What is a classic and recommanded ElasticSearch architecture?

Our former cluster ES was made of 40 data nodes.

  • 4 of them were coordinators as well
  • 3 of them were electable as a master (for one node, it gathers data, coordinator and master-electable role)

We aim to create a new cluster (with 40 nodes as well) and I was wondering if it is recommanded to dedicate to a node, a specific role (ie. a coordinating node does not contain data node, etc.) ?

For example, does a node being both data and coordinator is an anti-pattern ?
Indeed, on a same node, I presume that a coordinator that falls can impact the data node part ?


Dedicated master nodes should neither store or serve traffic. Beyond that you can have each node doing multiple roles.

It depends on your use case and requirements really.

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.