[Enhancement] Investigate/update default topic configuration configurations for Cruise Control

Is your feature request related to a problem? Please describe. The default topic configurations for the following Cruise Control topics are based on the defaults configurations of the upstream Cruise Control project [1]

• strimzi.cruisecontrol.metrics (partitions: 1, replication factor: 1)
• strimzi.cruisecontrol.modeltrainingsamples (partitions: 32, replication factor: 2)
• strimzi.cruisecontrol.partitionmetricsamples (partitions: 32, replication factor: 2)

These configurations may not be optimal for a default or minimal Kafka cluster and should be investigated and/or updated.

Describe the solution you’d like A justification of existing defaults, new defaults, or heuristic of how these numbers are chosen based on Kafka cluster size.

[1] Refer to partition.sample.store.topic.partition.count and broker.sample.store.topic.partition.count settings here: https://github.com/linkedin/cruise-control/blob/447ba1aed506b1383f725bfad0aca56370a612f3/docs/wiki/User Guide/Configurations.md#kafkasamplestore-configurations

[katheris]

Hi @larvinloy I don’t believe the partition count needs to be 1, otherwise I would expect Cruise Control to hard code it to 1. So I don’t see any reason that it would be unsafe to increase the partition count.

[kyguy]

Sounds good to me @katheris!