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Date: Thu, 13 May 2010 19:37:43 -0400 (EDT)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Subject: [jira] Updated: (HDFS-1152) appendFile does not recheck lease in
 second synchronized block
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     [ https://issues.apache.org/jira/browse/HDFS-1152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated HDFS-1152:
------------------------------

    Attachment: appendFile-recheck-lease.txt

I had attached this same patch to HDFS-142, but then realized it is a problem on trunk as well. This is the 0.20-append version -- I'll write a patch that applies to trunk as well.

> appendFile does not recheck lease in second synchronized block
> --------------------------------------------------------------
>
>                 Key: HDFS-1152
>                 URL: https://issues.apache.org/jira/browse/HDFS-1152
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.21.0
>            Reporter: Todd Lipcon
>         Attachments: appendFile-recheck-lease.txt
>
>
> FSN.appendFile is made up of two synchronized sections. The second section assumes that the file has not gotten modified during the unsynchronized part in between. We should recheck the lease in the second block.

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