Testing java HBase connection

Question

I am trying to use the HBase Java APIs to write data into HBase. I installed Hadoop/HBase through Ambari.

Here is how the configuration is currently set up:

Answer 1

You can use HBaseAdmin.checkHBaseAvailable(conf);

Answer 2

The property below resolved my issue

For Hortonworks: hconfig.set("zookeeper.znode.parent", "/hbase-unsecure")

For cloudera: hconfig.set("zookeeper.znode.parent", "/hbase")

Answer 3

   Configuration conf = HBaseConfiguration.create();
   conf.set("hbase.master", "ip_address:60000");
   conf.set("hbase.zookeeper.quorum","ip_address");
   conf.set("hbase.zookeeper.property.clientPort", "2181");

    HBaseAdmin admin = new HBaseAdmin(conf);

    boolean bool = admin.tableExists("table_name");
    System.out.println( bool);

ip_address : this is the ip_adress of your hbase cluster, change your hbase zookeeper port (2181) if it is not the same on your configuration files.

Answer 4

In addition to the configuration parameters suggested by Yosr, specifying

conf.set("zookeeper.znode.parent", "VALUE")

would help resolve the issue.