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From cristisor <cristisor...@yahoo.com>
Subject Messages stuck, back to normal after restart
Date Wed, 06 Nov 2013 14:14:04 GMT
Hi all,

We are using Apache ServiceMix 3.6.0-fuse-00-89 with ActiveMQ
5.5.1-fuse-00-89. Lately, a very weird problem has been reported, the
messages don't arrive to the consumers. The messages are being sent from
different machines, each with its own topic, and each topic has 2
subscriptions. One subscription is being used by a Java application running
as a Windows Service and the other one is being used by an Apache Camel
component.

The load is not very high, so we don't consider memory/resources problems.
Also, the number of stuck messages is pretty high, 980 messages out of 1433
reached one of the endpoints and 1288 out of 1433 reached the other endpoint
yesterday. An average of 1500 messages per day is not much at all and can't
cause memory issues.

After restarting ServiceMix (with the embedded broker), most of the messages
got through, but a second restart was necessary to have everything sent. I'm
using JConsole so I tried to browse the messages on that endpoint, but a
blank window was shown.

The only thing that has changed between the releases is the ack mode, from
DUPS_OK_ACKNOWLEDGE to AUTO_ACKNOWLEDGE now.

This problems is random and the situation is pretty bad because it's the
production environment, so any help would be apreciated.

Thanks.



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