Deployment Architecture

Master Node Failure Impact on Search

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

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1 Solution

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

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

Contributor

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

SplunkTrust
SplunkTrust

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

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