Zabbix Documentation 3.4

2.23.04.04.2 (current)In development:4.4 (devel)Unsupported:1.82.02.43.23.4

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manual:config:visualisation:graphs:simple

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manual:config:visualisation:graphs:simple [2015/10/21 10:05]
martins-v updating content
manual:config:visualisation:graphs:simple [2018/10/30 09:19] (current)
martins-v 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
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-==== - #1 Simple graphs ====+==== 1 Simple graphs ====
  
 === Overview === === Overview ===
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 {{manual:​config:​simple_graph.png?​600|}} {{manual:​config:​simple_graph.png?​600|}}
  
-**Time period selector**+=== Time period selector ​===
  
 Take note of the time period selector above the graph. It allows you to select the desired time period easily. Take note of the time period selector above the graph. It allows you to select the desired time period easily.
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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>​ <​note>​Simple graphs are provided for all numeric items. For textual items, a link to History is available in //​Monitoring -> Latest data//​.</​note>​
  
-**Recent data vs longer periods**+=== Recent data vs longer periods ​===
  
 For very recent data a **single** line is drawn connecting each received value. The single line is drawn as long as there is at least one horizontal pixel available for one value. For very recent data a **single** line is drawn connecting each received value. The single line is drawn as long as there is at least one horizontal pixel available for one value.
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 == Generating from history/​trends == == Generating from history/​trends ==
  
-Graphs can be drawn based on either item [[:​manual/​config/​items/​history_and_trends|history or trends]]. A grey caption at the bottom right of a graph indicates where the data come from.+Graphs can be drawn based on either item [[:​manual/​config/​items/​history_and_trends|history or trends]]. ​ 
 + 
 +A grey caption at the bottom right of a graph indicates where the data come from.  
 + 
 +<note important>​Since Zabbix 3.4.3, this caption showing history/​trends as the source is vertical and displayed only for the users who have frontend [[:​manual/​web_interface/​debug_mode|debug mode]] activated.</​note>​
  
 Several factors influence whether history of trends is used: Several factors influence whether history of trends is used:
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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).
-== Switching to raw values ==+ 
 +=== 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 ​===
  
 A dropdown on the upper right allows to switch from the simple graph to the //​Values/​500 latest values// listings. This can be useful for viewing the numeric values making up the graph. A dropdown on the upper right allows to switch from the simple graph to the //​Values/​500 latest values// listings. This can be useful for viewing the numeric values making up the graph.
  
 The values represented here are raw, i.e. no units or postprocessing of values is used. Value mapping, however, is applied. The values represented here are raw, i.e. no units or postprocessing of values is used. Value mapping, however, is applied.
 +=== Known issues ===
  
 +See [[:​manual/​installation/​known_issues#​graphs|known issues]] for graphs.