NetworkConnector PrefetchSize
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Key: AMQ-2286
URL: https://issues.apache.org/activemq/browse/AMQ-2286
Project: ActiveMQ
Issue Type: Bug
Components: Broker
Affects Versions: 5.2.0
Environment: Sun solaris 10
Reporter: ying
Priority: Blocker
I have an issue which greatly reduces the quality of service of a network of
activemq brokers.
Here is what I have:
1. 4 brokers( broker1, broker2, broker3, broker4) in a network by multicast
discovery
2. i have 2 consumers of QueueA on broker1, 2 consumers of QueueA on broker2,
and consumer queuePrefetch=1, networkConnector prefetchSize=1. Queue is using
RoundRobinDispatchPolicy
3. I publish to QueueA on broker3 with 100 msgs, 2 consumers on broker1 are
fast and they process fine but 2 consumers on broker2 are stuck. However, with
this config, msgs are still 50 goes to broker1, 50 goes to broker2, and when
consumers on broker2 get stuck, those 50 msgs are stuck on broker2. It seems
the prefetchSize=1 on networkConnector have no effect at all.
what I expect in this case will be that 98 msgs shall go to broker1, and only 2
msgs stuck on broker2's consumers. I cannot lose a single msg so
ConstantPendingMessageLimit will not help.
Please help. Thanks
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