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HBase, mail # user - HBase Master not running Exception


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Re: HBase Master not running Exception
Ted Yu 2013-07-23, 19:32
Which HBase release are you using ?

Mind showing us how you initialize the reduce tasks ?

Cheers

On Tue, Jul 23, 2013 at 12:26 PM, arun sirimalla <[EMAIL PROTECTED]>wrote:

> I am running mapreduce job to insert the data into HBase, Map phase is
> running fine, but when the reducer starts it fails on all nodes except one
> node and i notice below error on failed tasks. Out of 12 tasktrackers, one
> tasktracker can connect to HBase and insert the data. Class path is set on
> all nodes, but unable to figure out whats the root cause.  No issues with
> HBase, i can scan the tables.
>
> Caused by: java.lang.NoClassDefFoundError:
> org/apache/hadoop/hbase/MasterNotRunningException
>         at
> com.netapp.asupdata.configloader.hbase.HbaseConnectionManager.initializeAllConnections(HbaseConnectionManager.java:161)
>         at
> com.netapp.asupdata.configloader.mapreduce.AbstractLoaderReducer.configure(AbstractLoaderReducer.java:112)
>         at
> com.netapp.asupdata.configloader.mapreduce.BackfillLoaderReducer.configure(BackfillLoaderReducer.java:20)
>         ... 14 more
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hadoop.hbase.MasterNotRunningException
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>
> Thanks
> Arun
>