Application Performance Monitoring

Datadog APM Integration

With Datadog APM integration, you can use telemetry to create metrics, alerts, and dashboards about an application’s performance. You can also use custom facets to create filters where application context is available—for example, moduleId. The images below are a typical example of creating a facet for a specified module ID(s).

Viewing a Trace

Traces are a collection of correlated spans or structured logs that provide a high-level view of what occurs when an application request is made. You can access traces from the APM drop-down in the side menu of your Datadog account.

Let's use the image below as an example to better explain a Datadog trace. In this image, you can see the spans that describe a workflow execution in an Unqork application. The image displays the child processes that occur as part of the parent process. The execution starts with the startNewSubmission parent operation. As part of the parent, the executeCurrentWorkflowStep child operations run. Then, the parent process ends.

Viewing a Span

Let's look deeper into one of the executeCurrentWorkflowStep spans to understand what happened during the workflow execution. In the image to the right, we can see detailed information about the execution step. From the Datadog tags, we get insight about the application that was executed and where the data exists in Datadog. The following table highlights some of the most important information: Element Description applicationId The application's unique identifier. currentState The name of the workflow step. otel.trace_id The trace's unique identifier. userId The user that executed the workflow step.

Building Custom Metrics

Now that you have your trace, you can build a custom metric to filter by a specified query. In this example, we'll query based on a specific Unqork environment and application ID. The following example returns information for an application ID in the specified Unqork environment.

To create a custom metric: 1. Open your browser and click the following link: https://app.datadoghq.com/apm/traces/generate-metrics. 2. To log in, enter your Datadog username and password credentials. 3. Click New Metric. 4. In the Set Metric Name field, enter a name for your metric. In this example, we entered myApplication.duration. 5. In the Define Query field, enter one or more queries. For this example, we'll enter env:qa35-staging and @applicationId:64bfdf76ba2dfef968535d75. 6. Click Create Metric. Once created, you can use this metric to configure dynamic charts in a dashboard to visualize the performance of your applications.

Splunk APM Integration

With Splunk APM integration, you can use powerful visualization tools to display your span attributes.

Viewing a Trace

Traces are a collection of correlated spans that provide a high-level view of what occurs when an application request is made. The Splunk APM integration collects and analyzes spans and traces from each of the services that you have connected. You can access spans from the menu to the left of your Splunk account. Let's use the image to the right as an example to better explain a Splunk trace. In this image, you can see the spans that describe a workflow execution in an Unqork application. In the image below, you can see the spans that describe a workflow execution in an Unqork application. The image displays the child processes that occur as part of the parent process. The execution starts with the unqork-applications:completeStep parent operation. As part of the parent process, the unqork-applications:executeCurrentWorkflowStep child operations run. After executing the components as part of the workflow step, the parent process ends.

You can also filter for specific traces to analyze errors that occurred. In the example image below, you can filter a trace to identify its trace IDs, the execution step, how long a execution took, and if there were errors.

Viewing a Span

Let's look deeper into the final child span of the unqork-applications:executeCurrentWorkflowStep process to understand what happened during the workflow execution. In the image to the right, we can see detailed information about the execution step. From the Splunk tags, we get insight that the executed component was an integrator (or Unqork Plug-In component) with a Property ID of plugCreateSubmissionError. The tags also display the module name and ID where the component exists. The following table highlights some of the most important information: Element Description componentId The Property ID of the component executed in the workflow step. componentName The type of Unqork component executed in the workflow step. moduleId The unique identifier of the module where the component exists. moduleName The name of the module where the component exists.

Error and Latency Visualizations

Splunk also generates powerful visualizations based on your span data. That way, you can monitor your executions and determine if there are request errors or latency. The images below are examples of the insights you can gather from the performance of your environment, applications, and components.

To customize your metrics and take advantage of these analytics, your administrator must add Monitoring MetricSets. You can use Monitoring MetricSets to monitor request and error rates, durations, and so on based on your traces and spans. Your administrator can customize Monitoring MetricSets from the Splunk APM settings.

The image below is an example of the types of MetricSets you can customize:

TIP  To learn more about Monitoring MetricSets, view Splunk's APM documentation: https://docs.splunk.com/observability/en/apm/span-tags/metricsets.html.