/etc/cron.d/pcp-pmlogger is in pcp 3.8.12ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | #
# Performance Co-Pilot crontab entries for a monitored site
# with one or more pmlogger instances running
#
# daily processing of archive logs
10 0 * * * pcp /usr/lib/pcp/bin/pmlogger_daily
# every 30 minutes, check pmlogger instances are running
25,55 * * * * pcp /usr/lib/pcp/bin/pmlogger_check -C
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