[jira] [Created] (FLINK-15224) Resource requirements are not respected when fulfilling a slot request with unresolvedRootSlots from a SlotSharingManager

["Zhu Zhu (Jira)" <ji...@apache.org>]

Zhu Zhu created FLINK-15224:
-------------------------------

             Summary: Resource requirements are not respected when fulfilling a slot request with unresolvedRootSlots from a SlotSharingManager
                 Key: FLINK-15224
                 URL: https://issues.apache.org/jira/browse/FLINK-15224
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.11.0
            Reporter: Zhu Zhu


In {{SchedulerImpl#allocateMultiTaskSlot}}, if a slot request cannot be fulfilled immediately with a resolved root slot(MultiTaskSlot that is fulfilled by an allocated slot) or with available slots, it will be assigned to a random unresolved root slot. It does not do resource requirements check in this case, so a large task slot can be assigned to a small shared slot (unresolved root slot) and when the shared slot received its physical slot offer, it will be recognized as oversubscribing and the slot would be released and related tasks would fail.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)