Boyang Chen created KAFKA-9561:
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Summary: Update task input partitions when topic metadata changes
Key: KAFKA-9561
URL: https://issues.apache.org/jira/browse/KAFKA-9561
Project: Kafka
Issue Type: Improvement
Components: streams
Reporter: Boyang Chen
With https://issues.apache.org/jira/browse/KAFKA-9545, we exposed a possibility
that a task could have been alive throughout the rebalance, while the input
partitions actually change. For example, a regex subscribed source could have
different topics when partitions are added/removed. We need to consider adding
the support to expand/shrink the partitions across rebalance to keep task
information consistent with subscription data.
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