Regarding Cluster State

Can I ask, is there a metric which tell me the size of the cluster state? And how long it takes to be updated? And if there isn't, how might I go about measuring that?


I don't believe there is.

Why are you interested in measuring it?

Because we have performance issues and I want to determine:

  • whether size/frequency of cluster updates is an issue
  • whether cluster updates are being delayed and for how long

Our clusters are not over-committed with indices/shards. The issues are mainly disk related and I want to gather extra evidence to illustrate the knock-on effects.

Your logs should show cluster state updates and the timing of those.

What version are you on>

We're on 6.8.x...

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