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https://issues.apache.org/jira/browse/KAFKA-21046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uladzislau Blok reassigned KAFKA-21046:
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Assignee: Uladzislau Blok
> Make Kafka Streams KIP-909 ready
> --------------------------------
>
> Key: KAFKA-21046
> URL: https://issues.apache.org/jira/browse/KAFKA-21046
> Project: Kafka
> Issue Type: Improvement
> Components: streams
> Affects Versions: 4.4.0
> Reporter: Matthias J. Sax
> Assignee: Uladzislau Blok
> Priority: Major
>
> KIP-909 ships improved error handling behavior for Kafka clients with regard
> to DNS changes, and broker re-discovery. However, it also introduces behavior
> changes and new exceptions when enabled. For this reason, it's locked down in
> Kafka Streams at the moment and cannot be enable.
> This ticket is about updating KS code base do become KIP-909 ready: we need
> to change the code to allow to handle the new exceptions correctly, ie, don't
> let StreamsThread die, but recover fully automatically (what required to
> create a new client instance).
> We need to also take care of state-updater, global-thread, and the admin
> client.
> Open question: KIP-909 is disabled on the clients because it requires code
> changes to handle the new behavior correctly. We could consider to enable it
> by default in KafkaStreams right away, w/o the need of a major release. If we
> update KS code to handle it correctly, there should not be any backward
> compatibility concerns requiring to wait for 5.0 release.
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