Christian Lorenz [
http://community.jboss.org/people/ChrLorenz] created the discussion
"stop a running/hanging MDB/EJB instance"
To view the discussion, visit:
http://community.jboss.org/message/560636#560636
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Hi!
I'm developing an application which must download some files via HTTP/FTP. This is
done by an MDB, which uses a specific client for the protocols (e.g. Java URLConnection,
etc.). As this downloads are triggered periodically via JBoss TimerService I have a
problem, if the connection hangs. Because in this case I get no Exception, the MDB will
simply hang infinitely.
*Is there any way to stop a running MDB instance from outside (at best automatically by
JBoss)?* Because I'm using the "@Pool"-annotation with "maxSize=5"
to reduce the number of concurrent network connections, I'm out of available instances
if some MDBs hang.
I've tried some ideas so far, but without success:
* "@TransactionTimeout(...)" respectively
"@ActivationConfigProperty(propertyName = "transactionTimeout",
propertyValue = "...")": This stops the transaction indeed, but the MDB is
still running and not released/destroyed.
* "@Pool(timeout=...)": But this only rejects new requests from execution.
I'm using EJB3 on JBoss 5.1.0 AS.
Thanks in advance!
CHRISTIAN
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