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. >
