how can I make hbase region server listen on 0.0.0.0?

Question

My Hbase region server is listening on 127.0.0.1. How do I make it liste on 0.0.0.0 ? I tried channing value of hbase.regionserver.info.bindAddress but that doesn't seem to be working.

Answer 1

In order to expose port 60020 on an external interface in (pseudo)distributed mode, HBase wants your /etc/hosts to look a certain way. If you run Ubuntu, you're likely to find something like this in your /etc/hosts: (I'm assuming your hostname is regionserver)

127.0.0.1   localhost
127.0.1.1   regionserver

1. Select the a network interface with an IP address, e.g. eth0 with 192.168.1.2 and replace 127.0.1.1 with that address.

2. Edit the hbase/conf/regionservers to enter your hostname there.

   regionserver

3. Restart HBase and try to connect to port 60020 from a remote machine.

Hope that helps!

Answer 2

Instead of hbase.regionserver.info.bindAddress, you should employ hbase.regionserver.ipc.address property and set it to desired IP address or 0.0.0.0 mask. For example:

<property>
  <name>hbase.regionserver.ipc.address</name>
  <value>0.0.0.0</value>
</property>

Remember:

• this should be applied on each machine with Region Server running if you have a cluster instead of single machine.
• you have to restart Region Server component (not Master component) to apply the settings.
• all *.info.* properties are about web UI, not core functionality