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  • How can an improvement to the query cache be tracked?

    - by Bill Paetzke
    I am parameterizing my web app's ad hoc sql. As a result, I expect the query plan cache to reduce in size and have a higher hit ratio. Perhaps even other important metrics will be improved. Could I use perfmon to track this? If so, what counters should I use? If not perfmon, how could I report on the impact of this change?

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  • PHP - get MySQL query results as their native data type?

    - by redidas
    I've tried fetching MySQL query results using mysql_fetch_row() mysql_result() and numeric values are being returned as strings. Is there any way to fetch the data as its datatype stored in the table? The application will be querying many different queries so I will be unable to cast the values as the intended datatype on a 1 by 1 basis.

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  • Running query from scratch with something like exec function?

    - by Steel Plume
    Hi, is it possible to make something similar to the following with Postgresql without using a function? pseudo sql code: select * from sometable where somecol = somevalue AND someothercol IN exec( 'select something from exclusionlist' ) My primary intention is to build up a table with predefined queries to call inside a where clause pseudo sql code: select * from sometable where somecol = somevalue AND someothercol IN exec( select query from predefinedqueries where id=someid )

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  • Understanding and Controlling Parallel Query Processing in SQL Server

    Data warehousing and general reporting applications tend to be CPU intensive because they need to read and process a large number of rows. To facilitate quick data processing for queries that touch a large amount of data, Microsoft SQL Server exploits the power of multiple logical processors to provide parallel query processing operations such as parallel scans. Through extensive testing, we have learned that, for most large queries that are executed in a parallel fashion, SQL Server can deliver linear or nearly linear response time speedup as the number of logical processors increases. However, some queries in high parallelism scenarios perform suboptimally. There are also some parallelism issues that can occur in a multi-user parallel query workload. This white paper describes parallel performance problems you might encounter when you run such queries and workloads, and it explains why these issues occur. In addition, it presents how data warehouse developers can detect these issues, and how they can work around them or mitigate them.

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  • why is $0 set to -bash?

    - by James Shimer
    First login process name seems to be set to "-bash", but if I subshell then it becomes "bash". for example: root@nowere:~# echo $0 -bash root@nowere:~# bash root@nowere:~# echo $0 bash -bash is causing some scripts to fail, such as . /usr/share/debconf/confmodule exec /usr/share/debconf/frontend -bash Can't exec "-bash": No such file or directory at /usr/share/perl/5.14/IPC/Open3.pm line 186. open2: exec of -bash failed at /usr/share/perl5/Debconf/ConfModule.pm line 59 Anyone know the reason $0 is set to -bash?

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  • MySQL 5.5 - Lost connection to MySQL server during query

