[rsyslog-notify] Forum Thread: Re: Wrong PID Filename on CentOS 7.2 Causes Logrotate Issue - (Mode 'reply')

[noreply at adiscon.com]

User: dlang 
Forumlink: http://kb.monitorware.com/viewtopic.php?p=26725#p26725

Message: 
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rsyslog will keep writing to a file, even after it's renamed, until it
receives and processes the HUP signal

in your case, the logrotate config is looking for syslogd.pid, but the file
is rsyslogd.pid

I tend to use pkill or killall instead, both of which let me just specify
the name instead of having to get the pid.