Installation

Site-by-site upgrade of indexer cluster with SHC

mmarkleybac
Engager

I have a multisite (specifically, two site) indexer cluster running 7.3, and a search head cluster with search affinity disabled per the recommendation here. I obviously need to upgrade all of those tiers to 8.1 very soon, given the end-of-support dates for 7.3 and 8.0. Ideally I would like to perform that upgrade without an outage.

The best option for this appears to be a site-by-site upgrade, especially as I happen not to have any metrics indexes. Those instructions state that I must first upgrade my cluster manager node to 8.0, then upgrade the indexers in one site to 8.0, and then upgrade the search heads in that same site to 8.0 (then repeat for the other site, then repeat the whole thing to get to 8.1). How does this apply when the search heads are all set to site0?

In contrast, the instructions for upgrading each tier separately say to upgrade the manager, then the search heads, then the indexers.

In what order should I do this upgrade? Do the search heads also have to go from version 7.3 to 8.0 to 8.1 like the cluster manager and indexers do?

Labels (3)
0 Karma

codebuilder
Influencer

Have you engaged Splunk support? This is a fairly complex operation on it's own, but adding in a major version upgrade increases the complexity/risk. If this is a prod environment I would suggest having support help you create a process specific to your environment.

----
An upvote would be appreciated and Accept Solution if it helps!
0 Karma
Get Updates on the Splunk Community!

Why You Can't Miss .conf25: Unleashing the Power of Agentic AI with Splunk & Cisco

The Defining Technology Movement of Our Lifetime The advent of agentic AI is arguably the defining technology ...

Deep Dive into Federated Analytics: Unlocking the Full Power of Your Security Data

In today’s complex digital landscape, security teams face increasing pressure to protect sprawling data across ...

Your summer travels continue with new course releases

Summer in the Northern hemisphere is in full swing, and is often a time to travel and explore. If your summer ...