    - by bully
    I have an Ubuntu 12.04 LTS server running at a german hoster (virtualized system). # uname -a Linux ... 3.2.0-27-generic #43-Ubuntu SMP Fri Jul 6 14:25:57 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I want to migrate a Web CMS system, called Contao. It's not my first migration, but my first migration having connection issues with mysql. Migration went successfully, I have the same Contao version running (it's more or less just copy / paste). For the database behind, I did: apt-get install mysql-server phpmyadmin I set a root password and added a user for the CMS which has enough rights on its own database (and only its database) for doing the stuff it has to do. Data import via phpmyadmin worked just fine. I can access the backend of the CMS (which needs to deal with the database already). If I try to access the frontend now, I get the following error: Fatal error: Uncaught exception Exception with message Query error: Lost connection to MySQL server during query (<query statement here, nothing special, just a select>) thrown in /var/www/system/libraries/Database.php on line 686 (Keep in mind: I can access mysql with phpmyadmin and through the backend, working like a charme, it's just the frontend call causing errors). If I spam F5 in my browser I can sometimes even kill the mysql deamon. If I run # mysqld --log-warnings=2 I get this: ... 120921 7:57:31 [Note] mysqld: ready for connections. Version: '5.5.24-0ubuntu0.12.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu) 05:57:37 UTC - mysqld got signal 4 ; This could be because you hit a bug. It is also possible that this binary or one of the libraries it was linked against is corrupt, improperly built, or misconfigured. This error can also be caused by malfunctioning hardware. We will try our best to scrape up some info that will hopefully help diagnose the problem, but since we have already crashed, something is definitely wrong and this may fail. key_buffer_size=16777216 read_buffer_size=131072 max_used_connections=1 max_threads=151 thread_count=1 connection_count=1 It is possible that mysqld could use up to key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 346679 K bytes of memory Hope that's ok; if not, decrease some variables in the equation. Thread pointer: 0x7f1485db3b20 Attempting backtrace. You can use the following information to find out where mysqld died. If you see no messages after this, something went terribly wrong... stack_bottom = 7f1480041e60 thread_stack 0x30000 mysqld(my_print_stacktrace+0x29)[0x7f1483b96459] mysqld(handle_fatal_signal+0x483)[0x7f1483a5c1d3] /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0)[0x7f1482797cb0] /lib/x86_64-linux-gnu/libm.so.6(+0x42e11)[0x7f14821cae11] mysqld(_ZN10SQL_SELECT17test_quick_selectEP3THD6BitmapILj64EEyyb+0x1368)[0x7f1483b26cb8] mysqld(+0x33116a)[0x7f148397916a] mysqld(_ZN4JOIN8optimizeEv+0x558)[0x7f148397d3e8] mysqld(_Z12mysql_selectP3THDPPP4ItemP10TABLE_LISTjR4ListIS1_ES2_jP8st_orderSB_S2_SB_yP13select_resultP18st_select_lex_unitP13st_select_lex+0xdd)[0x7f148397fd7d] mysqld(_Z13handle_selectP3THDP3LEXP13select_resultm+0x17c)[0x7f1483985d2c] mysqld(+0x2f4524)[0x7f148393c524] mysqld(_Z21mysql_execute_commandP3THD+0x293e)[0x7f14839451de] mysqld(_Z11mysql_parseP3THDPcjP12Parser_state+0x10f)[0x7f1483948bef] mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x1365)[0x7f148394a025] mysqld(_Z24do_handle_one_connectionP3THD+0x1bd)[0x7f14839ec7cd] mysqld(handle_one_connection+0x50)[0x7f14839ec830] /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7f148278fe9a] /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f1481eba4bd] Trying to get some variables. Some pointers may be invalid and cause the dump to abort. Query (7f1464004b60): is an invalid pointer Connection ID (thread ID): 1 Status: NOT_KILLED From /var/log/syslog: Sep 21 07:17:01 s16477249 CRON[23855]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Sep 21 07:18:51 s16477249 kernel: [231923.349159] type=1400 audit(1348204731.333:70): apparmor="STATUS" operation="profile_replace" name="/usr/sbin/mysqld" pid=23946 comm="apparmor_parser" Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[23990]: Upgrading MySQL tables if necessary. Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[23993]: /usr/bin/mysql_upgrade: the '--basedir' option is always ignored Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[23993]: Looking for 'mysql' as: /usr/bin/mysql Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[23993]: Looking for 'mysqlcheck' as: /usr/bin/mysqlcheck Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[23993]: This installation of MySQL is already upgraded to 5.5.24, use --force if you still need to run mysql_upgrade Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[24004]: Checking for insecure root accounts. Sep 21 07:18:53 s16477249 /etc/mysql/debian-start[24009]: Triggering myisam-recover for all MyISAM tables I'm using MyISAM tables all over, nothing with InnoDB there. Starting / stopping mysql is done via sudo service mysql start sudo service mysql stop After using google a little bit, I experimented a little bit with timeouts, correct socket path in the /etc/mysql/my.cnf file, but nothing helped. There are some old (from 2008) Gentoo bugs, where re-compiling just solved the problem. I already re-installed mysql via: sudo apt-get remove mysql-server mysql-common sudo apt-get autoremove sudo apt-get install mysql-server without any results. This is the first time I'm running into this problem, and I'm not very experienced with this kind of mysql 'administration'. So mainly, I want to know if anyone of you could help me out please :) Is it a mysql bug? Is something broken in the Ubuntu repositories? Is this one of those misterious 'use-tcp-connection-instead-of-socket-stuff-because-there-are-problems-on-virtualized-machines-with-sockets'-problem? Or am I completly on the wrong way and I just miss-configured something? Remember, phpmyadmin and access to the backend (which uses the database, too) is just fine. Maybe something with Apache? What can I do? Any help is appreciated, so thanks in advance :)

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  • Problem bash completion apt-get 12.10

    - by dadexix86
    I've got an annoying problem with completion and sudo apt-get. To give an example: $ sudo apt-get in[Tab][Tab] in intel_bios_reader includeres intel_disable_clock_gating indicator-multiload intel_dpio_read info intel_dpio_write infobrowser intel_error_decode infocmp intel_forcewaked infokey intel_gpu_abrt infotocap intel_gpu_time inimf intel_gpu_top init intel_gtt init-checkconf intel_l3_parity initctl intel_reg_checker initctl2dot intel_reg_dumper initex intel_reg_read inkscape intel_reg_snapshot inkview intel_reg_write inputattach intel_sprite_on insmod intel_stepping install intel_upload_blit_large install-docs intel_upload_blit_large_gtt installfont-tl intel_upload_blit_large_map install-info intel_upload_blit_small installkernel interdiff --More-- While is working right both with just apt-get or doing it in root: $ apt-get in[Tab]stall $ sudo -i [sudo] password for davide: root@brenna:~# apt-get in[Tab]stall So the problem is using autocompletion after sudo? Not really, because $ sudo apt-[Tab][Tab] apt-add-repository apt-extracttemplates apt-key apt-cache apt-file apt-mark apt-cdrom apt-ftparchive apt-sortpkgs apt-config apt-get Summing up, the problem seems to be using sudo and auto-completion for programs options together. Any good advice for that?

