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Hadoop >> mail # user >> Re: namenode is failing


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Re: namenode is failing
If you move the NN dir, you also have to move its older location's
contents there before starting the NN.

On Thu, Feb 28, 2013 at 1:28 PM, Mohit Vadhera
<[EMAIL PROTECTED]> wrote:
> Hi Guys,
>
> Namenode switches into safemode when it has low disk space on the root fs /
> i have to manually run a command to leave it
> I have space on other partition. Can I change the path for cache files on
> other partition ? I have below properties . Can it resolve the issue ? If i
> change the path to other directories and restart services I get the below
> error while starting the service namenode. I didn't find anything in logs so
> far.  Can you please suggest something ?
>
>   <property>
>      <name>hadoop.tmp.dir</name>
>      <value>/var/lib/hadoop-hdfs/cache/${user.name}</value>
>   </property>
>   <property>
>      <name>dfs.namenode.name.dir</name>
>      <value>/var/lib/hadoop-hdfs/cache/${user.name}/dfs/name</value>
>   </property>
>   <property>
>      <name>dfs.namenode.checkpoint.dir</name>
>
> <value>/var/lib/hadoop-hdfs/cache/${user.name}/dfs/namesecondary</value>
>   </property>
>   <property>
>
>
> Service namenode is failing
>
> # for service in /etc/init.d/hadoop-hdfs-* ; do sudo $service status; done
> Hadoop datanode is running                                 [  OK  ]
> Hadoop namenode is dead and pid file exists                [FAILED]
> Hadoop secondarynamenode is running                        [  OK  ]
>
> Thanks,
>

--
Harsh J
+
YouPeng Yang 2013-03-02, 02:11
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB