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Posted to server-dev@james.apache.org by "ouvtam (Jira)" <se...@james.apache.org> on 2022/11/02 23:19:00 UTC
[jira] [Created] (JAMES-3848) ActiveMQ dequeuing can block (infinite timeout)
ouvtam created JAMES-3848:
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Summary: ActiveMQ dequeuing can block (infinite timeout)
Key: JAMES-3848
URL: https://issues.apache.org/jira/browse/JAMES-3848
Project: James Server
Issue Type: Improvement
Components: Queue
Reporter: ouvtam
While working on JAMES-3841 I stumbled blocking code that might be investigated.
When calling ActiveMQMessageConsumer#receive(timeout) it blocks until a new message is received when prefetchSize is zero (see org.apache.activemq.ActiveMQMessageConsumer#receive) even when a timeout is given. That would explain some observed timeouts in disabled tests in the test package org.apache.james.queue.activemq.
One way to mitigate this is to set prefetch size greater than zero to make the timeout occur. But this would also mean that code that relies on blocking dequeues must be rewritten.
What do you think?
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