Shilun Fan created YARN-11425:
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             Summary: [Federation] Router Supports SubClusterCleaner
                 Key: YARN-11425
                 URL: https://issues.apache.org/jira/browse/YARN-11425
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: federation
    Affects Versions: 3.4.0
            Reporter: Shilun Fan
            Assignee: Shilun Fan


In YARN-Federation mode, once a SubCluster is registered, the SubCluster is 
always in the RUNNING state, even if the SubCluster has no heartbeat for a long 
time.
We will let the Router automatically check the heartbeat time of the 
SubCluster, and once the heartbeat exceeds 30mins, we will set the SubCluster 
to the SC_LOST state.



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