[rt-users] RT 3.6.4 poor query performance

Toby Darling darling at ccdc.cam.ac.uk
Thu Mar 13 09:45:42 EDT 2008


Let mysqltuner (http://rackerhacker.com/mysqltuner/) have a look at your 
database. Lots of useful stuff. We went from 180 second full text 
queries, to 7 seconds, just be tweaking innodb_buffer_pool_size.

Cheers
Toby

Richard Ellis wrote:
> Hi All,
> 
> We have recently updated our RT instance from 3.4.6 running on Solaris 9 
> to a new server running Solaris 10 and 3.6.4.
> 
> Everything works perfectly and we have removed all of the customisations 
> that we used to use for a virtually vanilla 3.6.4 install. However, when 
> opening the Query Builder page, performance slows to a massive extent. 
> Average page load is under 1 second, but performing any action in Query 
> Builder averages 400 seconds.
> 
> I thought it was the database so upgraded mysql from 5.0.34 to 5.0.51a, 
> but that made no difference. I then upgraded DBIx::SearchBuilder to the 
> latest version and DBD::mysql but it is still as bad. Even upgraded 
> every single perl module to latest and restarted everything, but still 
> as bad.
> 
> mysqlcheck rt3 says everything is ok.
> 
> There are only 10,000 tickets so it shouldn't be a volume problem.
> 
> Running on perl 5.8.8.
> 
> Anyone any ideas?
> 
> Richard
> 
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