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From "Rakesh R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12556) [SPS] : Block movement analysis should be done in read lock.
Date Sat, 14 Oct 2017 02:33:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12556?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16204435#comment-16204435
] 

Rakesh R commented on HDFS-12556:
---------------------------------

Thanks [~surendrasingh] for the patch. It looks like the test case failures are unrelated
to the patch. {{TestPersistentStoragePolicySatisfier#testWithRestarts}} is random failure
and can be analysed separately.

+1 LGTM

> [SPS] : Block movement analysis should be done in read lock.
> ------------------------------------------------------------
>
>                 Key: HDFS-12556
>                 URL: https://issues.apache.org/jira/browse/HDFS-12556
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Surendra Singh Lilhore
>            Assignee: Surendra Singh Lilhore
>         Attachments: HDFS-12556-HDFS-10285-01.patch, HDFS-12556-HDFS-10285-02.patch,
HDFS-12556-HDFS-10285-03.patch
>
>
> {noformat}
> 2017-09-27 15:58:32,852 [StoragePolicySatisfier] ERROR namenode.StoragePolicySatisfier
(StoragePolicySatisfier.java:handleException(308)) - StoragePolicySatisfier thread received
runtime exception. Stopping Storage policy satisfier work
> java.lang.ArrayIndexOutOfBoundsException: 1
> 	at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.getStorages(BlockManager.java:4130)
> 	at org.apache.hadoop.hdfs.server.namenode.StoragePolicySatisfier.analyseBlocksStorageMovementsAndAssignToDN(StoragePolicySatisfier.java:362)
> 	at org.apache.hadoop.hdfs.server.namenode.StoragePolicySatisfier.run(StoragePolicySatisfier.java:236)
> 	at java.lang.Thread.run(Thread.java:745)
> {noformat}



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