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  • Download Free PowerShell Quick Reference Guides from Microsoft

    - by Akemi Iwaya
    Are you just getting started with learning PowerShell or tired of looking up less frequently used commands? Then this terrific set of PowerShell quick reference guides from Microsoft is just what you need! The first guide focuses on commonly-used Windows PowerShell commands and is available in a single .doc format document. The other guides are available as a set (six files) in .pdf format and focus on: tips, shortcuts, and common operations in Windows PowerShell 3.0, Windows PowerShell Workflow, Windows PowerShell ISE, Windows PowerShell Web Access, Server Manager for Windows Server 2012, WinRM, WMI, and WS-Man. Keep in mind that you can select all the guides or just the ones you need to download for the PowerShell 3.0 set. Windows PowerShell Quick Reference [Microsoft] Windows PowerShell 3.0 and Server Manager Quick Reference Guides [Microsoft] [via The Windows Club here and here]     

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  • How to compile 'stygmorgan-0.29'?

    - by iwan
    I am trying to compile stygmorgan-0.29.tar.bz2 and got these messages: stygmorganui.cxx:7:28: fatal error: stygmicon128.xpm: No such file or directory compilation terminated. make[2]: *** [stygmorganui.o] Error 1 make[2]: Leaving directory `/home/papa/Downloads/stygmorgan-0.29/src' make[1]: *** [all] Error 2 make[1]: Leaving directory `/home/papa/Downloads/stygmorgan-0.29/src' make: *** [all-recursive] Error 1 papa@papa-G31-M7-TE:~/Downloads/stygmorgan-0.29$

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  • Command line mode only -- successful login only brings me back to login screen

    - by seth
    whenever I log in the screen goes black, I see a glimpse of terminal-esque text, and then it brings me back to the log in screen (Ubuntu 12.04). I can enter and log in via the command line. The guest account works find. I think this happened because I edited some Xorg related file trying to make an external monitor work with my laptop. I copy pasted from a forum post so I dont recall the file or what i put in the file. Can't find the forum post again and my bash history wasn't recorded from that session. I tried reinstalling Xorg and ubuntu-desktop, nvidia, resetting any configs I could find... I'm really at a loss of what to do. Here's my /.xsession-errors: /usr/sbin/lightdm-session: 11: /home/seth/.profile: -s: not found Backend : gconf Integration : true Profile : unity Adding plugins Initializing core options...done Initializing composite options...done Initializing opengl options...done Initializing decor options...done Initializing vpswitch options...done Initializing snap options...done Initializing mousepoll options...done Initializing resize options...done Initializing place options...done Initializing move options...done Initializing wall options...done Initializing grid options...done I/O warning : failed to load external entity "/home/seth/.compiz/session/108fa6ea48f8a973b9133850948930576700000017740033" Initializing session options...done Initializing gnomecompat options...done ** Message: applet now removed from the notification area Initializing animation options...done Initializing fade options...done Initializing unitymtgrabhandles options...done Initializing workarounds options...done Initializing scale options...done compiz (expo) - Warn: failed to bind image to texture Initializing expo options...done Initializing ezoom options...done ** Message: using fallback from indicator to GtkStatusIcon (compiz:1846): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed Initializing unityshell options...done Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing. Setting Update "main_menu_key" Setting Update "run_key" Setting Update "launcher_hide_mode" Setting Update "edge_responsiveness" Setting Update "launcher_capture_mouse" ** Message: moving back from GtkStatusIcon to indicator compiz (decor) - Warn: failed to bind pixmap to texture ** (zeitgeist-datahub:2128): WARNING **: zeitgeist-datahub.vala:227: Unable to get name "org.gnome.zeitgeist.datahub" on the bus! failed to create drawable compiz (core) - Warn: glXCreatePixmap failed compiz (core) - Warn: Couldn't bind background pixmap 0x1e00001 to texture compiz (decor) - Warn: failed to bind pixmap to texture ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. compiz (decor) - Warn: failed to bind pixmap to texture compiz (decor) - Warn: failed to bind pixmap to texture ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. ** Message: No keyring secrets found for Sonic.net_356/802-11-wireless-security; asking user. [2348:2352:12678840568:ERROR:gpu_watchdog_thread.cc(231)] The GPU process hung. Terminating after 10000 ms. [2256:2283:14450711755:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14450726175:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14450746028:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14464521342:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14464541249:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14690775186:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14690795231:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14704543843:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14704566717:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14766138587:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14857232694:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14930901403:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14930965542:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14944566814:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:14944592215:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15170929788:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15170947382:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15184585015:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15184605475:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15366189036:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15410983381:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15411569689:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15431632431:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15431674438:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15457304356:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15656020938:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15656042383:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15674651268:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:15674671786:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16052544301:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16057387653:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16157122849:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16157123851:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16157125473:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16157126544:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 [2256:2283:16157129682:ERROR:ssl_client_socket_nss.cc(1542)] handshake with server mail.google.com:443 failed; NSS error code -5938, net_error -107 If anyone can help me out, I'd be forever grateful

