Deployment Architecture

Master Node Failure Impact on Search

hemendralodhi
Contributor

Hello,

As per documentation Search Head queries Master to get list of peers and direct request to them and in case of Master failure all operations - search/replication will work until one peer node failure. I am confused as how search will work with Master down as SH gets list of peers from Masters?

Thanks
Hemendra

0 Karma
1 Solution

jkat54
SplunkTrust
SplunkTrust

the search head gets the list of peers when you join it to the cluster and then it will periodically poll the master for any changes. When the master is down, the search head won't hear of any changes and it will keep the same "generation id" and therefore "remember" it's peers.

http://docs.splunk.com/Documentation/Splunk/6.0.9/Indexer/Whathappenswhenamasternodegoesdown

View solution in original post

jkat54
SplunkTrust
SplunkTrust

the search head gets the list of peers when you join it to the cluster and then it will periodically poll the master for any changes. When the master is down, the search head won't hear of any changes and it will keep the same "generation id" and therefore "remember" it's peers.

http://docs.splunk.com/Documentation/Splunk/6.0.9/Indexer/Whathappenswhenamasternodegoesdown

hemendralodhi
Contributor

Thanks for the explanation. Correct on Search head too we can see the list of peers.
This was helpful.

jkat54
SplunkTrust
SplunkTrust

Please mark this as the answer if it is. Thanks in advance and happy to help.

0 Karma
Get Updates on the Splunk Community!

.conf25 Community Recap

Hello Splunkers, And just like that, .conf25 is in the books! What an incredible few days — full of learning, ...

Splunk App Developers | .conf25 Recap & What’s Next

If you stopped by the Builder Bar at .conf25 this year, thank you! The retro tech beer garden vibes were ...

Congratulations to the 2025-2026 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...