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From Furkan Bıçak <bicak...@gmail.com>
Subject Re: Secondary NameNode doCheckpoint Exception
Date Thu, 03 Oct 2013 08:38:41 GMT
Hi,

Content of the VERSION file of NameNode is as follows:
-----------------------------------------------------
#Thu Oct 03 11:20:57 EEST 2013
namespaceID=1005981884
cTime=0
storageType=NAME_NODE
layoutVersion=-41
-----------------------------------------------------

However, I could not find any VERSION file for Secondary NameNode. Just 
to mention, I am using Pseudo-Distributed Mode.

Thanks.

On 03-10-2013 11:23, Jitendra Yadav wrote:
> Hi,
>
> There is some layout Version value issue in your VERSION file. Can you 
> please share the VERSION file content from NN and SNN ?
>
> ${dfs.name.dir}/current/VERSION
>
> Regards
> Jitendra
>
>
> On Thu, Oct 3, 2013 at 1:22 PM, Furkan Bıçak <bicak.cs@gmail.com 
> <mailto:bicak.cs@gmail.com>> wrote:
>
>     On 03-10-2013 10:44, Furkan Bıçak wrote:
>
>         Hi Everyone,
>
>         I am starting my hadoop cluster manually from Java which works
>         fine until some time. When secondary NameNode tries to do
>         merge it gives me the following exception:
>
>         ---------------------------
>         13/10/03 10:29:38 ERROR namenode.SecondaryNameNode: Throwable
>         Exception in doCheckpoint:
>         13/10/03 10:29:38 ERROR namenode.SecondaryNameNode:
>         java.lang.AssertionError: Negative layout version is expected.
>             at
>         org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:857)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.doMerge(SecondaryNameNode.java:780)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.access$600(SecondaryNameNode.java:680)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doMerge(SecondaryNameNode.java:557)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:521)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doWork(SecondaryNameNode.java:396)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.run(SecondaryNameNode.java:360)
>             at java.lang.Thread.run(Thread.java:724)
>
>         java.lang.AssertionError: Negative layout version is expected.
>             at
>         org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:857)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.doMerge(SecondaryNameNode.java:780)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode$CheckpointStorage.access$600(SecondaryNameNode.java:680)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doMerge(SecondaryNameNode.java:557)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doCheckpoint(SecondaryNameNode.java:521)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.doWork(SecondaryNameNode.java:396)
>             at
>         org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.run(SecondaryNameNode.java:360)
>             at java.lang.Thread.run(Thread.java:724)
>         ---------------------------
>
>         What causes this exception to occur?
>         Any help would be appreciated!
>
>         Kind Regards,
>
>         Furkan Bicak.
>
>     I forgot to mention the hadoop version. I am using hadoop 1.2.1
>     version.
>
>     Thanks.
>
>


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