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From Steve Loughran <ste...@apache.org>
Subject Re: Hadoop Name node startup issue
Date Thu, 21 Oct 2010 09:29:54 GMT
On 21/10/10 09:12, Bala.Linux wrote:
> Hello All,
>
>          We are facing a problem in starting the hadoop name node
> instance. We are getting the following error :
>
> 2010-10-21 12:09:05,379 ERROR org.apache.hadoop.fs.FSNamesystem:
> FSNamesystem initialization failed.
> java.io.EOFException
>          at java.io.DataInputStream.readFully(DataInputStream.java:180)
>          at org.apache.hadoop.io.Text.readString(Text.java:412)
>          at
> org.apache.hadoop.fs.permission.PermissionStatus.readFields(PermissionStatus.java:84)
>          at
> org.apache.hadoop.fs.permission.PermissionStatus.read(PermissionStatus.java:98)
>          at org.apache.hadoop.dfs.FSEditLog.loadFSEdits(FSEditLog.java:483)
>          at org.apache.hadoop.dfs.FSImage.loadFSEdits(FSImage.java:849)
>          at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:675)
>          at
> org.apache.hadoop.dfs.FSImage.recoverTransitionRead(FSImage.java:289)
>          at
> org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java:80)
>          at
> org.apache.hadoop.dfs.FSNamesystem.initialize(FSNamesystem.java:294)
>          at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:273)
>          at org.apache.hadoop.dfs.NameNode.initialize(NameNode.java:148)
>          at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:193)
>          at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:179)
>          at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:830)
>          at org.apache.hadoop.dfs.NameNode.main(NameNode.java:839)
>
> Any help on this issue is much appreciated. Please refer the attachment
> for the name node logs.

Looks like some problem trying to replay the namenode logs on startup, 
the last record of the log is missing. You'll probably need to delete 
that last log entry in the fs edit log (I've never done it, so can't 
describe how)

-steve

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