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https://issues.apache.org/jira/browse/HDFS-11890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16055354#comment-16055354
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Surendra Singh Lilhore commented on HDFS-11890:
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Thanks [~brahmareddy] for review and commit..
> Handle NPE in BlockRecoveryWorker when DN is getting shoutdown.
> ---------------------------------------------------------------
>
> Key: HDFS-11890
> URL: https://issues.apache.org/jira/browse/HDFS-11890
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.7.2
> Reporter: Surendra Singh Lilhore
> Assignee: Surendra Singh Lilhore
> Fix For: 3.0.0-alpha4
>
> Attachments: HDFS-11890-001.patch, HDFS-11890-002.patch
>
>
> {code}
> Exception in thread
> "org.apache.hadoop.hdfs.server.datanode.BlockRecoveryWorker$1@1c03e6ae"
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.datanode.BlockRecoveryWorker$RecoveryTaskContiguous.recover(BlockRecoveryWorker.java:131)
> at
> org.apache.hadoop.hdfs.server.datanode.BlockRecoveryWorker$1.run(BlockRecoveryWorker.java:596)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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