In a clustered deployment, can you reference the master node by a DNS name instead of an IP?

[kdoonan]

Eg, if you specify the master as master.domain.local? This may be a silly question but will it cause any issues? The idea being that if the master goes down, we can relaunch it and just change the DNS to point to the new server.

Some follow on questions:

If we do this and change the DNS, will the nodes resolve the change automatically?

If there are 2 master servers running, but only 1 of them is being sent data, will it cause any issues? Eg, if we do relaunch the server and then the original one recovers.

Thanks

[martin_mueller · Accepted solution]

I see no reason not to use a DNS name. http://docs.splunk.com/Documentation/Splunk/6.1.2/Indexer/Handlemasternodefailure#Ensure_that_the_pe... explicitly mentions using DNS as well.

As for the old master coming back up, your nodes won't notice because you've changed the DNS entry.