[jira] [Created] (YARN-8443) Cluster metrics have wrong Total VCores when there is reserved container for CapacityScheduler

["Tao Yang (JIRA)" <ji...@apache.org>]

Tao Yang created YARN-8443:
------------------------------

             Summary: Cluster metrics have wrong Total VCores when there is reserved container for CapacityScheduler
                 Key: YARN-8443
                 URL: https://issues.apache.org/jira/browse/YARN-8443
             Project: Hadoop YARN
          Issue Type: Bug
          Components: webapp
    Affects Versions: 3.1.0, 2.9.0, 3.2.0
            Reporter: Tao Yang
            Assignee: Tao Yang


Cluster metrics on the web UI will give wrong Total Vcores when there is reserved container for CapacityScheduler.
Reference code:
{code:java|title=ClusterMetricsInfo.java}
    if (rs instanceof CapacityScheduler) {
      CapacityScheduler cs = (CapacityScheduler) rs;
      this.totalMB = availableMB + allocatedMB + reservedMB;
      this.totalVirtualCores =
          availableVirtualCores + allocatedVirtualCores + containersReserved;
       ...
    }
{code}
The key of this problem is the calculation of totalVirtualCores, {{containersReserved}} is the number of reserved containers, not reserved VCores. The correct calculation should be {{this.totalVirtualCores = availableVirtualCores + allocatedVirtualCores + reservedVirtualCores;}}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org