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From: "Caldarale, Charles R" <Chuck.Caldarale@unisys.com>
To: Tomcat Users List <users@tomcat.apache.org>
Date: Mon, 22 Jun 2009 16:00:55 -0500
Subject: RE: dbcp pool evictor deadlock?
Thread-Topic: dbcp pool evictor deadlock?
Thread-Index: AcnzeOPHgjykSbtVRliiLhg67W01rwAArSQA
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 <0AAE5AB84B013E45A7B61CB66943C172294795F0D4@USEA-EXCH7.na.uis.unisys.com>
References: <h1oprn$ur4$1@ger.gmane.org>
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> From: news [mailto:news@ger.gmane.org] On Behalf Of Eric B.
> Subject: dbcp pool evictor deadlock?
>=20
> THREAD 1:
> Name: Timer-1
> State: BLOCKED on
> org.apache.tomcat.dbcp.dbcp.PoolableConnection@1e667871
> owned by: scheduling.QuartzInternal_Worker-0
> Total blocked: 1  Total waited: 15,342
>=20
> Stack trace:
> org.apache.tomcat.dbcp.dbcp.AbandonedTrace.addTrace(AbandonedTrace.java:1=
75)

Assuming this version of Tomcat is using commons-dbcp 1.2.2, there's someth=
ing seriously wrong here.  The synchronized block at the above line is for =
an AbandonedTrace object, not a PoolableConnection.

This is beginning to look like a broken JVM or broken hardware.  Want to te=
ll us what you're using for those (and the OS, while you're at it)?

 - Chuck


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