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jun aoki commented on HDFS-6103: -------------------------------- Hi [~vinayrpet], I got the error message when I executed {code} sudo service hadoop-hdfs-namenode start {code} Then I found that I'd have to execute {code} sudo service hadoop-hdfs-namenode upgrade #(1) {code} Note that this does not have a hyphen e.g. "-upgrade" I also have found that users can execute hadoop-daemon.sh. I've never tried it this way but something like {code} hadoop-daemon.sh --config /etc/hadoop start namenode -upgrade # (2) {code} Then this will require a hyphen. I thought (1) is a preferred way thus this ticket, but if I'm wrong and (2) is equally or more preferred, please let me know. > FSImage file system image version check throw a (slightly) wrong parameter. > --------------------------------------------------------------------------- > > Key: HDFS-6103 > URL: https://issues.apache.org/jira/browse/HDFS-6103 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: 2.2.0 > Reporter: jun aoki > Priority: Trivial > > Trivial error message issue: > When upgrading hdfs, say from 2.0.5 to 2.2.0, users will need to start > namenode with "upgrade" option. > e.g. > {code} > sudo service namenode upgrade > {code} > That said, the actual error while without the option said "-upgrade" (with a > hyphen) > {code} > 2014-03-13 23:38:15,488 FATAL > org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join > java.io.IOException: > File system image contains an old layout version -40. > An upgrade to version -47 is required. > Please restart NameNode with -upgrade option. > at > org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:221) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:787) > at > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:568) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:443) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:491) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:684) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:669) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1254) > at > org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1320) > 2014-03-13 23:38:15,492 INFO org.apache.hadoop.util.ExitUtil: Exiting with > status 1 > 2014-03-13 23:38:15,493 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: > SHUTDOWN_MSG: > /************************************************************ > SHUTDOWN_MSG: Shutting down NameNode at nn1/192.168.2.202 > ************************************************************/ > ~ > {code} > I'm referring to 2.0.5 above, > https://github.com/apache/hadoop-common/blob/branch-2.0.5/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L225 > I haven't tried the trunk but it seems to return "UPGRADE" (all upper case) > which again anther slightly wrong error description. > https://github.com/apache/hadoop-common/blob/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImage.java#L232 -- This message was sent by Atlassian JIRA (v6.2#6252)