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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4201) NPE in BPServiceActor#sendHeartBeat
Date Tue, 10 Dec 2013 17:27:10 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13844441#comment-13844441
] 

Jimmy Xiang commented on HDFS-4201:
-----------------------------------

The javadoc warnings are not related to patch: https://builds.apache.org/job/PreCommit-HDFS-Build/5685/artifact/trunk/patchprocess/patchJavadocWarnings.txt

The audit warning is due to some memory issue:
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 172104 bytes for Arena::Amalloc
# An error report file with more information is saved as:
# /home/jenkins/jenkins-slave/workspace/PreCommit-HDFS-Build/trunk/hs_err_pid24616.log

Trying the hadoop-qa again.

> NPE in BPServiceActor#sendHeartBeat
> -----------------------------------
>
>                 Key: HDFS-4201
>                 URL: https://issues.apache.org/jira/browse/HDFS-4201
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Eli Collins
>            Assignee: Jimmy Xiang
>            Priority: Critical
>             Fix For: 3.0.0
>
>         Attachments: trunk-4201.patch, trunk-4201_v2.patch, trunk-4201_v3.patch
>
>
> Saw the following NPE in a log.
> Think this is likely due to {{dn}} or {{dn.getFSDataset()}} being null, (not {{bpRegistration}})
due to a configuration or local directory failure.
> {code}
> 2012-09-25 04:33:20,782 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: For namenode
svsrs00127/11.164.162.226:8020 using DELETEREPORT_INTERVAL of 300000 msec  BLOCKREPORT_INTERVAL
of 21600000msec Initial delay: 0msec; heartBeatInterval=3000
> 2012-09-25 04:33:20,782 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Exception
in BPOfferService for Block pool BP-1678908700-11.164.162.226-1342785481826 (storage id DS-1031100678-11.164.162.251-5010-1341933415989)
service to svsrs00127/11.164.162.226:8020
> java.lang.NullPointerException
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.sendHeartBeat(BPServiceActor.java:434)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:520)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:673)
>         at java.lang.Thread.run(Thread.java:722)
> {code}



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