PRTG Manual: Amazon CloudWatch EC2 Sensor

The Amazon CloudWatch EC2 sensor monitors the performance of the Amazon Cloud service Elastic Compute Cloud (EC2).

Amazon CloudWatch EC2 Sensor

Amazon CloudWatch EC2 Sensor

i_square_cyanFor a detailed list and descriptions of the channels that this sensor can show, see section Channel List.

i_square_cyanFor a list of metrics that this sensor supports, see section Supported Metrics.

Sensor in Other Languages

  • Dutch: Amazon CloudWatch EC2
  • French: Amazon CloudWatch EC2
  • German: Amazon CloudWatch EC2
  • Japanese: Amazon CloudWatch EC2
  • Portuguese: Amazon CloudWatch EC2
  • Russian: Amazon CloudWatch EC2
  • Simplified Chinese: Amazon CloudWatch EC2
  • Spanish: Amazon CloudWatch EC2

Remarks

  • This sensor has a medium performance impact.
  • This sensor only shows the channels for which it receives data from Amazon. You can check the availability of data in your CloudWatch Console on the Amazon Web Services (AWS) website. To know which channels are possible for the various services of this sensor, see section Supported Metrics. If the sensor has not received data from Amazon for more than 6 hours, it shows the Down status.
  • Configure notification triggers with a latency of 0 seconds to receive all notifications for this sensor ([...] for at least 0 seconds).
  • To know which dimensions you can monitor, see section Supported Dimensions.
  • Amazon charges you for each AWS API request that the sensor sends to the Amazon servers. For details, see the Knowledge Base: How much does Amazon charge for using Amazon CloudWatch sensors in PRTG?

Detailed Requirements

Requirement

Description

Permissions for the AWS API key

This sensor requires sufficient rights to query data from the AWS API

i_square_cyanFor more information, see the Knowledge Base: How do I set permissions for the Amazon Web Services (AWS) API key to use certain sensors in PRTG?

.NET 4.7.2 or later

This sensor requires .NET 4.7.2 or later to be installed on the probe system (on every cluster node, if on a cluster probe).

i_round_redIf the framework is missing, you cannot create this sensor.

i_square_cyanFor more information, see the Knowledge Base: Which .NET version does PRTG require?

Add Sensor

The Add Sensor dialog appears when you manually add a new sensor to a device. It only shows the settings that are required to create the sensor. You can change nearly all settings on the sensor's Settings tab after creation.

PRTG looks for available instances or auto scaling groups.

i_round_blueThis can take up to several minutes.

i_round_blueThe settings that you select in the Add Sensor dialog are valid for all sensors that you create when you finish the dialog.

Amazon CloudWatch Specific

Setting

Description

Services

Select the services that you want to monitor. PRTG creates one sensor for each service that you select.

i_round_blueEnable check boxes in front of the respective lines to select the items. Use the check box in the table header to select all items or to cancel the selection. In large tables, use the search function in the upper-right corner.

Basic Sensor Settings

Click the Settings tab of a sensor to change its settings.

Basic Sensor Settings

Basic Sensor Settings

Setting

Description

Sensor Name

Enter a name to identify the sensor.

Parent Tags

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

i_round_blueThis 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.

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

i_round_blueFor 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:

  • cloudwatchsensor
  • ec2

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 (i_priority_1) to the highest priority (i_priority_5).

i_round_blueUsually, a sensor connects to the IP Address/DNS Name of the parent device. See the device settings for details. For some sensors, you can explicitly define the monitoring target in the sensor settings.

Amazon CloudWatch Specific

Amazon CloudWatch Specific

Amazon CloudWatch Specific

Setting

Description

Region

Shows the region in which the AWS instance runs. It is one of the following regions:

  • US East (Northern Virginia)
  • US East (Ohio)
  • US West (Northern California)
  • US West (Oregon)
  • Europe (Stockholm)
  • Europe (Ireland)
  • Europe (London)
  • Europe (Paris)
  • Europe (Frankfurt)
  • Asia Pacific (Tokyo)
  • Asia Pacific (Seoul)
  • Asia Pacific (Mumbai)
  • Asia Pacific (Singapore)
  • Asia Pacific (Sydney)
  • South America (São Paulo)
  • Canada (Central)

i_round_bluePRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

i_square_cyanFor more information, see section Supported Regions and Their Codes.

Description

Shows the description of the AWS service instance that this sensor monitors.

i_round_bluePRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

ID

Shows the ID of the AWS instance that this sensor monitors.

i_round_bluePRTG shows this value for reference purposes only. If you need to change this value, add the sensor anew.

Result Handling

Define what PRTG does with the sensor result:

  • Discard result: Do not store the sensor result.
  • Store result: Store the last sensor result in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file names are Result of Sensor [ID].txt and Result of Sensor [ID].Data.txt. This setting is for debugging purposes. PRTG overwrites these files with each scanning interval.

i_podThis option is not available when the sensor runs on the hosted probe of a PRTG Hosted Monitor instance.

i_round_blueIn a cluster, PRTG stores the result in the PRTG data directory of the master node.

