Issue with Zabbix proxy service turning off and missing data for items

[Maissa DRIDI]

Hello,

I have encountered a problem with my Zabbix setup, and I would appreciate some assistance in resolving it. Here's the issue I am facing:

I have a Zabbix proxy server monitoring 182 hosts. Initially, everything was working fine, but recently I started experiencing the following problem:

The Zabbix server repeatedly shows the error message: "Zabbix server: More than 100 items having missing data for more than 10 minutes."
As a result of this error, the Zabbix proxy service turns off automatically and does not restart on its own.
To get the proxy service running again, I have to manually restart the entire proxy machine.

This issue is causing interruptions in monitoring and affecting the data collection process. I would like to understand the root cause of this problem and find a resolution.
Here are some additional details about my setup:

Number of monitored hosts: 182
Zabbix server version: 6.4
Zabbix proxy version: 6.4
Proxy machine specifications:

OS : Ubuntu 22.04
Disque : 80 GB
RAM : 4 GB
CPU : 2 vCPU
ProxyMode: active

I have already checked the following:

Proxy configuration: The proxy configuration seems to be correct and matches the settings on the Zabbix server.
Network connectivity: There are no network issues, and the proxy can reach the Zabbix server without any problem.

[cyber]

Maybe it is the other way around... first your proxy dies in some reason and then you will get notifications, that there is a delay in data ?
Anything in proxy logs ? Or in server logs?

[Maissa DRIDI]

Yes first the proxy dies, and then I get notifications.
No there is nothing in the proxy logs or the server logs.