Gary Tully created AMQ-4224:
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Summary: Setting queue policy queuePrefetch=0 in broker
configuration causes messages to stay in pending state in broker - the messages
aren't consumed
Key: AMQ-4224
URL: https://issues.apache.org/jira/browse/AMQ-4224
Project: ActiveMQ
Issue Type: Bug
Components: Broker, JMS client
Affects Versions: 5.7.0
Reporter: Gary Tully
Assignee: Gary Tully
Priority: Minor
Fix For: 5.8.0
Broker prefetch config {code}<policyEntry queue="XX" ...
queuePrefetch="0">{code} takes effect if the consumerInfo contains the default
value (1000), indicating that it does not have a preference.
However in the case that the broker chooses 0, to make all consumers pull
messages, this information needs to be propagated back to the consumer to allow
the receive(..) call to initiate a pull. Currently it is conditional on the
consumer prefetch value == 0 which is currently not updated.
The fix is to have the broker send a connection control message to update the
prefetch when broker config uses 0, and have the receive(..) call check the
current prefetch value.
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