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From Murali <muralidha...@veradistech.com>
Subject Re: HBase MapReduce problem
Date Tue, 04 Feb 2014 04:33:28 GMT
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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