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  • Copy or Export Byobu screen?

    - by kmassada
    One of the best things about byobu is the scrollback feature in a given session. I have been working on something, and I have tons of lines in the current scrollback session and I want to copy everything to a file, how to?? According to the screen home page, looks like you can do this? but when I'm done I do a search for all those files, can't find them. C-a h (hardcopy) Write a hardcopy of the current window to the file "hardcopy.n". C-a H (log) Begins/ends logging of the current window to the file "screenlog.n". For the screen commands to work, I have to be in screen mode, I believe, and not sure how to check that? kenneth@dv7:~$ ps -ef | grep byobu kenneth 16245 16173 0 05:18 pts/12 00:00:00 grep --color=auto byobu kenneth 25935 1 0 Dec14 ? 00:21:26 /usr/bin/xfce4-terminal -x byobu-launcher kenneth 25938 25935 0 Dec14 pts/0 00:00:00 tmux -2 -f /usr/share/byobu/profiles/tmuxrc new-session /usr/bin/byobu-shell kenneth 25962 1 1 Dec14 ? 00:37:31 tmux -2 -f /usr/share/byobu/profiles/tmuxrc new-session /usr/bin/byobu-shell kenneth 25963 25962 0 Dec14 pts/1 00:00:00 sh -c /usr/bin/byobu-shell This is from the byoby man page and I absolutely don't know what it does? I tried, it, and looked around, can't tell. Ctrl-a ~ - Save the current window's scrollback buffer there's also enter, copy mode, select with space key, and press enter to copy, I do that, the screen displays gibberish for 10 seconds refreshes, done. cat >> ~/log.output << COMM --paste using ctrl a ] I think-- COMM this confirms the copy paste works, but when I press enter, nothing get saved to that log file, I've checked, I do have write privileges in my home directory. lol the select all, from the xfce4-terminal doesn't go far enough, and scrolling back with the mouse, well won't work, no need to try it, I know byobu buffer doesn't work like that.

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  • Delete directory by referencing symbolic link

    - by Adam
    To set up the question, imagine this scenario: mkdir ~/temp cd ~/ ln -s temp temporary rm -rf temporary, rm -f temporary, and rm temporary each will remove the symbolic link but leave the directory ~/temp/. I have a script where the name of the symbolic link is easily derived but the name of the linked directory is not. Is there a way to remove the directory by referencing the symbolic link, short of parsing the name of the directory from ls -od ~/temporary?

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  • Enable remote VNC from the commandline?

    - by Stefan Lasiewski
    I have one computer running Ubuntu 10.04, and is running Vino, the default VNC server. I have a second Windows box which is running a VNC client, but does not have any X11 capabilities. I am ssh'd into the Ubuntu host from the Windows host, but I forgot to enable VNC access on the Ubuntu host. On the Ubuntu host, is there a way for me to enable VNC connections from the Ubuntu commandline? Update: As @koanhead says below, there is no man page for vino (e.g. man -k vino and info vino return nothing), and vino --help doesn't show any help).

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  • How can I accept the agreement for ttf-mscorefonts-installer?

    - by Magic
    After a recent update, ttf-mscorefonts-installer prompted me to accept its license agreement. For some reason my terminal will not allow me to accept, or for some reason I am pressing the wrong hotkey... I've tried every letter on the keyboard and Enter among others... I'm sure there is a very simple and obvious solution to this. I've also just tried to remove the package completely however the terminal states that due to the package not being correctly installed, I should reinstall the package before removing it. Very frustrating! Essentially, because I cannot successfully install this package, I can't really ever upgrade my system because I always have to end up terminating the terminal with the license agreement (thus the upgrade fails).

