObject(HashMap.java:1001) at sun.reflect.GeneratedMethodAccessor80.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326) at com.sun.faces.renderkit.ClientSideStateHelper.doWriteState(ClientSideStateHelper.java:293) at com.sun.faces.renderkit.ClientSideStateHelper.writeState(ClientSideStateHelper.java:167) at com.sun.faces.renderkit.ResponseStateManagerImpl.writeState(ResponseStateManagerImpl.java:123) at com.sun.faces.application.StateManagerImpl.writeState(StateManagerImpl.java:155) at com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:221) at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:397) at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:126) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:127) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:637) Maybe this is a problem of my design, because I am new in developing Java webapps.

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  • Scientific Linux - mysql and apachefail to start on reboot

    - by Derek Deed
    Both mysqld and httpd fail to restart following a reboot of the server, although chkconfig --list shows both daemons set to on for run levels 2,3,4 & 5 All control is being exectuted via Webmin Reboot server – MySQl and Apache not running MySQL Database Server MySQL version 5.1.69 MySQL is not running on your system - database list could not be retrieved. Click this button to start the MySQL database server on your system with the command /etc/rc.d/init.d/mysqld start. This Webmin module cannot administer the database until it is started. Apache Webserver Apache version 2.2.15 Start Apache Search Docs.. Global configuration Existing virtual hosts Create virtual host Select all. | Invert selection. Default Server Defines the default settings for all other virtual servers, and processes any unhandled requests. Address Any Port Any Server Name Automatic Document Root /var/www/drupal Virtual Server Processes all requests on port 443 not handled by other virtual servers. Address Any Port 443 Server Name Automatic Document Root /var/www/drupal Select all. | Invert selection. chkconfig --list mysqld mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off Manually Restart Apache chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off Manually Restart MySQL chkconfig --list mysqld mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off Everything now running okay; but no difference in the chkconfig outputs above. Set chkconfig --levels 235 httpd on /etc/init.d/httpd start The same for mysqld but no change in operation. Log files show that the shutdown has been completed successfully; but there is no indication of the service restarting until it is executed manually: 131112 13:59:15 InnoDB: Starting shutdown... 131112 13:59:16 InnoDB: Shutdown completed; log sequence number 0 881747021 131112 13:59:16 [Note] /usr/libexec/mysqld: Shutdown complete 131112 13:59:16 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended 131112 14:09:52 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 131112 14:09:52 InnoDB: Initializing buffer pool, size = 8.0M 131112 14:09:52 InnoDB: Completed initialization of buffer pool [Tue Nov 12 13:59:13 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Tue Nov 12 13:59:13 2013] [notice] Digest: generating secret for digest authentication ... [Tue Nov 12 13:59:13 2013] [notice] Digest: done [Tue Nov 12 13:59:14 2013] [notice] Apache/2.2.15 (Unix) DAV/2 PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations [Tue Nov 12 13:59:14 2013] [notice] caught SIGTERM, shutting down [Tue Nov 12 14:27:13 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Tue Nov 12 14:27:13 2013] [notice] Digest: generating secret for digest authentication ... [Tue Nov 12 14:27:13 2013] [notice] Digest: done [Tue Nov 12 14:27:13 2013] [notice] Apache/2.2.15 (Unix) DAV/2 PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations Is anyone able to shed any light on this problem, Cheers, Derek.

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  • LINQ to SQL: To Attach or Not To Attach

    - by bradhe
    So I'm have a really hard time figuring out when I should be attaching to an object and when I shouldn't be attaching to an object. First thing's first, here is a small diagram of my (very simplified) object model. Edit: Okay, apparently I'm not allowed to post images...here you go: http://i.imgur.com/2ROFI.png In my DAL I create a new DataContext every time I do a data-related operation. Say, for instance, I want to save a new user. In my business layer I create a new user. var user = new User(); user.FirstName = "Bob"; user.LastName = "Smith"; user.Username = "bob.smith"; user.Password = StringUtilities.EncodePassword("MyPassword123"); user.Organization = someOrganization; // Assume that someOrganization was loaded and it's data context has been garbage collected. Now I want to go save this user. var userRepository = new RepositoryFactory.GetRepository<UserRepository>(); userRepository.Save(user); Neato! Here is my save logic: public void Save(User user) { if (!DataContext.Users.Contains(user)) { user.Id = Guid.NewGuid(); user.CreatedDate = DateTime.Now; user.Disabled = false; //DataContext.Organizations.Attach(user.Organization); DataContext.Users.InsertOnSubmit(user); } else { DataContext.Users.Attach(user); } DataContext.SubmitChanges(); // Finished here as well. user.Detach(); } So, here we are. You'll notice that I comment out the bit where the DataContext attachs to the organization. If I attach to the organization I get the following exception: NotSupportedException: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported. Hmm, that doesn't work. Let me try it without attaching (i.e. comment out that line about attaching to the organization). DuplicateKeyException: Cannot add an entity with a key that is already in use. WHAAAAT? I can only assume this is trying to insert a new organization which is obviously false. So, what's the deal guys? What should I do? What is the proper approach? It seems like L2S makes this quite a bit harder than it should be...

