Hi Azurry, This error occurs when FSImage finds previous fs state, and as log states you would need to either finalizeUpgrade or rollback to proceed.Below -
bin/hadoop dfsadmin –finalizeUpgrade hadoop dfsadmin –rollback On side note for a small test cluster on which one might suspect you are the only user, why wouldn't you insist on hot upgrade? :-) Thanks Rekha Some helpful guidelines for upgrade here - http://wiki.apache.org/hadoop/Hadoop_Upgrade https://twiki.grid.iu.edu/bin/view/Storage/HadoopUpgrade http://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/Federation.html#Upgrading_from_older_release_to_0.23_and_configuring_federation From: Azuryy Yu <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Thursday 21 November 2013 9:48 AM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: HDFS upgrade problem of fsImage Hi Dear, I have a small test cluster with hadoop-2.0x, and HA configuraded, but I want to upgrade to hadoop-2.2. I dont't want to stop cluster during upgrade, so my steps are: 1) on standby NN: hadoop-dameon.sh stop namenode 2) remove HA configuration in the conf 3) hadoop-daemon.sh start namenode -upgrade -clusterID test-cluster but Exception in the NN log, so how to upgrade and don't stop the whole cluster. Thanks. org.apache.hadoop.hdfs.server.common.InconsistentFSStateException: Directory /hdfs/name is in an inconsistent state: previous fs state should not exist during upgrade. Finalize or rollback first. at org.apache.hadoop.hdfs.server.namenode.FSImage.doUpgrade(FSImage.java:323) at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:248) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:858) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:620) at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:445) at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:494) at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:692) at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:677) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1279) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1345)
