CentOS 7.x Journald logging on CentOS 7 / RHEL 7

eva2000 · Oct 19, 2015

Nice article on CentOS 7 and RHEL7 journald Logging With Journald In RHEL7/CentOS7 | Unixmen

Centos/RHEL 7 comes with services which saves logging information. Some services write their own logs directly to their log information files, e.g. apache maintain their own logs. Some of the service maintain their logs through systemctl. Systemctl is a services that take care of starting, stopping or monitoring the status of a process. systemctl further communicates to Journald which keep track on log information. “journalctl” is used to grep log inforamtion from journald.

Rsyslog is the classical logging method. You may ask either we should use journalctl or rsyslog to maintain our logging information. We can integrate both rsyslog ans journald. The rsyslog messages will be sent to journald or vice versa. The facility is not enabled by default.
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jeffwidman · Oct 28, 2015

Good read eva, hadn't heard of journald.

A little more googling turned this up: Rainer's Blog: rsyslog vs. systemd journal?

Like many, I'm a bit hesitant of how systemd seems to be trying to take over all the things... rather have clear separation of concerns and focus on do-one-thing-and-do-it-well, especially because this is open-source which is like herding cats, not the dictatorship of Apple.

eva2000 · Oct 29, 2015

well on Centmin Mod + CentOS 7, both systemd journald and rsyslog are in play together so all it is, is a second set of logs heh

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