[JBoss-user] [Performance Tuning] - Re: Strange behavior: slow JDBC queries

2005-04-21 Thread rafcio
[EMAIL PROTECTED] wrote : How did you fix it?

Now I found that:

In MySQL 4.0, the query cache works only with autocommit enabled. This 
restriction is removed in MySQL 4.1.1 and up.

And this is our problem.

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[JBoss-user] [Performance Tuning] - Re: Strange behavior: slow JDBC queries

2005-04-19 Thread rafcio
[EMAIL PROTECTED] wrote : How did you fix it?

It wasn't JBoss problem. After switch to MySQL master/slave the result sets of 
some queries wasn't sent to client but write to the tmp area of MySQL. We 
increase only the value of 'tmp_table_size' and we get better performance.


Regards,
Rafal

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[JBoss-user] [Performance Tuning] - Re: Strange behavior: slow JDBC queries

2005-04-18 Thread rafcio
fixed!

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[JBoss-user] [Performance Tuning] - Re: Strange behavior: slow JDBC queries

2005-04-18 Thread [EMAIL PROTECTED]
How did you fix it?

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