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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6762) exception while doing RPC I/O closes channel
Date Thu, 10 Jun 2010 16:49:15 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12877482#action_12877482
] 

Todd Lipcon commented on HADOOP-6762:
-------------------------------------

Note that one of the path segments differs between the two URLs. I think it just pulls an
attachment ID from that path segment and downloads that, regardless of the name at the end
of the path (your two wget urls have the same path segment, I guess you manually edited the
last bit?)

> 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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