Optional non-blocking redelivery
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Key: AMQ-1853
URL: https://issues.apache.org/activemq/browse/AMQ-1853
Project: ActiveMQ
Issue Type: Wish
Components: Broker
Affects Versions: 5.1.0
Reporter: Demian Mrakovich
When a message is redelivered the consumer blocks for the amount of time
specified by the redelivery delay. For a high load scenario where message order
is irrelevant this is just reducing performance and will result in a complete
halt if the delay is long and several bad messages are consumed in a short
time.
I think what I basically wish for is how it worked in versions 3.x, prior to
fix for AMQ-268. So I would very much like to have configurable option to NOT
block consumers when redelivering messages.
If no-one feels up to it, I'd still appreciate some hints and I could try to
fix it myself. Looking at ActiveMQMessageConsumer.rollback(), I was thinking
something in the lines of just scheduling a task to put the message back on
queue after a delay - if configured to, instead of stopping delivery and a
schedule a task to resume delivery again. But I do not possess an understanding
of AMQ thorough enough to predict potential side effects of this, so any
analysis would be helpful.
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