Hi there, I'm trying to understand why we sometimes get high CPU utilisation on only one Data node of our cluster. We mainly use 2 indexes (80GB for one, 500MB for the second) with 5 shards and one replica each which seems to be evenly distributed across our 3 nodes. We sometimes see one node CPU …

High CPU usage on only 1 Data node

Christian_Dahlqvist (Christian Dahlqvist) September 12, 2020, 2:49pm 2

Yes, please share the hot threads output.

Topic		Replies	Views
Very high CPU usage on one Elasticsearch data node Elasticsearch	18	33951	May 9, 2018
Only one of the data nodes has a significantly higher cpu usage than other data nodes Elasticsearch	1	205	March 27, 2023
One ES Data node's CPU jumps to 90%+ suddenly while in production Elasticsearch	7	1058	May 6, 2021
Spontaneously uneven CPU utilization between data nodes in the cluster Elasticsearch	2	1312	July 5, 2017
Data node CPU fluctuating with no change in traffic or shards rebalancing Elasticsearch	6	74	October 7, 2024