Weiwei Yang created YARN-7784:
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Summary: Cluster metrics is inaccurate when placement constraint
is enabled
Key: YARN-7784
URL: https://issues.apache.org/jira/browse/YARN-7784
Project: Hadoop YARN
Issue Type: Sub-task
Components: metrics, RM
Reporter: Weiwei Yang
Reproducing steps
# Setup a cluster and sets
{{yarn.resourcemanager.placement-constraints.enabled}} to true
# Submit a DS job with placement constraint, such as {{-placement_spec
foo=2,NOTIN,NODE,foo}}
# Check cluster metrics from http://<RM_ADDRESS>/cluster/apps
when job is running, {{Containers Running}}, {{Memory Used}} and {{VCore Used}}
were not updated (except AM), metrics from containers allocated by the
PlacementProcessor were not accumulated to the cluster metrics; however when
job is done, the resource were deducted. Then UI displays like following:
* Containers Running: -2
* Memory Used: -400
* VCores Used: -2
Looks like {{AppSchedulingInfo#updateMetricsForAllocatedContainer}} was not
called when allocating a container.
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