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From Geurt Schimmel <>
Subject destinationPolicy and producerFlowControl for large messages
Date Mon, 03 Dec 2012 10:42:18 GMT

Using a destinationPolicy for dealing with large messages (23Mb):

         <policyEntry topic="LOCAL.ORATK.CFILE" producerFlowControl="true" memoryLimit="30mb">

My broker hangs on flowcontrol as the topic has reached the 30Mb boundary - why ? Sending
just 1 message of 23Mb by splitting it into chunks of 10kb and offering them to a Camel File
component. At the other end of a network-of-brokers a Camel File component is writing the
chunks to disk. The only way to release the flowcontrol is to bounce the affected brokers.
Why ? There is enough diskspace at the consumer-end, don't understand why flowcontrol is never
The poor-man's solution by setting producerFlowControle=false and slowing down the number
of chunks offered to the Camel-component works, but that is not a very scalable solution.
Any ideas ?


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