rsyslogd: WARNING: rsyslogd is running in compatibility mode.

rsyslogd: WARNING: rsyslogd is running in compatibility mode. Automatically generated config directives may interfer with your rsyslog.conf settings. We suggest upgrading your config and adding -c3 as the first rsyslogd option.

解决办法

1、

vi /etc/sysconfig/rsyslog

把原来的"m 0"改为"-c3"

2、

vi /etc/rsyslog.conf

在后面添加下面两行

$ModLoad imuxsock.so    # provides support for local system logging (e.g. via logger command)

$ModLoad imklog.so      # provides kernel logging support (previously done by rklogd)

3、重启rsyslog

参考资料：https://stomp.colorado.edu/blog/blog/2010/05/20/on-rsyslog-and-warnings/