HBase Java client can't reach to remote HBase region server

Question

I've started a standalone HBase in a server(192.168.36.42)

Client Side

package com.test;

import java.util.ArrayList;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;

public class HBaseClient {

    public static void main(String[] args) throws Exception {
        Configuration config = HBaseConfiguration.create();
        System.out.println("IP Address : " + config.get("hbase.zookeeper.quorum"));

        HTable table = new HTable(config, "test_table");
        ArrayList<Put> data = new ArrayList<Put>();
        Put p = new Put("row3".getBytes());
        p.add("field1".getBytes(), "qualifier".getBytes(), "value".getBytes());

        table.put(data);
        table.flushCommits();

        data.clear();
        table.close();
        System.out.println("close table");
    }
}

Here's the console output of client side :

14/02/26 16:21:31 INFO ipc.HBaseRPC: Server at BJ-NQ-V-CR002/192.168.36.42:44525 could not be reached after 1 tries, giving up.
14/02/26 16:21:33 INFO ipc.HBaseRPC: Server at BJ-NQ-V-CR002/192.168.36.42:44525 could not be reached after 1 tries, giving up.
14/02/26 16:21:35 INFO ipc.HBaseRPC: Server at BJ-NQ-V-CR002/192.168.36.42:44525 could not be reached after 1 tries, giving up.
14/02/26 16:21:37 INFO ipc.HBaseRPC: Server at BJ-NQ-V-CR002/192.168.36.42:44525 could not be reached after 1 tries, giving up.

Client side /etc/host:

192.168.36.42   BJ-NQ-V-CR002

hbase-site.xml

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property>
    <name>hbase.zookeeper.quorum</name>
    <value>BJ-NQ-V-CR002</value>
  </property>
  <property>
    <name>hbase.zookeeper.property.clientPort</name>
    <value>2181</value>
  </property>
</configuration>

Server Side

hbase(main):003:0> describe 'test_table'
DESCRIPTION                                                                                                        ENABLED                                                        
 'test_table', {NAME => 'field1', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0',  true                                                           
 VERSIONS => '3', COMPRESSION => 'NONE', MIN_VERSIONS => '0', TTL => '2147483647', KEEP_DELETED_CELLS => 'false',                                                                 
 BLOCKSIZE => '65536', IN_MEMORY => 'false', ENCODE_ON_DISK => 'true', BLOCKCACHE => 'true'}, {NAME => 'field2', D                                                                
 ATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', VERSIONS => '3', COMPRESSION => 'N                                                                
 ONE', MIN_VERSIONS => '0', TTL => '2147483647', KEEP_DELETED_CELLS => 'false', BLOCKSIZE => '65536', IN_MEMORY =>                                                                
  'false', ENCODE_ON_DISK => 'true', BLOCKCACHE => 'true'}                                                                                                                        
1 row(s) in 0.1680 seconds

/etc/hosts

127.0.0.1  BJ-NQ-V-CR002
127.0.0.1  localhost localhost.localdomain
192.168.36.42 BJ-NQ-V-CR002

hbase-site.xml

<configuration>
  <property>
    <name>hbase.zookeeper.quorum</name>
    <value>BJ-NQ-V-CR002</value>
  </property>
  <property>
    <name>hbase.rootdir</name>
    <value>file:///root/hbase-0.94.16/data/hbase</value>
  </property>
  <property>
    <name>hbase.zookeeper.property.dataDir</name>
    <value>/root/hbase-0.94.16/data/zookeeper</value>
  </property>
</configuration>

regionservers

BJ-NQ-V-CR002

Igor Katkov Igor Katkov · Accepted Answer · 2014-02-22T12:53:34

You log does not show any timeout exception, just some zookeeper output. Nevertheless I have seen this before.

Check if you can put from hbase shell. You likely have only one region server that serves this table and there is a problem with it. Either the region server in question is down or table file is unavailable on hdfs.

Restart the region server and watch its logs

HBase Java client can't reach to remote HBase region server

Client Side

Server Side

1 Answers