Tassapol Athiapinya created HDFS-5982:
-----------------------------------------
Summary: Restarting Namenode can have NPE.
Key: HDFS-5982
URL: https://issues.apache.org/jira/browse/HDFS-5982
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.3.0
Reporter: Tassapol Athiapinya
Priority: Critical
Fix For: 2.3.0
I stopped, started Namenode with no operations and hit into an issue when NN
cannot start up again. There is NPE in NN logs.
{code}
2014-02-19 01:59:04,616 FATAL org.apache.hadoop.hdfs.server.namenode.NameNode:
Exception in namenode join
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat.loadFileDiff(SnapshotFSImageFormat.java:131)
at
org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotFSImageFormat.loadFileDiffList(SnapshotFSImageFormat.java:111)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadINode(FSImageFormat.java:688)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadINodeWithLocalName(FSImageFormat.java:636)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadChildren(FSImageFormat.java:468)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadDirectoryWithSnapshot(FSImageFormat.java:510)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadDirectoryWithSnapshot(FSImageFormat.java:519)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadDirectoryWithSnapshot(FSImageFormat.java:519)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadDirectoryWithSnapshot(FSImageFormat.java:519)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadDirectoryWithSnapshot(FSImageFormat.java:519)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.loadLocalNameINodesWithSnapshot(FSImageFormat.java:412)
at
org.apache.hadoop.hdfs.server.namenode.FSImageFormat$Loader.load(FSImageFormat.java:350)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:832)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:821)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImageFile(FSImage.java:669)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:638)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:265)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:856)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:616)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:434)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:490)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:646)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:631)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1270)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1336)
2014-02-19 01:59:04,619 INFO org.apache.hadoop.util.ExitUtil: Exiting with
status 1
{code}
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