Re: EOFException while starting name node

Mon, 04 Aug 2008 08:31:38 -0700
2008-08-03 21:58:33,108 INFO org.apache.hadoop.ipc.Server: Stopping server on 9000 2008-08-03 21:58:33,109 ERROR org.apache.hadoop.dfs.NameNode: java.io.EOFException 
        at java.io.DataInputStream.readFully(DataInputStream.java:178)
        at org.apache.hadoop.io.UTF8.readFields(UTF8.java:106)
        at org.apache.hadoop.io.ArrayWritable.readFields(ArrayWritable.java:90)
        at org.apache.hadoop.dfs.FSEditLog.loadFSEdits(FSEditLog.java:433)
        at org.apache.hadoop.dfs.FSImage.loadFSEdits(FSImage.java:759)
        at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:639)
at org.apache.hadoop.dfs.FSImage.recoverTransitionRead(FSImage.java: 222) 
        at org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java:79)
        at org.apache.hadoop.dfs.FSNamesystem.initialize(FSNamesystem.java:254)
        at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:235)
        at org.apache.hadoop.dfs.NameNode.initialize(NameNode.java:131)
        at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:176)
        at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:162)
        at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:846)
        at org.apache.hadoop.dfs.NameNode.main(NameNode.java:855)
Actually my exception is slightly different than yours. Maybe moving edits file 
and recreating a new one will work for you.


On Aug 4, 2008, at 2:53 AM, Wanjari, Amol wrote:


I'm getting the following exceptions while starting the name node -

ERROR dfs.NameNode: java.io.EOFException
       at java.io.DataInputStream.readInt(DataInputStream.java:375)
       at
org.apache.hadoop.io.ArrayWritable.readFields(ArrayWritable.java:87)
       at
org.apache.hadoop.dfs.FSEditLog.loadFSEdits(FSEditLog.java:455)
       at org.apache.hadoop.dfs.FSImage.loadFSEdits(FSImage.java:733)
       at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:620)
       at
org.apache.hadoop.dfs.FSImage.recoverTransitionRead(FSImage.java:222)
       at
org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java:76)
       at
org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:221)
       at org.apache.hadoop.dfs.NameNode.init(NameNode.java:130)
       at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:168)
       at
org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:795)
       at org.apache.hadoop.dfs.NameNode.main(NameNode.java:804)

Is there a way to recover the name node without losing any data.

Thanks,
Amol

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