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20 Top hosts


This widget provides a way to create custom tables for displaying the data situation, allowing to display Top N-like reports and progress-bar reports useful for capacity planning.


To configure, select Top hosts as type:

In addition to the parameters that are common for all widgets, you may set the following specific options:

Host groups Host groups to display data for.
Hosts Hosts to display data for.
Host tags Specify tags to limit the number of hosts displayed in the widget. It is possible to include as well as exclude specific tags and tag values. Several conditions can be set. Tag name matching is always case-sensitive.

There are several operators available for each condition:
Exists - include the specified tag names
Equals - include the specified tag names and values (case-sensitive)
Contains - include the specified tag names where the tag values contain the entered string (substring match, case-insensitive)
Does not exist - exclude the specified tag names
Does not equal - exclude the specified tag names and values (case-sensitive)
Does not contain - exclude the specified tag names where the tag values contain the entered string (substring match, case-insensitive)
There are two calculation types for conditions:
And/Or - all conditions must be met, conditions having the same tag name will be grouped by the Or condition
Or - enough if one condition is met
Columns Add data columns to display.
The column order determines their display from left to right.
Columns can be reordered by dragging up and down by the handle before the column name.
Order Specify the ordering of rows:
Top N - in descending order by the Order column aggregated value
Bottom N - in ascending order by the Order column aggregated value
Order column Specify the column from the defined Columns list to use for Top N or Bottom N ordering.
Host count Count of host rows to be shown.
Column configuration

Common column parameters:

Name Name of the column.
Data Data type to display in the column:
Item value - value of the specified item
Host name - host name of the item specified in the Item value column
Text - static text string
Base color Background color of the column; fill color if Item value data is displayed as bar/indicators.
For Item value data the default color can be overridden by custom color, if the item value is over one of the specified "Thresholds".

Specific parameters for item value columns:

Item Select the item.
Time shift Specify time shift if required.
You may use time suffixes in this field. Negative values are allowed.
Aggregation function Specify which aggregation function to use:
min - display the smallest value
max - display the largest value
avg - display the average value
sum - display the sum of values
count - display the count of values
first - display the first value
last - display the last value
none - display all values (no aggregation)
Aggregation allows to display an aggregated value for the chosen interval (5 minutes, an hour, a day), instead of all values.
Aggregation interval Specify the interval for aggregating values. You may use time suffixes in this field. A numeric value without a suffix will be regarded as seconds.
This field will not be displayed if Aggregation function is "none".
Display Define how the value should be displayed:
As is - as regular text
Bar - as solid, color-filled bar
Indicators - as segmented, color-filled bar
Min Minimum value for bar/indicators.
Max Maximum value for bar/indicators.
Thresholds Specify threshold values when the background/fill color should change. The list will be sorted in ascending order when saved.

Specific parameters for text columns:

Text Enter the string to display. May contain host and inventory macros.