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https://issues.apache.org/jira/browse/HDFS-4578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13645560#comment-13645560
 ] 

Hudson commented on HDFS-4578:
------------------------------

Integrated in Hadoop-Hdfs-Snapshots-Branch-build #173 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-Snapshots-Branch-build/173/])
    HDFS-4578.  Restrict snapshot IDs to 24-bit wide.  Contributed by Arpit 
Agarwal (Revision 1477181)

     Result = FAILURE
szetszwo : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1477181
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/server/namenode/snapshot/SnapshotManager.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/TestSnapshotManager.java

                
> Restrict snapshot IDs to 24-bits wide
> -------------------------------------
>
>                 Key: HDFS-4578
>                 URL: https://issues.apache.org/jira/browse/HDFS-4578
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: Snapshot (HDFS-2802)
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>            Priority: Minor
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: HDFS-4578.004.patch, HDFS-4578.patch, HDFS-4578.patch, 
> HDFS-4578.patch
>
>
> Snapshot IDs will be restricted to 24-bits. This will allow at the most 
> ~16Million snapshots globally.

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