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From "Ken Hall (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMQ-6240) Producer cannot be terminated when slow consumer is detected
Date Mon, 11 Apr 2016 11:26:25 GMT

     [ https://issues.apache.org/jira/browse/AMQ-6240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ken Hall updated AMQ-6240:
--------------------------
    Attachment: brokertd.zip

Hi Gary - thanks for the quick response. 
Attached is a zip of the thread dump of the broker process
If you need any more info let me know

> Producer cannot be terminated when slow consumer is detected
> ------------------------------------------------------------
>
>                 Key: AMQ-6240
>                 URL: https://issues.apache.org/jira/browse/AMQ-6240
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Connector
>    Affects Versions: 5.13.2
>         Environment: The test was run using an out of the box install of ActiveMQ 5.13.2
on Windows 7 Professional (64 bit). 
> The java version used was jdk1.8.0_60
>            Reporter: Ken Hall
>         Attachments: brokertd.zip
>
>
> There is a discussion relating to the bug here - http://activemq.2283324.n4.nabble.com/Force-Producer-to-fail-when-blocked-by-slow-consumer-td4710264.html.
Test code to reproduce the problem  has also been uploaded to this discussion.
> We have  a situation where we have a producer which is feeding a slow consumer.
> The consumer belongs to a third party so we do not have control over the broker configuration.
> We would like to terminate our producer but we find that we cannot do so. We can set
the timeout on the connection and we then trap the timeout exception. The problem is that
when we try to close the session it attempts to rollback but cannot do so as the rollback
blocks.
> We have created a small test that is included in the zip (mentioned above) of an Eclipse
project.The zip includes three classes. Call the main method of RunTest to run the test. The
activemq.xml used is in the root directory of the project. 
> The program will timeout after 51 messages and attempt to close the session. 
> It eventually locks in this line: 
>             this.connection.syncSendPacket(info); 
> in the rollback method of the TransactionContext class.
> We believe that the most sensible solution to this is that the rollback should respond
to the same timeout as the connection.



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