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  • Mysql server fails to start

    - by Nicolas Thery
    Googling since two hours, I require your assistance. I'm on a Debian virtual machine and I cloned it. The only change is the new IP adress it has. Mysql doesn't start any more: Starting MySQL database server: mysqld . . . . . . . . . . . . . . failed! There is no process called mysql. All the mysql log files in /var/log are empty. here is my.cnf file : [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking bind-address = 127.0.0.1 key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M general_log_file = /var/log/mysql/mysql.log log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M [mysqld_safe] syslog Here is the result of ifconfig : eth0 Link encap:Ethernet HWaddr 00:0c:29:12:98:9a inet adr:192.168.1.138 Bcast:192.168.1.255 Masque:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:754 errors:0 dropped:0 overruns:0 frame:0 TX packets:106 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:1000 RX bytes:101177 (98.8 KiB) TX bytes:17719 (17.3 KiB) lo Link encap:Boucle locale inet adr:127.0.0.1 Masque:255.0.0.0 adr inet6: ::1/128 Scope:Hôte UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:8 errors:0 dropped:0 overruns:0 frame:0 TX packets:8 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 lg file transmission:0 RX bytes:560 (560.0 B) TX bytes:560 (560.0 B) As requested, here is the result of : sudo -u mysql mysqld, here is the result : root@debian:/home/nicolas/Bureau# sudo -u mysql mysqld 121004 14:26:57 [Note] Plugin 'FEDERATED' is disabled. mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 121004 14:26:57 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 121004 14:26:57 InnoDB: Initializing buffer pool, size = 8.0M 121004 14:26:57 InnoDB: Completed initialization of buffer pool 121004 14:26:57 InnoDB: Started; log sequence number 0 70822697 121004 14:26:57 [Note] Recovering after a crash using /var/log/mysql/mysql-bin 121004 14:26:57 [Note] Starting crash recovery... 121004 14:26:57 [Note] Crash recovery finished. 121004 14:26:57 [ERROR] mysqld: Can't find file: './mysql/host.frm' (errno: 13) 121004 14:26:57 [ERROR] Fatal error: Can't open and lock privilege tables: Can't find file: './mysql/host.frm' (errno: 13)

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  • Optimal setup for ASUS P6X58D Premium BIOS (no OC)?

    - by rumtscho
    Normally, I'd trust the mainboard manufacturer to choose the best options as defaults. But I had trouble with the board, because even with Quick Boot enabled, it booted twice as slowly as a Pentium 4 Celeron. Then I changed lots of options at once (most of them weren't explained in the manual, just mentioned with a single sentence) and the boot time is only marginally worse than the Pentium 4 (54 sec against 46 sec from button to pw entering screen). Now I don't know if I have turned something off which should have stayed on. I guess I even won't be able to boot from a CD now, because even though it is present in the boot sequence, I took off a timeout I think it needs to check whether there is a disk in the drive. The second reason is that I don't have an internal HDD, only a SSD. I forgot my sources blush but I am under the impression that today's BIOS and OS options are geared toward booting from a HDD, which is often less than optimal when one boots from a SSD, especially when there are functions which cause avoidable writing cycles, as a SSD wears out after too many writing cycles. Most of the things I've read concern the OS, but there are some BIOS-relevant options too. I am especially confused about the disk mode. The board supports AHCI, IDE-simulation and RAID, but of the different articles I've read, there is a proponent for each and no clear arguments for any. So can one tell me which options are important in general and which are important for a SSD-only system? I don't want to overclock the CPU, so you don't have to say anything about this (yes I know the board is meant for OC:)). I am thinking of overclocking the RAM, since they sold me 1600er heatsinked modules which are running at 1066 now, but I'm not sure yet about that. The rest of the system: i7-930, Intel X25-m G2, 6 GB RAM, GTS 250, some no-name Blue-ray ROM. 2 external HDDs over USB 2.0. Lots of other USB-connected hardware (12 devices I think), no SATA 3 drives (will disabling the controller have an impact on performance?), no LAN, only WiFi. Lucid Lynx 64 bit, no dual boot, no virtual installations. The main uses of the system are: managing and playing/showing all the media stored on the external disks, lots of image manipulation, some video editing, a bit of (non-demanding) gaming, rarely development. Lots of Internet surfing too, but this shouldn't have much impact on performance.

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  • Network communication for a turn based board game

    - by randooom
    Hi all, my first question here, so please don't be to harsh if something went wrong :) I'm currently a CS student (from Germany, if this info is of any use ;) ) and we got a, free selectable, programming assignment, which we have to write in a C++/CLI Windows Forms Application. My team, two others and me, decided to go for a network-compatible port of the board game Risk. We divided the work in 3 Parts, namely UI, game logic and network. Now we're on the part where we have to get everything working together and the big question mark is, how to get the clients synchronized with each other? Our approach so far is, that each client has all information necessary to calculate and/or execute all possible actions. Actually the clients have all information available at all, aside from the game-initializing phase (add players, select map, etc.), which needs one "super-client" with some extra stuff to control things. This is the standard scenario of our approach: player performs action, the action is valid and got executed on the players client action is sent over the network action is executed on the other clients The design (i.e. no or code so far) we came up with so far, is something like the following pseudo sequence diagram. Gui, Controller and Network implement all possible actions (i.e. all actions which change data) as methods from an interface. So each part can implement the method in a way to get their job done. Example with Action(): On the player side's Client: Player-->Gui.Action() Gui-->Controller.Action() Controller-->Logic.Action (Logic.Action() == NoError)? Controller-->Network.Action() Network-->Parser.ParseAction() Network.Send(msg) On all other clients: Network.Recv(msg) Network-->Parser.Deparse(msg) Parser-->Logic.Action() Logic-->Gui.Action() The questions: Is this a viable approach to our task? Any better/easier way to this? Recommendations, critique? Our knowledge (so you can better target your answer): We are on the beginner side, in regards to programming on a somewhat larger projects with a small team. All of us have some general programming experience and basic understanding of the .Net Libraries and Windows Forms. If you need any further information, please feel free to ask.

