FIXED. I updated the configuration as following: Map<String, Object> HBConf = new HashMap<String,Object>(); HBConf.put("hbase.zookeeper.quorum", "server1, server2, server3"); /*Find server1,server2,server3 in your configuration ambari>HBASE>advanced>hbase.zookeeper.quorum */ HBConf.put("hbase.zookeeper.property.clientPort", "2181"); HBConf.put("hbase.master.port", "16000"); /*Find zookeeper.znode.parent in your configuration ambari>HBASE>advanced>zookeeper.znode.parent */ HBConf.put("zookeeper.znode.parent", "/hbase-unsecure"); config.put("HBCONFIG",HBConf); ... View more

@Giuseppe Mento could you please try after adding this property in HBConf and see if it helps,update hbase_zk_node according to your configuration by default it should be /hbase if it is not a secure cluster HBConf.put("zookeeper.znode.parent", "<hbase_zk_node>"); ... View more