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From "dhruba Borthakur" <dhr...@yahoo-inc.com>
Subject RE: org.apache.hadoop.dfs.NameNode: java.lang.NullPointerException
Date Mon, 03 Mar 2008 07:30:22 GMT
Hi Andre,

Is it possible for you to let me look at your entire Namenode log?

Thanks,
dhruba

-----Original Message-----
From: André Martin [mailto:mail@andremartin.de] 
Sent: Saturday, March 01, 2008 4:32 PM
To: core-user@hadoop.apache.org
Subject: org.apache.hadoop.dfs.NameNode: java.lang.NullPointerException

Hi everyone,
the namenode doesn't re-start properly:

> 2008-03-02 01:25:25,120 INFO org.apache.hadoop.dfs.NameNode: STARTUP_MSG:
> /************************************************************
> STARTUP_MSG: Starting NameNode
> STARTUP_MSG:   host = se09/141.76.xxx.xxx
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 2008-02-28_11-01-44
> STARTUP_MSG:   build = 
> http://svn.apache.org/repos/asf/hadoop/core/trunk -r 631915; compiled 
> by 'hudson' on Thu Feb 28 11:11:52 UTC 2008
> ************************************************************/
> 2008-03-02 01:25:25,247 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
> Initializing RPC Metrics with serverName=NameNode, port=8000
> 2008-03-02 01:25:25,254 INFO org.apache.hadoop.dfs.NameNode: Namenode 
> up at: se09.inf.tu-dresden.de/141.76.44.xxx:xxx
> 2008-03-02 01:25:25,257 INFO org.apache.hadoop.metrics.jvm.JvmMetrics: 
> Initializing JVM Metrics with processName=NameNode, sessionId=null
> 2008-03-02 01:25:25,260 INFO org.apache.hadoop.dfs.NameNodeMetrics: 
> Initializing NameNodeMeterics using context 
> object:org.apache.hadoop.metrics.spi.NullContext
> 2008-03-02 01:25:25,358 INFO org.apache.hadoop.fs.FSNamesystem: 
> fsOwner=amartin,students
> 2008-03-02 01:25:25,359 INFO org.apache.hadoop.fs.FSNamesystem: 
> supergroup=supergroup
> 2008-03-02 01:25:25,359 INFO org.apache.hadoop.fs.FSNamesystem: 
> isPermissionEnabled=true
> 2008-03-02 01:25:29,887 ERROR org.apache.hadoop.dfs.NameNode: 
> java.lang.NullPointerException
>     at 
> org.apache.hadoop.dfs.FSImage.readINodeUnderConstruction(FSImage.java:950)
>     at 
> org.apache.hadoop.dfs.FSImage.loadFilesUnderConstruction(FSImage.java:919)
>     at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:749)
>     at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:634)
>     at 
> org.apache.hadoop.dfs.FSImage.recoverTransitionRead(FSImage.java:223)
>     at org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java:79)
>     at 
> org.apache.hadoop.dfs.FSNamesystem.initialize(FSNamesystem.java:261)
>     at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:242)
>     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:851)
>     at org.apache.hadoop.dfs.NameNode.main(NameNode.java:860)
>
> 2008-03-02 01:25:29,888 INFO org.apache.hadoop.dfs.NameNode: 
> SHUTDOWN_MSG:
> /************************************************************
> SHUTDOWN_MSG: Shutting down NameNode at se09/141.76.xxx.xxx
> ************************************************************/
Any ideas? Looks like a bug...

Cu on the 'net,
                        Bye - bye,

                                   <<<<< André <<<< >>>>
èrbnA >>>>>



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