Foglight for Container Management 1.2

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.

Figure 31. Docker Swarm Analytics Navigation

Heatmap analytics

Figure 32. Docker Swarm Heatmap Analytics Dashboard

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

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Topology Type: Indicates the monitored topology object, including Docker Container and Docker Host.

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Cluster: Lists all clusters available in the monitored Docker Swarm environment.

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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 .

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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.

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Color Metric: Renders the color of rectangle based upon the selected color metric.

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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:

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Container Explorer view

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Docker Host Explorer view

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Container metrics

Scatter Plot analytics

Figure 33. Docker Swarm Scatter Plot Analytics Dashboard

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

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Topology Type: Indicates the monitored topology object, including Docker Container and Docker Host.

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Cluster: Lists all clusters available in the monitored Docker Swarm environment.

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X Axis: Indicates which metrics will be plotted on X axis.

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Y Axis: Indicates which metrics will be plotted on Y axis.

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Rendering related metrics:

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Color Metric: Renders the color of circle based upon the selected metrics.

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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:

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Container Explorer view

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Docker Host Explorer view

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Container metrics

Metrics

Kubernetes metrics

Pod metrics

Table 4. Pod metrics
Metric name	Description
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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Foglight for Container Management 1.2 - User Guide

Docker Swarm analytics

Heatmap analytics

Scatter Plot analytics

Metrics