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From "Vinay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5529) { Disk Fail } Can we shutdown the DN when it meet's disk failed condition
Date Thu, 21 Nov 2013 08:40:36 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13828602#comment-13828602
] 

Vinay commented on HDFS-5529:
-----------------------------

This issue is same as HDFS-2882 this is also one of the reason to fail the initialization
of Blockpool as mentioned in HDFS-2882
Latest patch attached to HDFS-2882 can make the datanode shutdown in this case. 

> { Disk Fail } Can we shutdown the DN when it meet's disk failed condition
> -------------------------------------------------------------------------
>
>                 Key: HDFS-5529
>                 URL: https://issues.apache.org/jira/browse/HDFS-5529
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Brahma Reddy Battula
>
> Scenario :
> ========
> had configured the two dir's for the datanode
> One dir is not having the permissions,Hence is throwing following exception and getting
NPE while sending the heartbeat..
> {noformat}
> 2013-11-19 17:35:26,599 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization
failed for block pool Block pool BP-994471486-10.18.40.21-1384754500555 (storage id DS-1184111760-10.18.40.38-50010-1384862726499)
service to HOST-10-18-91-26/10.18.40.21:8020
> org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current
valid volumes: 1, volumes configured: 2, volumes failed: 1, volume failures tolerated: 0
>         at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.<init>(FsDatasetImpl.java:202)
>         at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:34)
>         at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:30)
>         at org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:966)
>         at org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java:928)
>         at org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceInfo(BPOfferService.java:285)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:222)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:664)
>         at java.lang.Thread.run(Thread.java:662)
> 2013-11-19 17:35:26,602 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Ending
block pool service for: Block pool BP-994471486-10.18.40.21-1384754500555 (storage id DS-1184111760-10.18.40.38-50010-1384862726499)
service to HOST-10-18-91-26/10.18.40.21:8020
> 2013-11-19 17:35:26,602 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool
BP-994471486-10.18.40.21-1384754500555 (storage id DS-1184111760-10.18.40.38-50010-1384862726499)
service to linux-hadoop/10.18.40.14:8020 beginning handshake with NN
> 2013-11-19 17:35:26,648 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool
Block pool BP-994471486-10.18.40.21-1384754500555 (storage id DS-1184111760-10.18.40.38-50010-1384862726499)
service to linux-hadoop/10.18.40.14:8020 successfully registered with NN
> 2013-11-19 17:35:26,648 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: For namenode
linux-hadoop/10.18.40.14:8020 using DELETEREPORT_INTERVAL of 300000 msec  BLOCKREPORT_INTERVAL
of 21600000msec Initial delay: 0msec; heartBeatInterval=3000
> 2013-11-19 17:35:26,649 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Exception
in BPOfferService for Block pool BP-994471486-10.18.40.21-1384754500555 (storage id DS-1184111760-10.18.40.38-50010-1384862726499)
service to linux-hadoop/10.18.40.14:8020
> java.lang.NullPointerException
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.sendHeartBeat(BPServiceActor.java:439)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:525)
>         at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:676)
>         at java.lang.Thread.run(Thread.java:662)
> {noformat}



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