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Posted to dev@zookeeper.apache.org by "Mahadev konar (JIRA)" <ji...@apache.org> on 2008/06/27 19:33:45 UTC
[jira] Assigned: (ZOOKEEPER-58) Race condition on ClientCnxn.java
[ https://issues.apache.org/jira/browse/ZOOKEEPER-58?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mahadev konar reassigned ZOOKEEPER-58:
--------------------------------------
Assignee: Flavio Paiva Junqueira
> Race condition on ClientCnxn.java
> ---------------------------------
>
> Key: ZOOKEEPER-58
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-58
> Project: Zookeeper
> Issue Type: Bug
> Components: java client
> Reporter: Flavio Paiva Junqueira
> Assignee: Flavio Paiva Junqueira
> Attachments: patch-incoming-race.txt
>
>
> There is a race condition involving the ByteByffer incomingBuffer, a field of ClientCnxn.SendThread. SendThread reads a packet in two steps: first it reads the length of the packet, followed by a read of the packet itself. Each of these steps corresponds to a call to doIO() from the main loop of run(). If there is an exception or the session times out, then it may leave incomingBuffer in an inconsistent state.
> The attached patch adds code to reset incomingBuffer upon a call to SendThread.cleanup(). This method is called upon an exception on run().
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