Create graph for Linux Load Average using Grafana, InfluxDB and collectd

SCREENSHOT 11) Add another query to the same graph.

Click on the button “+ Query”.

main menu
add a query

SCREENSHOT 12) Select load_midterm measurement and limit it by selecting the host and type.

Set the alias to “5 min” and add a third query “C”. Now, there are two lines in the graph.

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select load_midterm measurement

SCREENSHOT 13) Select load_shortterm measurement and limit it by selecting the host and type.

Set the alias to “1 min” and add a third query “C”. Now, there are three lines in the graph for each query showing the Linux load average of 1,5,15 values.

main menu
select load_shortterm measurement

SCREENSHOT 14) Set the title of the current graph – “Load Average”.

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panel options title

SCREENSHOT 15) Set the “Tooltip mode” to “All” to show all the queries’ results for a given time in the tooltip.

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tooltip

SCREENSHOT 16) Select the legend type “Table” for better visibility.

Scroll down if needed.

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Legend table

SCREENSHOT 17) Add additional values in the legend for the measurements like the current value of the measurements and so on.

Add “Last*” and select another values.

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legend values

SCREENSHOT 18) 4 calculations are selected to be shown in the graph legend – Last, Mean, Min, Max.

These 4 calculations are meaningful for the current measurement – load average. There are many more in the drop-down list.

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legend last mean min max

SCREENSHOT 19) Scrow down to the Graphs styles sub-menu and chose “Always” for the “Connect null values”

If there are some missing values there won’t be gaps in the graphs.

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connect null values

SCREENSHOT 20) The units of the load average are just a number.

main menu
Standard options Unit Number

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