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From Jitendra Yadav <jeetuyadav200...@gmail.com>
Subject Re: Secondary NameNode doCheckpoint Exception
Date Thu, 03 Oct 2013 10:06:00 GMT
When you said "started from java" does that means you are doing some
development work using eclipse and hadoop?

May be I'm not familiar with this kind of environment.

Regards
Jitendra


On Thu, Oct 3, 2013 at 3:24 PM, Furkan Bıçak <bicak.cs@gmail.com> wrote:

>  I don't have any problem when starting and stoping the cluster with
> scripts. I am having this problem when starting the cluster from Java.
>
> Also, when I start the cluster from Java, I can run map-reduce jobs and it
> succesfully finishes. However, after some time about 5 minutes when the
> secondary namenode is started, it tries the merge and then gives that error.
>
> Thanks,
> Frkn.
>
> On 03-10-2013 12:10, Jitendra Yadav wrote:
>
> Can you restart your cluster using below scripts and check the logs?
>
>  # stop-all.sh
> #start-all.sh
>
>  Regards
>  Jitendra
>
>
> On Thu, Oct 3, 2013 at 2:09 PM, Furkan Bıçak <bicak.cs@gmail.com> wrote:
>
>>  No, I started from scratch.
>>
>> Thanks,
>> Frkn.
>>
>>
>> On 03-10-2013 11:32, Jitendra Yadav wrote:
>>
>> Did you upgraded your cluster ?
>>
>>  Regards
>> Jitendra
>>
>>
>> On Thu, Oct 3, 2013 at 1:22 PM, Furkan Bıçak <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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