I think I got the performance issue on the poller and rrdtool on CentOS 8.
I tried to follow this [guide]((https://www.techsupportpk.com/2019/12/how-to-install-and-configure-librenms-centos-rhel8.html) to install LibreNMS on CentOS 8, then I use snmp-scan.py to discover all of network devices in my environments.
I notice the information was not display on the page completely, and I also execute “./validate.php”
to check is there have any error message.
I also check mail to see the log for cron job, but I can not install this “python-mysqldb” module on CentOS 8.
Does anyone faced same issues before?