Re: Mysql and Tomcat 5.5 strange performance
Posted by: Mark Matthews
Date: December 20, 2004 10:11PM


Are you using InnoDB tables? Do you keep an 'open' transaction on the 'refresh' page (i.e. no commit/rollback)? If so, since InnoDB runs by default in REPEATABLE_READ isolation level, you'll _never_ see the updates done by other threads/connections from your 'refresh' page until you commit/rollback _after_ the other transactions complete.

The JDBC driver itself does no caching behind scenes, it only delivers what's in the database itself.

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Re: Mysql and Tomcat 5.5 strange performance
December 20, 2004 10:11PM

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