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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQCPP-316) Unable to receive any messages after re-starting message broker
Date Thu, 23 Sep 2010 21:42:40 GMT

    [ https://issues.apache.org/activemq/browse/AMQCPP-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=62057#action_62057
] 

Timothy Bish commented on AMQCPP-316:
-------------------------------------

Would need to know a bit more about the scenario that you were testing in.  Was there a broker
running and you killed it, or was there nothing running when you started your app?  

In general you can assume that setting any timeout option in CMS to zero means wait forever,
not don't wait.  A zero timeout on the failover transport doesn't really make any sense, every
very small one's don't really make much sense since you are essentially making it fail before
it ever has a chance to reconnect, in which case, why use failover.  When not using the CMSTemplate
code you could try a again using the same connection but in CMSTemplate once that exception
gets thrown the Whole Connection / Session / Producer stack gets torn down and then a new
Connection / Session / Producer etc gets recreated on the next call to send, so its not something
I'd think you'd want to do all that often.  



> Unable to receive any messages after re-starting message broker
> ---------------------------------------------------------------
>
>                 Key: AMQCPP-316
>                 URL: https://issues.apache.org/activemq/browse/AMQCPP-316
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>          Components: CMS Impl
>    Affects Versions: 3.2.0, 3.2.1, 3.2.2, 3.2.3
>         Environment: Windows xp service pack 3, ActiveMQ broker 5.3.1, apr 1.4.2, apr-util
1.3.9, apr iconv 1.2.1
>            Reporter: Helen Huang
>            Assignee: Timothy Bish
>            Priority: Critical
>             Fix For: 3.2.4, 3.3.0
>
>         Attachments: ReconnectionTest-new.zip, ReconnectionTest.zip
>
>
> We developed two applications that use CmsTemplate to send and receive messages. The
sender application is called MessageSender, and the receiver application is called MessageListener.
We found that the MessageListener is unable to receive any messages after we re-start the
message broker.
> The followings are the steps to recreate the problem:
> (1) start the activemq message broker,
> (2) start MessageListener and MessageSender, and observe that messages are being sent
and received successfully.
> (3) stop the message broker without stopping MessageListener and MessageSender. Wait
for a while (for about a minute or two)
> (4) start the message broker again.
> We expect we can send and receive messages successfully after step (4), but the MessageListener
can never receive any messages any more. Also from the activemq admin page, we find that the
consumer of the topic is gone. We did the test with url "?keepAlive=true&wireFormat.maxInactivityDuration=0",
but it did not work.

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