Brahma Reddy Battula created HDFS-3415: ------------------------------------------
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} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira