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https://issues.apache.org/jira/browse/HDFS-6830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14095598#comment-14095598
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Hudson commented on HDFS-6830:
------------------------------
FAILURE: Integrated in Hadoop-Mapreduce-trunk #1862 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1862/])
HDFS-6830. BlockInfo.addStorage fails when DN changes the storage for a block
replica. (Arpit Agarwal) (arp:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1617598)
* /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/BlockInfo.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/DatanodeStorageInfo.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockInfo.java
> BlockInfo.addStorage fails when DN changes the storage for a block replica
> --------------------------------------------------------------------------
>
> Key: HDFS-6830
> URL: https://issues.apache.org/jira/browse/HDFS-6830
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.5.0
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Fix For: 3.0.0, 2.6.0
>
> Attachments: HDFS-6830.01.patch, HDFS-6830.02.patch,
> HDFS-6830.03.patch, HDFS-6830.04.patch
>
>
> The call to {{removeStorageInfo}} is wrong because the block is still in the
> DatanodeStorage's list of blocks and the callee does not expect it to be.
> {code}
> } else {
> // The block is on the DN but belongs to a different storage.
> // Update our state.
> removeStorage(getStorageInfo(idx));
> added = false; // Just updating storage. Return false.
> }
> {code}
> It is a very unlikely code path to hit since storage updates usually occur
> via incremental block reports.
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