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https://issues.apache.org/jira/browse/HDFS-11890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049346#comment-16049346
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Brahma Reddy Battula commented on HDFS-11890:
---------------------------------------------
[~surendrasingh] thanks for reporting and working on this.
can we've one common method for this..? may be like below..?
{code}
DatanodeID getDatanodeID() throws IOException {
BPOfferService bpos = datanode.getBPOfferService(bpid);
if (bpos == null) {
throw new IOException("No block pool offer service for bpid="
+ bpid);
}
return new DatanodeID(bpos.bpRegistration);
}
{code}
> 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
> Attachments: HDFS-11890-001.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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