shuai.xu created FLINK-9632:
-------------------------------

             Summary: SlotPool should notify the call when allocateSlot meet an 
exception
                 Key: FLINK-9632
                 URL: https://issues.apache.org/jira/browse/FLINK-9632
             Project: Flink
          Issue Type: Bug
          Components: Cluster Management
            Reporter: shuai.xu
            Assignee: shuai.xu


In SlotPool, the allocateSlot() will return a CompletableFuture<LogicalSlot>, 
but this future will only be completed when slotAndLocalityFuture return a 
LogicSlot, if slotAndLocalityFuture is completed exceptionally, it will never 
be completed. so the caller will never know it. 



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