Large file workaround

[zabbixuserfk]

Hi,

I want to retreive a large json file in Zabbix 5.0 through this basic Zabbix agent item with key system.run[cat /tmp/mc_show_ap_client_trail-info] and Type of information : Text, but I get the error Not supported by Zabbix Agent
I believe this is due to the size of the file - which is 3.79 Mo (3797259) - since the documentation says that the text data limit is 65536 characters.

Text data limits


Text data limits depend on the database backend. Before storing text values in the database they get truncated to match the database value type limit:

	Character	Log	Text
MySQL	255 characters	65536 bytes	65536 bytes
PostgreSQL	255 characters	65536 characters	65536 characters
Oracle	255 characters	65536 characters	65536 characters

Is there any workaround to read the whole content of such files for each interval please ?

[cyber]

system.run is by default disabled ... this also causes "not supported" items...
and up to 512kB of data can be returned ...

system.run[command,<mode>]
Run specified command on the host.	Text result of the command 1 - with mode as nowait (regardless of command result)	command - command for execution mode - possible values: wait - wait end of execution (default), nowait - do not wait	See supported platforms. Up to 512KB of data can be returned, including trailing whitespace that is truncated. To be processed correctly, the output of the command must be text. Example: => system.run[ls -l /] → detailed file list of root directory. Note: system.run items are disabled by default. Learn how to enable them. The return value of the item is standard output together with standard error produced by command. The exit code is not checked. Empty result is allowed starting with Zabbix 2.4.0. See also: Command execution.

You can obtain bigger file over http items, but you can not save more than item type allows, thus you should split needed info into dependent items, for example. And preprocess all the acquired data, if needed...

[zabbixuserfk]

system.run items are enabled indeed in my case.
I know it's possible to get large json data through http items but I've had to write a script to make the api calls and it takes more than the agent timeout to answer... That's why I've redirected the result in a file that I hoped I could read after that...