So I've been using Zabbix in my company's environment for about 2 years now, gradually increasing the amount of data it's collecting over time. The server is currently running Zabbix 5.2.5, on an Ubuntu Virtual Machine, using MySql as a database.
I've run into an issue affecting two hosts in particular, where they constantly report the issue "Zabbix agent on hostname is unreachable for 5 minutes", going on and off.
The first of these is a RDS Session Host running Windows Server 2016. It is one of two session hosts, and is basically identical to the other session host, monitored the same way. It's monitored by zabbix agent version 4.4.4.2400 running in passive mode, and is utilizing additional monitoring for Terminal Services, utilizing this template and scripts: https://share.zabbix.com/operating-s...erminal-server.
The second is a Veeam Backup and Replication Server running Windows Server 2019. It is monitored by zabbix agent version 5.0.2.2400 running in passive mode and is utilizing monitoring for Veeam, utilizing this template and scripts: https://share.zabbix.com/cat-app/bac...y-jobs-trapper.
So the one thing I've noticed with these two servers, is that both are running extra monitoring compared to most of the other windows servers, which are just utilizing the agent itself with no addons. In the case of the Veeam Server, it's collecting a lot of data constantly (statistics on all backup jobs). This lead me to wonder if the zabbix agent on these hosts isn't able to keep up with the data coming in, and maybe I need to assign more resources or something to the agent itself?
Any other ideas to fix this would be appreciated, and if any more information is required I can provide it.
I've run into an issue affecting two hosts in particular, where they constantly report the issue "Zabbix agent on hostname is unreachable for 5 minutes", going on and off.
The first of these is a RDS Session Host running Windows Server 2016. It is one of two session hosts, and is basically identical to the other session host, monitored the same way. It's monitored by zabbix agent version 4.4.4.2400 running in passive mode, and is utilizing additional monitoring for Terminal Services, utilizing this template and scripts: https://share.zabbix.com/operating-s...erminal-server.
The second is a Veeam Backup and Replication Server running Windows Server 2019. It is monitored by zabbix agent version 5.0.2.2400 running in passive mode and is utilizing monitoring for Veeam, utilizing this template and scripts: https://share.zabbix.com/cat-app/bac...y-jobs-trapper.
So the one thing I've noticed with these two servers, is that both are running extra monitoring compared to most of the other windows servers, which are just utilizing the agent itself with no addons. In the case of the Veeam Server, it's collecting a lot of data constantly (statistics on all backup jobs). This lead me to wonder if the zabbix agent on these hosts isn't able to keep up with the data coming in, and maybe I need to assign more resources or something to the agent itself?
Any other ideas to fix this would be appreciated, and if any more information is required I can provide it.