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Key metrics for Policy Drools PDP

*Note: The Drools PDP counters are exposed on a per controlloop implementation basis.

MetricMetric available?Exposed via Prometheus endpoint?Comment
Availability of policy-drools-pdpYesNo

Exposed by policy-drools-pdp healthcheck and policy-pap consolidated healthcheck.

Code Block
languagebash
titleTelemetry feature-lifecycle status API
collapsetrue
http://localhost:9696/policy/pdp/engine> get /policy/pdp/engine/lifecycle/state
HTTP/1.1 200 OK
Content-Length: 8
Content-Type: application/json
Date: Thu, 11 Nov 2021 16:36:13 GMT
Server: Jetty(9.4.33.v20201020)

"ACTIVE"


Policy Deployment counter (per drools-pdp instance)

policyDeployCount
policyDeploySuccessCount
policyDeployFailCount

YesNo

Sample:

Code Block
titleGET /policy/pap/v1/statistics/defaultGroup/drools
collapsetrue
{
   "defaultGroup":{
      "drools":[
         {
            "pdpInstanceId":"dev-policy-drools-pdp-0",
            "timeStamp":"2021-09-07T20:09:34.160Z",
            "pdpGroupName":"defaultGroup",
            "pdpSubGroupName":"drools",
            "policyDeployCount":54,
            "policyDeploySuccessCount":54,
            "policyDeployFailCount":0,
            "policyExecutedCount":1,
            "policyExecutedSuccessCount":1,
            "policyExecutedFailCount":0,
            "engineStats":[

            ]
         }
      ]
   }
}


Policy Execution counter (per drools-pdp instance)

policyExecutedCount
policyExecutedSuccessCount
policyExecutedFailCount

YesNo

Latency

NoNoTime taken for an incoming event to be processed by drools controller.

Count of Drools facts

NoNoAn ever increasing number of drools facts can lead to an Out of memory.
Kafka consumer lagNoNo

Can be implemented external to the policy FWK

Monitor kafka consumer lag increase for kafka/dmaap-message-router topics related to drools

SSL certificate expiry timeNoNoCan be done outside the scope of Policy Fwk

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