Comments on: Slow Query Log analyzes tools

By: Analysing Mysql Slow Query Log « Frey-IT

Analysing Mysql Slow Query Log « Frey-IT — Tue, 29 Sep 2009 09:51:52 +0000

[...] good site to start on this topic is always the Mysql Performance Blog . In the comments-section of this entry, I found links to two different scripts analyzing the slow-query log. (Also see the Mysql [...]

By: » MySQL Slow Query Log Analysis MaisonBisson.com

» MySQL Slow Query Log Analysis MaisonBisson.com — Tue, 17 Mar 2009 16:17:34 +0000

[...] at MySQL Performance Blog pointed out this sweet perl script to analyze MySQL’s slow query logs. (This is supposedly a PHP [...]

By: Claudio Nanni

Claudio Nanni — Fri, 20 Feb 2009 10:44:13 +0000

Thanks for the slow query log parser tool,
I have easily found the expensive queries and created index accordingly, nice and easy!
I did not patch the server anyway(production)

The problem I have is to create an index on a 7gb InnoDB table , single .ibd file, that locks the table WRITE for
a hour that is not applicable for a production server, is there any trick?
I have an idea that can change the lock from WRITE to READ.

In the lowest load window (2:00-4:00 am)

[1] Lock the table READ to prevent updates and make the new index consistent
[2] create like a new empty table and add the new index
[3] select into the new table from the big table
[4] lock write tables
[5] swap tables

do you think is a good strategy?

Thank You!

Claudio Nanni

By: Vadim

Vadim — Tue, 25 Nov 2008 05:27:48 +0000

Eric,

you may want to make mysql_slow_log_filter executable:

chmod a+x mysql_slow_log_filter

By: Eric

Eric — Wed, 19 Nov 2008 09:05:19 +0000

Hello,
The function of mysql slow log filter is more attractive,so I just installed Fedora 9 and MySQL 5.1.29. Unfortunately, I am newbie in Linux and Perl. Although I have installed Perl5.10 by yum install,when I download the mysql_slow_log_filter file and issue the command “tail -f mysql-slow.log | mysql_slow_log_filter -T 0.5 -R 1000″, the result is always “bash: mysql_slow_log_filter: command not found”. How can I install it? Thanks.

By: peter

peter — Mon, 17 Nov 2008 02:29:33 +0000

Please check the current releases and patches for them at:
http://www.percona.com/percona-lab.html

If you need patch for particular version we can do backport on consulting basics.

By: ligtv izle

ligtv izle — Sun, 16 Nov 2008 19:15:44 +0000

Hi,

Is it possible to update the patch to 5.0.61? Thanks

By: Slow Query Log Analyzes Tools

Slow Query Log Analyzes Tools — Thu, 09 Oct 2008 18:33:11 +0000

[...] article from MySQL Performance Blog explains how to log slow queries and how to identify queries, which do [...]

By: peter

peter — Sun, 31 Aug 2008 18:08:08 +0000

There is patch for 5.0.62
http://www.mysqlperformanceblog.com/mysql-patches/

We also have patch in work for 5.0.67

If you need patch for 5.0.61 or any other version we can do backport on consulting basics.

By: Ilkka

Ilkka — Sun, 31 Aug 2008 01:33:33 +0000

Hi,

Is it possible to update the patch to 5.0.61? Thanks.