[jira] [Created] (FLINK-32254) FineGrainedSlotManager may not allocate enough taskmangers if maxSlotNum is configured

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

Weijie Guo created FLINK-32254:
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             Summary: FineGrainedSlotManager may not allocate enough taskmangers if maxSlotNum is configured
                 Key: FLINK-32254
                 URL: https://issues.apache.org/jira/browse/FLINK-32254
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination
    Affects Versions: 1.18.0
            Reporter: Weijie Guo
            Assignee: Weijie Guo


We ran a job with {{slotmanager.number-of-slots.max = 10}}, {{taskmanager.numberOfTaskSlots = 10}} and {{taskmanager.memory.process.size: 24000m}}. The resources of the cluster are sufficient, but no TaskManager can be allocated. It seems that there is a problem with the calculation logic of {{SlotManagerConfiguration#getMaxTotalMem}}. Due to the rounding down of division, the calculated {{MemorySize}} is too small.



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