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  • Problems with updates

    - by legospace9876
    I can not update Weather Indicator with Update Manager. This is the terminal log: installArchives() failed: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "sr_RS.utf_8_latin" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "sr_RS.utf_8_latin" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "sr_RS.utf_8_latin" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "sr_RS.utf_8_latin" are supported and installed on your system. perl: warning: Falling back to the andard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory Setting up indicator-weather (11.11.28-0ubuntu1.1) ... Installing indicator-specific icons... Installing indicator dconf schema... cp: cannot stat `/usr/share/indicator-weather/indicator-weather.gschema.xml': No such file or directory dpkg: error processing indicator-weather (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: indicator-weather Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1) Setting up indicator-weather (11.11.28-0ubuntu1.1) ... Installing indicator-specific icons... Installing indicator dconf schema... cp: cannot stat `**/usr/share/indicator-weather/indicator-weather.gschema.xml**': No such file or directory dpkg: error processing indicator-weather (--configure): subprocess installed post-installation script returned error exit status 1 The file that I bold really does not exist. How can I solve this problem?

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  • how to run conky from terminal?

    - by Esmail0022
    http://www.unixmen.com/configure-con...t-howto-conky/ in this link there are 11 steps to get conky , i did all of them but the terminal show this message: The program 'conky' can be found in the following packages: * conky-cli * conky-std Try: sudo apt-get install and i try type this but saw this message: ismail@ismail-ASUS:~$ sudo apt-get install conky [sudo] password for ismail: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? Can you help me?

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  • How can I run sudo gedit as gksu gedit

    - by SimplySimon
    I'm looking into ways of automatically loading Gedit as gksu gedit when I enter sudo gedit by mistake? I have found that I have made a number of files unreachable by using gedit and I have only just found out why! ACHIEVED SO FAR I have written a script which will make an alias so that if I type in sudo <application> it can automatically convert that to gksu <application> but I want to make this alias stick, so that I don't have to run the script every time I boot the computer. Is there a config file I can edit or should I run this script as a start up script (which would be inconvenient!)?

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  • Be able to create edit and move files to and from /var/www

    - by Ryan Murphy
    I have installed lamp on Ubuntu 12.04. I try to access /var/www but it doesn't allow me to do anything as it says I don't have permissions. I have tried: 1. gksudo nautilus - which works but its very inconvenient way of doing things. 2. sudo adduser ryan www-data sudo chown -R www-data:www-data /var/www sudo chmod g+rw /var/www The above didn't work. I have googled and searched this site for a solution, but all the existing possible solutions have not worked.

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  • Error while installing netbeans

    - by Hridesh
    I tried to install NetBeans 7.2 from a downloaded .sh file, but experienced problems. Here's text from the Terminal, which shows what I did and what happened: hridesh@ubuntu:~$ cd Desktop/ hridesh@ubuntu:~/Desktop$ cd full\ netbeans\ 7.2\ for\ linux\ in\ .sh\ format/ hridesh@ubuntu:~/Desktop/full netbeans 7.2 for linux in .sh format$ chmod +x netbeans-7.1.2-ml-linux.sh hridesh@ubuntu:~/Desktop/full netbeans 7.2 for linux in .sh format$ ./netbeans-7.1.2-ml-linux.sh Configuring the installer... Searching for JVM on the system... Extracting installation data... Installer file /home/hridesh/Desktop/full seems to be corrupted Why does the message Installer file /home/hridesh/Desktop/full seems to be corrupted appear? Is this file actually corrupted or something else going wrong?

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  • How to speed up this simple mysql query?

