Unfortunately that log doesn’t give me anything I could work with. Just started the npcd again.
~/var/nagios/nagios.log
[1588842373] livestatus: Timeperiod cache not updated, there are no timeperiods (yet)
[1588842425] SERVICE ALERT: localhost;OMD office status;OK;HARD;1;OK - running
[1588842425] SERVICE NOTIFICATION: check-mk-notify;localhost;OMD office status;OK;check-mk-notify;OK - running
[1588842426] EXTERNAL COMMAND: _LOG;SERVICE NOTIFICATION: cmkadmin;localhost;OMD office status;OK;asciimail;OK - running
[1588842426] SERVICE NOTIFICATION: cmkadmin;localhost;OMD office status;OK;asciimail;OK - running
[1588842434] livestatus: Timeperiod cache not updated, there are no timeperiods (yet)
[1588842494] livestatus: Timeperiod cache not updated, there are no timeperiods (yet)
livestatus.log just is full of
2020-05-03 17:52:12 [main] socket thread has terminated
But that goes for a year already
OMD[office]:~$ zcat var/nagios/livestatus.log.7.gz
2019-05-09 14:26:51 [main] socket thread has terminated
2019-06-03 22:31:05 [main] socket thread has terminated
Then there are these files
-rw-r--r-- 1 office office 112800 May 3 18:34 objects.cache
-rw-r--r-- 1 office office 112800 May 3 18:34 objects.precache
-rw-r--r-- 1 office office 158683 May 7 10:34 retention.dat
That contain data about all services.
grepping for npcdmod repeats just the same log entries for years (the same exists from 2018 and 2019)
OMD[office]:~$ grep -r npcdmod var/nagios/*|grep 2020
...
var/nagios/archive/nagios-05-04-2020-00.log:[1588523669] Event broker module '/omd/sites/office/lib/npcdmod.o' deinitialized successfully.
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] npcdmod: Copyright (c) 2008-2009 Hendrik Baecker () - http://www.pnp4nagios.org
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] npcdmod: /omd/sites/office/etc/pnp4nagios/npcd.cfg initialized
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] npcdmod: spool_dir = '/omd/sites/office/var/pnp4nagios/spool/'.
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] npcdmod: perfdata file '/omd/sites/office/var/pnp4nagios/perfdata.dump'.
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] npcdmod: Ready to run to have some fun!
var/nagios/archive/nagios-05-04-2020-00.log:[1588523671] Event broker module '/omd/sites/office/lib/npcdmod.o' initialized successfully.
var/nagios/archive/nagios-04-30-2020-00.log:[1588162443] npcdmod: If you don't like me, I will go out! Bye.
var/nagios/archive/nagios-04-30-2020-00.log:[1588162443] Event broker module '/omd/sites/office/lib/npcdmod.o' deinitialized successfully.
var/nagios/archive/nagios-04-30-2020-00.log:[1588162576] npcdmod: Copyright (c) 2008-2009 Hendrik Baecker () - http://www.pnp4nagios.org
var/nagios/archive/nagios-04-30-2020-00.log:[1588162576] npcdmod: /omd/sites/office/etc/pnp4nagios/npcd.cfg initialized
var/nagios/archive/nagios-04-30-2020-00.log:[1588162576] npcdmod: spool_dir = '/omd/sites/office/var/pnp4nagios/spool/'.
var/nagios/archive/nagios-04-30-2020-00.log:[1588162576] npcdmod: perfdata file '/omd/sites/office/var/pnp4nagios/perfdata.dump'.
var/nagios/archive/nagios-04-30-2020-00.log:[1588162576] npcdmod: Ready to run to have some fun!
...