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https://issues.apache.org/jira/browse/HDFS-3970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13546343#comment-13546343
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Hudson commented on HDFS-3970:
------------------------------
Integrated in Hadoop-trunk-Commit #3188 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/3188/])
HDFS-3970. Fix bug causing rollback of HDFS upgrade to result in bad
VERSION file. Contributed by Vinay and Andrew Wang. (Revision 1430037)
Result = SUCCESS
atm : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1430037
Files :
* /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/server/datanode/BlockPoolSliceStorage.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSRollback.java
> BlockPoolSliceStorage#doRollback(..) should use BlockPoolSliceStorage instead
> of DataStorage to read prev version file.
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-3970
> URL: https://issues.apache.org/jira/browse/HDFS-3970
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.0.0, 2.0.2-alpha
> Reporter: Vinay
> Assignee: Andrew Wang
> Fix For: 2.0.3-alpha
>
> Attachments: hdfs-3970-1.patch, HDFS-3970.patch
>
>
> {code} // read attributes out of the VERSION file of previous directory
> DataStorage prevInfo = new DataStorage();
> prevInfo.readPreviousVersionProperties(bpSd);{code}
> In the above code snippet BlockPoolSliceStorage instance should be used.
> other wise rollback results in 'storageType' property missing which will not
> be there in initial VERSION file.
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