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[issue 465]Create a documentation section to use Grafana DataSource w…
…ith SonataFlow Prometheus metrics: address review comments
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serverlessworkflow/modules/ROOT/pages/_common-content/sonataflow-metrics.adoc
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| == Overview | ||
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| In {product_name}, you can check the following metrics: | ||
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| * `kogito_process_instance_started_total`: Number of started workflows. | ||
| * `kogito_process_instance_running_total`: Number of running workflows. | ||
| * `kogito_process_instance_completed_total`: Number of completed workflows. | ||
| * `kogito_process_instance_error`: Number of workflows that report an error. | ||
| * `kogito_process_instance_duration_seconds`: Duration of a workflow instance in seconds. | ||
| * `kogito_node_instance_duration_milliseconds`: Duration of relevant nodes in milliseconds. | ||
| * `sonataflow_input_parameters_counter_total`: Records input parameters, the occurrences of <"param_name","param_value"> per `processId`. | ||
| [NOTE] | ||
| ==== | ||
| Internally, workflows are referred as processes. Therefore, the `processId` and `processName` are workflow id and name respectively. | ||
| ==== | ||
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| Each of the metrics mentioned previously contains a label for a specific workflow id. For example, the `kogito_process_instance_completed_total` metric below contains the labels for `callbackstatetimeouts` workflow: | ||
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| .Example `kogito_process_instance_completed_total` metric | ||
| [source,yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_completed_total Completed Process Instances | ||
| # TYPE kogito_process_instance_completed_total counter | ||
| kogito_process_instance_completed_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",process_state="Completed",version="1.0.0-SNAPSHOT",} 3.0 | ||
| ---- | ||
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| [NOTE] | ||
| ==== | ||
| Internally, {product_name} uses Quarkus Micrometer extension, which also exposes built-in metrics. You can disable the Micrometer metrics in {product_name}. For more information, see link:https://quarkus.io/guides/micrometer[Quarkus - Micrometer Metrics]. | ||
| ==== | ||
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| == Metrics Description | ||
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| === kogito_process_instance_started_total | ||
| Count the number of started workflow instances. | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_started_total Started Process Instances | ||
| # TYPE kogito_process_instance_started_total counter | ||
| kogito_process_instance_started_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 7.0 | ||
| ---- | ||
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| === kogito_process_instance_running_total | ||
| Records the number of running workflow instances. | ||
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| [NOTE] | ||
| ==== | ||
| This includes workflow instances that are in the `Error` state, since the error state is not a terminal state. | ||
| Process instances that have reached a terminal status, i.e. `Completed` or `Aborted`, are not present in this metric. | ||
| ==== | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_running_total Running Process Instances | ||
| # TYPE kogito_process_instance_running_total gauge | ||
| kogito_process_instance_running_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 4.0 | ||
| ---- | ||
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| === kogito_process_instance_completed_total | ||
| Workflow instances that have reached a terminal status, `Aborted` or `Completed`, and thus are considered as completed. | ||
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| [NOTE] | ||
| ==== | ||
| These are the only two terminal status. The `Error` state is not terminal. | ||
| Additionally, the metric has the process_state=`Completed`, or could be `Aborted`, to register exactly which of the two terminal status were reached. | ||
| ==== | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_completed_total Completed Process Instances | ||
| # TYPE kogito_process_instance_completed_total counter | ||
| kogito_process_instance_completed_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",process_state="Completed",version="1.0.0-SNAPSHOT",} 3.0 | ||
| ---- | ||
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| === kogito_process_instance_error | ||
| Records the number of errors that have occurred per processId and error, including the error message. | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_error Number of errors that has occurred | ||
| # TYPE kogito_process_instance_error counter | ||
| ---- | ||
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| === kogito_process_instance_duration_seconds | ||
| Calculates duration of a workflow instance that has reached a terminal state, i.e. `Aborted` or `Completed`. This metric is registered when the process reaches the terminal state. | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_process_instance_duration_seconds_max Process Instances Duration | ||
| # TYPE kogito_process_instance_duration_seconds_max gauge | ||
| kogito_process_instance_duration_seconds_max{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 30.0 | ||
| # HELP kogito_process_instance_duration_seconds Process Instances Duration | ||
| # TYPE kogito_process_instance_duration_seconds summary | ||
| kogito_process_instance_duration_seconds_count{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 3.0 | ||
| kogito_process_instance_duration_seconds_sum{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 90.0 | ||
| ---- | ||
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| === kogito_node_instance_duration_milliseconds | ||
| Records the duration of the execution for nodes “relevant” to the workflows. The metric is calculated when a given node has finished executing. | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP kogito_node_instance_duration_milliseconds_max Relevant nodes duration in milliseconds | ||
| # TYPE kogito_node_instance_duration_milliseconds_max gauge | ||
| kogito_node_instance_duration_milliseconds_max{artifactId="serverless-workflow-project",node_name="CallbackState",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 30014.0 | ||
| # HELP kogito_node_instance_duration_milliseconds Relevant nodes duration in milliseconds | ||
| # TYPE kogito_node_instance_duration_milliseconds summary | ||
| kogito_node_instance_duration_milliseconds_count{artifactId="serverless-workflow-project",node_name="CallbackState",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 3.0 | ||
| kogito_node_instance_duration_milliseconds_sum{artifactId="serverless-workflow-project",node_name="CallbackState",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 90128.0 | ||
| ---- | ||
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| === sonataflow_input_parameters_counter_total | ||
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| Records the occurrences of <"param_name", "param_value"> per processId. | ||
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| [NOTE] | ||
| ==== | ||
| Parameters that are json values, or arrays are flattened. | ||
| ==== | ||
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| [source, yaml] | ||
| ---- | ||
| # HELP sonataflow_input_parameters_counter_total Input parameters | ||
| # TYPE sonataflow_input_parameters_counter_total counter | ||
| sonataflow_input_parameters_counter_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",param_name="name",param_value="walter",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 1.0 | ||
| sonataflow_input_parameters_counter_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",param_name="surname.sur1",param_value="Medvedeo",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 1.0 | ||
| sonataflow_input_parameters_counter_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",param_name="name",param_value="bob",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 5.0 | ||
| sonataflow_input_parameters_counter_total{app_id="sonataflow-process-monitoring-listener",artifactId="serverless-workflow-project",param_name="surname",param_value="esponja",process_id="callbackstatetimeouts",version="1.0.0-SNAPSHOT",} 5.0 | ||
| ---- |
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