[
https://issues.apache.org/jira/browse/AMQ-4338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587349#comment-13587349
]
Timothy Bish commented on AMQ-4338:
-----------------------------------
I did some profiling and testing today. So far I couldn't find any real
issues. It seems that in the case of these tests the QOS setting just makes
things ungodly slow due to all the back and forth acking that's going on. I
guess its possible there's something amiss in the FuseSource MQTT client
library but so far I haven't found anything.
> MQTTSSLTest has multiple test cases that fail frequently
> --------------------------------------------------------
>
> Key: AMQ-4338
> URL: https://issues.apache.org/jira/browse/AMQ-4338
> Project: ActiveMQ
> Issue Type: Bug
> Components: Test Cases
> Reporter: Kevin Earls
> Priority: Minor
> Attachments: AMQ-4338A.patch, AMQ-4338.patch
>
>
> MQTTSSLTest has multiple different test cases (including
> testSendAndReceiveExactlyOnce, testSendAndReceiveLargeMessages,
> testSendAndReceiveMQTT, testSendAtLeastOnceReceiveAtMostOnce,
> testSendAtLeastOnceReceiveExactlyOnce, testSendJMSReceiveMQTT,
> testSendMQTTReceiveJMS) which fail fairly frequently because of a hang on the
> provider.connect() call in initializeConnection() as shown in the stacktrace
> below.
> Another problem with this test is it was giving a misleading error when run
> under Hudson, showing that the test that followed it (MQTTTest) was failing
> instead. I think this was because of the way it was using
> AutoFailTestSupport. I will attach a patch which removes that and uses
> timeouts on @Test annotations instead.
> testSendAndReceiveLargeMessages(org.apache.activemq.transport.mqtt.MQTTSSLTest)
> Time elapsed: 30.004 sec <<< ERROR!
> java.lang.Exception: test timed out after 30000 milliseconds
> at sun.misc.Unsafe.park(Native Method)
> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:994)
> at
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1303)
> at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:236)
> at org.fusesource.mqtt.client.Promise.await(Promise.java:88)
> at
> org.fusesource.mqtt.client.BlockingConnection.connect(BlockingConnection.java:49)
> at
> org.apache.activemq.transport.mqtt.FuseMQQTTClientProvider.connect(FuseMQQTTClientProvider.java:39)
> at
> org.apache.activemq.transport.mqtt.MQTTSSLTest.initializeConnection(MQTTSSLTest.java:60)
> Results :
> Tests in error:
>
> MQTTSSLTest>AbstractMQTTTest.testSendAndReceiveLargeMessages:247->initializeConnection:60
> ยป
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
