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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7784) Cluster metrics is inaccurate when placement constraint is enabled
Date Mon, 22 Jan 2018 11:36:00 GMT
Weiwei Yang created YARN-7784:

             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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