HBase provides highly available tables by replicating table regions. All replicated regions have a unique replica ID.
The replica ID for a primary region is always 0. The HBase web-based interface displays the replica IDs for all
defined table regions. In the following example, the table t1
has two regions. The secondary
region is identified by a replica ID of 1.
To access the HBase Master Server user interface, point your browser to port 60010.