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Hadoop, mail # user - stuck in safe mode after restarting dfs after found dead node


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Re: stuck in safe mode after restarting dfs after found dead node
Edward Capriolo 2012-07-13, 15:10
If the datanode is not coming back you have to explicitly tell hadoop
to leave safemode.

http://hadoop.apache.org/common/docs/r0.17.2/hdfs_user_guide.html#Safemode

hadoop dfsadmin -safemode leave
On Fri, Jul 13, 2012 at 9:35 AM, Juan Pino <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I can't get HDFS to leave safe mode automatically. Here is what I did:
>
> -- there was a dead node
> -- I stopped dfs
> -- I restarted dfs
> -- Safe mode wouldn't leave automatically
>
> I am using hadoop-1.0.2
>
> Here are the logs:
>
> end of hadoop-hadoop-namenode.log (attached):
>
> 2012-07-13 13:22:29,372 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
> mode ON.
> The ratio of reported blocks 0.9795 has not reached the threshold 0.9990.
> Safe mode will be turned off automatically.
> 2012-07-13 13:22:29,375 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe
> mode extension entered.
> The ratio of reported blocks 0.9990 has reached the threshold 0.9990. Safe
> mode will be turned off automatically in 29 seconds.
> 2012-07-13 13:22:29,375 INFO org.apache.hadoop.hdfs.StateChange: *BLOCK*
> NameSystem.processReport: from , blocks: 3128, processing time: 4 msecs
> 2012-07-13 13:31:29,201 INFO org.apache.hadoop.hdfs.StateChange: BLOCK*
> NameSystem.processReport: discarded non-initial block report from because
> namenode still in startup phase
>
> Any help would be greatly appreciated.
>
> Best,
>
> Juan
>