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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6103) FSImage file system image version check throw a (slightly) wrong parameter.
Date Sun, 16 Mar 2014 08:18:43 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Akira AJISAKA updated HDFS-6103:
--------------------------------

    Attachment: HDFS-6103.patch

Attaching a patch.

> 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
>            Assignee: Akira AJISAKA
>            Priority: Trivial
>         Attachments: HDFS-6103.patch
>
>
> 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



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