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Posted to jira@kafka.apache.org by "Guozhang Wang (Jira)" <ji...@apache.org> on 2019/10/14 17:37:00 UTC

[jira] [Created] (KAFKA-9039) Optimize replica fetching CPU utilization with large number of partitions

Guozhang Wang created KAFKA-9039:
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             Summary: Optimize replica fetching CPU utilization with large number of partitions
                 Key: KAFKA-9039
                 URL: https://issues.apache.org/jira/browse/KAFKA-9039
             Project: Kafka
          Issue Type: Improvement
          Components: core
            Reporter: Guozhang Wang


Our current follower replica fetching logic has huge CPU cost with num.partitions to fetch from, and it scales non-linearly as well. There are a bunch of optimizations we can consider to try to reduce its cost and hopefully make it to be linear against the num.partitions.



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