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From Suresh V S <Sures...@igate.com>
Subject Region server not coming up
Date Mon, 11 Nov 2013 06:24:51 GMT
Dear all,

I had to change the IP address of a hbase region server in the cluster.  After effecting the
IP change, all services in cluster came up fine, but for the region server on this node.

Kindly advise how to solve this problem.

The log on the region server with the error portion is as below:

2013-11-08 13:41:13,780 DEBUG org.apache.hadoop.hbase.regionserver.CompactSplitThread: Waiting
for Large Compaction Thread to finish...
2013-11-08 13:41:13,780 DEBUG org.apache.hadoop.hbase.regionserver.CompactSplitThread: Waiting
for Small Compaction Thread to finish...
2013-11-08 13:41:13,795 WARN org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Node
/hbase/rs/harry,60020,1383898273175 already deleted, and this is not a retry
2013-11-08 13:41:13,795 WARN org.apache.hadoop.hbase.regionserver.HRegionServer: Failed deleting
my ephemeral node
org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /hbase/rs/harry,60020,1383898273175
        at org.apache.zookeeper.KeeperException.create(KeeperException.java:111)
        at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
        at org.apache.zookeeper.ZooKeeper.delete(ZooKeeper.java:873)
        at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.delete(RecoverableZooKeeper.java:127)
        at org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNode(ZKUtil.java:974)
        at org.apache.hadoop.hbase.zookeeper.ZKUtil.deleteNode(ZKUtil.java:963)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.deleteMyEphemeralNode(HRegionServer.java:1037)
        at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:815)
        at java.lang.Thread.run(Thread.java:662)
2013-11-08 13:41:13,812 INFO org.apache.zookeeper.ZooKeeper: Session: 0x14231e9cc68000c closed
2013-11-08 13:41:13,812 INFO org.apache.zookeeper.ClientCnxn: EventThread shut down
2013-11-08 13:41:13,812 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: stopping
server null; zookeeper connection closed.
2013-11-08 13:41:13,813 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: regionserver60020
exiting
2013-11-08 13:41:13,813 INFO org.apache.hadoop.hbase.regionserver.ShutdownHook: Shutdown hook
starting; hbase.shutdown.hook=true; fsShutdownHook=org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@225f1ae9<mailto:fsShutdownHook=org.apache.hadoop.fs.FileSystem$Cache$ClientFinalizer@225f1ae9>

Suresh.




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