Detailed Monitoring

Select whether you would like to import more or less detailed monitoring data from the AWS API:

  • Enabled: You get 1 dataset per minute.
  • Disabled (default): You get 1 dataset per 5 minutes.

i_round_redTo use detailed monitoring, you must also activate it for your monitored instance in the AWS web console.

Sensor Display

Sensor Display

Sensor Display

Setting

Description

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.

i_round_blueYou can set a different primary channel later by clicking b_channel_primary 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.
    i_round_redYou 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 enable Stack channels on top of each other as Graph Type. 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.

Inherited Settings

By default, all of these settings are inherited from objects that are higher in the hierarchy. We recommend that you change them centrally in the root group settings if necessary. To change a setting for this object only, click b_inherited_enabled under the corresponding setting name to disable the inheritance and to display its options.

i_square_cyanFor more information, see section Inheritance of Settings.

Scanning Interval

i_round_blueThis sensor has a fixed minimum scanning interval for performance reasons. You cannot use a shorter scanning interval. Consequently, shorter scanning intervals in the Monitoring settings are not available for this sensor.

i_round_blueThe minimum scanning interval of this sensor is 15 minutes.

Scanning Interval

Scanning Interval

i_square_cyanFor more information, see section Root Group Settings, section Scanning Interval.

Schedules, Dependencies, and Maintenance Window

i_round_blueYou cannot interrupt the inheritance for schedules, dependencies, and maintenance windows. The corresponding settings from the parent objects are always active. However, you can define additional schedules, dependencies, and maintenance windows. They are active at the same time as the parent objects' settings.

Schedules, Dependencies, and Maintenance Window

Schedules, Dependencies, and Maintenance Window

i_square_cyanFor more information, see section Root Group Settings, section Schedules, Dependencies, and Maintenance Window.

Access Rights

Access Rights

Access Rights

i_square_cyanFor more information, see section Root Group Settings, section Access Rights.

Channel Unit Configuration

i_round_blueWhich channel units are available depends on the sensor type and the available parameters. If no configurable channels are available, this field shows No configurable channels.

Channel Unit Configuration

Channel Unit Configuration

i_square_cyanFor more information, see section Root Group Settings, section Channel Unit Configuration.

Supported Metrics

The Amazon CloudWatch EC2 sensor supports the following metrics:

  • CPUUtilization (Average)
  • NetworkIn (Sum)
  • NetworkOut (Sum)
  • DiskReadBytes (Sum)
  • DiskReadOps (Sum)
  • DiskWriteBytes (Sum)
  • DiskWriteOps (Sum)
  • CPUCreditUsage (Average)
  • CPUCreditBalance (Average)
  • StatusCheckFailed (Maximum)
  • StatusCheckFailed_Instance (Maximum)
  • StatusCheckFailed_System (Maximum)

Supported Dimensions

The Amazon CloudWatch EC2 sensor supports the following dimensions:

  • Instance
  • Auto Scaling Group

Supported Regions and Their Codes

Region

Code

US East (Northern Virginia)

us-east-1

US East (Ohio)

us-east-2

US West (Northern California)

us-west-1

US West (Oregon)

us-west-2

Europe (Stockholm)

eu-north-1

Europe (Ireland)

eu-west-1

Europe (London)

eu-west-2

Europe (Paris)

eu-west-3

Europe (Frankfurt)

eu-central-1

Asia Pacific (Tokyo)

ap-northeast-1

Asia Pacific (Seoul)

ap-northeast-2

Asia Pacific (Mumbai)

ap-south-1

Asia Pacific (Singapore)

ap-southeast-1

Asia Pacific (Sydney)

ap-southeast-2

South America (São Paulo)

sa-east-1

Canada (Central)

ca-central-1

Channel List

i_round_blueWhich channels the sensor actually shows might depend on the target device, the available components, and the sensor setup.

Channel

Description

CPU Credit Balance

The CPU credit balance

CPU Credit Usage

The CPU credit usage

CPU Utilization

The CPU usage in percent

i_round_blueThis channel is the primary channel by default.

Disk Read

The disk read speed in bytes per second

Disk Write

The disk write speed in bytes per second

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 status in percent.

Network In

The incoming network load in bytes per second

Network Out

The outgoing network load in bytes per second

Read Ops

The number of disk read operations per second

Status

The EC2 status

  • Up status: Ok
  • Down status: Failed

Status (Instance)

The EC2 instance status

  • Up status: Ok
  • Down status: Failed

Status (System)

The EC2 system status

  • Up status: Ok
  • Down status: Failed

Write Ops

The number of disk write operations per second

More

i_square_blueKnowledge Base

How do I set permissions for the Amazon Web Services (AWS) API key to use certain sensors in PRTG?

How much does Amazon charge for using Amazon CloudWatch sensors in PRTG?

Which .NET version does PRTG require?

What security features does PRTG include?