Damien Gasparina created KAFKA-7129:
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Summary: Dynamic default value for number of thread configuration
Key: KAFKA-7129
URL: https://issues.apache.org/jira/browse/KAFKA-7129
Project: Kafka
Issue Type: Improvement
Components: core
Reporter: Damien Gasparina
There are properties in the broker to change the number of thread of a
component (e.g. _num.replica.fetchers_ or _num.network.threads_). After
discussing with [~astubbs], it seems that the default values are optimized for
an 8 CPU machine and might not be optimized for larger machine (e.g. 48 cores).
For those larger machine, an admin need to tune them to be able to use all
resources of the host.
Having dynamic default value (e.g. _num.replica.fetchers = ceil(number of core
/ 8), etc...) instead of static (e.g. _num.replica.fetchers =1) could be a more
efficient strategy to have default values optimized for different kind of
deployment.
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