#1 The script is FIXED for MySQL 8. It works for both MySQL and MariaDB latest versions and should still work with older versions as well.
#2 The weekly partitioning is FIXED. Thanks @beinvisible
#3 Zabbix 6 removed the auditlog_details table. The script is compatible with this version now, make sure to uncomment the fix for older Zabbix versions.
#4 For RHEL9 based systems use the CRB repository (Rocky Linux 9 specific) to get Perl-DataTime. dnf config-manager --set-enabled crb
Make sure to uncomment the correct lines (see blog post), the default is setup for MySQL 5.6 or MariaDB.
Also, see common issues at the bottom of the blog post.
Disclaimer: This script isn't made by us, the original author is https://github.com/dotneft and the script was initially (slightly) modified by Rihards Olups. We've added it to Github so we can maintain it and provide easy access to the entire Zabbix community.
Welcome to the Opensource ICT Solutions GitHub, where you'll find all kinds of useful Zabbix resources. This script is a script written in Perl to partition the Zabbix database tables in time based chunks. We can use this script to replace the Zabbix housekeeper process which tends to get too slow once you hit a certain database size.
With the use of MySQL partitioing using fixed History and Trend storage periods for all items we can mitigate this issue and grow our Zabbix database even further.
Make sure to partition the database first. If you do not know how, check out this blog post: https://blog.zabbix.com/partitioning-a-zabbix-mysql-database/13531/
Or check out our Zabbix book for a detailed description: https://www.amazon.com/Zabbix-Infrastructure-Monitoring-Cookbook-maintaining-dp-1801078327/dp/1801078327
Place the script in:
/usr/share/zabbix/
Then make it executable with:
chmod +x /usr/share/zabbix/mysql_zbx_part.pl
Now add a cronjob with:
crontab -e
Add the following line:
55 22 * * * /usr/share/zabbix/mysql_zbx_part.pl >/dev/null 2>&1
We also need to install some Perl dependencies with:
yum install perl-DateTime perl-Sys-Syslog perl-DBI perl-DBD-mysql
If perl-DateTime isn't available on your RHEL based installation make sure to install the powertools repo with:
yum config-manager --set-enabled powertools
On RHEL 9 based:
dnf config-manager --enable crb
or for genuine-RedHat:
subscription-manager repos --enable codeready-builder-for-rhel-8-x86_64-rpms
Or Oracle Linux
dnf config-manager --set-enabled ol8_codeready_builder
On a Debian based systems (like Ubuntu) run:
apt-get install libdatetime-perl liblogger-syslog-perl libdbd-mysql-perl
MAKE SURE TO UNCOMMENT THE CORRECT LINES FOR THE VERSION YOU NEED. Check the blog post for more information.
# MySQL 5.5
# MySQL 5.6 + MariaDB
# MySQL 8.x (NOT MariaDB!)
Uncomment the following line for Zabbix 5.4 and OLDER:
# $dbh->do("DELETE FROM auditlog_details WHERE NOT EXISTS (SELECT NULL FROM auditlog WHERE auditlog.auditid = auditlog_details.auditid)");
That's it! You are now done and you have setup MySQL partitioning. We could execute the script manually with:
perl /usr/share/zabbix/mysql_zbx_part.pl
Then we can check and see if it worked with:
journalctl -t mysql_zbx_part
NOTE: See version 2.1 for older (before 20-09-2021) partitioned databases. Otherwise use 3.0+ upwards (recommended to use current).
By default history tables are partitioned by day and trends are partitioned by month. It is also possible to partition both types of tables by week.
To do so change the period value to week under my $tables =. Also make sure to use a different naming convention for your partition names (2021_w36) and while partitioning make sure to use the correct UNIXTIMESTAMP.
The weekly partitioning setup IS NOT described in the Zabbix blog.
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