Azure Application Gateway monitoring

Dynatrace ingests metrics from Azure Metrics API for Azure Application Gateway. You can view metrics for each service instance, split metrics into multiple dimensions, and create custom charts that you can pin to your dashboards.

Prerequisites

Dynatrace version 1.199+
Environment ActiveGate version 1.195+

Enable monitoring

To enable monitoring for this service, you first need to set up integration with Azure Monitor.

Add the service to monitoring

In order to view the service metrics, you must add the service to monitoring in your Dynatrace environment.

To add a service to monitoring

In the Dynatrace menu, go to Settings > Cloud and virtualization and select Azure.
On the Azure overview page, select Edit for the desired Azure instance.
Go to Services and select Add service, choose the desired service name from the list, and select Add service.
Select Save changes to save your configuration.

Monitor resources based on tags

You can choose to monitor resources based on existing Azure tags, as Dynatrace automatically imports them from service instances.
To monitor resources based on tags

In the Dynatrace menu, go to Settings and select Cloud and virtualization > Azure.
On the Azure overview page, select the Edit icon for the Azure instance.
Set Resources to be monitored to Monitor resources selected by tags.
Enter key/value pairs to identify resources to exclude from monitoring or include in monitoring. You can enter multiple key/value pairs: each time you enter a pair, another empty row is displayed for you to edit as needed.
Select Save to save your configuration.

To import the Azure tags automatically into Dynatrace, turn on Capture Azure tags automatically.

Configure service metrics

Once you add a service, Dynatrace starts automatically collecting a suite of metrics for this particular service. These are recommended metrics.

Recommended metrics:

Are enabled by default
Can't be disabled
Can have recommended dimensions (enabled by default, can't be disabled)
Can have optional dimensions (disabled by default, can be enabled).

Apart from the recommended metrics, most services have the possibility of enabling optional metrics.

Optional metrics:

Can be added and configured manually

To add and configure metrics

In the Dynatrace menu, go to Settings > Cloud and virtualization and select Azure.
On the Azure overview page, scroll down and select Edit for the desired Azure instance.
Go to Services and select Manage services.
To add a metric, select the service for which you want to add metrics.
Select Add new metric.
From the menu, select the metric you want.
Select Add metric to add the metric to monitoring.
To configure a metric, select Edit.
Select Apply to save your configuration.

View service metrics

You can view the service metrics in your Dynatrace environment either on the custom device overview page or on your Dashboards page.

View metrics on the custom device overview page

To access the custom device overview page

In the Dynatrace menu, go to Technologies.
Filter by service name and select the relevant custom device group.
Once you select the custom device group, you're on the custom device group overview page.
The custom device group overview page lists all instances (custom devices) belonging to the group. Select an instance to view the custom device overview page.

View metrics on your dashboard

Once you add a service to monitoring, a preset dashboard for the respective service containing all recommended metrics is automatically created on your Dashboards page. You can look for specific dashboards by filtering by Preset and then by Name.

For existing monitored services, you might need to resave your credentials for the preset dashboard to appear on the Dashboards page. To resave your credentials, go to Settings > Cloud and virtualization > Azure, select the desired Azure instance, then select Save.

You can't make changes on a preset dashboard directly, but you can clone and edit it. To clone a dashboard, open the browse menu (…) and select Clone.
To remove a dashboard from the dashboards list, you can hide it. To hide a dashboard, open the browse menu (…) and select Hide.

Hiding a dashboard doesn't affect other users.

Available metrics

This service monitors a part of Azure Application Gateway (Microsoft.Network/applicationGateways). While you have this service configured, you can't have Azure Application Gateway service turned on.

Name	Description	Dimensions	Unit
Throughput	Number of bytes per second the Application Gateway has served		BytePerSecond
Unhealthy host count	Number of unhealthy backend hosts	Backend pool HTTP settings	Count
Healthy host count	Number of healthy backend hosts	Backend pool HTTP settings	Count
Total requests	Count of successful requests that Application Gateway has served	Backend pool HTTP settings	Count
Requests per minute per healthy host	Average request count per minute per healthy backend host in a pool	Backend pool HTTP settings	Count
Failed requests	Count of failed requests that Application Gateway has served	Backend pool HTTP settings	Count
Response status	Http response status returned by Application Gateway	HTTP status	Count
Current connections	Count of current connections established with Application Gateway		Count
CPU utilization	Current CPU utilization of the Application Gateway		Percent
New connections per second	New connections per second established with Application Gateway		PerSecond
Current capacity units	Capacity Units consumed		Count
Fixed billable capacity units	Minimum capacity units that will be charged		Count
Estimated billed capacity units	Estimated capacity units that will be charged		Count
Current compute units	Compute Units consumed		Count
Backend response status	The number of HTTP response codes generated by the backend members. This does not include any response codes generated by the Application Gateway.	Backend server, Backend pool, Backend HTTP setting, HTTP status	Count
Client TLS protocol	The number of TLS and non-TLS requests initiated by the client that established connection with the Application Gateway. To view TLS protocol distribution, filter by the dimension TLS Protocol.	Listener, TLS protocol	Count
Bytes sent	The total number of bytes sent by the Application Gateway to the clients	Listener	Byte
Bytes received	The total number of bytes received by the Application Gateway from the clients	Listener	Byte
Client RTT	Round trip time between clients and Application Gateway. This metric indicates how long it takes to establish connections and return acknowledgements	Listener	MilliSecond
Application gateway total time	Time that it takes for a request to be processed and its response to be sent. This is the interval from the time when Application Gateway receives the first byte of an HTTP request to the time when the response send operation finishes. It's important to note that this usually includes the Application Gateway processing time, time that the request and response packets are traveling over the network and the time the backend server took to respond.	Listener	MilliSecond
Backend connect time	Time spent establishing a connection with a backend server	Listener, Backend server, Backend pool, Backend HTTP setting	MilliSecond
Backend first byte response time	Time interval between start of establishing a connection to backend server and receiving the first byte of the response header, approximating processing time of backend server	Listener, Backend server, Backend pool, Backend HTTP setting	MilliSecond
Backend last byte response time	Time interval between start of establishing a connection to backend server and receiving the last byte of the response body	Listener, Backend server, Backend pool, Backend HTTP setting	MilliSecond
Matched count	Web Application Firewall Total Rule Distribution for the incoming traffic	Rule group, Rule ID	Count
Blocked count	Web Application Firewall blocked requests rule distribution	Rule group, Rule ID	Count