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  • Button.MouseDown

    - by Gilad
    Hi Guys, I'm relatively new with WPF. I'm trying to understand the difference between MouseDownEvent and PreviewMouseDownEvent. I understand the WPF event strategies and i understand that the MouseDown event is a bubbling event and the PreviewMouseDown is a tunneling event. I also understand the order of which these events are being fired - according to this MSDN overview http://msdn.microsoft.com/en-us/library/ms742806.aspx#routing (there is a diagram with example there). So i tried to code some my self, check this for example: <Grid x:Name="grid" Width="250"> <StackPanel Mouse.MouseDown="StackPanel_MouseDown" PreviewMouseDown="StackPanel_PreviewMouseDown"> <WPFVisualizerExample:MyButton x:Name="B1" PreviewMouseDown="B1_PreviewMouseDown" MouseDown="B1_MouseDown" Margin="5,5,5,5"> <WPFVisualizerExample:MyButton x:Name="B2" PreviewMouseDown="B2_PreviewMouseDown" MouseDown="B2_MouseDown" Margin="5,5,5,5"> <WPFVisualizerExample:MyButton x:Name="B3" PreviewMouseDown="B3_PreviewMouseDown" MouseDown="B3_MouseDown" Margin="5,5,5,5">Click Me</WPFVisualizerExample:MyButton> </WPFVisualizerExample:MyButton> </WPFVisualizerExample:MyButton> </StackPanel> </Grid> I have an event handler for each of the events (the preview and non-preview) and i wanted to see what is happening, which of the event is being thrown (i have a message box shown for each event). The 'MyButton' user control simply extends the base Button and override the OnMouseDown and OnPreviewMouseDown to set the e.Handled false: protected override void OnMouseDown(System.Windows.Input.MouseButtonEventArgs e) { base.OnMouseDown(e); e.Handled = false; } protected override void OnPreviewMouseDown(System.Windows.Input.MouseButtonEventArgs e) { base.OnPreviewMouseDown(e); e.Handled = false; } (tried with this and without this). According to the MSDN overview (in the link above), if i have 3 elements then the events route should be as follows: PreviewMouseDown (tunnel) on root element. PreviewMouseDown (tunnel) on intermediate element #1. PreviewMouseDown (tunnel) on source element #2. MouseDown (bubble) on source element #2. MouseDown (bubble) on intermediate element #1. MouseDown (bubble) on root element. So I expected the the message boxes to be shown according to the above. From some reason - which I don't understand only the preview events are being thrown (according to what the MSDN says Preview_B1=Preview_B2=Preview_B3). My expectations were: Preview_B1=Preview_B2=Preview_B3=NonPreview_B3=NonPreview_B2=NonPreview_B1. But the non-preview events are not being thrown at all. So basically I don't understand the route of the events, from MSDN overview I understood that the route starts from the root element, goes down (tunnel) to the source element and then back up (bubble) to the root element, but this is not what happening in practice. It is really important for me to understand how this events are working, i probably miss-understand something basic here, your help will be appreciated. THANX!! -Gili

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  • Having trouble getting MEF imports to be resolved

    - by Dave
    This is sort of a continuation of one of my earlier posts, which involves the resolving of modules in my WPF application. This question is specifically related to the effect of interdependencies of modules and the method of constructing those modules (i.e. via MEF or through new) on MEF's ability to resolve relationships. First of all, here is a simple UML diagram of my test application: I have tried two approaches: left approach: the App implements IError right approach: the App has a member that implements IError Left approach My code behind looked like this (just the MEF-related stuff): // app.cs [Export(typeof(IError))] public partial class Window1 : Window, IError { [Import] public CandyCo.Shared.LibraryInterfaces.IPlugin Plugin { get; set; } [Export] public CandyCo.Shared.LibraryInterfaces.ICandySettings Settings { get; set; } private ICandySettings Settings; public Window1() { // I create the preferences here with new, instead of using MEF. I wonder // if that's my whole problem? If I use MEF, and want to have parameters // going to the constructor, then do I have to [Export] a POCO (i.e. string)? Settings = new CandySettings( "Settings", @"c:\settings.xml"); var catalog = new DirectoryCatalog( "."); var container = new CompositionContainer( catalog); try { container.ComposeParts( this); } catch( CompositionException ex) { foreach( CompositionError e in ex.Errors) { string description = e.Description; string details = e.Exception.Message; } throw; } } } // plugin.cs [Export(typeof(IPlugin))] public class Plugin : IPlugin { [Import] public CandyCo.Shared.LibraryInterfaces.ICandySettings CandySettings { get; set; } [Import] public CandyCo.Shared.LibraryInterfaces.IError ErrorInterface { get; set; } [ImportingConstructor] public Plugin( ICandySettings candy_settings, IError error_interface) { CandySettings = candy_settings; ErrorInterface = error_interface; } } // candysettings.cs [Export(typeof(ICandySettings))] public class CandySettings : ICandySettings { ... } Right-side approach Basically the same as the left-side approach, except that I created a class that inherits from IError in the same assembly as Window1. I then used an [Import] to try to get MEF to resolve that for me. Can anyone explain how the two ways I have approached MEF here are flawed? I have been in the dark for so long that instead of reading about MEF and trying different suggestions, I've added MEF to my solution and am stepping into the code. The part where it looks like it fails is when it calls partManager.GetSavedImport(). For some reason, the importCache is null, which I don't understand. All the way up to this point, it's been looking at the part (Window1) and trying to resolve two imported interfaces -- IError and IPlugin. I would have expected it to enter code that looks at other assemblies in the same executable folder, and then check it for exports so that it knows how to resolve the imports...

