If you have an issue that your logs are not working on the centos 7 then check what rsyslog version you have.
Know to have issues
rsyslog-8.24.0-34.el7.x86_64
How to check
rpm -qa|grep sysl rsyslog-8.24.0-34.el7.x86_64
service rsyslog status
Redirecting to /bin/systemctl status rsyslog.service
● rsyslog.service - System Logging Service
Loaded: loaded (/usr/lib/systemd/system/rsyslog.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2019-09-02 17:20:12 EEST; 7h ago
Docs: man:rsyslogd(8)
http://www.rsyslog.com/doc/
Main PID: 4619 (rsyslogd)
CGroup: /system.slice/rsyslog.service
└─4619 /usr/sbin/rsyslogd -n
Sep 02 12:25:44 my.server.com rsyslogd[20369]: imjournal: journal reloaded... [v8.24.0-34.el7 try http://www.rsyslog.com/e/0 ]
Sep 02 16:16:54 my.server.com rsyslogd[20369]: sd_journal_get_cursor() failed: 'Cannot assign requested address' [v8.24.0-34.el7]
Sep 02 16:17:19 my.server.com rsyslogd[20369]: imjournal: journal reloaded... [v8.24.0-34.el7 try http://www.rsyslog.com/e/0 ]
Sep 02 16:17:19 my.server.com rsyslogd[20369]: sd_journal_get_cursor() failed: 'Cannot assign requested address' [v8.24.0-34.el7]
Sep 02 16:17:19 my.server.com rsyslogd[20369]: imjournal: journal reloaded... [v8.24.0-34.el7 try http://www.rsyslog.com/e/0 ]
Sep 02 16:37:16 my.server.com rsyslogd[20369]: [origin software="rsyslogd" swVersion="8.24.0-34.el7" x-pid="20369" x-info="http://www.rsyslog.com"] exiting on signal 15.
Solution
remove rsyslog and install syslog-ng
yum remove rsyslog yum install syslog-ng