Comments on: Logging your MySQL command line client sessions http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/ Everything about MySQL Performance Sat, 21 Nov 2009 05:23:57 -0800 http://wordpress.org/?v=2.8.4 hourly 1 By: jeffatrackaid http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-325196 jeffatrackaid Wed, 09 Jul 2008 16:04:00 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-325196 No problem. I think screen is an oft-overlooked tool. Not related to logging, but for one client we have an admin box with mytop installed. They have 5 database servers in a master/slave farm setup. I have aliases setup to launch mytop and have it connect to each system. (e.g. mytopdb1 connects mytop to db1). I do this from inside screen and then can quickly toggle through mytop output on all boxes. There are probably cleaner ways to do this but I've found it handy to quickly check how queries are spreading over the slave pool as the load balancing is controlled on the application side. No problem. I think screen is an oft-overlooked tool. Not related to logging, but for one client we have an admin box with mytop installed. They have 5 database servers in a master/slave farm setup. I have aliases setup to launch mytop and have it connect to each system. (e.g. mytopdb1 connects mytop to db1). I do this from inside screen and then can quickly toggle through mytop output on all boxes.

There are probably cleaner ways to do this but I’ve found it handy to quickly check how queries are spreading over the slave pool as the load balancing is controlled on the application side.

]]> By: peter http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-325194 peter Wed, 09 Jul 2008 15:36:23 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-325194 Thanks Jeff Thanks Jeff

]]> By: jeffatrackaid http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-325191 jeffatrackaid Wed, 09 Jul 2008 15:22:05 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-325191 I almost always use screen when diagnosing server issues or running OS updates. I can have a mytop, top and other tools running and toggle between them easily. As mentioned, screen has a logging option tool. I wrote a screen tutorial some time ago: http://www.rackaid.com/resources/linux-tutorials/general-tutorials/linux-screen.cfm I almost always use screen when diagnosing server issues or running OS updates.

I can have a mytop, top and other tools running and toggle between them easily. As mentioned, screen has a logging option tool.

I wrote a screen tutorial some time ago:
http://www.rackaid.com/resources/linux-tutorials/general-tutorials/linux-screen.cfm

]]> By: James Cohen http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-325123 James Cohen Wed, 09 Jul 2008 08:07:34 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-325123 You can also access this from the MySQL client prompt: mysql> tee /tmp/session_log_file.txt Logging to file '/tmp/session_log_file.txt mysql> notee Outfile disabled. You can also access this from the MySQL client prompt:

mysql> tee /tmp/session_log_file.txt
Logging to file ‘/tmp/session_log_file.txt
mysql> notee
Outfile disabled.

]]> By: peter http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-324978 peter Tue, 08 Jul 2008 21:46:34 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-324978 Right. SCREEN is the tool for many needs :) Right. SCREEN is the tool for many needs :)

]]> By: Baron Schwartz http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-324965 Baron Schwartz Tue, 08 Jul 2008 21:16:45 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-324965 Another way to do this is to use screen. CTRL-A H will log the screen to a file. Another way to do this is to use screen. CTRL-A H will log the screen to a file.

]]> By: Tom Krouper http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-324944 Tom Krouper Tue, 08 Jul 2008 20:46:38 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-324944 I was thinking it was another MySQL tool. Perfect, thanks. I was thinking it was another MySQL tool. Perfect, thanks.

]]> By: peter http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-324942 peter Tue, 08 Jul 2008 20:31:56 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-324942 Well "man script" does it on my Linux distribution if you do not have it installed you can check some online man pages to see if it will work for you http://unixhelp.ed.ac.uk/CGI/man-cgi?script Well “man script” does it on my Linux distribution if you do not have it installed you can check some online man pages to see if it will work for you

http://unixhelp.ed.ac.uk/CGI/man-cgi?script

]]> By: Tom Krouper http://www.mysqlperformanceblog.com/2008/07/08/logging-your-mysql-command-line-client-sessions/comment-page-1/#comment-324939 Tom Krouper Tue, 08 Jul 2008 20:21:47 +0000 http://www.mysqlperformanceblog.com/?p=434#comment-324939 I've heard of (and overlooked) the tee mysql client option. I've never heard of the "script" tool. Could you please let me know where I would find the "script" tool? Thanks, Tom PS: I think I know a lot about MySQL, then I find another thing I'd never heard of. :-) I’ve heard of (and overlooked) the tee mysql client option. I’ve never heard of the “script” tool. Could you please let me know where I would find the “script” tool?

Thanks,
Tom

PS: I think I know a lot about MySQL, then I find another thing I’d never heard of. :-)

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