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https://issues.apache.org/jira/browse/ZOOKEEPER-1100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141487#comment-13141487
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Camille Fournier commented on ZOOKEEPER-1100:
---------------------------------------------

I'm reviewing this issue. Can I get some clarity? Is the issue that you get a 
runtime exception outside of the try block after while (state.isAlive()) so the 
thread dies and hangs? Why put the try block there instead of around the entire 
method?
                
> Killed (or missing) SendThread will cause hanging threads
> ---------------------------------------------------------
>
>                 Key: ZOOKEEPER-1100
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1100
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client
>    Affects Versions: 3.3.3
>         Environment: 
> http://mail-archives.apache.org/mod_mbox/zookeeper-user/201106.mbox/%3Citpgb6$2mi$1...@dough.gmane.org%3E
>            Reporter: Gunnar Wagenknecht
>            Assignee: Rakesh R
>             Fix For: 3.5.0
>
>         Attachments: ZOOKEEPER-1100.patch
>
>
> After investigating an issues with [hanging 
> threads|http://mail-archives.apache.org/mod_mbox/zookeeper-user/201106.mbox/%3Citpgb6$2mi$1...@dough.gmane.org%3E]
>  I noticed that any java.lang.Error might silently kill the SendThread. 
> Without a SendThread any thread that wants to send something will hang 
> forever. 
> Currently nobody will recognize a SendThread that died. I think at least a 
> state should be flipped (or flag should be set) that causes all further send 
> attempts to fail or to re-spin the connection loop.

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