[jira] [Created] (FLINK-21098) Add SlotAllocator

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-21098:
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             Summary: Add SlotAllocator
                 Key: FLINK-21098
                 URL: https://issues.apache.org/jira/browse/FLINK-21098
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
    Affects Versions: 1.13.0
            Reporter: Till Rohrmann
             Fix For: 1.13.0


We should add the {{SlotAllocator}} as defined in [FLIP-160|https://cwiki.apache.org/confluence/x/mwtRCg]. The {{SlotAllocator}} implementation should support
* slot sharing
* respect the configured parallelism of operators
* respect the max parallelism of operators (this point might already be covered if the configured parallelism cannot exceed the max parallelism, we should double check this)



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