How to connect to remote HBase in Java?

Question

I have a standlone HBase server. This is my hbase-site.xml:

 
    hbase.rootdir
    

        

Answer 1

hbase.master is @Deprecated. Clients use Zookeeper to get current hostname/port of their HBase servers.

@Deprecated
config.set("hbase.master", "146.169.35.28:60000")

Hadoop and HBase are very sensitive to DNS and /etc/hosts configuration. Make sure, your hostname doesn't point to 127.0.0.1 otherwise it will start many services listening on localhost only. Try not to use IP addresses anywhere in settings.

My /etc/hosts:

192.168.2.3     cloudera-vm     # Added by NetworkManager
127.0.0.1       localhost.localdomain   localhost
127.0.1.1       cloudera-vm-local localhost

/etc/hbase/hbase-site.xml should have settings set distributed=false (since you are using this for testing only):

  hbase.cluster.distributed
  false

/etc/zookeeper/zoo.cfg

# the port at which the clients will connect
clientPort=2181
server.0=cloudera-vm:2888:3888

List of my Java processes:

root@cloudera-vm:~# jps
1643 TaskTracker
1305 JobTracker
1544 SecondaryNameNode
2037 Bootstrap
9622 DataNode
10144 Jps
9468 NameNode
1948 RunJar
9746 HMaster