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https://issues.apache.org/jira/browse/HDFS-4706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13635140#comment-13635140
 ] 

Hudson commented on HDFS-4706:
------------------------------

Integrated in Hadoop-Hdfs-Snapshots-Branch-build #161 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-Snapshots-Branch-build/161/])
    HDFS-4706. Do not replace root inode for disallowSnapshot. (Revision 
1469122)

     Result = FAILURE
szetszwo : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1469122
Files : 
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-2802.txt
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/SnapshottableDirectoryStatus.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeDirectorySnapshottable.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotStats.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestNestedSnapshots.java
* 
/hadoop/common/branches/HDFS-2802/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/snapshot/TestSnapshotMetrics.java

                
> disallowSnapshot does not work for root
> ---------------------------------------
>
>                 Key: HDFS-4706
>                 URL: https://issues.apache.org/jira/browse/HDFS-4706
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: h4706_20130417.patch
>
>
> disallowSnapshot replaces a snapshottable directory to a normal directory.  
> However, we cannot replace root.

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