Bo Li created YARN-11082:
----------------------------
Summary: Use node label reosurce as denominator to decide which
resource is dominated
Key: YARN-11082
URL: https://issues.apache.org/jira/browse/YARN-11082
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Affects Versions: 3.1.1
Reporter: Bo Li
We ued cluster resource as denominator to decide which resoure is dominated in
AbstrctQueue#canAssignToThisQueue. Howere nodes in our cluster are configed
differently.
{quote}
2021-12-09 10:24:37,069 INFO
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.allocator.AbstractContainerAllocator:
assignedContainer application attempt=appattempt_1637412555366_1588993_000001
container=null queue=root.a.a1.a2 clusterResource=<memory:175117312,
vCores:40222> type=RACK_LOCAL requestedPartition=xx
2021-12-09 10:24:37,069 DEBUG
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.AbstractCSQueue:
Used resource=<memory:3381248, vCores:687> exceeded maxResourceLimit of the
queue =<memory:3420315, vCores:687>
2021-12-09 10:24:37,069 INFO
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler:
Failed to accept allocation proposal
{quote}
We can find out that even thouth root.a.a1.a2 used 687/687 vcores, but the
following code in AbstrctQueue#canAssignToThisQueue still return false
```java
Resources.greaterThanOrEqual(resourceCalculator, clusterResource,
usedExceptKillable, currentLimitResource)
```
clusterResource = <memory:175117312, vCores:40222>
usedExceptKillable = <memory:3381248, vCores:687>
currentLimitResource = <memory:3420315, vCores:687>
currentLimitResource:
memory : 3381248/175117312 = 0.01930847362
vCores : 687/40222 = 0.01708020486
usedExceptKillable:
memory : 3384320/175117312 = 0.01932601615
vCores : 688/40222 = 0.01710506687
DRF will think memory is dominated resource and return false in this scenario
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
