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Posted to dev@activemq.apache.org by tpavelka <to...@ca.com> on 2018/04/17 14:45:52 UTC

Spinning loop in TcpTransportServer

Hello,
I am investigating a problem on z/OS where the socket accept loop in
TcpTransportServer can indefinitelly spin the CPU at 100% and churn out
large amounts of messages. I have opened the issue AMQ-6937 for this. While
working on this issue, I have discovered that the problem can happen on
Linux as well, when you run out of file descriptors you will get the same
tight loop.
I have put together a patch (attached to AMQ-6937) that slows down exception
handling so that these situations do not consume as much CPU.
Can somebody help me understand what do I need to do to make this patch
added to an ActiveMQ release? 

Thanks,
Tomas



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