manual:config:visualisation:graphs:simple

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
manual:config:visualisation:graphs:simple [2018/06/14 06:50]
martins-v caption about history/trends changed since 3.4.3
manual:config:visualisation:graphs:simple [2019/10/07 06:35]
127.0.0.1 external edit
Line 10: Line 10:
  
 {{manual:​config:​simple_graph.png?​600|}} {{manual:​config:​simple_graph.png?​600|}}
 +
 +<​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 ===
Line 17: Line 19:
 Note that such options as //Today//, //This week//, //This month//, //This year// display the whole period, including the hours/days in the future. //Today so far//, in contrast, only displays the hours passed. Note that such options as //Today//, //This week//, //This month//, //This year// display the whole period, including the hours/days in the future. //Today so far//, in contrast, only displays the hours passed.
  
-Once a period is selected, it can be moved back and forth in time by clicking on the {{:​manual:​config:​visualisation:​left_arrow.png|}} {{:​manual:​config:​visualisation:​right_arrow.png|}} arrow buttons. The //Zoom out// button allows to zoom out the period two times or by 50% in each direction. The whole time period selector can be collapsed by clicking on the tab label containing the selected period string.+Once a period is selected, it can be moved back and forth in time by clicking on the {{:​manual:​config:​visualisation:​left_arrow.png|}} {{:​manual:​config:​visualisation:​right_arrow.png|}} arrow buttons. The //Zoom out// button allows to zoom out the period two times or by 50% in each direction. Zoom out is also possible by double-clicking in the graphs. The whole time period selector can be collapsed by clicking on the tab label containing the selected period string.
  
 The //From/To// fields display the selected period in either: The //From/To// fields display the selected period in either:
Line 24: Line 26:
   * 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
Line 43: Line 45:
 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 itemsa link to History is available ​in //​Monitoring -> Latest data//.</​note>​+In case no time value is specified or field is left blanktime 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 ===
Line 53: Line 55:
 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. ​
Line 72: Line 74:
  
   * 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).
 +
 +=== Absence of data ===
 +
 +For items with a regular update interval, nothing is displayed in the graph if item data are not collected.
 +
 +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.
 +
 === Switching to raw values === === Switching to raw values ===