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https://issues.apache.org/jira/browse/HDFS-6021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13913165#comment-13913165
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Jason Lowe commented on HDFS-6021:
----------------------------------
Stacktrace:
{noformat}
2014-02-26 17:03:11,755 FATAL [main] namenode.NameNode
(NameNode.java:main(1351)) - Exception in namenode join
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.loadInternal(FSImageFormatProtobuf.java:227)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormatProtobuf$Loader.load(FSImageFormatProtobuf.java:169)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$LoaderDelegator.load(FSImageFormat.java:225)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:802)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:792)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImageFile(FSImage.java:624)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:593)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.doUpgrade(FSImage.java:331)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:251)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:882)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:641)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:435)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:491)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:647)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:632)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1280)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1346)
{noformat}
> NPE in FSImageFormatProtobuf upgrading from layout -52 to -53
> -------------------------------------------------------------
>
> Key: HDFS-6021
> URL: https://issues.apache.org/jira/browse/HDFS-6021
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Jason Lowe
>
> While updating my trunk instance the namenode refused to startup because the
> layout version needed to be upgraded. When attempting the upgrade ran into
> an NPE in FSImageFormatProtobuf. Full stacktrace to follow.
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