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Posted to issues@activemq.apache.org by "Tiago Santos (JIRA)" <ji...@apache.org> on 2018/01/12 16:54:00 UTC

[jira] [Created] (ARTEMIS-1604) Artemis deadlock using MQTT Protocol

Tiago Santos created ARTEMIS-1604:
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             Summary: Artemis deadlock using MQTT Protocol
                 Key: ARTEMIS-1604
                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1604
             Project: ActiveMQ Artemis
          Issue Type: Bug
            Reporter: Tiago Santos
         Attachments: artemisDeadlock.log, broker.xml

Hello,

When load testing artemis as our MQTT Broker, we detected the broker deadlocks and crashs (see attached log).
Our use case is trying 1000 simultaneous connections (publishers) each sending 1 message per second with 1KB size.
After all 1000 clients successfully connected to artemis and start sending the messages after a while the deadlock comes up.

The Xms and Xmx of the JVM both are set to 4GB
The broker.xml can be found in attach.



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