Oracle Linux – How to Change data collection interval for sysstat service

Applies To:

Linux OS – Version Oracle Linux 8.0 to Oracle Linux 9.0 [Release OL8 to OL9]

Linux x86_64 on Oracle Public Cloud

Goal:

This document describes how to change default interval of data collection for sysstat service for Oracle Linux version 8 onwards.

Solution:

By default SAR will collect data every 10 minutes. In order to collect data every minute follow below steps.

$ sudo systemctl cat sysstat-collect.timer
# /usr/lib/systemd/system/sysstat-collect.timer
# /usr/lib/systemd/system/sysstat-collect.timer
# (C) 2014 Tomasz Torcz <tomek@pipebreaker.pl>
#
# sysstat-11.7.3 systemd unit file:
#        Activates activity collector every 10 minutes


[Unit]
Description=Run system activity accounting tool every 10 minutes


[Timer]
OnCalendar=*:00/10


[Install]
WantedBy=sysstat.service
$
$ sudo systemctl edit sysstat-collect.timer
[Unit]
Description=Run system activity accounting tool every 1 minutes


[Timer]
OnCalendar=*:00/1


[Install]
WantedBy=sysstat.service

$
$ sudo systemctl daemon-reload
$
$ sudo systemctl restart sysstat.service
$
$ sudo systemctl status sysstat-collect.timer
● sysstat-collect.timer - Run system activity accounting tool every 1 minutes
   Loaded: loaded (/usr/lib/systemd/system/sysstat-collect.timer; enabled; vendor preset: disabled)
  Drop-In: /etc/systemd/system/sysstat-collect.timer.d
           └─override.conf
   Active: active (waiting) since Thu 2023-04-13 19:39:13 AEST; 27s ago
  Trigger: Thu 2023-04-13 19:40:00 AEST; 19s left


Apr 13 19:39:13 vm01 systemd[1]: Started