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From oholiab <>
Subject Re: TCP send and receive buffers filling preventing openwire communication
Date Fri, 17 Jan 2014 22:03:48 GMT
Sorry, forgot to add logfile stuff...

These hangups are often accompanied or preceded by log entries like:

2014-01-16 17:45:02,816 | WARN  | TopicSubscription:
consumer=B->A-35971-1389919240382-4:3:1:1, destinations=23, dispatched=1000,
delivered=0, matched=1001, discarded=0: has twice its prefetch limit
pending, without an ack; it appears to be slow | | ActiveMQ NIO Worker 94

But the network connectors always continue to appear open in jconsole

I'm suspecting this has something to do with the buffers filling up and not
having space for an ack to be sent before the message can be consumed but
it's only a theory

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