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https://issues.apache.org/jira/browse/HDFS-6130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947626#comment-13947626
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Haohui Mai commented on HDFS-6130:
----------------------------------
The test failure is irrelevant. I'll commit it shortly.
> NPE when upgrading namenode from fsimages older than -32
> --------------------------------------------------------
>
> Key: HDFS-6130
> URL: https://issues.apache.org/jira/browse/HDFS-6130
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Fengdong Yu
> Assignee: Haohui Mai
> Priority: Blocker
> Attachments: HDFS-6130.000.patch, fsimage.tar.gz
>
>
> I want upgrade an old cluster(0.20.2-cdh3u1) to trunk instance,
> I can upgrade successfully if I don't configurage HA, but if HA enabled,
> there is NPE when I run ' hdfs namenode -initializeSharedEdits'
> {code}
> 14/03/20 15:06:41 INFO namenode.FSNamesystem: Retry cache on namenode is
> enabled
> 14/03/20 15:06:41 INFO namenode.FSNamesystem: Retry cache will use 0.03 of
> total heap and retry cache entry expiry time is 600000 millis
> 14/03/20 15:06:41 INFO util.GSet: Computing capacity for map
> NameNodeRetryCache
> 14/03/20 15:06:41 INFO util.GSet: VM type = 64-bit
> 14/03/20 15:06:41 INFO util.GSet: 0.029999999329447746% max memory 896 MB =
> 275.3 KB
> 14/03/20 15:06:41 INFO util.GSet: capacity = 2^15 = 32768 entries
> 14/03/20 15:06:41 INFO namenode.AclConfigFlag: ACLs enabled? false
> 14/03/20 15:06:41 INFO common.Storage: Lock on
> /data/hadoop/data1/dfs/name/in_use.lock acquired by nodename
> 7326@10-150-170-176
> 14/03/20 15:06:42 INFO common.Storage: Lock on
> /data/hadoop/data2/dfs/name/in_use.lock acquired by nodename
> 7326@10-150-170-176
> 14/03/20 15:06:42 INFO namenode.FSImage: No edit log streams selected.
> 14/03/20 15:06:42 INFO namenode.FSImageFormatPBINode: Loading 1 INodes.
> 14/03/20 15:06:42 FATAL namenode.NameNode: Exception in namenode join
> java.lang.NullPointerException
> at
> org.apache.hadoop.hdfs.server.namenode.FSDirectory.isReservedName(FSDirectory.java:2984)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageFormatPBINode$Loader.addToParent(FSImageFormatPBINode.java:205)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageFormatPBINode$Loader.loadINodeDirectorySection(FSImageFormatPBINode.java:162)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.loadInternal(FSImageFormatProtobuf.java:243)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.load(FSImageFormatProtobuf.java:168)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageFormat$LoaderDelegator.load(FSImageFormat.java:120)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:895)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:881)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImageFile(FSImage.java:704)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:642)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:271)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:894)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:653)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.initializeSharedEdits(NameNode.java:912)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1276)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1360)
> 14/03/20 15:06:42 INFO util.ExitUtil: Exiting with status 1
> 14/03/20 15:06:42 INFO namenode.NameNode: SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down NameNode at 10-150-170-176/10.150.170.176
> ************************************************************/
> {code}
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