[Bug 55977] Jdbc pool keepalive flooding

[bu...@apache.org]

https://issues.apache.org/bugzilla/show_bug.cgi?id=55977

Sebb <se...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #1 from Sebb <se...@apache.org> ---
(In reply to Luca from comment #0)
> ... 
> Under heavy load the Oracle DB is flooded by keepalive queries that cause
> unexpected cpu utilization and latencies (even with dual table). 
> 
> I tried the latest jars from excalibur (datasource and pool) and the problem
> seem to me that is solved:
> - excalibur-datasource-1.2.0.jar

Did you try datasource 2.1 ?

> - excalibur-pool-api-2.1.jar

I don't think you need the api jar.

> - excalibur-pool-impl-2.1.jar
> - excalibur-pool-instrumented-2.1.jar

We currently use the following:

excalibur-datasource.version = 1.1.1
excalibur-instrument.version = 1.0
excalibur-logger.version    = 1.1
excalibur-pool.version      = 1.2

Which of these did you keep?

> Hope this helps to solve the problem, thanks.

Thanks very much, useful to know.

> Luca

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