[jira] [Created] (ARTEMIS-2185) High allocation pressure due to pre generated ActiveMQExceptionMessage

["juergen schmied (JIRA)" <ji...@apache.org>]

juergen schmied created ARTEMIS-2185:
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             Summary: High allocation pressure due to pre generated ActiveMQExceptionMessage
                 Key: ARTEMIS-2185
                 URL: https://issues.apache.org/jira/browse/ARTEMIS-2185
             Project: ActiveMQ Artemis
          Issue Type: Improvement
          Components: Broker
    Affects Versions: 2.6.3
            Reporter: juergen schmied


In org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl there is
{code:java}
   public void returnBlocking(Throwable cause) {
      lock.lock();

      try {
         response = new ActiveMQExceptionMessage(ActiveMQClientMessageBundle.BUNDLE.unblockingACall(cause));

         sendCondition.signal();
      } finally {
         lock.unlock();
      }
   }
{code}

The response is created but normally not used.

For every get/close connection there is the a ActiveMQExceptionMessage incl. stacktrace created and abandoned.

This shows a high allocation pressure in jmc (8 MB garbage/200 calls).

please don't precreate the unused exception (maybe use a producer producing exception when really needed)




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