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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4951) Lease monitor does not own the LeaseManager lock in changing leases.
Date Tue, 30 Dec 2008 00:11:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo (Nicholas), SZE updated HADOOP-4951:

        Priority: Blocker  (was: Major)
    Hadoop Flags: [Reviewed]

     [exec] -1 overall.  
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified
     [exec]                         Please justify why no tests are needed for this patch.
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.

No new tests added since I don't know how to create a meaningful test for this.

> Lease monitor does not own the LeaseManager lock in changing leases.
> --------------------------------------------------------------------
>                 Key: HADOOP-4951
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4951
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.2
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Blocker
>         Attachments: 4951_20081229.patch, 4951_20081229b.patch, 4951_20081229c.patch
> In Monitor.checkLeases(), the monitor thread does not own the LeaseManager lock but it
may modify the leases.

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