commons-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mark Thomas <>
Subject Re: [DBCP] performance and scalability enhancements
Date Tue, 24 Feb 2009 09:42:36 GMT
Todd Carmichael wrote:
> Our site is using DBCP in several different applications.  Our site has
> high scalability requirements and some areas of DBCP and Pooling have
> needed tuning in order to scale.   I am soliciting feedback on these
> changes.  If the projects DBCP/POOL would/could make use of these
> changes and to present a problem that we still having.
> 1) A single eviction thread for cleanup of stale connections.  Our site
> can have hundreds of database connection pools.  An evictor thread per
> connection pool puts a strain on the OS.
> 2) testOnBorrow causes far too much overhead on our site and limits
> performance.  We have implemented a testOnBorrow after a X milliseconds.
> Meaning, it will only test the connection if the connection has NOT been
> tested for X milliseconds.

Both enhancements sound useful. Can you create a Jira entry and attach a patch?



To unsubscribe, e-mail:
For additional commands, e-mail:

View raw message