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From Ted Yu <yuzhih...@gmail.com>
Subject Re: HBase MapReduce problem
Date Tue, 04 Feb 2014 04:41:59 GMT
Murali:
Are you using 0.96.1.1 ?
Can you show us the command line you used ?

Meanwhile I assume the HBase cluster is functional - you can use shell to
insert data.

Cheers


On Mon, Feb 3, 2014 at 8:33 PM, Murali <muralidharan@veradistech.com> wrote:

> Hi Ted,
>
>    I am using HBase 0.96 version. But I am also getting the below error
> message
>
> 14/02/03 10:18:32 ERROR mapreduce.TableOutputFormat:
> org.apache.hadoop.hbase.client.NoServerForRegionException: Unable to find
> region for  after 35 tries.
> Exception in thread "main" java.lang.RuntimeException:
> org.apache.hadoop.hbase.client.NoServerForRegionException: Unable to find
> region for  after 35 tries.
>         at
>
> org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputForma
> t.java:211)
>         at
> org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:73)
>         at
>
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
>         at
> org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:453)
>         at
>
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java
> :342)
>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1268)
>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1265)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at
>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.ja
> va:1491)
>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:1265)
>         at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1286)
>         at com.hbase.HBaseWC.run(HBaseWC.java:78)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
>         at com.hbase.HBaseWC.main(HBaseWC.java:83)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39
> )
>         at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
> .java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> Caused by: org.apache.hadoop.hbase.client.NoServerForRegionException:
> Unable
> to find region for  after 35 tries.
>         at
>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.
> locateRegionInMeta(HConnectionManager.java:1127)
>         at
>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.
> locateRegion(HConnectionManager.java:1047)
>         at
>
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.
> locateRegion(HConnectionManager.java:1004)
>         at
> org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:325)
>         at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:191)
>         at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:149)
>         at
>
> org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputForma
> t.java:206)
>         ... 19 more
>
>  May I know how to fix it?
>
> Thanks
>
>

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