Hi What version of HBase are you using?
Regards Ram -----Original Message----- From: V.Sriram [mailto:srira...@ask.com] Sent: Tuesday, November 01, 2011 12:58 PM To: hbase-u...@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.
