[jira] [Commented] (DIRMINA-1041) WriteFuture.await() hangs when the connection is closed remotely before await is invoked

["Emmanuel Lecharny (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DIRMINA-1041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15599343#comment-15599343 ] 

Emmanuel Lecharny commented on DIRMINA-1041:
--------------------------------------------

I think I have found a potential cause for the hang up : the {{DefaultWriteRequestQueue}} inner class in {{DefaultIoSessionDataStructureFactory}}, which was using a {{ConcurrentLinkedQueue}} instance, is also declaring some of its method {{synchronized}}, which does not make sense.


> WriteFuture.await() hangs when the connection is closed remotely before await is invoked
> ----------------------------------------------------------------------------------------
>
>                 Key: DIRMINA-1041
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-1041
>             Project: MINA
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 2.0.13
>            Reporter: Gijsbert van den Brink
>         Attachments: DIRMINA1041Test.java
>
>
> When in a high throughput scenario a TCP connection is closed remotely before one of the `await` methods on WriteFuture is invoked, the `await` method hangs.
> We've actually been seeing this issue for quite some time in our production environment in an application that uses Apache Camel with the camel-mina2 and camel-hl7 components. I was finally able to reproduce the issue in a unit test (see attached).



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