[jboss-user] [Installation, Configuration & DEPLOYMENT] - connection pool configuration ?
do-not-reply at jboss.com
Fri Feb 29 13:24:00 EST 2008
I have a question regarding the interaction between <min-pool-size/> and <idle-timeout-minutes/> properties.
The JBossJCAPooling documentation says:
anonymous wrote : Should closing idle connections cause the pool to fall below the min-pool-size, new/fresh connections are created.
Doesn't this create unnecessary churning of connections (out w/ idle in w/ new)?
Here's my situation:
I have these properties set at 10 for min-pool-size and 2 for idle-timeout-minutes. On average, I see 15 connections from each app server to the db server.
This is what I'm seeing on my app servers: all db connections seem to get closed within about 5 minutes. New connections are created, about 4 per minute.
If I understand properly the MRU strategy used by the connection pool manager, then I do not understand why I am seeing this behavior.
Any help/thoughts would be greatly appreciated!
Mike L. (aka patzerbud)
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