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https://issues.apache.org/jira/browse/HDFS-2822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13191322#comment-13191322
]
Hudson commented on HDFS-2822:
------------------------------
Integrated in Hadoop-Common-0.23-Commit #404 (See
[https://builds.apache.org/job/Hadoop-Common-0.23-Commit/404/])
HDFS-2822. processMisReplicatedBlock incorrectly identifies
under-construction blocks as under-replicated. Contributed by Todd Lipcon.
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1234926
Files :
*
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
*
/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestSafeMode.java
> processMisReplicatedBlock incorrectly identifies under-construction blocks as
> under-replicated
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-2822
> URL: https://issues.apache.org/jira/browse/HDFS-2822
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ha, name-node
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.24.0, 0.23.1
>
> Attachments: hdfs-2822.txt
>
>
> When the NN processes mis-replicated blocks while exiting safemode, it
> considers under-construction blocks as under-replicated, inserting them into
> the neededReplicationsQueue. This makes them show up as corrupt in the
> metrics and UI momentarily, until they're pulled off the queue. At that
> point, it realizes that they aren't in fact under-replicated, correctly. This
> affects both the HA branch and trunk/23, best I can tell.
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