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From "V.Sriram" <srira...@ask.com>
Subject RE: Hbase Multiple Master issue
Date Tue, 01 Nov 2011 09:29:01 GMT

I am using 0.90.0 version

regards,
V.Sriram


Ramkrishna S Vasudevan wrote:
> 
> Hi  
> 
> What version of HBase are you using?
> 
> Regards
> Ram
> 
> 
> 
> -----Original Message-----
> From: V.Sriram [mailto:sriram.v@ask.com] 
> Sent: Tuesday, November 01, 2011 12:58 PM
> To: hbase-user@hadoop.apache.org
> Subject: Hbase Multiple Master issue
> 
> 
> Hi all,
> 
> I am evaluating HBase Multiple master utility as I require that
> funtionality. I used a simple 4 machine hbase cluster with M1 as master.
> Now
> I started the Hmaster in M4 as well. I could see logs in M4 Master log as,
> This HMaster is waiting as already M1 is acting as HMaster.
> 
> After this I stopped the Master in the M1 and after few seconds, the M4
> master took over. But I am not seeing any region server communicating to
> this new master. The region server logs show,
> 
> 2011-10-31 23:21:18,834 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:574)
>         at
> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:2
> 06)
>         at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClien
> t.java:311)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:865)
>         at
> org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:732)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257)
>         at $Proxy3.getProtocolVersion(Unknown Source)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:419)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:393)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:444)
>         at
> org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:349)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.getMaster(HRegionServer.j
> ava:1443)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.tryRegionServerReport(HRe
> gionServer.java:737)
>         at
> org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:58
> 6)
>         at java.lang.Thread.run(Thread.java:619)
> 
> Also in the M4 Master log I am seeing,
> 
> 2011-10-31 23:20:47,671 INFO org.apache.hadoop.http.HttpServer:
> listener.getLocalPort() returned 60010
> webServer.getConnectors()[0].getLocalPort() returned 60010
> 2011-10-31 23:20:47,671 INFO org.apache.hadoop.http.HttpServer: Jetty
> bound
> to port 60010
> 2011-10-31 23:20:47,671 INFO org.mortbay.log: jetty-6.1.26
> 2011-10-31 23:20:48,691 INFO org.mortbay.log: Started
> SelectChannelConnector@0.0.0.0:60010
> 2011-10-31 23:20:48,691 DEBUG org.apache.hadoop.hbase.master.HMaster:
> Started service threads
> 2011-10-31 23:20:50,192 INFO org.apache.hadoop.hbase.master.ServerManager:
> Waiting on regionserver(s) to checkin
> 2011-10-31 23:20:51,695 INFO org.apache.hadoop.hbase.master.ServerManager:
> Waiting on regionserver(s) to checkin
> 2011-10-31 23:20:53,197 INFO org.apache.hadoop.hbase.master.ServerManager:
> Waiting on regionserver(s) to checkin
> 
> Seems the region servers are only communicating to the M1 Hmaster and not
> to
> the new one!!
> 
> Any help regarding this is highly appreciated :handshake:
> -- 
> View this message in context:
> http://old.nabble.com/Hbase-Multiple-Master-issue-tp32757197p32757197.html
> Sent from the HBase User mailing list archive at Nabble.com.
> 
> 
> 

-- 
View this message in context: http://old.nabble.com/Hbase-Multiple-Master-issue-tp32757197p32757528.html
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