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From urciolo <Kevin.Urci...@ngc.com>
Subject RE: EXT :Re: CMS Library Hangs On Message Send
Date Wed, 24 Aug 2011 15:51:48 GMT
We do have producer flow control enabled.  However, we were not at that limit.  Attached is
another stack trace from a linux client.  This is on a different box, but attached to the
same broker as the first stack trace I sent (cleaner stack trace).  The snip below shows onException.
 Did something happen that caused a deadlock during a transport failure?

#15 0x404c387f in activemq::transport::failover::CloseTransportsTask::add ()
#16 0x404d00c5 in activemq::transport::failover::FailoverTransport::handleTransportFailure
() from /usr/local/lib/libactivemq-cpp.so.14
#17 0x404e18cf in activemq::transport::failover::FailoverTransportListener::onException ()
from /usr/local/lib/libactivemq-cpp.so.14
#18 0x404a0b51 in activemq::transport::TransportFilter::fire ()
#19 0x404a0b94 in activemq::transport::TransportFilter::onException ()
#20 0x404a0b51 in activemq::transport::TransportFilter::fire ()
#21 0x404a0b94 in activemq::transport::TransportFilter::onException ()
#22 0x404e2b9e in activemq::transport::inactivity::InactivityMonitor::onException () from
/usr/local/lib/libactivemq-cpp.so.14
#23 0x404a0b51 in activemq::transport::TransportFilter::fire ()
#24 0x404a0b94 in activemq::transport::TransportFilter::onException ()
#25 0x4049e38f in activemq::transport::IOTransport::fire ()
#26 0x4049ec9b in activemq::transport::IOTransport::run ()


From: tabish121@gmail.com [via ActiveMQ] [mailto:ml-node+3765782-2016265932-139195@n4.nabble.com]
Sent: Wednesday, August 24, 2011 11:41 AM
To: Urciolo, Kevin J (IS)
Subject: EXT :Re: CMS Library Hangs On Message Send

On Wed, 2011-08-24 at 07:55 -0700, urciolo wrote:
> Hello, we are using the latest CMS library to talk to ActiveMQ
> 5.5.0-fuse-00-43.  Some times the CMS clients hang on a message send.  The
> stack trace is attached from a process stuck on a Solaris 8 box.  Do you
> have any ideas as to why this is happening?
>

Do you have producer flow control enabled on the broker, that can cause
a producer to block if there's no more space for messages in that
destination.

Regards
Tim.

> http://activemq.2283324.n4.nabble.com/file/n3765597/MRT_output MRT_output
>
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--
Tim Bish
------------
FuseSource
Email: [hidden email]</user/SendEmail.jtp?type=node&node=3765782&i=0>
Web: http://fusesource.com
Twitter: tabish121
Blog: http://timbish.blogspot.com/




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