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  • Debugging site written mainly in JScript with AJAX code injection

    - by blumidoo
    Hello, I have a legacy code to maintain and while trying to understand the logic behind the code, I have run into lots of annoying issues. The application is written mainly in Java Script, with extensive usage of jQuery + different plugins, especially Accordion. It creates a wizard-like flow, where client code for the next step is downloaded in the background by injecting a result of a remote AJAX request. It also uses callbacks a lot and pretty complicated "by convention" programming style (lots of events handlers are created on the fly based on certain object names - e.g. current page name, current step name). Adding to that, the code is very messy and there is no obvious inner structure - the functions are scattered in the code, file names do not reflect the business role of the code, lots of functions and code snippets are most likely not used at all etc. PROBLEM: How to approach this code base, so that the inner flow of the code can be sort-of "reverse engineered" using a suite of smart debugging tools. Ideally, I would like to be able to attach to the running application and step through the code, breaking on each new function call. Also, it would be nice to be able to create a "diagram of calls" in the application (i.e. in order to run a particular page logic, this particular flow of function calls was executed in a particular order). Not to mention to be able to run a coverage analysis, identifying potentially orphaned code fragments. I would like to stress out once more, that it is impossible to understand the inner logic of the application just by looking at the code itself, unless you have LOTS of spare time and beer crates, which I unfortunately do not have :/ (shame...) An IDE of some sort that would aid in extending that code would be also great, but I am currently looking into possibility to use Visual Studio 2010 to do the job, as the site itself is a mix of Classic ASP and ASP.NET (I'd say - 70% Java Script with jQuery, 30% ASP). I have obviously tried FireBug, but I was unable to find a way to define a breakpoint or step into the code, which is "injected" into the client JS using AJAX calls (i.e. the application retrieves the code by invoking an URL and injects it to the client local code). Venkman debugger had similar issues. Any hints would be welcome. Feel free to ask additional questions.

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  • Lifetime issue of IDisposable unmanaged resources in a complex object graph?

    - by stakx
    This question is about dealing with unmanaged resources (COM interop) and making sure there won't be any resource leaks. I'd appreciate feedback on whether I seem to do things the right way. Background: Let's say I've got two classes: A class LimitedComResource which is a wrapper around a COM object (received via some API). There can only be a limited number of those COM objects, therefore my class implements the IDisposable interface which will be responsible for releasing a COM object when it's no longer needed. Objects of another type ManagedObject are temporarily created to perform some work on a LimitedComResource. They are not IDisposable. To summarize the above in a diagram, my classes might look like this: +---------------+ +--------------------+ | ManagedObject | <>------> | LimitedComResource | +---------------+ +--------------------+ | o IDisposable (I'll provide example code for these two classes in just a moment.) Question: Since my temporary ManagedObject objects are not disposable, I obviously have no control over how long they'll be around. However, in the meantime I might have Disposed the LimitedComObject that a ManagedObject is referring to. How can I make sure that a ManagedObject won't access a LimitedComResource that's no longer there? +---------------+ +--------------------+ | managedObject | <>------> | (dead object) | +---------------+ +--------------------+ I've currently implemented this with a mix of weak references and a flag in LimitedResource which signals whether an object has already been disposed. Is there any better way? Example code (what I've currently got): LimitedComResource: class LimitedComResource : IDisposable { private readonly IUnknown comObject; // <-- set in constructor ... void Dispose(bool notFromFinalizer) { if (!this.isDisposed) { Marshal.FinalReleaseComObject(comObject); } this.isDisposed = true; } internal bool isDisposed = false; } ManagedObject: class ManagedObject { private readonly WeakReference limitedComResource; // <-- set in constructor ... public void DoSomeWork() { if (!limitedComResource.IsAlive()) { throw new ObjectDisposedException(); // ^^^^^^^^^^^^^^^^^^^^^^^ // is there a more suitable exception class? } var ur = (LimitedComResource)limitedComResource.Target; if (ur.isDisposed) { throw new ObjectDisposedException(); } ... // <-- do something sensible here! } }

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  • innobackupex - after restoring - quit without updating PID file

    - by clarkk
    After restoring a backup the server can't start.. restoring # tar -izxf /var/www/bak/db/2013-11-10-1437_mysql.tar.gz -C /var/www/bak/db_import # innobackupex --use-memory=1G --apply-log /var/www/bak/db_import # service mysql stop # mv /var/lib/mysql /var/lib/mysql-old # mkdir /var/lib/mysql # innobackupex --copy-back /var/www/bak/db_import # chown -R mysql:mysql /var/lib/mysql # service mysql start error log 131110 21:24:20 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 2013-11-10 21:24:21 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2013-11-10 21:24:21 6194 [Warning] Using pre 5.5 semantics to load error messages from /opt/mysql/server-5.6/share/english/. 2013-11-10 21:24:21 6194 [Warning] If this is not intended, refer to the documentation for valid usage of --lc-messages-dir and --language parameters. 2013-11-10 21:24:21 6194 [Note] Plugin 'FEDERATED' is disabled. /usr/local/mysql/bin/mysqld: Table 'mysql.plugin' doesn't exist 2013-11-10 21:24:21 6194 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 2013-11-10 21:24:21 6194 [Note] InnoDB: The InnoDB memory heap is disabled 2013-11-10 21:24:21 6194 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2013-11-10 21:24:21 6194 [Note] InnoDB: Compressed tables use zlib 1.2.3 2013-11-10 21:24:21 6194 [Note] InnoDB: Using Linux native AIO 2013-11-10 21:24:21 6194 [Note] InnoDB: Not using CPU crc32 instructions 2013-11-10 21:24:21 6194 [Note] InnoDB: Initializing buffer pool, size = 128.0M 2013-11-10 21:24:21 6194 [Note] InnoDB: Completed initialization of buffer pool 2013-11-10 21:24:21 6194 [Note] InnoDB: Highest supported file format is Barracuda. 2013-11-10 21:24:22 6194 [Note] InnoDB: 128 rollback segment(s) are active. 2013-11-10 21:24:22 6194 [Note] InnoDB: Waiting for purge to start 2013-11-10 21:24:22 6194 [Note] InnoDB: 5.6.12 started; log sequence number 636992658 2013-11-10 21:24:22 6194 [Note] Server hostname (bind-address): '127.0.0.1'; port: 3306 2013-11-10 21:24:22 6194 [Note] - '127.0.0.1' resolves to '127.0.0.1'; 2013-11-10 21:24:22 6194 [Note] Server socket created on IP: '127.0.0.1'. 2013-11-10 21:24:22 6194 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist 131110 21:24:22 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended mysql_upgrade /opt/mysql/server-5.6/bin/mysql_upgrade -u root -pxxxxx -P 3308 Warning: Using a password on the command line interface can be insecure. Looking for 'mysql' as: /opt/mysql/server-5.6/bin/mysql Looking for 'mysqlcheck' as: /opt/mysql/server-5.6/bin/mysqlcheck FATAL ERROR: Upgrade failed

