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From "shanmuganathan.r" <shanmuganatha...@zohocorp.com>
Subject Why the Master is waiting for the stopped regionserver?
Date Wed, 03 Aug 2011 13:07:33 GMT
Hi All,


      I have a problem in HBase fully distributed mode with four node cluster. My Hadoop and
zookeeper are working properly. The HBase also starting and running properly but it is not
stopped when I give the stop-hbase.sh command. 



--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
The log in my master is 


2011-08-03 18:29:20,156 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:21,156 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:22,156 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:23,157 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:24,157 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:25,157 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:26,158 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:27,158 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:28,158 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:29,158 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:30,159 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:31,159 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:32,160 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:33,160 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:34,160 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:35,161 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:36,161 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:37,161 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494
2011-08-03 18:29:38,162 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver(s)
to go down mageshv.zohocorpin.com,60020,1312376233494


-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



The log in my magesh regionserver is




2011-08-03 18:28:57,873 INFO org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation:
Closed zookeeper sessionid=0x2318fafe4950005
2011-08-03 18:28:57,876 INFO org.apache.zookeeper.ZooKeeper: Session: 0x2318fafe4950005 closed
2011-08-03 18:28:57,876 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down
2011-08-03 18:28:57,880 INFO org.apache.zookeeper.ZooKeeper: Session: 0x3318faeedc00002 closed
2011-08-03 18:28:57,880 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down
2011-08-03 18:28:57,882 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: regionserver60020
exiting
2011-08-03 18:28:57,883 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Shutdown hook
starting; hbase.shutdown.hook=true; fsShutdownHook=Thread[Thread-14,5,main]
2011-08-03 18:28:57,883 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: STOPPED:
Shutdown hook
2011-08-03 18:28:57,883 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Starting fs
shutdown hook thread.
2011-08-03 18:28:57,984 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Shutdown hook
finished.





--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


      Thanks in advance.....!


Regards,

Shanmuganathan



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