[jira] [Created] (AMQ-3234) Memory usage limits may be reported incorrectly.

["Adrian Trenaman (JIRA)" <ji...@apache.org>]

Memory usage limits may be reported incorrectly.  
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                 Key: AMQ-3234
                 URL: https://issues.apache.org/jira/browse/AMQ-3234
             Project: ActiveMQ
          Issue Type: Bug
          Components: Broker
    Affects Versions: 5.4.2
         Environment: All

            Reporter: Adrian Trenaman


The determination of whether memory usage 'isFull' is performed by first checking if the parent memory usage is full, and the checking if the queue's memory usage itself is full (See line 91 of MemoryUsage.java). However, the reporting of a memory usage full event (at line 548 of Queue.java, reproduced below) creates a message based on the memory usage of the queue alone. So, it's possible that a memory limit may be hit because of the overall Broker memory being consumed, but it will be reported as a limit breach of a smaller queue memory usage amount. 

{code} 
LOG.info("Usage Manager Memory Limit ("
  + memoryUsage.getLimit()
  + ") reached on "
  + getActiveMQDestination().getQualifiedName()
  + ". Producers will be throttled to the rate at which messages are removed from this destination to prevent flooding it."
  + " See http://activemq.apache.org/producer-flow-control.html for more info");
{code}

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