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https://issues.apache.org/jira/browse/HDFS-5535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13920745#comment-13920745
 ] 

Hudson commented on HDFS-5535:
------------------------------

SUCCESS: Integrated in Hadoop-Yarn-trunk #500 (See 
[https://builds.apache.org/job/Hadoop-Yarn-trunk/500/])
svn merge --reintegrate 
https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-5535 back to 
trunk. (szetszwo: 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1574259)
* /hadoop/common/trunk
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
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* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java
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> Umbrella jira for improved HDFS rolling upgrades
> ------------------------------------------------
>
>                 Key: HDFS-5535
>                 URL: https://issues.apache.org/jira/browse/HDFS-5535
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode, ha, hdfs-client, namenode
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Nathan Roberts
>         Attachments: HDFSRollingUpgradesHighLevelDesign.pdf, 
> HDFSRollingUpgradesHighLevelDesign.v2.pdf, h5535_20140219.patch, 
> h5535_20140220-1554.patch, h5535_20140220b.patch, h5535_20140221-2031.patch, 
> h5535_20140224-1931.patch, h5535_20140225-1225.patch, 
> h5535_20140226-1328.patch, h5535_20140226-1911.patch, 
> h5535_20140227-1239.patch, h5535_20140228-1714.patch, 
> h5535_20140304-1138.patch, hdfs-5535-test-plan.pdf
>
>
> In order to roll a new HDFS release through a large cluster quickly and 
> safely, a few enhancements are needed in HDFS. An initial High level design 
> document will be attached to this jira, and sub-jiras will itemize the 
> individual tasks.



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