The disk read/write rate and cpu usage of cassandra db intermittently bounce.
Casssandra was installed with docker, and node exporter and process exporter were used for monitoring. Node and process exporter are all installed with Docker. I checked the process exporter at the time it bounced. The process that consumed the most resources during the bounced time has Java in the groupname. I'm guessing that there might be a problem with cassandra java.
No more special traffic came in at the time of the bounce. It does not match the compaction cycle. Clustering is not broken.
cassandra version is 4.0.3
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