Jagadish created SAMZA-991:
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             Summary: Continue to report SamzaAppMaster metrics
                 Key: SAMZA-991
                 URL: https://issues.apache.org/jira/browse/SAMZA-991
             Project: Samza
          Issue Type: Bug
            Reporter: Jagadish


As a part of the AM-JC refactoring, we took out some metrics from 
SamzaAppMasterMetrics and moved them to samza-core. However, for existing jobs 
that rely on metrics for their monitoring/alerting, changing metric-names may 
break the jobs.

This change ensures that we still report basic metrics like failed containers, 
running containers, job health from Samza yarn for backwards-compat reasons.



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