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https://issues.apache.org/jira/browse/QPID-3747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13184832#comment-13184832
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Keith Wall commented on QPID-3747:
----------------------------------
This seems to be a Java Broker bug affecting 0-10 only. When the problem
occurs the incoming MessageTransfer for the third message always has the wrong
destination, causing the message to be sent to the (wrong) Consumer A
(destination 1) rather than Consumer B (destination 2).
The failing case:
{code}
main 2012-01-12 08:54:11,318 DEBUG [qpid.client.prefetch.PrefetchBehaviourTest]
Checking that Consumer A does not have 3rd message
main 2012-01-12 08:54:11,318 DEBUG [qpid.client.AMQSession.Dispatcher] Set
Dispatcher Connection Started: Currently Started
IoReceiver - localhost/127.0.0.1:15672 2012-01-12 08:54:11,318 DEBUG
[apache.qpid.transport.Connection] RECV: [conn:34883357] ch=0
MessageTransfer(destinatio
n=1, acceptMode=EXPLICIT, acquireMode=PRE_ACQUIRED)
DeliveryProperties(priority=MEDIUM, deliveryMode=PERSISTENT,
timestamp=1326358451231, exchange=amq.direct,
routingKey=PrefetchBehaviourTest-testLowPrefetch
CausesMessagesToBeDistributedBetweenConsumers)
MessageProperties(contentLength=1024,
messageId=63e1574b-d085-3e4e-aeb8-f5695bd0e849, contentType=text/plain,
userId=[B@3b19e583, applicationHeaders={index
=2})
{code}
The successful case:
{code}
main 2012-01-12 08:39:58,236 DEBUG [qpid.client.prefetch.PrefetchBehaviourTest]
Checking that Consumer A does not have 3rd message
main 2012-01-12 08:39:58,236 DEBUG [qpid.client.AMQSession.Dispatcher] Set
Dispatcher Connection Started: Currently Started
BROKER: pool-3-thread-5 2012-01-12 08:39:58,236 DEBUG
[apache.qpid.transport.Connection] SEND: [conn:6ce931d9] ch=0 id=2 [B]
MessageTransfer(destination=2, a
cceptMode=EXPLICIT, acquireMode=PRE_ACQUIRED)
BROKER: DeliveryProperties(priority=MEDIUM, deliveryMode=PERSISTENT,
timestamp=1326357598175, exchange=amq.direct,
routingKey=PrefetchBehaviourTest-testLow
PrefetchCausesMessagesToBeDistributedBetweenConsumers)
BROKER: MessageProperties(contentLength=1024,
messageId=96258a94-f08d-3a56-9af4-94b04b5d2e70, contentType=text/plain,
userId=[B@30cafa1, applicationHeaders
={index=2})
{code}
> AMQConnectionTest#testPrefetchSystemProperty occasionally fails on spawned
> profiles.
> ------------------------------------------------------------------------------------
>
> Key: QPID-3747
> URL: https://issues.apache.org/jira/browse/QPID-3747
> Project: Qpid
> Issue Type: Bug
> Components: Java Tests
> Affects Versions: 0.15
> Reporter: Keith Wall
> Assignee: Keith Wall
>
> We see test AMQConnectionTest#testPrefetchSystemProperty occasionally fail on
> CI instances running the spawned profiles with assertion failure "Consumer A
> should not have received a 3rd message"
> e.g. java-mms-spawn.0-10
> {code}
> junit.framework.AssertionFailedError: Consumer A should not have received a
> 3rd message
> at
> org.apache.qpid.test.unit.client.AMQConnectionTest.testPrefetchSystemProperty(AMQConnectionTest.java:263)
> at
> org.apache.qpid.test.utils.QpidBrokerTestCase.runBare(QpidBrokerTestCase.java:240)
> at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:135)
> {code}
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