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From Ali Raza <ali.r...@ifkaar.com>
Subject RE: Hbase client do not able to connect with remote Hbase server
Date Tue, 18 Oct 2011 12:49:00 GMT
No there is no proxy between machines.
Regards Syed Ali Raza

----------------------------------------
From: "Ramkrishna S Vasudevan [via Apache HBase]" <ml-node+s679495n3431121h48@n3.nabble.com>
Sent: Tuesday, October 18, 2011 5:38 PM
To: Ali Raza <ali.raza@ifkaar.com>
Subject: RE: Hbase client do not able to connect with remote Hbase server 

Any proxy between the machines where client and HBase cluster is running?
Regards
Ram

-----Original Message-----
From: Ali Raza [mailto:[hidden email]] 
Sent: Tuesday, October 18, 2011 12:44 PM
To: [hidden email]
Subject: Hbase client do not able to connect with remote Hbase server

i have written a following hbase client class for remote server:

System.out.println("Hbase Demo Application ");

            // CONFIGURATION

                // ENSURE RUNNING
            try {
                HBaseConfiguration config = new HBaseConfiguration();
                config.clear();
                config.set("hbase.zookeeper.quorum", "192.168.15.20");
                config.set("hbase.zookeeper.property.clientPort","2181");
                config.set("hbase.master", "192.168.15.20:60000");
                //HBaseConfiguration config = HBaseConfiguration.create();
    //config.set("hbase.zookeeper.quorum", "localhost");  // Here we are
running zookeeper locally
                HBaseAdmin.checkHBaseAvailable(config);

                System.out.println("HBase is running!");
            //  createTable(config);    
                //creating a new table
                HTable table = new HTable(config, "mytable");
                System.out.println("Table mytable obtained ");  
                addData(table);
            } catch (MasterNotRunningException e) {
                System.out.println("HBase is not running!");
                System.exit(1);
            }catch (Exception ce){ ce.printStackTrace();
it is throwing some exception:

Oct 17, 2011 1:43:54 PM
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation
getMaster
INFO: getMaster attempt 0 of 1 failed; no more retrying.
java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
    at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:2
06)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
    at
org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClien
t.java:328)
    at
org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:883)
    at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:750)
    at
org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257)
    at $Proxy4.getProtocolVersion(Unknown Source)
    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:419)
    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:393)
    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:444)
    at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.
getMaster(HConnectionManager.java:359)
    at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:89)
    at
org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.jav
a:1215)
    at com.ifkaar.hbase.HBaseDemo.main(HBaseDemo.java:31)
HBase is not running!

can you tell me why is it throwing an exception, what is wrong with code and
how to solve it?

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