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HBase >> mail # user >> Re: Hbase cluster


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Jean-Marc Spaggiari 2012-10-04, 15:18
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Venkateswara Rao Dokku 2012-10-05, 04:39
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Venkateswara Rao Dokku 2012-10-04, 13:08
Hi Venkateswara,

What do you have on your master's logs? Do you have anything?

JM

2012/10/4, Venkateswara Rao Dokku <[EMAIL PROTECTED]>:
> Hi,
>    I configured 2 node hbase cluster with hadoop-0.20.2 & hbase 0.92.1. The
> installation went fine. One is the namenode & the other will act asa
> datanode as well as region server, from the region server I couldn't access
> HMaster. I was getting the following error when I try to scan the tables on
> the namenode
>
> hbase(main):001:0> list
> TABLE
>
>
> ERROR: org.apache.hadoop.hbase.MasterNotRunningException: Retried 7 times
>
> Here is some help for this command:
> List all tables in hbase. Optional regular expression parameter could
> be used to filter the output. Examples:
>
>   hbase> list
>   hbase> list 'abc.*'
>
> But when I see the processes running with jps command on name-node( master)
> & datanode(slave) I got the following list
> *namenode:*
> *
> *
> 6367 NameNode
> 6553 DataNode
> 7473 HMaster
> 7375 HQuorumPeer
> 6866 JobTracker
> 10391 Jps
> 6764 SecondaryNameNode
> 7041 TaskTracker
>
> *datanode:*
> *
> *
> 15710 TaskTracker
> 15556 DataNode
> 13126 -- process information unavailable
> 19259 Jps
> 13218 NC
> 15874 HRegionServer
>
> The following logs are logged into the hbase-region-server log file
> 2012-10-04 18:26:17,692 INFO
> org.apache.hadoop.hbase.regionserver.HRegionServer: Attempting connect to
> Master server at oc-PowerEdge-R610,60000,1349337115099
> 2012-10-04 18:27:18,491 WARN
> org.apache.hadoop.hbase.regionserver.HRegionServer: Unable to connect to
> master. Retrying. Error was:
> java.net.ConnectException: Connection refused
>         at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>         at
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
>         at
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>         at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupConnection(HBaseClient.java:328)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:362)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1045)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:897)
>         at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
>         at $Proxy7.getProtocolVersion(Unknown Source)
>         at
> org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
>         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
>         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)
>         at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:332)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:236)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getMaster(HRegionServer.java:1643)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1680)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:643)
>         at java.lang.Thread.run(Thread.java:662)
> I was struck here & couldn't get any help. Please help me out in rectifying
> the error.
> --
> Thanks & Regards,
> Venkateswara Rao Dokku,
> Software Engineer,One Convergence Devices Pvt Ltd.,
> Jubille Hills,Hyderabad.
>
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Venkateswara Rao Dokku 2012-10-04, 13:28