Tim Bain created AMQ-5625:
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Summary: Allow AbortSlowConsumerStrategy to specify a fixed number
of pending messages to consider a consumer slow
Key: AMQ-5625
URL: https://issues.apache.org/jira/browse/AMQ-5625
Project: ActiveMQ
Issue Type: Improvement
Components: Broker
Affects Versions: 5.8.0
Reporter: Tim Bain
Currently, the AbortSlowConsumerStrategy considers a consumer to be slow when
the broker has a number of pending messages equal to the consumer's prefetch
buffer size.
It would be useful to be able to specify directly the number of messages that
must be pending to consider the consumer slow, irrespective of the consumer's
prefetch size.
This would be especially useful for consumers with a very small prefetch size
(e.g. 1), to allow them to meaningfully use the AbortSlowConsumerStrategy
instead of being forced to use the AbortSlowAckConsumerStrategy (which protects
against a very different kind of problem). But it would also be useful for
consumers with larger prefetch buffers if we want to consider the consumer slow
sooner than the point where there are an additional prefetch buffer worth of
pending message; this is especially true for anyone using the default prefetch
size of 32k messages for non-persistent topics.
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