<%NUMBERING1%>.<%NUMBERING2%>.<%NUMBERING3%> PRTG Manual: Application Server Health (Autonomous) Sensor

Sensor Name

Enter a name to identify the sensor. By default, PRTG shows this name in the device tree, as well as in alarms, logs, notifications, reports, maps, libraries, and tickets.

If the name contains angle brackets (<>), PRTG replaces them with braces ({}) for security reasons. For more information, see the Knowledge Base: What security features does PRTG include?

Parent Tags

The tags that the sensor inherits from its parent device, parent group, and parent probe.

This setting is for your information only. You cannot change it.

Tags

Enter one or more tags. Confirm each tag with the Spacebar key, a comma, or the Enter key. You can use tags to group objects and use tag-filtered views later on. Tags are not case-sensitive. Tags are automatically inherited.

It is not possible to enter tags with a leading plus (+) or minus (-) sign, nor tags with parentheses (()) or angle brackets (<>).

For performance reasons, it can take some minutes until you can filter for new tags that you added.

The sensor has the following default tags that are automatically predefined in the sensor's settings when you add the sensor:

• appserverhealthsensor

Priority

Select a priority for the sensor. This setting determines the position of the sensor in lists. The highest priority is at the top of a list. Choose from the lowest priority () to the highest priority ().

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, the last value of the primary channel is always displayed below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how different channels are shown for this sensor:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. All channels with this unit are stacked on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

API Requests

The number of API requests

Average CPU Utilization (%)

The CPU usage of the PRTG application server process (%)

Core Messages

The number of messages that the PRTG application server receives from the PRTG core server

CPU Utilization of Garbage Collector (%)

The CPU usage of the PRTG application server garbage collector (%)

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down state

Dropped API Requests

The number of API requests per second that were dropped due to timeouts

This channel has default limits

• Upper error limit: 5

• Upper warning limit: 1

Free Memory (%)

The free system memory of the PRTG application server system (%)

Health

The sums of the PRTG application server state as a value between 100% (healthy) and 0% (unhealthy). Investigate if values are frequently under 100%.

This channel is the primary channel by default.

Heap Size (%)

The heap size of the memory that the PRTG application server uses (%)

Process Memory Usage

The memory usage of the PRTG application server process

Response Time

The average response time of the new API

Response Time 95th Percentile

The 95th percentile of the response time of the new API

Routines

The number of concurrently running routines in the PRTG application server

Sessions

The number of active user sessions

Stack Size (%)

The relative stack size of the memory that the PRTG application server uses (%)