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  • Could I centralize batch files more efficiently?

    - by PeanutsMonkey
    I am new to the world of batch scripting so please forgive what may appear as basic questions. I am learning as I get assigned different jobs and I am a huge proponent of automation where possible. I have several batch files that perform several tasks. Each of these files had their paths hard-coded e.g. c:\temp. d:\data, etc in the batch file. Initially I moved these to a text file I could call from a batch file e.g. for /f "tokens=1,2 delims==" %%R in (config.txt) do ( if %%R==bdata set bdata=%%S if %%R==cdata set cdata=%%S ) The config.txt file contains these values bdata=c:\temp cdata=d:\data I realized that each time I would need to create a new variable, I would need to update the config.txt file as well the config.bat files. I decided I would move all the values to just the config.bat file as follows set bdata=c:\temp set cdata=d:\data I then updated each of the existing batch files to call the variables rather than the hard-coded paths. I also added the following lines of code to each batch file except config.bat. The only additional line added to the config.bat file is @echo off. @echo off setlocal enableextensions enabledelayedexpansion call config.bat I then have another batch file that centralizes calling all the batch files in sequence. The name of this batch file is start.bat. The reason I am using start /wait is because there have been instances of where the delete.bat runs before compress.bat has had an opportunity to finish. start /wait compress.bat start /wait validate.bat start /wait delete.bat Questions Is this the best way to centralize values and if not, what is a better way? Do I need to specify setlocal enableextensions enabledelayedexpansion in all the existing batch files? Do all the batch files have to have @echo off or is it sufficient for just the config.bat file? Is start /wait the best way to call multiple files? Can I pass values from one batch file to another using the said command? All the batch files have different functions e.g. move, delete, etc however use %%a or %%b. Is this okay? For example The validate.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == "" move /Y "%bdata%\%%~xa" "%bdata%\%done%" and the delete.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == ".txt" del "%%a"

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  • PC freezing when used to print labels

    - by Will
    Hi I have a windows XP machine that is used to print labels from a Zebra label printer. It is connected a member of the domain. I am getting reports that when people try to use the computer it will sometimes be frozen to the point where they have to physically shut the machine down and boot to get it responding. (this happens about once a day). I took a look in Event Viewer and nabbed some of these errors out of it: Event Type: Error Event Source: Userenv Event Category: None Event ID: 1054 Date: 11/12/2010 Time: 9:13:04 AM User: NT AUTHORITY\SYSTEM Computer: FS-LABELMACHINE Description: Windows cannot obtain the domain controller name for your computer network. (A socket operation was attempted to an unreachable host. ). Group Policy processing aborted. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Event Type: Error Event Source: AutoEnrollment Event Category: None Event ID: 15 Date: 11/11/2010 Time: 11:08:25 PM User: N/A Computer: FS-LABELMACHINE Description: Automatic certificate enrollment for local system failed to contact the active directory (0x80072751). A socket operation was attempted to an unreachable host. Enrollment will not be performed. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Hanging application MSACCESS.EXE, version 11.0.8166.0, hang module hungapp, version 0.0.0.0, hang address 0x00000000. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.... SearchIndexer (2420) Unable to write a shadowed header for file C:\Documents and Settings\All Users\Application Data\Microsoft\Search\Data\Applications\Windows\MSS.chk. Error -1032. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Failed auto update retrieval of third-party root list sequence number from: <http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt> with error: A connection with the server could not be established For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. I'm not really sure what to make out of this... Thanks for the help in advanced, Will

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  • Why MySQL sat for 2 minutes doing nothing?

