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From Rik Gruwez <rik.gru...@admb.be>
Subject Lots of XA transactions going on for no apparent reason
Date Tue, 07 Apr 2009 13:47:20 GMT

I have setup a transactional message listener in Spring, using ActiveMQ and
Atomikos for JTA. ActiveMQ uses MySQL for persistency, no journaling is
done. I noticed that the ID field in the activemq_msgs table increases for
no apparent reason, without messages being posted on the queues. I enabled
debug logging for ActiveMQ and noticed this:

DEBUG [apache.activemq.TransactionContext] Start:
172.16.203.64.tm0045200059172.16.203.64.tm455
DEBUG [apache.activemq.TransactionContext] Started XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435323030303539:3137322e31362e3230332e36342e746d343535
DEBUG [apache.activemq.TransactionContext] End:
172.16.203.64.tm0045200059172.16.203.64.tm455
DEBUG [apache.activemq.TransactionContext] Ended XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435323030303539:3137322e31362e3230332e36342e746d343535
DEBUG [apache.activemq.TransactionContext] Commit:
172.16.203.64.tm0045200059172.16.203.64.tm455
DEBUG [activemq.transaction.XATransaction] XA Transaction commit:
XID:1096044365:3137322e31362e3230332e36342e746d30303435323030303539:3137322e31362e3230332e36342e746d343535
DEBUG [apache.activemq.TransactionContext] Start:
172.16.203.64.tm0045300059172.16.203.64.tm456
DEBUG [apache.activemq.TransactionContext] Started XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435333030303539:3137322e31362e3230332e36342e746d343536
DEBUG [apache.activemq.TransactionContext] End:
172.16.203.64.tm0045300059172.16.203.64.tm456
DEBUG [apache.activemq.TransactionContext] Ended XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435333030303539:3137322e31362e3230332e36342e746d343536
DEBUG [apache.activemq.TransactionContext] Commit:
172.16.203.64.tm0045300059172.16.203.64.tm456
DEBUG [activemq.transaction.XATransaction] XA Transaction commit:
XID:1096044365:3137322e31362e3230332e36342e746d30303435333030303539:3137322e31362e3230332e36342e746d343536
DEBUG [apache.activemq.TransactionContext] Start:
172.16.203.64.tm0045400059172.16.203.64.tm457
DEBUG [apache.activemq.TransactionContext] Started XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435343030303539:3137322e31362e3230332e36342e746d343537
DEBUG [apache.activemq.TransactionContext] End:
172.16.203.64.tm0045400059172.16.203.64.tm457
DEBUG [apache.activemq.TransactionContext] Ended XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435343030303539:3137322e31362e3230332e36342e746d343537
DEBUG [apache.activemq.TransactionContext] Commit:
172.16.203.64.tm0045400059172.16.203.64.tm457
DEBUG [activemq.transaction.XATransaction] XA Transaction commit:
XID:1096044365:3137322e31362e3230332e36342e746d30303435343030303539:3137322e31362e3230332e36342e746d343537
DEBUG [apache.activemq.TransactionContext] Start:
172.16.203.64.tm0045500059172.16.203.64.tm458
DEBUG [apache.activemq.TransactionContext] Started XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435353030303539:3137322e31362e3230332e36342e746d343538
DEBUG [apache.activemq.TransactionContext] End:
172.16.203.64.tm0045500059172.16.203.64.tm458
DEBUG [apache.activemq.TransactionContext] Ended XA transaction:
XID:1096044365:3137322e31362e3230332e36342e746d30303435353030303539:3137322e31362e3230332e36342e746d343538
DEBUG [apache.activemq.TransactionContext] Commit:
172.16.203.64.tm0045500059172.16.203.64.tm458
DEBUG [activemq.transaction.XATransaction] XA Transaction commit:
XID:1096044365:3137322e31362e3230332e36342e746d30303435353030303539:3137322e31362e3230332e36342e746d343538

And this keeps going on. Any idea what is causing this?

Regards,
Rik Gruwez

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