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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7610) Fix removal of dynamically added DN volumes
Date Wed, 21 Jan 2015 04:24:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14285146#comment-14285146
] 

Hudson commented on HDFS-7610:
------------------------------

FAILURE: Integrated in Hadoop-trunk-Commit #6899 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/6899/])
HDFS-7610. Fix removal of dynamically added DN volumes (Lei (Eddy) Xu via Colin P. McCabe)
(cmccabe: rev a17584936cc5141e3f5612ac3ecf35e27968e439)
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeList.java
* hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsDatasetImpl.java
HDFS-7610. Add CHANGES.txt (cmccabe: rev a1222784fbc4b0000b51be96586ec2ae7098264b)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt


> Fix removal of dynamically added DN volumes
> -------------------------------------------
>
>                 Key: HDFS-7610
>                 URL: https://issues.apache.org/jira/browse/HDFS-7610
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.6.0
>            Reporter: Lei (Eddy) Xu
>            Assignee: Lei (Eddy) Xu
>             Fix For: 2.7.0
>
>         Attachments: HDFS-7610.000.patch, HDFS-7610.001.patch
>
>
> In the hot swap feature, {{FsDatasetImpl#addVolume}} uses the base volume dir (e.g. "{{/foo/data0}}",
instead of volume's current dir "{{/foo/data/current}}" to construct {{FsVolumeImpl}}. As
a result, DataNode can not remove this newly added volume, because its {{FsVolumeImpl#getBasePath}}
returns "{{/foo}}".



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