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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6783) Fix HDFS CacheReplicationMonitor rescan logic
Date Thu, 14 Aug 2014 16:00:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14097124#comment-14097124
] 

Hudson commented on HDFS-6783:
------------------------------

SUCCESS: Integrated in Hadoop-Mapreduce-trunk #1863 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1863/])
Updated contributors name in CHANGES.txt for HDFS-6783 (umamahesh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1617880)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
HDFS-6783. Fix HDFS CacheReplicationMonitor rescan logic. Contributed by Yi Liu and Colin
Patrick McCabe. (umamahesh: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1617872)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/CacheReplicationMonitor.java


> Fix HDFS CacheReplicationMonitor rescan logic
> ---------------------------------------------
>
>                 Key: HDFS-6783
>                 URL: https://issues.apache.org/jira/browse/HDFS-6783
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: caching
>    Affects Versions: 3.0.0
>            Reporter: Yi Liu
>            Assignee: Yi Liu
>             Fix For: 3.0.0, 2.6.0
>
>         Attachments: HDFS-6783.001.patch, HDFS-6783.002.patch, HDFS-6783.003.patch, HDFS-6783.004.patch,
HDFS-6783.005.patch, HDFS-6783.006.patch
>
>
> In monitor thread, needsRescan is set to false before real scan starts, so 
> for {{waitForRescanIfNeeded}} will return for the first condition:
> {code}
> if (!needsRescan) {
>   return;
> }
> {code}



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