You are viewing documentation for the development version, it may be incomplete.
Join our translation project and help translate Zabbix documentation into your native language.

11 Execute now

Overview

Checking for a new item value in Zabbix is a cyclic process that is based on configured update intervals. While for many items the update intervals are quite short, there are others (including low-level discovery rules) for which the update intervals are quite long, so in real-life situations there may be a need to check for a new value quicker - to pick up changes in discoverable resources, for example. To accommodate such a necessity, it is possible to reschedule a passive check and retrieve a new value immediately.

This functionality is supported for passive checks only. The following item types are supported:

  • Zabbix agent (passive)
  • SNMPv1/v2/v3 agent
  • IPMI agent
  • Simple check
  • Zabbix internal
  • External check
  • Database monitor
  • JMX agent
  • SSH agent
  • Telnet
  • Calculated
  • HTTP agent
  • Dependent item
  • Script

The check must be present in the configuration cache in order to get executed; for more information see CacheUpdateFrequency. Before executing the check, the configuration cache is not updated, thus very recent changes to item/discovery rule configuration will not be picked up. Therefore, it is also not possible to check for a new value for an item/rule that is being created or has been created just now; use the Test option while configuring an item for that.

Configuration

To execute a passive check immediately:

  • click on Execute now for selected items in the list of latest data:

Several items can be selected and "executed now" at once.

In latest data this option is available only for hosts with read-write access. Accessing this option for hosts with read-only permissions depends on the user role option called Invoke "Execute now" on read-only hosts.

  • click on Execute now in an existing item (or discovery rule) configuration form:

execute_now.png

  • click on Execute now for selected items/rules in the list of items/discovery rules:

Several items/rules can be selected and "executed now" at once.