    - by Alex R
    This was a one-time thing, not reproducible... But I saved the show innodb status output. Can anybody tell what's going on here? The simple insert took almost 3 minutes to complete. | InnoDB | | ===================================== 110201 15:58:10 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 34 seconds ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 11963, signal count 11766 --Thread 1824 has waited at .\btr\btr0cur.c line 443 for 118.00 seconds the sema phore: S-lock on RW-latch at 09D6453C created in file .\buf\buf0buf.c line 550 a writer (thread id 1824) has reserved it in mode wait exclusive number of readers 1, waiters flag 1 Last time read locked in file .\buf\buf0flu.c line 599 Last time write locked in file .\btr\btr0cur.c line 443 Mutex spin waits 0, rounds 527817, OS waits 7133 RW-shared spins 2532, OS waits 1226; RW-excl spins 1652, OS waits 1118 ------------ TRANSACTIONS ------------ Trx id counter 0 95830 Purge done for trx's n:o < 0 95814 undo n:o < 0 0 History list length 11 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 0 0, not started, OS thread id 3704 MySQL thread id 551, query id 2702112 localhost 127.0.0.1 root show innodb status ---TRANSACTION 0 95829, not started, OS thread id 3132 MySQL thread id 534, query id 2702020 localhost 127.0.0.1 root ---TRANSACTION 0 95828, not started, OS thread id 3152 MySQL thread id 527, query id 2701973 localhost 127.0.0.1 root ---TRANSACTION 0 95827, ACTIVE 118 sec, OS thread id 1824 inserting, thread decl ared inside InnoDB 500 mysql tables in use 1, locked 1 1 lock struct(s), heap size 320, 0 row lock(s) MySQL thread id 526, query id 2701972 localhost 127.0.0.1 root update INSERT INTO log_searchcriteria (userid,search_criteria,date,search_type) VALUES ( NAME_CONST('userid',NULL), NAME_CONST('search_criteria',_latin1' SELECT SQL_C ALC_FOUND_ROWS idx_search.CTCX_LATITUDE, idx_search.CTCX_LONGITUDE, idx_search.b uilding_id, idx_search.LN_LIST_NUMBER, idx_search.LP_LIST_PRICE, idx_search.HSN_ ADRESS_HOUSE_NUMBER, idx_search.STR_ADDRESS_STREET, idx_search.CP_ADDRESS_COMPAS S_POINT, idx_search.UN_UNIT, idx_search.CIT_CITY, idx_search.ZP_ZIP_CODE, idx_se arch.AR_AREA_NAME, idx_search.BR_BEDROOMS, idx_search.BTH_BATHS, idx_search.ST_S TATUS, idx_search.CTCX_STYLE_TYPE, idx_s -------- FILE I/O -------- I/O thread 0 state: wait Windows aio (insert buffer thread) I/O thread 1 state: wait Windows aio (log thread) I/O thread 2 state: wait Windows aio (read thread) I/O thread 3 state: wait Windows aio (write thread) Pending normal aio reads: 0, aio writes: 1, ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0 Pending flushes (fsync) log: 0; buffer pool: 0 151006 OS file reads, 120758 OS file writes, 6844 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 5, seg size 7, 24664 inserts, 24664 merged recs, 4612 merges Hash table size 553253, node heap has 629 buffer(s) 0.00 hash searches/s, 0.00 non-hash searches/s --- LOG --- Log sequence number 5 2318193115 Log flushed up to 5 2318193115 Last checkpoint at 5 2318129891 0 pending log writes, 0 pending chkp writes 3036 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total memory allocated 213459462; in additional pool allocated 1720192 Dictionary memory allocated 240416 Buffer pool size 8192 Free buffers 0 Database pages 7563 Modified db pages 18 Pending reads 0 Pending writes: LRU 0, flush list 18, single page 0 Pages read 150973, created 28788, written 115137 0.00 reads/s, 0.00 creates/s, 0.00 writes/s No buffer pool page gets since the last printout -------------- ROW OPERATIONS -------------- 1 queries inside InnoDB, 0 queries in queue 1 read views open inside InnoDB Main thread id 2992, state: flushing buffer pool pages Number of rows inserted 794294, updated 89203, deleted 13698, read 1453084305 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================ Thanks

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  • how does openvpn decide which interface to get IP addrs from

    - by bkrupa
    Using ubuntu 10.04 on both ends. We have a client and server machine on the SAME network attempting to make a vpn connection. We use the config files from here and made minimal changes. The server and client start and seem to connect without any trouble. The server looks like: Wed Feb 23 22:13:22 2011 MULTI: multi_create_instance called Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Re-using SSL/TLS context Wed Feb 23 22:13:22 2011 192.168.1.55:47166 LZO compression initialized Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Control Channel MTU parms [ L:1574 D:138 EF:38 EB:0 ET:0 EL:0 ] Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Data Channel MTU parms [ L:1574 D:1450 EF:42 EB:135 ET:32 EL:0 AF:3/1 ] Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Local Options hash (VER=V4): 'f7df56b8' Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Expected Remote Options hash (VER=V4): 'd79ca330' Wed Feb 23 22:13:22 2011 192.168.1.55:47166 TLS: Initial packet from 192.168.1.55:47166, sid=69112e42 5458135b *...* Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA Wed Feb 23 22:13:22 2011 192.168.1.55:47166 [client1] Peer Connection Initiated with 192.168.1.55:47166 On the client side the connection looks like: Wed Feb 23 22:20:07 2011 [server] Peer Connection Initiated with [AF_INET]192.168.1.41:1194 Wed Feb 23 22:20:10 2011 SENT CONTROL [server]: 'PUSH_REQUEST' (status=1) Wed Feb 23 22:20:10 2011 PUSH: Received control message: 'PUSH_REPLY,route-gateway 10.8.0.4,ping 10,ping-restart 120,ifconfig 10.8.0.50 255.255.255.0' ... Wed Feb 23 22:20:10 2011 /sbin/ifconfig tap0 10.8.0.50 netmask 255.255.255.0 mtu 1500 broadcast 10.8.0.255 Wed Feb 23 22:20:10 2011 Initialization Sequence Completed The openvpn server has been configured to assign ip addresses in the range 10.8.0.* and the client has been given 10.8.0.50. When I run the following nmap from the client: Starting Nmap 5.00 ( http://nmap.org ) at 2011-02-23 22:04 EST Host 10.8.0.50 is up (0.00047s latency). Nmap done: 256 IP addresses (1 host up) scanned in 30.34 seconds Host 192.168.1.1 is up (0.0025s latency). Host 192.168.1.18 is up (0.074s latency). Host 192.168.1.41 is up (0.0024s latency). Host 192.168.1.55 is up (0.00018s latency). Nmap done: 256 IP addresses (4 hosts up) scanned in 6.33 seconds If I run an nmap from the server on 10.8.0.* I get nothing. If the client has two interfaces (wireless and tap device) when you look for a certain ip address, how does it decide which interface to connect on?

