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From "Sergey Ermakov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-3920) Performance issue with delay policy in DestinationBridge.onMessage
Date Tue, 10 Jul 2012 14:29:34 GMT
Sergey Ermakov created AMQ-3920:
-----------------------------------

             Summary: Performance issue with delay policy in DestinationBridge.onMessage
                 Key: AMQ-3920
                 URL: https://issues.apache.org/jira/browse/AMQ-3920
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.6.0
            Reporter: Sergey Ermakov
            Priority: Critical


Incorrect sleep implementation in org.apache.activemq.network.jms.DestinationBridge.onMessage

In the current implementation the condition 'attempt > 0' is true during the first iteration.
It causes critical performance problems in high load environment.

Code example from DestinationBridge.onMessage:
...
while (started.get() && message != null && ++attempt <= maxRetries) {

            try {

                if (attempt > 0) {//IT'S TRUE DURING FIRST ITERATION
                    try {                       Thread.sleep(jmsConnector.getReconnectionPolicy().getNextDelay(attempt));
                    } catch(InterruptedException e) {
                        break;
                    }
                }
...

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