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https://issues.apache.org/jira/browse/KAFKA-17732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17887735#comment-17887735
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TaiJuWu commented on KAFKA-17732:
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Hi [~lianetm] , if you are not working on this, may I have this one?
> System test coverage for new consumer positions not getting behind committed
> offsets
> ------------------------------------------------------------------------------------
>
> Key: KAFKA-17732
> URL: https://issues.apache.org/jira/browse/KAFKA-17732
> Project: Kafka
> Issue Type: Task
> Components: clients, consumer, system tests
> Reporter: Lianet Magrans
> Priority: Major
> Labels: consumer-threading-refactor
>
> We recently catch a bug where the new consumer positions would get behind the
> committed offsets (fixed with
> https://issues.apache.org/jira/browse/KAFKA-17674). It was only discovered
> while adding a new system test (test_consumer_rolling_migration, not yet in
> trunk, PR should be available soon in trunk under
> https://issues.apache.org/jira/browse/KAFKA-17272)
> We should check why this failure wasn't catch with existing tests, and add a
> test for it (test to ensure positions are updated properly, that would fail
> without KAFKA-17674 and pass with it).
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