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Posted to yarn-issues@hadoop.apache.org by "Botong Huang (JIRA)" <ji...@apache.org> on 2018/07/25 22:36:00 UTC

[jira] [Created] (YARN-8581) [AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy

Botong Huang created YARN-8581:
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             Summary: [AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy
                 Key: YARN-8581
                 URL: https://issues.apache.org/jira/browse/YARN-8581
             Project: Hadoop YARN
          Issue Type: Task
          Components: amrmproxy, federation
            Reporter: Botong Huang
            Assignee: Botong Huang


In Federation, every time an AM heartbeat comes in, LocalityMulticastAMRMProxyPolicy in AMRMProxy splits the asks according to the list of active and enabled sub-clusters. However, if we haven't been able to heartbeat to a sub-cluster for some time (network issues, or we keep hitting some exception from YarnRM, or YarnRM master-slave switch is taking a long time etc.), we should consider the sub-cluster as unhealthy and stop routing asks there, until the heartbeat channel becomes healthy again. 



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