[ https://issues.apache.org/activemq/browse/AMQ-747?page=all ]
james strachan resolved AMQ-747:
--------------------------------
Resolution: Fixed
Patch applied - many thanks!
(we just missed 4.0.1 but will try release 4.1 real soon).
> Redelivery backoff should add random delay for collision avoidance
> ------------------------------------------------------------------
>
> Key: AMQ-747
> URL: https://issues.apache.org/activemq/browse/AMQ-747
> Project: ActiveMQ
> Type: Improvement
> Components: Connector
> Versions: 4.0
> Reporter: Christopher G. Stach II
> Fix For: 4.1
> Attachments: AMQ-747.patch
>
>
> If a rollback on two messages happens between three transactional deliveries,
> and the two messages are redelivered with the same redelivery backoff
> settings, there is a likelihood that both messages will cause another
> rollback to happen. If maximumRedeliveries is set too low, or there are a
> maximumRedeliveries + 1 messages coming in simultaneously, messages may never
> get delivered. Can we get another option for the clients that adds a random
> backoff delay adjustment in addition to the constant backoff delay factor?
> This would end up working like most other collision avoidance algorithms.
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