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From "Jeff Stein (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Created: (QPID-1770) JMS: No useful exception thrown when message is sent to full queue
Date Mon, 23 Mar 2009 23:03:50 GMT
JMS: No useful exception thrown when message is sent to full queue
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                 Key: QPID-1770
                 URL: https://issues.apache.org/jira/browse/QPID-1770
             Project: Qpid
          Issue Type: Bug
          Components: Java Client
    Affects Versions: M4
         Environment: Redhat with C++ broker
            Reporter: Jeff Stein
            Priority: Critical


In JMS, when a message is sent when a queue is already at its maximum size, nothing happens
for 60 seconds.  The program just hangs there.  Then, suddenly, these two exceptions are thrown:

org.apache.qpid.transport.SessionException: timed out waiting for session to become open (state=DETACHED)
	at org.apache.qpid.transport.Session.invoke(Session.java:442)
	at org.apache.qpid.transport.SessionInvoker.messageTransfer(SessionInvoker.java:96)
	at org.apache.qpid.client.BasicMessageProducer_0_10.sendMessage(BasicMessageProducer_0_10.java:160)
	at org.apache.qpid.client.BasicMessageProducer.sendImpl(BasicMessageProducer.java:465)
	at org.apache.qpid.client.BasicMessageProducer.sendImpl(BasicMessageProducer.java:420)
	at org.apache.qpid.client.BasicMessageProducer.send(BasicMessageProducer.java:289)
	at Producer.runTest(Producer.java:135)
	at Producer.main(Producer.java:64)
Producer: Caught an Exception: javax.jms.JMSException: Exception when sending message
javax.jms.JMSException: Exception when sending message
	at org.apache.qpid.client.BasicMessageProducer_0_10.sendMessage(BasicMessageProducer_0_10.java:173)
	at org.apache.qpid.client.BasicMessageProducer.sendImpl(BasicMessageProducer.java:465)
	at org.apache.qpid.client.BasicMessageProducer.sendImpl(BasicMessageProducer.java:420)
	at org.apache.qpid.client.BasicMessageProducer.send(BasicMessageProducer.java:289)
	at Producer.runTest(Producer.java:135)
	at Producer.main(Producer.java:64)

This is in contrast to, for example, a Python qpid producer, which will throw an exception
as soon as the queue is full, and it will be very specific about the problem, telling you
the queue is too full, which message overfilled it, etc.

I tested this using a hacked up version of the direct producer/consumer JMS example.  Just
run the producer (without the consumer running) long enough with large enough messages so
that it will reach the maximum queue size, and you should be able to see it. 

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