GitHub user apurvam opened a pull request:
https://github.com/apache/kafka/pull/3119
KAFKA-5273: Make KafkaConsumer.committed query the server for all partitions
Before this patch the consumer would return the cached offsets for
partitions in its current assignment. This worked when all the offset commits
went through the consumer.
With KIP-98, offsets can be committed transactionally through the producer.
This means that relying on cached positions in the consumer returns incorrect
information: since commits go through the producer, the cache is never updated.
Hence we need to update the `KafkaConsumer.committed` method to always
lookup the server for the last committed offset to ensure it gets the correct
information every time.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/apurvam/kafka
KAFKA-5273-kafkaconsumer-committed-should-always-hit-server
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/3119.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3119
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commit 17eb7eab70a40e3d4208a56463bb418350f80950
Author: Apurva Mehta <apu...@confluent.io>
Date: 2017-05-22T23:36:38Z
Make KafkaConsumer.committed hit the server for all partitions, even those
in its current assignment
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