Go to your CloudWatch Console.
Click Metrics.
On Custom Namespaces, click the MonitoringApp
namespace.
You should see a new metrics dimensions: FunctionName, FunctionVersion, operation, service
.
Click it and select all metrics available.
Go back to the CloudWatch Metrics console and select the Lambda
namespace
Click the FunctionName, FunctionVersion dimension and select all metrics available.
Filter your metric by monitoring-app
and select all available metrics.
Validate the metrics you just selected together with the ones we selected in the previous step.