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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6762) exception while doing RPC I/O closes channel
Date Tue, 11 Jan 2011 16:55:49 GMT

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

Todd Lipcon updated HADOOP-6762:
--------------------------------

         Priority: Critical  (was: Major)
    Fix Version/s: 0.22.0

Sorry, Sam, this one dropped off my radar. I'd like to get it in for 0.22, let me swing around
and see what work's remaining.

> 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
>            Priority: Critical
>             Fix For: 0.22.0
>
>         Attachments: hadoop-6762-1.txt, hadoop-6762-10.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, hadoop-6762-9.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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