Zabbix Documentation 2.2

3.04.04.2 (current)In development:4.4 (devel)Unsupported:1.82.02.22.43.23.4

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manual:config:items:userparameters

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manual:config:items:userparameters [2017/10/19 08:07]
natalja.cernohajeva Added important note from 3.0 version (it's the same for 2.2 version) about Positional references
manual:config:items:userparameters [2018/01/25 13:00]
martins-v removing reference to item preprocessing
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 Then, when [[item|configuring an item]], enter the key to reference the command from the user parameter you want executed. Then, when [[item|configuring an item]], enter the key to reference the command from the user parameter you want executed.
  
-User parameters are commands executed by Zabbix agent. Up to 512KB of data can be returned. The return value of the command is standard output; standard error is discarded. **/bin/sh** is used as a command line interpreter under UNIX operating systems. User parameters obey the agent check timeout; if timeout is reached the forked user parameter process is terminated.+User parameters are commands executed by Zabbix agent. Up to 512KB of data can be returned. ​Note, however, that the text value that can be eventually stored in database is limited to 64KB on MySQL (see info on other databases in the [[:​manual/​config/​notifications/​action/​operation/​remote_command#​overview|table]]). 
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 +The return value of the command is standard output; standard error is discarded. **/bin/sh** is used as a command line interpreter under UNIX operating systems. User parameters obey the agent check timeout; if timeout is reached the forked user parameter process is terminated.
  
 See also: See also: