yuanfenghu created FLINK-35903:
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Summary: Add CentralizedSlotAssigner support to adaptive scheduler
Key: FLINK-35903
URL: https://issues.apache.org/jira/browse/FLINK-35903
Project: Flink
Issue Type: Improvement
Components: Runtime / Coordination
Reporter: yuanfenghu
h2. *Question:*
When using an adaptive scheduler for the current task, reducing the task's
parallelism via REST API triggers the task to restart. If the numberOfTaskSlots
in my taskmanager is greater than 1, it may result in some taskmanager slots
being idle and unable to release the taskmanager resource.
h3. *How can this issue be resolved:*
We need a new SlotAssigner strategy. When the task triggers the above process,
the slots should be requested centrally within the taskmanager to ensure we can
maximize the release of unnecessary resources.
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