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From "Yongjun Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9697) NN fails to restart due to corrupt fsimage caused by snapshot handling
Date Mon, 25 Jan 2016 18:48:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yongjun Zhang updated HDFS-9697:
--------------------------------
    Summary: NN fails to restart due to corrupt fsimage caused by snapshot handling  (was:
NN fails to restart due to corrupt fsimage)

> NN fails to restart due to corrupt fsimage caused by snapshot handling
> ----------------------------------------------------------------------
>
>                 Key: HDFS-9697
>                 URL: https://issues.apache.org/jira/browse/HDFS-9697
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Yongjun Zhang
>            Assignee: Yongjun Zhang
>
> This is related to HDFS-9406, but not quite the same symptom.
> {quote}
> ERROR namenode.NameNode: Failed to start namenode.
> java.lang.NullPointerException
> 	at org.apache.hadoop.hdfs.server.namenode.snapshot.FSImageFormatPBSnapshot$Loader.loadINodeReference(FSImageFormatPBSnapshot.java:114)
> 	at org.apache.hadoop.hdfs.server.namenode.snapshot.FSImageFormatPBSnapshot$Loader.loadINodeReferenceSection(FSImageFormatPBSnapshot.java:105)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.loadInternal(FSImageFormatProtobuf.java:258)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.load(FSImageFormatProtobuf.java:180)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImageFormat$LoaderDelegator.load(FSImageFormat.java:226)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:929)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:913)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImageFile(FSImage.java:732)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:668)
> 	at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:281)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1062)
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:766)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:589)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:646)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:818)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:797)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1493)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1561)
> {quote}



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