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https://issues.apache.org/jira/browse/KAFKA-15696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk True updated KAFKA-15696:
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Description: Upon closing of the {{Consumer}} we need to revoke assignment.
This involves stop fetching, committing offsets if auto-commit enabled and
invoking the onPartitionsRevoked callback. There is a mechanism introduced in
PR [14406|https://github.com/apache/kafka/pull/14406] that allows for
performing network I/O on shutdown. The new method
{{ConsumerNetworkThread.runAtClose()}} will be executed when
{{Consumer.close()}} is invoked. (was: Upon closing of the {{Consumer}} we
need to:
# Complete pending commits
# Revoke assignment (Note that the revocation involves stop fetching,
committing offsets if auto-commit enabled and invoking the onPartitionsRevoked
callback)
# Send the last GroupConsumerHeartbeatRequest with epoch = -1 to leave the
group (or -2 if static member)
# Close any fetch sessions on the brokers
# Poll the NetworkClient to complete pending I/O
There is a mechanism introduced in PR
[14406|https://github.com/apache/kafka/pull/14406] that allows for performing
network I/O on shutdown. The new method
{{DefaultBackgroundThread.runAtClose()}} will be executed when
{{Consumer.close()}} is invoked.)
> Revoke partitions on Consumer.close()
> -------------------------------------
>
> Key: KAFKA-15696
> URL: https://issues.apache.org/jira/browse/KAFKA-15696
> Project: Kafka
> Issue Type: Sub-task
> Components: clients, consumer
> Reporter: Kirk True
> Assignee: Philip Nee
> Priority: Major
> Labels: consumer-threading-refactor, kip-848, kip-848-e2e,
> kip-848-preview
>
> Upon closing of the {{Consumer}} we need to revoke assignment. This involves
> stop fetching, committing offsets if auto-commit enabled and invoking the
> onPartitionsRevoked callback. There is a mechanism introduced in PR
> [14406|https://github.com/apache/kafka/pull/14406] that allows for performing
> network I/O on shutdown. The new method
> {{ConsumerNetworkThread.runAtClose()}} will be executed when
> {{Consumer.close()}} is invoked.
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