Vikas Kumar created RANGER-4047:
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             Summary: Ranger KMS health metrics 
                 Key: RANGER-4047
                 URL: https://issues.apache.org/jira/browse/RANGER-4047
             Project: Ranger
          Issue Type: New Feature
          Components: kms
            Reporter: Vikas Kumar
            Assignee: Vikas Kumar


Ranger KMS should collect the important System as well as application level 
health metrics.

System metrics: JVM/CPU/memory related metrics

Application metrics: KMS API execution metrics. Like, number of time DECRYPT 
operation invoked and time taken to complete the request etc.

There should also be API to consume these stats, preferably REST API. Any 
metric tools should be able to get these metrics through that REST API.

This will help making KMS highly observable. Alerts system can be configured to 
consume, process and generate alerts.

There could be many other use cases.



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