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From "Benjamin Reed (JIRA)" <j...@apache.org>
Subject [jira] Updated: (ZOOKEEPER-63) Race condition in client close() operation
Date Fri, 01 Aug 2008 15:50:31 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-63?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benjamin Reed updated ZOOKEEPER-63:
-----------------------------------

    Status: Patch Available  (was: Open)

> Race condition in client close() operation
> ------------------------------------------
>
>                 Key: ZOOKEEPER-63
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-63
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: java client
>            Reporter: Patrick Hunt
>            Assignee: james strachan
>         Attachments: patch_ZOOKEEPER-63.patch
>
>
> There is a race condition in the java close operation on ZooKeeper.java.
> Client is sending a disconnect request to the server. Server will close any open connections
with the client when it receives this. If the client has not yet shutdown it's subthreads
(event/send threads for example) these threads may consider the condition an error. We see
this alot in the tests where the clients output error logs because they are unaware that a
disconnection has been requested by the client.
> Ben mentioned: perhaps we just have to change state to closed (on client) before sending
disconnect request.

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