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https://issues.apache.org/jira/browse/HDFS-7719?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307313#comment-14307313
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Hudson commented on HDFS-7719:
------------------------------
SUCCESS: Integrated in Hadoop-Hdfs-trunk-Java8 #92 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/92/])
HDFS-7719. BlockPoolSliceStorage#removeVolumes fails to remove some in-memory
state associated with volumes. (Lei (Eddy) Xu via Colin P. McCabe) (cmccabe:
rev 40a415799b1ff3602fbb461765f8b36f1133bda2)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataStorage.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeHotSwapVolumes.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceStorage.java
> BlockPoolSliceStorage#removeVolumes fails to remove some in-memory state
> associated with volumes
> ------------------------------------------------------------------------------------------------
>
> Key: HDFS-7719
> URL: https://issues.apache.org/jira/browse/HDFS-7719
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Fix For: 2.7.0
>
> Attachments: HDFS-7719.000.patch, HDFS-7719.001.patch,
> HDFS-7719.002.patch, HDFS-7719.003.patch
>
>
> The parameter of {{BlockPoolSliceStorage#removeVolumes()}} is a set of volume
> level directories, thus {{BlockPoolSliceStorage}} could not directly compare
> its own {{StorageDirs}} with this volume-level directory. The result of that
> is {{BlockPoolSliceStorage}} did not actually remove the targeted
> {{StorageDirectory}}.
> It will cause failure when remove a volume and then immediately add a volume
> back with the same mount point..
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