I wonder which of the logs takes precedence over the other.

Looking at rsyslog defined here, it defines daily rotation and keeping them for 30 days.

vim /etc/logrotate.d/rsyslog

        rotate 30

Then we have the main config, that rotates weekly and keeps 4 weeks at a time.

vim /etc/logrotate.conf

# rotate log files weekly

# use the syslog group by default, since this is the owning group
# of /var/log/syslog.
su root syslog

# keep 4 weeks worth of backlogs
rotate 4

# create new (empty) log files after rotating old ones

# uncomment this if you want your log files compressed

# packages drop log rotation information into this directory
include /etc/logrotate.d

Which one overrides the other one?


The rules are simply evaluated as they are read, and the last setting encountered overrides previous settings.

As the /etc/logrotate.conf file has the line include /etc/logrotate.d as last, the files in that directory are also processed after the main config file. Hence the /etc/logrotate.d/rsyslog file will override the settings in /etc/logrotate.conf.

The point is that you can set default values in the main config file, and override those if necessary for individual log files.

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