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Foglight for Container Management 1.2 - User Guide

Docker Swarm analytics

In the Container dashboard, choose Docker Swarm from the header. Then click Analytics from the header, a drop down view will display with Heatmap and Scatter on it. Click Heatmap will navigate to the Docker Swarm Heatmap Analytics dashboard, while click Scatter will navigate to the Docker Swarm Scatter Plot Analytics dashboard.

Heatmap analytics

Heat maps will be refreshed automatically when you change either of the following fields:

Topology Type: Indicates the monitored topology object, including Docker Container and Docker Host.
Cluster: Lists all clusters available in the monitored Docker Swarm environment.
Selected Metric: Populates a rectangle based upon the selected metrics. For example, if you select Memory Time Used from the Selected Metric drop-down list, the rectangle area will be populated based on the used CPU time for the selected topology object. For more information about metrics, refer to Docker Swarm metrics .
Rendering related metrics: For example, if you select CPU Utilization and Red to Green, the rectangle of the topology object that has larger value of CPU Utilization will be rendered in red.
Color Metric: Renders the color of rectangle based upon the selected color metric.
Color Pattern: Offers two patterns, Red to Green (larger value shows in red) or Green to Red (larger value shows in green).

Figure 32 shows an example of heat map. This sample diagram represents the “voting_redis.1.nwfx2moecimr7v5sb3gmqgtmk” has the maximum amounts of CPU Utilization which is the largest in size, and also it has the higher Memory Utilization since it is in Red. If you switch the Color Pattern, then “voting_redis.1.nwfx2moecimr7v5sb3gmqgtmk” will turn to green. Clicking the object name on the heat map directs you to the relevant object Explorer dashboard. For more information, see:

Scatter Plot analytics

The points on the chart will be refreshed automatically when you change either of the following fields:

Topology Type: Indicates the monitored topology object, including Docker Container and Docker Host.
Cluster: Lists all clusters available in the monitored Docker Swarm environment.
X Axis: Indicates which metrics will be plotted on X axis.
Y Axis: Indicates which metrics will be plotted on Y axis.
Color Pattern: Offers two patterns, Red to Green (larger value shows in red) or Green to Red (larger value shows in green).

Figure 33 shows an example of Scatter Plot analytics. The purple circle in the middle represents the following: “voting_redis.1.nwfx2moecimr7v5sb3gmqgtmk” CPU Utilization is 2.9%, its Memory Usage is 0.1%, and its value of Network Transfer Bytes is not high. For more information, see:

Metrics

 

Table 4. Pod metrics

CPU Usage

CPU usage on all cores in millicores.

CPU Usage Rate

CPU usage rate on all cores in millicores/second.

CPU Request

CPU request (the guaranteed amount of resources) in millicores.

CPU Limit

CPU hard limit in millicores.

CPU Utilization

Percentage of CPU usage / CPU limit if user configured CPU limit for this pod.

Memory Usage

Total memory usage in bytes.

Memory Working Set

Total working set usage. Working set is the memory being used and not easily dropped by the kernel.

Memory Rss

RSS memory usage.

Memory Request

Memory request (the guaranteed amount of resources) in bytes.

Memory Limit

Memory hard limit in bytes.

Memory Page Faults

Number of page faults.

Memory Major Page Faults

Number of major page faults.

Memory Page Faults Rate

Number of page faults per second.

Memory Major Page Faults Rate

Number of major page faults per second.

Memory Utilization

Percentage of Memory usage / Memory limit if user configured Memory limit for this pod.

Network Send

Total send bytes.

Network Receive

Total receive bytes.

Network Send Rate

Total send bytes per second.

Network Receive Rate

Total receive bytes per second.

Network Send Errors

Total send errors count.

Network Receive Errors

Total receive errors count.

Network Send Errors Rate

Total send errors count per second.

Network Receive Errors Rate

Total receive errors count per second.

Network Transfer

Total send and receive bytes.

Network Transfer Rate

Total send and receive bytes per second.

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