    - by Jim Thio
    The query is simple: SELECT TB.ID, TB.Latitude, TB.Longitude, 111151.29341326*SQRT(pow(-6.185-TB.Latitude,2)+pow(106.773-TB.Longitude,2)*cos(-6.185*0.017453292519943)*cos(TB.Latitude*0.017453292519943)) AS Distance FROM `tablebusiness` AS TB WHERE -6.2767668133836 < TB.Latitude AND TB.Latitude < -6.0932331866164 AND FoursquarePeopleCount >5 AND 106.68123318662 < TB.Longitude AND TB.Longitude <106.86476681338 ORDER BY Distance See, we just look at all business within a rectangle. 1.6 million rows. Within that small rectangle there are only 67,565 businesses. The structure of the table is 1 ID varchar(250) utf8_unicode_ci No None Change Change Drop Drop More Show more actions 2 Email varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 3 InBuildingAddress varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 4 Price int(10) Yes NULL Change Change Drop Drop More Show more actions 5 Street varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 6 Title varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 7 Website varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 8 Zip varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 9 Rating Star double Yes NULL Change Change Drop Drop More Show more actions 10 Rating Weight double Yes NULL Change Change Drop Drop More Show more actions 11 Latitude double Yes NULL Change Change Drop Drop More Show more actions 12 Longitude double Yes NULL Change Change Drop Drop More Show more actions 13 Building varchar(200) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 14 City varchar(100) utf8_unicode_ci No None Change Change Drop Drop More Show more actions 15 OpeningHour varchar(400) utf8_unicode_ci Yes NULL Change Change Drop Drop More Show more actions 16 TimeStamp timestamp on update CURRENT_TIMESTAMP No CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP Change Change Drop Drop More Show more actions 17 CountViews int(11) Yes NULL Change Change Drop Drop More Show more actions The indexes are: Edit Edit Drop Drop PRIMARY BTREE Yes No ID 1965990 A Edit Edit Drop Drop City BTREE No No City 131066 A Edit Edit Drop Drop Building BTREE No No Building 21 A YES Edit Edit Drop Drop OpeningHour BTREE No No OpeningHour (255) 21 A YES Edit Edit Drop Drop Email BTREE No No Email (255) 21 A YES Edit Edit Drop Drop InBuildingAddress BTREE No No InBuildingAddress (255) 21 A YES Edit Edit Drop Drop Price BTREE No No Price 21 A YES Edit Edit Drop Drop Street BTREE No No Street (255) 982995 A YES Edit Edit Drop Drop Title BTREE No No Title (255) 1965990 A YES Edit Edit Drop Drop Website BTREE No No Website (255) 491497 A YES Edit Edit Drop Drop Zip BTREE No No Zip (255) 178726 A YES Edit Edit Drop Drop Rating Star BTREE No No Rating Star 21 A YES Edit Edit Drop Drop Rating Weight BTREE No No Rating Weight 21 A YES Edit Edit Drop Drop Latitude BTREE No No Latitude 1965990 A YES Edit Edit Drop Drop Longitude BTREE No No Longitude 1965990 A YES The query took forever. I think there has to be something wrong there. Showing rows 0 - 29 ( 67,565 total, Query took 12.4767 sec)

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  • Ubuntu Server available updates

    - by Rapture
    In Ubuntu 11.04 Server when I would log in via ssh it would tell me how many packages are available for updating in the welcome message. After upgrading to 11.10 I no longer get that information. Is there a package I need to install or a config file that needs changing? 11.04 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic x86_64) * Documentation: https://help.ubuntu.com/ 32 packages can be updated. 8 updates are security updates. Last login: Mon Nov 21 16:19:01 2011 from han-solo.local 11.10 output: Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-server x86_64) * Documentation: https://help.ubuntu.com/11.10/serverguide/C No mail. Last login: Tue Nov 22 19:07:19 2011 from han-solo.local

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  • How to inhibit suspend temporarily?

    - by Zorn
    I have searched around a bit for this and can't seem to find anything helpful. I have my PC running Ubuntu 12.10 set up to suspend after 30 minutes of inactivity. I don't want to change that, it works great most of the time. What I do want to do is disable the automatic suspend if a particular application is running. How can I do this? The closest thing I've found so far is to add a shell script in /usr/lib/pm-utils/sleep.d which checks if the application is running and returns 1 to indicate that suspend should be prevented. But it looks like the system then gives up on suspending automatically, instead of trying again after another 30 minutes. (As far as I can tell, if I move the mouse, that restarts the timer again.) It's quite likely the application will finish after a couple of hours, and I'd rather my PC then suspended automatically if I'm not using it at that point. (So I don't want to add a call to pm-suspend when the application finishes.) Is this possible? Any advice would be appreciated. Cheers. EDIT: As I noted in one of the comments below, what I actually wanted was to inhibit suspend when my PC was serving files over NFS; I just wanted to focus on the "suspend" part of the question because I already had an idea how to solve the NFS part. Using the 'xdotool' idea given in one of the answers, I have come up with the following script which I run from cron every few minutes. It's not ideal because it stops the screensaver kicking in as well, but it does work. I need to have a look at why 'caffeine' doesn't correctly re-enable suspend later on, then I could probably do better. Anyway, this does seem to work, so I'm including it here in case anyone else is interested. #!/bin/bash # If the output of this function changes between two successive runs of this # script, we inhibit auto-suspend. function check_activity() { /usr/sbin/nfsstat --server --list } # Prevent the automatic suspend from kicking in. function inhibit_suspend() { # Slightly jiggle the mouse pointer about; we do a small step and # reverse step to try to stop this being annoying to anyone using the # PC. TODO: This isn't ideal, apart from being a bit hacky it stops # the screensaver kicking in as well, when all we want is to stop # the PC suspending. Can 'caffeine' help? export DISPLAY=:0.0 xdotool mousemove_relative --sync -- 1 1 xdotool mousemove_relative --sync -- -1 -1 } LOG="$HOME/log/nfs-suspend-blocker.log" ACTIVITYFILE1="$HOME/tmp/nfs-suspend-blocker.current" ACTIVITYFILE2="$HOME/tmp/nfs-suspend-blocker.previous" echo "Started run at $(date)" >> "$LOG" if [ ! -f "$ACTIVITYFILE1" ]; then check_activity > "$ACTIVITYFILE1" exit 0; fi /bin/mv "$ACTIVITYFILE1" "$ACTIVITYFILE2" check_activity > "$ACTIVITYFILE1" if cmp --quiet "$ACTIVITYFILE1" "$ACTIVITYFILE2"; then echo "No activity detected since last run" >> "$LOG" else echo "Activity detected since last run; inhibiting suspend" >> "$LOG" inhibit_suspend fi

