Deployment Architecture

Is there a high availability capability for the indexer discovery feature?

ddrillic
Ultra Champion

Based on Use indexer discovery to connect forwarders to peer nodes

and the original question at - How can the forwarder detect available indexers?

We wonder about the high availability aspect of this solution. After all the master node can be down while with the conventional method, high availability is built in as we connect to a set of indexers.

Tags (1)
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deepashri_123
Motivator

Hi ddrillic,

Even if the master goes down the forwarder will continue to send data to the indexer that it was sending earlier. There would be no data loss unless the indexer to which the forwarder was sending data goes down. After the master is restored again it will continue sending data to all indexers.
You can refer this doc:
https://docs.splunk.com/Documentation/Splunk/latest/Indexer/Whathappenswhenamasternodegoesdown

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FrankVl
Ultra Champion

If you're worried about that mechanism failing, you could also look at using DNS round robin by setting up a DNS record that points to all your indexers and then put that DNS name in your outputs.conf on your forwarders. Then you just need to make sure whenever you change the indexer cluster (e.g. add a node), to also update the DNS record.

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