manual:config:visualisation:graphs:simple
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manual:config:visualisation:graphs:simple [2018/06/14 07:17] martins-v double-click option for zoom out in graphs |
manual:config:visualisation:graphs:simple [2019/10/07 06:35] 127.0.0.1 external edit |
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| {{manual:config:simple_graph.png?600|}} | {{manual:config:simple_graph.png?600|}} | ||
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| + | <note>Simple graphs are provided for all numeric items. For textual items, a link to History is available in //Monitoring -> Latest data//.</note> | ||
| === Time period selector === | === Time period selector === | ||
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| * relative time syntax, e.g.: ''now-1d'' | * relative time syntax, e.g.: ''now-1d'' | ||
| - | A date in relative format can contain only one mathematical operation (- or +). For relative time the following abbreviations are supported: | + | A date in relative format can contain one or several mathematical operations (- or +), e.g. ''now-1d'' or ''now-1d-2h+5m''. For relative time the following abbreviations are supported: |
| * now | * now | ||
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| Another way of controlling the displayed time is to highlight an area in the graph with the left mouse button. The graph will zoom into the highlighted area once you release the left mouse button. | Another way of controlling the displayed time is to highlight an area in the graph with the left mouse button. The graph will zoom into the highlighted area once you release the left mouse button. | ||
| - | <note>Simple graphs are provided for all numeric items. For textual items, a link to History is available in //Monitoring -> Latest data//.</note> | + | In case no time value is specified or field is left blank, time value will be set to "00:00:00". This doesn't apply to today's date selection: in that case time will be set to current value. |
| === Recent data vs longer periods === | === Recent data vs longer periods === | ||
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| Working time (working days) is displayed in graphs as a white background, while non-working time is displayed in grey (with the //Original blue// default frontend theme). | Working time (working days) is displayed in graphs as a white background, while non-working time is displayed in grey (with the //Original blue// default frontend theme). | ||
| - | {{manual:config:graph_workingtime1.png?550|}} | + | {{manual:config:graph_working_time.png?550|}} |
| Working time is always displayed in simple graphs, whereas displaying it in [[custom#configuring_custom_graphs|custom graphs]] is a user preference. | Working time is always displayed in simple graphs, whereas displaying it in [[custom#configuring_custom_graphs|custom graphs]] is a user preference. | ||
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| * if trends are disabled, item history is used for graph building - if available for that period. This is supported starting with Zabbix 2.2.1 (before, disabled trends would mean an empty graph for the period even if item history was available). | * if trends are disabled, item history is used for graph building - if available for that period. This is supported starting with Zabbix 2.2.1 (before, disabled trends would mean an empty graph for the period even if item history was available). | ||
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| + | === Absence of data === | ||
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| + | For items with a regular update interval, nothing is displayed in the graph if item data are not collected. | ||
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| + | However, for trapper items and items with a scheduled update interval (and regular update interval set to 0), a straight line is drawn leading up to the first collected value and from the last collected value to the end of graph; the line is on the level of the first/last value respectively. | ||
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| === Switching to raw values === | === Switching to raw values === | ||