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Subject: Zookeepr shuting down.
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From: dhamodharan.ramalingam@tcs.com
Date: Tue, 25 Nov 2014 12:39:19 +0530
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Hi 

I have a cluster of 3 systems each of 32GB RAM and 1 TB HD. I have 
clustered all the three and able to start and run Hadoop Successfully.

I have installed Hbase on the master node. Now am trying to start 
Zookeeper in the cluster. When I start zookeeper and give command 
./zkServer.sh status its telling 'Zookeeper might not be running... '. 
When I start zookeeper on all Nodes, zookeper on Master node becomes 
follower and when an MR is run , It will run 90% on reducer part then 
throws error 'Not able to find the region server.'. When checked zookeeper 
logs, Am viewing 'Connection error'.

There is proper ssh across all 3 systems. I have tried giving iptables 
-flush too, but no luck!! 

I have tried another option by allowing Hbase to handle its own zookeeper. 
HQuarampeer starts successfully, and I am able to process 3GB file through 
MR for first time. But from second run zookeeper on one of the nodes 
getting killed. not able to figure out the issue. 

Please help!!!

Thanks & Regards
Dhamodharan

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