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From syed kather <in.ab...@gmail.com>
Subject HConnectionManager get closed
Date Wed, 18 Jul 2012 16:07:03 GMT
Team ,
   While Running the Map Reduce Program on 3 node cluster . i had noticed
that one of node is throw Error most often

java.lang.RuntimeException: java.io.IOException:
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@34af863e
closed
	at org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputFormat.java:200)
	at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:62)
	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
	at org.apache.hadoop.mapred.Task.initialize(Task.java:513)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:353)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
	at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: java.io.IOException:
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@34af863e
closed
	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:794)
	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:782)
	at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:249)
	at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:213)
	at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:171)
	at org.apache.hadoop.hbase.mapreduce.TableOutputFormat.setConf(TableOutputFormat.java:195)
	... 9 more


Please help me .
            Thanks and Regards,
        S SYED ABDUL KATHER

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