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Posted to users@kafka.apache.org by Henning Røigaard-Petersen <hr...@edlund.dk> on 2017/02/14 09:12:32 UTC

Purpose of the metadata field of Offset Commit and Fetch

According to the API docs (https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol) Offset Commit and Offset Response sports a string field metadata, but does not explain its usage.
Can anyone explain what it is for? Is it used by Kafka or is it wholly consumer-specific? If Kafka does not use it, what is a plausible usecase for a consumer?

Regards
Henning Røigaard-Petersen