I am using Elasticsearch v6.6.1. There are total 16 nodes (10 data, 3 master, 3 client). I see a frequent message in elected master logs: {"type":"log","host":"Elasticsearch-master-55ff74b94d-ckhfw","level":"WARN", "time": "2021-10-13T00:02:51.273Z", "logger":"o.e.d.z.PublishClusterStateAction"," …

Receiving "timed out waiting for all nodes to process published state"

DavidTurner (David Turner) December 13, 2021, 2:53pm 2

v6.6.1 was released almost 3 years ago and is long past EOL. This whole area was rewritten in 7.0. You should upgrade.

No shard is getting assigned on one of the data node

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