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# 4 Overview

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#### Overview

The *Monitoring → Overview* section may display either:

-   *Trigger overview* - an overview of trigger states
-   *Data overview* - a comparison of data for various hosts at once

The list of available pages appears upon pressing on *Overview* in the
*Monitoring* menu section. It is also possible to switch between pages
by using a title dropdown in the top left corner.

|   |   |
|---|---|
|![](../../../../../assets/en/manual/web_interface/overview_menu.png)|![](../../../../../assets/en/manual/web_interface/overview_selector.png)|
|Third-level menu.|Title dropdown.|

The following additional display options are available:

-   select horizontal or vertical display of information in the *Hosts
    location* dropdown

Note that 50 records are displayed by default (configurable in
*Administration* → *General* →
*[GUI](/manual/web_interface/frontend_sections/administration/general#gui)*,
using the *Max number of columns and rows in overview tables* option).
If more records exist than are configured to display, a message is
displayed at the bottom of the table, asking to provide more specific
filtering criteria. There is no pagination.

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#### Overview of triggers

In the next screenshot *Trigger overview* is selected. As a result, the
trigger states of a local host are displayed as colored blocks (the
color of problem triggers depends on the problem severity color, which
can be adjusted in the [problem
update](/manual/acknowledges#updating_problems) screen):

![](../../../../../assets/en/manual/web_interface/overview_triggers.png){width="600"}

Note that recent trigger changes (within the last 2 minutes) will be
displayed as blinking blocks.

Blue up and down arrows indicate triggers that have dependencies. On
mouseover, dependency details are revealed.

A checkbox icon indicates acknowledged problems. All problems or
resolved problems of the trigger must be acknowledged for this icon to
be displayed.

Clicking on a trigger block provides context-dependent links to problem
events of the trigger, the problem acknowledgment screen, trigger
configuration, trigger URL or a simple graph/latest values list.

![](../../../../../assets/en/manual/web_interface/overview_links0.png)

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##### Buttons

Button to the right offers the following option:

|   |   |
|---|---|
|![](../../../../../assets/en/manual/web_interface/button_info.png)|Additional information on the page content is displayed if you roll the mouse over this button.|

View mode buttons being common for all sections are described on the
[Monitoring](/manual/web_interface/frontend_sections/monitoring#view_mode_buttons)
page.

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##### Using filter

You can use the filter to display only the problems you are interested
in. For better search performance, data is searched with macros
unresolved.

The filter is located above the table.

![](../../../../../assets/en/manual/web_interface/overview_triggers_filter.png){width="600"}

|Parameter|Description|
|---------|-----------|
|*Show*|Filter by problem status:<br>**Recent problems** - unresolved and recently resolved problems are displayed (default)<br>**Problems** - unresolved problems are displayed<br>**Any** - history of all events is displayed|
|*Host groups*|Filter by host group.|
|*Hosts*|Filter by host.|
|*Name*|Filter by problem name.|
|*Minimum severity*|Filter by minimum problem severity.|
|*Age (less than)*|Mark the checkbox to filter by problem age.|
|*Host inventory*|Filter by inventory type and value.|
|*Tags*|Specify tags to limit the number of problems 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.<br>There are several operators available for each condition:<br>**Exists** - include the specified tag names<br>**Equals** - include the specified tag names and values (case-sensitive)<br>**Contains** - include the specified tag names where the tag values contain the entered string (substring match, case-insensitive)<br>**Does not exist** - exclude the specified tag names<br>**Does not equal** - exclude the specified tag names and values (case-sensitive)<br>**Does not contain** - exclude the specified tag names where the tag values contain the entered string (substring match, case-insensitive)<br>There are two calculation types for conditions:<br>**And/Or** - all conditions must be met, conditions having the same tag name will be grouped by the Or condition<br>**Or** - enough if one condition is met|
|*Show unacknowledged only*|Mark the checkbox to only display problems which are unacknowledged.|
|*Show suppressed problems*|Mark the checkbox to display problems which would otherwise be suppressed (not shown) because of host maintenance.|

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#### Overview of data

In the next screenshot *Data overview* is selected. As a result, item
data of a local host is displayed.

![](../../../../../assets/en/manual/web_interface/overview_data.png){width="600"}

The color of problem items is based on the problem severity color, which
can be adjusted in the [problem
update](/manual/acknowledges#updating_problems) screen.

By default, only values that fall within the last 24 hours are
displayed. This limit has been introduced with the aim of improving
initial loading times for large pages of latest data. You can extend
this time period by changing the value of *Max history display period*
parameter in the
*[Administration→General](/manual/web_interface/frontend_sections/administration/general#gui)*
menu section.

Clicking on a piece of data offers links to some predefined graphs or
latest values.

![](../../../../../assets/en/manual/web_interface/overview_links.png)

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##### Using filter

You can use the filter to display only the data you are interested in.
For better search performance, data is searched with macros unresolved.

The filter is located above the table.

![](../../../../../assets/en/manual/web_interface/overview_data_filter.png){width="600"}

|Parameter|Description|
|---------|-----------|
|*Host groups*|Filter by host group.|
|*Hosts*|Filter by host.|
|*Tags*|Specify item tags to limit the number of items 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.<br>There are several operators available for each condition:<br>**Exists** - include the specified tag names<br>**Equals** - include the specified tag names and values (case-sensitive)<br>**Contains** - include the specified tag names where the tag values contain the entered string (substring match, case-insensitive)<br>**Does not exist** - exclude the specified tag names<br>**Does not equal** - exclude the specified tag names and values (case-sensitive)<br>**Does not contain** - exclude the specified tag names where the tag values contain the entered string (substring match, case-insensitive)<br>There are two calculation types for conditions:<br>**And/Or** - all conditions must be met, conditions having the same tag name will be grouped by the Or condition<br>**Or** - enough if one condition is met|
|*Show suppressed problems*|Mark the checkbox to display problems which would otherwise be suppressed (not shown) because of host maintenance.|

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