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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5709) Improve NameNode upgrade with existing reserved paths and path components
Date Wed, 05 Feb 2014 11:14:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13892001#comment-13892001
] 

Hudson commented on HDFS-5709:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #472 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/472/])
HDFS-5709. Improve NameNode upgrade with existing reserved paths and path components. Contributed
by Andrew Wang. (atm: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1564645)
* /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/DFSUtil.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/HdfsConstants.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/common/HdfsServerConstants.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSEditLogLoader.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormat.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NameNode.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsSnapshots.xml
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSUpgradeFromImage.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeOptionParsing.java
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/resources/hadoop-2-reserved.tgz


> Improve NameNode upgrade with existing reserved paths and path components
> -------------------------------------------------------------------------
>
>                 Key: HDFS-5709
>                 URL: https://issues.apache.org/jira/browse/HDFS-5709
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>              Labels: snapshots, upgrade
>             Fix For: 2.4.0
>
>         Attachments: hdfs-5709-1.patch, hdfs-5709-2.patch, hdfs-5709-3.patch, hdfs-5709-4.patch,
hdfs-5709-5.patch, hdfs-5709-6.patch, hdfs-5709-7.patch
>
>
> Right now in trunk, upgrade fails messily if the old fsimage or edits refer to a directory
named ".snapshot". We should at least print a better error message (which I believe was the
original intention in HDFS-4666), and [~atm] proposed automatically renaming these files and
directories.



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