I'm running ELK Stack 7.10.0 (elasticsearch, filebeat, kibana, logstash) on the same server. And since two days elasticsearch is doing something every 6 minutes for one minute. The CPU usage is not high, but it's little annoying. I can't see what is happening in the elasticsearch logs.
I'm running it on Ubuntu 20.04.1with
openjdk version "188.8.131.52" 2020-11-04 OpenJDK Runtime Environment AdoptOpenJDK (build 184.108.40.206+1) OpenJDK 64-Bit Server VM AdoptOpenJDK (build 220.127.116.11+1, mixed mode)
Someone any idea? The server is in idle mode. No load from other processes.