Hello I'm new to Zabbix server and I have a few questions .I have zabbix 4.4.1-1.el8 version its VM machine (Centos8) On Hyper-v 2016 cluster. Q.1) whats are properly settings of triggers I receive a lot of emails like "Problem name: Zabbix discoverer processes more than 75% busy Host Zabbix server" , "Problem name: High memory utilization ( >90% for 5m) Host: Zabbix server " VM machine on which Zabbix server is running has got 2 vCPU and 2024MB RAM. How much RAM server must have ? Q.2) I use dafault Windows zabbix with active agent templates which I use to monitor VM Windows Servers like Exchange 2010. This Machine has 4 vCPU and 12GB RAM. This server is not heavy loaded but Zabbix send me a lot of emails "CPU queue length is too high (over 3% for 5m) Host: FNPEX1" How can I decrease amount of emails ? Which template use to monitor Hyper-V VM CPU ? CPU Queue seems to make fake results ? Are there any differences between templates in monitoring the performance of virtual and physical servers??
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The supplied templates are starting points, if your environment is working acceptably, increase the trigger level or disable them. Discoverer process seems to run 100% when it schedules a scan and 0% when it doesn't. If yours is continually busy, you may need to increase the number of discoverers. If it's busy for 15 minutes, then idle for 45 (for hourly discoveries), I'd edit the trigger.
Same for memory usage, I'd care less about memory % used but watch swap use and rate, swapping in a VM (which could be swapping your ram) is probably not good. If your mysql server is on the same host, you will probably want more ram to scale to production. My zabbix server has 36G with a lot of that mysql huge page buffers.Comment
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