Jose Armando Garcia Sancio created KAFKA-12421:
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Summary: Improve controller's atomic grouping
Key: KAFKA-12421
URL: https://issues.apache.org/jira/browse/KAFKA-12421
Project: Kafka
Issue Type: Improvement
Components: controller
Reporter: Jose Armando Garcia Sancio
The current controller implementation atomically appends to the metadata log by
making sure that all required records are on the same batch. The controller
groups all of the records that result from an RPC into one batch. Some of the
RPCs are:
# Client quota changes
# Configuration changes
# Feature changes
# Topic creation
This is good enough for correctness but it is more aggressive than necessary.
For example, for topic creation since errors are reported independently, the
controller only needs to guarantee that all of the records for one topic are
committed atomically.
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