Valentina Glagoleva created KAFKA-10649:
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Summary: CPU increase after the upgrade to Kafka 2.5
Key: KAFKA-10649
URL: https://issues.apache.org/jira/browse/KAFKA-10649
Project: Kafka
Issue Type: Bug
Components: core
Affects Versions: 2.5.1
Environment: Ubuntu 16.04
Reporter: Valentina Glagoleva
Attachments: CPU_usage_grafana.png
After upgrade from Kafka 2.2.1 to Kafka 2.5.1 we noticed, that some of our
clusters now use 10-15% more CPU than before:
!CPU_usage_grafana.png|width=613,height=210!
The increase happened right after the rolling upgrade of the cluster and CPU
usage stayed higher than usual since then.
We made no changes to the application side or usage patterns.
What can be the reason for a CPU usage increase?
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