A. Sophie Blee-Goldman created KAFKA-14539: ----------------------------------------------
Summary: Simplify StreamsMetadataState by replacing the Cluster metadata with partition info map Key: KAFKA-14539 URL: https://issues.apache.org/jira/browse/KAFKA-14539 Project: Kafka Issue Type: Improvement Components: streams Reporter: A. Sophie Blee-Goldman We can clean up the StreamsMetadataState class a bit by removing the #onChange invocation that currently occurs within StreamsPartitionAssignor#assign, which then lets us remove the `Cluster` parameter in that callback. Instead of building a fake Cluster object from the map of partition info when we invoke #onChange inside the StreamsPartitionAssignor#onAssignment method, we can just directly pass in the `Map<TopicPartition, PartitionInfo>` and replace the usage of `Cluster` everywhere in StreamsMetadataState (I believe the current system is a historical artifact from when we used to require passing in a {{Cluster}} for the default partitioning strategy, which the StreamMetadataState needs to compute the partition for a key. At some point in the past we provided a better way to get the default partition, so we no longer need a {{Cluster}} parameter/field at all) -- This message was sent by Atlassian Jira (v8.20.10#820010)