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  • configuration required for HIVE to be installed on a node

    - by ????? ????????
    I went through the process of manually installing ambari (not through SSH, because I couldnt get keyless to work) and everything installed OK, except for HIVE and GANGLIA. I got this message: stderr: None stdout: warning: Unrecognised escape sequence ‘\;’ in file /var/lib/ambari-agent/puppet/modules/hdp-hive/manifests/hive/service_check.pp at line 32 warning: Dynamic lookup of $configuration is deprecated. Support will be removed in Puppet 2.8. Use a fully-qualified variable name (e.g., $classname::variable) or parameterized classes. notice: /Stage[1]/Hdp::Snappy::Package/Hdp::Snappy::Package::Ln[32]/Hdp::Exec[hdp::snappy::package::ln 32]/Exec[hdp::snappy::package::ln 32]/returns: executed successfully notice: /Stage[2]/Hdp-hive::Hive::Service_check/File[/tmp/hiveserver2Smoke.sh]/ensure: defined content as ‘{md5}7f1d24221266a2330ec55ba620c015a9' notice: /Stage[2]/Hdp-hive::Hive::Service_check/File[/tmp/hiveserver2.sql]/ensure: defined content as ‘{md5}0c429dc9ae0867b5af74ef85b5530d84' notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/File[/tmp/hcatSmoke.sh]/ensure: defined content as ‘{md5}bae7742f7083db968cb6b2bd208874cb’ notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: 13/06/25 03:11:56 WARN conf.HiveConf: DEPRECATED: Configuration property hive.metastore.local no longer has any effect. Make sure to provide a valid value for hive.metastore.uris if you are connecting to a remote metastore. notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: FAILED: SemanticException org.apache.hadoop.hive.ql.parse.SemanticException: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: 13/06/25 03:12:06 WARN conf.HiveConf: DEPRECATED: Configuration property hive.metastore.local no longer has any effect. Make sure to provide a valid value for hive.metastore.uris if you are connecting to a remote metastore. notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: FAILED: SemanticException [Error 10001]: Table not found hcatsmokeida8c07401_date102513 notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: 13/06/25 03:12:15 WARN conf.HiveConf: DEPRECATED: Configuration property hive.metastore.local no longer has any effect. Make sure to provide a valid value for hive.metastore.uris if you are connecting to a remote metastore. notice: /Stage[2]/Hdp-hcat::Hcat::Service_check/Exec[hcatSmoke.sh prepare]/returns: FAILED: SemanticException o When i go to the alerts and health checks i’m getting this: ive Metastore status check CRIT for 42 minutes CRITICAL: Error accessing hive-metaserver status [13/06/25 03:44:06 WARN conf.HiveConf: DEPRECATED: Configuration property hive.metastore.local no longer has any effect. What am I doing wrong? I have already tried to do ambari-server reset on the the database without results.

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  • Scientific Linux - mysql and apache fail to start on reboot

    - by Derek Deed
    Both mysqld and httpd fail to restart following a reboot of the server, although chkconfig --list shows both daemons set to on for run levels 2,3,4 & 5 All control is being exectuted via Webmin Reboot server – MySQl and Apache not running MySQL Database Server MySQL version 5.1.69 MySQL is not running on your system - database list could not be retrieved. ________________________________________ Click this button to start the MySQL database server on your system with the command /etc/rc.d/init.d/mysqld start. This Webmin module cannot administer the database until it is started. Apache Webserver Apache version 2.2.15 Start Apache Search Docs.. Global configuration Existing virtual hosts Create virtual host Select all. | Invert selection. Default Server Defines the default settings for all other virtual servers, and processes any unhandled requests. Address Any Port Any Server Name Automatic Document Root /var/www/drupal Virtual Server Processes all requests on port 443 not handled by other virtual servers. Address Any Port 443 Server Name Automatic Document Root /var/www/drupal Select all. | Invert selection. chkconfig --list mysqld mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off Manually Restart Apache chkconfig --list httpd httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off Manually Restart MySQL chkconfig --list mysqld mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off Everything now running okay; but no difference in the chkconfig outputs above. I tried: chkconfig --levels 235 httpd on /etc/init.d/httpd start and the same for mysqld but no change in operation. Log files show that the shutdown has been completed successfully; but there is no indication of the service restarting until it is executed manually: 131112 13:59:15 InnoDB: Starting shutdown... 131112 13:59:16 InnoDB: Shutdown completed; log sequence number 0 881747021 131112 13:59:16 [Note] /usr/libexec/mysqld: Shutdown complete 131112 13:59:16 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended 131112 14:09:52 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql 131112 14:09:52 InnoDB: Initializing buffer pool, size = 8.0M 131112 14:09:52 InnoDB: Completed initialization of buffer pool And the Apache logs: [Tue Nov 12 13:59:13 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Tue Nov 12 13:59:13 2013] [notice] Digest: generating secret for digest authentication ... [Tue Nov 12 13:59:13 2013] [notice] Digest: done [Tue Nov 12 13:59:14 2013] [notice] Apache/2.2.15 (Unix) DAV/2 PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations [Tue Nov 12 13:59:14 2013] [notice] caught SIGTERM, shutting down [Tue Nov 12 14:27:13 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec) [Tue Nov 12 14:27:13 2013] [notice] Digest: generating secret for digest authentication ... [Tue Nov 12 14:27:13 2013] [notice] Digest: done [Tue Nov 12 14:27:13 2013] [notice] Apache/2.2.15 (Unix) DAV/2 PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations Is anyone able to shed any light on this problem?

