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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-6046) Concurrent access to a Transport from WebSocket client can deadlock
Date Tue, 17 Nov 2015 16:21:11 GMT

    [ https://issues.apache.org/jira/browse/AMQ-6046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15008945#comment-15008945
] 

ASF subversion and git services commented on AMQ-6046:
------------------------------------------------------

Commit caa6b8e2539132999045c3fbbd627a2dc6d0885c in activemq's branch refs/heads/master from
[~tabish121]
[ https://git-wip-us.apache.org/repos/asf?p=activemq.git;h=caa6b8e ]

https://issues.apache.org/jira/browse/AMQ-6046

Prevent concurrent access to protocol handlers which can lead to
transport level deadlocks.  

> Concurrent access to a Transport from WebSocket client can deadlock
> -------------------------------------------------------------------
>
>                 Key: AMQ-6046
>                 URL: https://issues.apache.org/jira/browse/AMQ-6046
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: MQTT, stomp, Transport
>    Affects Versions: 5.12.0, 5.12.1, 5.11.3
>            Reporter: Timothy Bish
>            Assignee: Timothy Bish
>             Fix For: 5.13.0
>
>
> WebSocket connections can encounter a deadlock when the Jetty side allows for concurrent
access to the Transport instance that forwards commands onto the broker core.  This seems
to happen mostly in cases where a message or other action is incoming at the same time as
Jetty is closing the connection due to idle timeout or some other cause.  



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