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From "sam rash (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6762) exception while doing RPC I/O closes channel
Date Mon, 07 Jun 2010 21:41:49 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

sam rash updated HADOOP-6762:
-----------------------------

    Attachment: hadoop-6762-8.txt

> exception while doing RPC I/O closes channel
> --------------------------------------------
>
>                 Key: HADOOP-6762
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6762
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.20.2
>            Reporter: sam rash
>            Assignee: sam rash
>         Attachments: hadoop-6762-1.txt, hadoop-6762-2.txt, hadoop-6762-3.txt, hadoop-6762-4.txt,
hadoop-6762-6.txt, hadoop-6762-7.txt, hadoop-6762-8.txt
>
>
> If a single process creates two unique fileSystems to the same NN using FileSystem.newInstance(),
and one of them issues a close(), the leasechecker thread is interrupted.  This interrupt
races with the rpc namenode.renew() and can cause a ClosedByInterruptException.  This closes
the underlying channel and the other filesystem, sharing the connection will get errors.

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