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  • Ubuntu 12.04 crash analysis - strange binary data on all open files at the moment of crash

    - by lanbo
    A couple of hours ago we got a system crash on Ubuntu 12.04. We checked all the log files and there is nothing suspicious to blame to. Last stuff that was logged was some dovecot activity. There are no kernel panic messages. Nothing. It is a new server (new hardware) we are testing before production. And because it is new hard, I'm suspicious the problem may be due to some faulty hardware. We already run memtester with no problem detected. I'll be happy to hear from other hardware testing tools (the machine has SSD). Anyway, the thing I wanted to ask you is a different one. The strange thing is on every open file at the moment of the crash we found the next sequence of symbols was written into them: "@^@^@^@^@^@^@...". For example, on the syslog log file we got: Apr 16 15:53:56 odyssey dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=<info>, method=PLAIN, rip=46.29.255.73, lip=5.9.58.177 ^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^ [these continues for about 1000 chars...] ^@^@^@^@Apr 16 15:55:12 odyssey kernel: imklog 5.8.6, log source = /proc/kmsg started. We got all these symbols in all open files. These include: syslog, mail.log, kern.log, ... But also on some logs that are output by php scripts run in CRONs from user accounts (not root). So, any idea why all open files got these characters written during the crash? This is pretty bad since the crash corrupted many files (we don't even know which other ones may be affected). We are suspicious that all open files (in write mode maybe) at the moment of the crash got all these symbols inserted. Why is that? BTW [in case it helps], the system automatically rebooted after the crash but Apache did not start. There were not traces in /var/apache2/*log why apache did not start. After running a "service apache2 start" it started with no problems. Also, we rebooted the machine manually and Apache also started on reboot. But it did not start after the crash and no errors were reported. Thanks guys!

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  • flashcache with mdadm and LVM

    - by Backtogeek
    I am having trouble setting up flashcache on a system with LVM and mdadm, I suspect I am either just missing an obvious step or getting some mapping wrong and hoped someone could point me in the right direction? system info: CentOS 6.4 64 bit mdadm config md0 : active raid1 sdd3[2] sde3[3] sdf3[4] sdg3[5] sdh3[1] sda3[0] 204736 blocks super 1.0 [6/6] [UUUUUU] md2 : active raid6 sdd5[2] sde5[3] sdf5[4] sdg5[5] sdh5[1] sda5[0] 3794905088 blocks super 1.1 level 6, 512k chunk, algorithm 2 [6/6] [UUUUUU] md3 : active raid0 sdc1[1] sdb1[0] 250065920 blocks super 1.1 512k chunks md1 : active raid10 sdh1[1] sda1[0] sdd1[2] sdf1[4] sdg1[5] sde1[3] 76749312 blocks super 1.1 512K chunks 2 near-copies [6/6] [UUUUUU] pcsvan PV /dev/mapper/ssdcache VG Xenvol lvm2 [3.53 TiB / 3.53 TiB free] Total: 1 [3.53 TiB] / in use: 1 [3.53 TiB] / in no VG: 0 [0 ] flashcache create command used: flashcache_create -p back ssdcache /dev/md3 /dev/md2 pvdisplay --- Physical volume --- PV Name /dev/mapper/ssdcache VG Name Xenvol PV Size 3.53 TiB / not usable 106.00 MiB Allocatable yes PE Size 128.00 MiB Total PE 28952 Free PE 28912 Allocated PE 40 PV UUID w0ENVR-EjvO-gAZ8-TQA1-5wYu-ISOk-pJv7LV vgdisplay --- Volume group --- VG Name Xenvol System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 2 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 3.53 TiB PE Size 128.00 MiB Total PE 28952 Alloc PE / Size 40 / 5.00 GiB Free PE / Size 28912 / 3.53 TiB VG UUID 7vfKWh-ENPb-P8dV-jVlb-kP0o-1dDd-N8zzYj So that is where I am at, I thought that was the job done however when creating a logical volume called test and mounting it is /mnt/test the sequential write is pathetic, 60 ish MB/s /dev/md3 has 2 x SSD's in Raid0 which alone is performing at around 800 MB/s sequential write and I am trying to cache /dev/md2 which is 6 x 1TB drives in raid6 I have read a number of pages through the day and some of them here, it is obvious from the results that the cache is not functioning but I am unsure why. I have added the filter line in the lvm.conf filter = [ "r|/dev/sdb|", "r|/dev/sdc|", "r|/dev/md3|" ] It is probably something silly but the cache is clearly performing no writes so I suspect I am not mapping it or have not mounted the cache correctly. dmsetup status ssdcache: 0 7589810176 flashcache stats: reads(142), writes(0) read hits(133), read hit percent(93) write hits(0) write hit percent(0) dirty write hits(0) dirty write hit percent(0) replacement(0), write replacement(0) write invalidates(0), read invalidates(0) pending enqueues(0), pending inval(0) metadata dirties(0), metadata cleans(0) metadata batch(0) metadata ssd writes(0) cleanings(0) fallow cleanings(0) no room(0) front merge(0) back merge(0) force_clean_block(0) disk reads(9), disk writes(0) ssd reads(133) ssd writes(9) uncached reads(0), uncached writes(0), uncached IO requeue(0) disk read errors(0), disk write errors(0) ssd read errors(0) ssd write errors(0) uncached sequential reads(0), uncached sequential writes(0) pid_adds(0), pid_dels(0), pid_drops(0) pid_expiry(0) lru hot blocks(31136000), lru warm blocks(31136000) lru promotions(0), lru demotions(0) Xenvol-test: 0 10485760 linear I have included as much info as I can think of, look forward to any replies.

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