Juanjuan Tian created YARN-11108:
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Summary: Unexpected preemptions happen when hierarchy queues case
Key: YARN-11108
URL: https://issues.apache.org/jira/browse/YARN-11108
Project: Hadoop YARN
Issue Type: Improvement
Reporter: Juanjuan Tian
Found unexpected preemptions happen when hierarchy queues case, the issue is
that a sub queue can accept resource more than used+pending, leading to other
queues {color:#172b4d}IDEAL_ASSIGNED is smaller than used + pending, and
preemption happen unexpectedly {color}
2022-04-02T01:11:12,973 DEBUG [SchedulingMonitor
(ProportionalCapacityPreemptionPolicy)]
org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.PreemptableResourceCalculator:
NAME: MSANRPAB PARTITION: persistent{color:#de350b} CUR: <memory:37934080,
vCores:8285, ports:null{color}, [<groupIndex:1, availableCpuCount:-36467,
reservedAffinity:\{6, 8, 9, 10, 11, 15, 19, 20, 22, 24, 28}>]> PEN: <memory:0,
vCores:0, ports:null> TOTAL_PEN: <memory:0, vCores:0, ports:null> RESERVED:
<memory:0, vCores:0, ports:null> GAR: <memory:30720000, vCores:9571,
ports:null> NORM: 0.3424696922302246{color:#de350b} IDEAL_ASSIGNED:
<memory:37934080, vCores:8903, ports:null>{color} IDEAL_PREEMPT: <memory:0,
vCores:0, ports:null> ACTUAL_PREEMPT: <memory:0, vCores:0, ports:null>
UNTOUCHABLE: <memory:0, vCores:0, ports:null> PREEMPTABLE: <memory:7214080,
vCores:-1286, ports:null, [<groupIndex:1, availableCpuCount:-36467,
reservedAffinity:\{6, 8, 9, 10, 11, 15, 19, 20, 22, 24, 28}>]> BONUS_WEIGHT:
-1.0
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