Category: zabbix
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MariaDB tuning for Zabbix
I have a Zabbix server with 40GB of memory that requires around 700 new values per second. The server runs MariaDB 11.4 in a standard LAMP-stack and I use MySQLTuner-perl to tune the database. Here is how. Enable the following configuration in /etc/my.cnf.d/mariadb_server.cnf Restart MariaDB: Let the server run for some time and then execute…
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MariaDB 10.5 to 11.4 upgrade
I recently upgraded MariaDB from version 10.5 to 11.4 for a couple of RHEL9 servers. Here are the steps I used: Add the MariaDB repo containing version 11.4 and exclude MariaDB 10.5 from the system default AppStream repository. Uninstall MariaDB 10.5 and install version 11.4: Create socket: Start and enable MariaDB: Run the upgrade script:…
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Faster SNMP monitoring in Zabbix 7.0
I recently upgraded Zabbix from version 6.0 to 7.0, and one of the major improvements is that you can use SNMP GETBULK when performing low-level discovery. In this post, we will discover all the object identifiers (OIDs) representing the interface names (which start at OID 1.3.6.1.2.1.31.1.1.1.1) for a Cisco Nexus switch with IP 192.0.2.1. The…