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  • SQL SERVER – Weekly Series – Memory Lane – #039

    - by Pinal Dave
    Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. 2007 FQL – Facebook Query Language Facebook list following advantages of FQL: Condensed XML reduces bandwidth and parsing costs. More complex requests can reduce the number of requests necessary. Provides a single consistent, unified interface for all of your data. It’s fun! UDF – Get the Day of the Week Function The day of the week can be retrieved in SQL Server by using the DatePart function. The value returned by the function is between 1 (Sunday) and 7 (Saturday). To convert this to a string representing the day of the week, use a CASE statement. UDF – Function to Get Previous And Next Work Day – Exclude Saturday and Sunday While reading ColdFusion blog of Ben Nadel Getting the Previous Day In ColdFusion, Excluding Saturday And Sunday, I realize that I use similar function on my SQL Server Database. This function excludes the Weekends (Saturday and Sunday), and it gets previous as well as next work day. Complete Series of SQL Server Interview Questions and Answers Data Warehousing Interview Questions and Answers – Introduction Data Warehousing Interview Questions and Answers – Part 1 Data Warehousing Interview Questions and Answers – Part 2 Data Warehousing Interview Questions and Answers – Part 3 Data Warehousing Interview Questions and Answers Complete List Download 2008 Introduction to Log Viewer In SQL Server all the windows event logs can be seen along with SQL Server logs. Interface for all the logs is same and can be launched from the same place. This log can be exported and filtered as well. DBCC SHRINKFILE Takes Long Time to Run If you are DBA who are involved with Database Maintenance and file group maintenance, you must have experience that many times DBCC SHRINKFILE operations takes a long time but any other operations with Database are relatively quicker. mssqlsystemresource – Resource Database The purpose of resource database is to facilitates upgrading to the new version of SQL Server without any hassle. In previous versions whenever version of SQL Server was upgraded all the previous version system objects needs to be dropped and new version system objects to be created. 2009 Puzzle – Write Script to Generate Primary Key and Foreign Key In SQL Server Management Studio (SSMS), there is no option to script all the keys. If one is required to script keys they will have to manually script each key one at a time. If database has many tables, generating one key at a time can be a very intricate task. I want to throw a question to all of you if any of you have scripts for the same purpose. Maximizing View of SQL Server Management Studio – Full Screen – New Screen I had explained the following two different methods: 1) Open Results in Separate Tab - This is a very interesting method as result pan shows up in a different tab instead of the splitting screen horizontally. 2) Open SSMS in Full Screen - This works always and to its best. Not many people are aware of this method; hence, very few people use it to enhance performance. 2010 Find Queries using Parallelism from Cached Plan T-SQL script gets all the queries and their execution plan where parallelism operations are kicked up. Pay attention there is TOP 10 is used, if you have lots of transactional operations, I suggest that you change TOP 10 to TOP 50 This is the list of the all the articles in the series of computed columns. SQL SERVER – Computed Column – PERSISTED and Storage This article talks about how computed columns are created and why they take more storage space than before. SQL SERVER – Computed Column – PERSISTED and Performance This article talks about how PERSISTED columns give better performance than non-persisted columns. SQL SERVER – Computed Column – PERSISTED and Performance – Part 2 This article talks about how non-persisted columns give better performance than PERSISTED columns. SQL SERVER – Computed Column and Performance – Part 3 This article talks about how Index improves the performance of Computed Columns. SQL SERVER – Computed Column – PERSISTED and Storage – Part 2 This article talks about how creating index on computed column does not grow the row length of table. SQL SERVER – Computed Columns – Index and Performance This article summarized all the articles related to computed columns. 