Ismael Juma created KAFKA-5250:
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Summary: handleFetchRequest should do down conversion after
throttling
Key: KAFKA-5250
URL: https://issues.apache.org/jira/browse/KAFKA-5250
Project: Kafka
Issue Type: Bug
Reporter: Ismael Juma
Assignee: Rajini Sivaram
Fix For: 0.11.0.0
We currently do down conversion before throttling. This is good from the
perspective of getting the correct message size, but it means that we can cause
OOMs due to excessive memory retention. That is, by performing down conversion,
we are loading the records into the heap even though we are not ready to send
them yet.
It would be preferable to throttle before down conversion.
In addition, we currently updates bytesOut before throttling. We should do it
after throttling as well.
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