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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1205) The open method of FSNamesystem should be synchronized
Date Mon, 14 May 2007 17:17:17 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12495680
] 

dhruba borthakur commented on HADOOP-1205:
------------------------------------------

Maybe we can make the open method synchronized on the FSNamesystem global lock for the 0.13
release. A more finer-grain lockign odel is part of 1309 and will be scheduled for the following
release.

> The open method of FSNamesystem should be synchronized
> ------------------------------------------------------
>
>                 Key: HADOOP-1205
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1205
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.12.2
>            Reporter: Hairong Kuang
>             Fix For: 0.13.0
>
>         Attachments: open.patch
>
>
> Method open accesses a shared data structure blockMap. If synchronization access is not
enforced, open might return inconsistent results.

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