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Posted to dev@kafka.apache.org by "Parth Brahmbhatt (JIRA)" <ji...@apache.org> on 2015/03/20 19:16:39 UTC

[jira] [Created] (KAFKA-2035) Add a topic config cache.

Parth Brahmbhatt created KAFKA-2035:
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             Summary: Add a topic config cache.
                 Key: KAFKA-2035
                 URL: https://issues.apache.org/jira/browse/KAFKA-2035
             Project: Kafka
          Issue Type: Task
            Reporter: Parth Brahmbhatt
            Assignee: Parth Brahmbhatt


Currently the topic config is all about Log configuration so we have a TopicConfigManager which takes in a Log instance and keeps updating that instance's config instance as and when the topic config is updated. The topic config update notifications are sent using zk watchers by Controller.

I propose to introduce a TopicConfigCache which will be updated by TopicConfigManager on any config changes. The log instance and any other component (like the authorizer mentioned in KAFKA-1688) will have a reference to TopicConfigCache using which they will access the topic configs.



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