Jun Rao created KAFKA-557:
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Summary: Replica fetch thread doesn't need to recompute message id
Key: KAFKA-557
URL: https://issues.apache.org/jira/browse/KAFKA-557
Project: Kafka
Issue Type: Bug
Components: core
Affects Versions: 0.8
Reporter: Jun Rao
Priority: Blocker
With kafka-506, the leader broker computes the logical id for each message
produced. This could involve decompressing and recompressing messages, which
are expensive. When data is replicated from the leader to the follower, we
could avoid recomputing the logical message id since it's the same.
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