Difference between metrics.json and widgets.json for Ambari Service.

[shweta]

Hi All,

I can see that sample metrics.json has couple of attributes for GC.
 "metrics/jvm/gc/runs/$1": {
              "metric": "jvm.gc.runs.(\\w+)",
              "pointInTime": true,
              "temporal": true
            },
            "metrics/jvm/gc/time/$1": {
              "metric": "jvm.gc.time.(\\w+)",
              "pointInTime": true,
              "temporal": true
            }

However widget.json does not have anything for information regarding
gathering GC parameters. I would like to gather GC metrics also. When I see
on Ambari I cannot get a widget for same probably for same reason.
Is there any specific reason why GC params are not included in widget.json
as given in 
https://cwiki.apache.org/confluence/display/NIFI/Ambari+Metrics.

Thanks,
Shweta




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