2011 SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Data Warehousing Concepts – Day 21 of 31 What is Data Warehousing? What is Business Intelligence (BI)? What is a Dimension Table? What is Dimensional Modeling? What is a Fact Table? What are the Fundamental Stages of Data Warehousing? What are the Different Methods of Loading Dimension tables? Describes the Foreign Key Columns in Fact Table and Dimension Table? What is Data Mining? What is the Difference between a View and a Materialized View? SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Data Warehousing Concepts – Day 22 of 31 What is OLTP? What is OLAP? What is the Difference between OLTP and OLAP? What is ODS? What is ER Diagram? SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Data Warehousing Concepts – Day 23 of 31 What is ETL? What is VLDB? Is OLTP Database is Design Optimal for Data Warehouse? If denormalizing improves Data Warehouse Processes, then why is the Fact Table is in the Normal Form? What are Lookup Tables? What are Aggregate Tables? What is Real-Time Data-Warehousing? What are Conformed Dimensions? What is a Conformed Fact? How do you Load the Time Dimension? What is a Level of Granularity of a Fact Table? What are Non-Additive Facts? What is a Factless Facts Table? What are Slowly Changing Dimensions (SCD)? SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Data Warehousing Concepts – Day 24 of 31 What is Hybrid Slowly Changing Dimension? What is BUS Schema? What is a Star Schema? What Snow Flake Schema? Differences between the Star and Snowflake Schema? What is Difference between ER Modeling and Dimensional Modeling? What is Degenerate Dimension Table? Why is Data Modeling Important? What is a Surrogate Key? What is Junk Dimension? What is a Data Mart? What is the Difference between OLAP and Data Warehouse? What is a Cube and Linked Cube with Reference to Data Warehouse? What is Snapshot with Reference to Data Warehouse? What is Active Data Warehousing? What is the Difference between Data Warehousing and Business Intelligence? What is MDS? Explain the Paradigm of Bill Inmon and Ralph Kimball. SQL SERVER – Azure Interview Questions and Answers – Guest Post by Paras Doshi – Day 25 of 31 Paras Doshi has submitted 21 interesting question and answers for SQL Azure. 1.What is SQL Azure? 2.What is cloud computing? 3.How is SQL Azure different than SQL server? 4.How many replicas are maintained for each SQL Azure database? 5.How can we migrate from SQL server to SQL Azure? 6.Which tools are available to manage SQL Azure databases and servers? 7.Tell me something about security and SQL Azure. 8.What is SQL Azure Firewall? 9.What is the difference between web edition and business edition? 10.How do we synchronize On Premise SQL server with SQL Azure? 11.How do we Backup SQL Azure Data? 12.What is the current pricing model of SQL Azure? 13.What is the current limitation of the size of SQL Azure DB? 14.How do you handle datasets larger than 50 GB? 15.What happens when the SQL Azure database reaches Max Size? 16.How many databases can we create in a single server? 17.How many servers can we create in a single subscription? 18.How do you improve the performance of a SQL Azure Database? 19.What is code near application topology? 20.What were the latest updates to SQL Azure service? 21.When does a workload on SQL Azure get throttled? SQL SERVER – Interview Questions and Answers – Guest Post by Malathi Mahadevan – Day 26 of 31 Malachi had asked a simple question which has several answers. Each answer makes you think and ponder about the reality of the IT world. Look at the simple question – ‘What is the toughest challenge you have faced in your present job and how did you handle it’? and its various answers. Each answer has its own story. SQL SERVER – Interview Questions and Answers – Guest Post by Rick Morelan – Day 27 of 31 Rick Morelan of Joes2Pros has written an excellent blog post on the subject how to find top N values. Most people are fully aware of how the TOP keyword works with a SELECT statement. After years preparing so many students to pass the SQL Certification I noticed they were pretty well prepared for job interviews too. Yes, they would do well in the interview but not great. There seemed to be a few questions that would come up repeatedly for almost everyone. Rick addresses similar questions in his lucid writing skills. 2012 Observation of Top with Index and Order of Resultset SQL Server has lots of things to learn and share. It is amazing to see how people evaluate and understand different techniques and styles differently when implementing. The real reason may be absolutely different but we may blame something totally different for the incorrect results. Read the blog post to learn more. How do I Record Video and Webcast How to Convert Hex to Decimal or INT Earlier I asked regarding a question about how to convert Hex to Decimal. I promised that I will post an answer with Due Credit to the author but never got around to post a blog post around it. Read the original post over here SQL SERVER – Question – How to Convert Hex to Decimal. Query to Get Unique Distinct Data Based on Condition – Eliminate Duplicate Data from Resultset The natural reaction will be to suggest DISTINCT or GROUP BY. However, not all the questions can be solved by DISTINCT or GROUP BY. Let us see the following example, where a user wanted only latest records to be displayed. Let us see the example to understand further. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Memory Lane, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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