Xavier Léauté created KAFKA-6826:
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Summary: Avoid range scans when forwarding values in window store
aggregations
Key: KAFKA-6826
URL: https://issues.apache.org/jira/browse/KAFKA-6826
Project: Kafka
Issue Type: Bug
Reporter: Xavier Léauté
Assignee: Xavier Léauté
Attachments: Screen Shot 2018-04-25 at 11.14.25 AM.png
This is a follow-up to KAFKA-6560, where we missed at least one case that
should be using single point queries instead of range-scans when forwarding
values during aggregation.
Since a single range scan can sometimes account for 75% of aggregation cpu
time, fixing this should provide some significant speedups (see attached
flamegraph)
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