Brahma Reddy Battula created HDFS-3415:
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Summary: NameNode is getting shutdown by throwing nullpointer
exception when one of the layout version is different with others(Multiple
storage dirs are configured)
Key: HDFS-3415
URL: https://issues.apache.org/jira/browse/HDFS-3415
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 2.0.0, 3.0.0
Environment: Suse linux + jdk 1.6
Reporter: Brahma Reddy Battula
Fix For: 2.0.0, 3.0.0
Scenario:
=========
start Namenode and datanode by configuring three storage dir's for namenode
write 10 files
edit version file of one of the storage dir and give layout version as 123
which different with default(-40).
Stop namenode
start Namenode.
Then I am getting follwong exception...
{noformat}
2012-05-13 19:01:41,483 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode:
Exception in namenode join
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.namenode.NNStorage.getStorageFile(NNStorage.java:686)
at
org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getEditsInStorageDir(FSImagePreTransactionalStorageInspector.java:243)
at
org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getLatestEditsFiles(FSImagePreTransactionalStorageInspector.java:261)
at
org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getEditLogStreams(FSImagePreTransactionalStorageInspector.java:276)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:596)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:247)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:498)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:390)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:354)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:368)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:402)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:564)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:545)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1093)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1151)
2012-05-13 19:01:41,485 INFO org.apache.hadoop.hdfs.server.namenode.NameNode:
SHUTDOWN_MSG:
{noformat}
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