[jira] [Created] (KAFKA-15038) Use topic id/name mapping from the Metadata cache in RLM

["Alexandre Dupriez (Jira)" <ji...@apache.org>]

Alexandre Dupriez created KAFKA-15038:
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             Summary: Use topic id/name mapping from the Metadata cache in RLM
                 Key: KAFKA-15038
                 URL: https://issues.apache.org/jira/browse/KAFKA-15038
             Project: Kafka
          Issue Type: Sub-task
            Reporter: Alexandre Dupriez
            Assignee: Alexandre Dupriez


Currently, the {{RemoteLogManager}} maintains its own cache of topic name to topic id [[1]|https://github.com/apache/kafka/blob/trunk/core/src/main/java/kafka/log/remote/RemoteLogManager.java#L138] using the information provided during leadership changes, and removing the mapping upon receiving the notification of partition stopped.

It should be possible to re-use the mapping in a broker's metadata cache, removing the need for the RLM to build and update a local cache thereby duplicating the information in the metadata cache. It also allows to preserve a single source of authority regarding the association between topic names and ids.

[1] https://github.com/apache/kafka/blob/trunk/core/src/main/java/kafka/log/remote/RemoteLogManager.java#L138



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