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https://issues.apache.org/jira/browse/AMQ-5313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wayne Irwin updated AMQ-5313:
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Attachment: FailedReconnect.log
Log file showing a reconnection that does not resume issuing PullMessages.
> ActiveMq consumer intermittently hanging after reconnect
> --------------------------------------------------------
>
> Key: AMQ-5313
> URL: https://issues.apache.org/jira/browse/AMQ-5313
> Project: ActiveMQ
> Issue Type: Bug
> Components: JMS client
> Affects Versions: 5.9.0
> Environment: AIX 6.1, AIX 7.1, IBM Java 6, IBM Java 7
> Reporter: Wayne Irwin
> Attachments: FailedReconnect.log
>
>
> I have run into an intermittent problem with ActiveMQ V5.9.0. The
> intermittent was tracked down to being a connection error that does not get
> properly recovered.
> I have recreated the problem in a very small example by creating a Camel
> consumer route that retrieves messages from a JMS queue and writes the text
> message to a log.
> from(TEST_QUEUE).routeId(TEST_QUEUE).convertBodyTo(String.class)
> .log(LoggingLevel.INFO, loggerName, "Request Received ");
>
> The connection string used is
>
> failover:(tcp://serverd05.company.com:26093?keepAlive=true)?jms.prefetchPolicy.all=0
>
> Please note that polling is being used when the prefetch size is set to 0.
> I then use Hawtio on the ActiveMQ broker to add some text messages to the
> queue. It works fine.
>
> I then stop the Client Connector on the ActiveMQ broker side to simulate a
> broken connection on the consumer side. (The broker must be remote to the
> consumer or the error will not occur.) The client logs show that an
> EOFException is caught and the connection is reestablished. The connection
> also appears on the ActiveMQ broker. it only looks good though. Sending new
> text messages to the queue will not be processed. They will just sit there.
> There are no errors or warnings logged on either the consumer or broker
> servers. Restarting the consumer will cause the messages to get processed.
> The reconnection only intermittently fails. I find is much more like to occur
> if 10 minutes pass from the previous message being processed.
> I turned on trace=yes in the connection string and found the root cause is
> the PullMessage commands are occasionally not being issued after a reconnect.
> On cases where it works, the log shows that the PullMessage commands do
> reinstate.
> I am wondering if this might be a race condition, as this problem only showed
> up when the consumer was on fast servers
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