Hbase Client not able to connect with remote Hbase server

0 votes

Code to connect 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$HConnectionImplementation getMaster
INFO: getMaster attempt 0 of 1 failed; no more retrying.
java.net.ConnectException: Connection refused
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
    at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:404)
    at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.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.java:1215)
    at com.ifkaar.hbase.HBaseDemo.main(HBaseDemo.java:31)
HBase is not running!
Nov 8, 2018 in Big Data Hadoop by digger
• 26,740 points
5,436 views

1 answer to this question.

0 votes

You have to remove the localhost entry from hbase server's /etc/hosts file. Put the localhost entry in front of hbase server ip .

For example, your hbase server's /etc/hosts files seems like this:

127.0.0.1 localhost
192.169.23.45 xyz.hbase.com hbase

You have to change it like this by removing localhost:

# 127.0.0.1 localhost # line commented out
192.169.23.45 xyz.hbase.com hbase localhost # note: localhost added here
answered Nov 8, 2018 by Omkar
• 69,220 points

Related Questions In Big Data Hadoop

+1 vote
1 answer

Client not able to connect to cluster

There could be multiple reasons: Make sure you ...READ MORE

answered Sep 23, 2019 in Big Data Hadoop by Rishi
870 views
0 votes
1 answer

Not able to start Job History Server in Hadoop 2.8.1

You have to start JobHistoryServer process specifically ...READ MORE

answered Mar 30, 2018 in Big Data Hadoop by Ashish
• 2,650 points
2,562 views
0 votes
1 answer

NodeManager is not able to connect to the ResourceManager.

Here, I guess the issue is with ...READ MORE

answered May 1, 2018 in Big Data Hadoop by Shubham
• 13,490 points
3,858 views
0 votes
3 answers

How to connect Spark to a remote Hive server?

JDBC is not required here. Create a hive ...READ MORE

answered Mar 8, 2019 in Big Data Hadoop by Vijay Dixon
• 190 points
12,737 views
0 votes
13 answers

What is the difference between Hadoop/HDFS & HBase?

HDFS is a distributed file system whereas ...READ MORE

answered Apr 26, 2019 in Big Data Hadoop by Arihar
• 160 points
33,712 views
0 votes
1 answer
0 votes
1 answer

What is MSLAB and LZO?

MSLAB stands for Memstore-Local Allocation Buffer. Lempel-Ziv-Oberhumer (LZO) ...READ MORE

answered Jul 10, 2018 in Database by Data_Nerd
• 2,390 points
1,255 views
0 votes
1 answer

Table design approach Hbase

Tall-Narrow and Flat-Wide are the two HBase ...READ MORE

answered Jul 10, 2018 in Database by Data_Nerd
• 2,390 points
1,939 views
0 votes
1 answer

Not able to start namenode with ./start-all.sh

Try this: stop all the daemons: ./stop-all.sh format the namenode: cd ...READ MORE

answered Jan 3, 2019 in Big Data Hadoop by Omkar
• 69,220 points
2,192 views
+2 votes
5 answers

Not able to start hadoop dfs

You can re-install openssh-client and openssh-server: $ sudo ...READ MORE

answered Oct 25, 2018 in Big Data Hadoop by Jino
3,056 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP