Public bug reported: The PCP 4.0.0 packages for bionic do not automatically start PCP daemon processes.
>From my research so far, I believe the reason for this is that PCP 4.0.0 ships both sysvinit scripts and systemd unit files (which simply call the sysvinit scripts). The services are enabled in the postinstall via "update-rc.d <daemon> defaults". It appears that the behavior for "update-rc.d ... defaults" is different for generated units (sysvinit only, where they do get enabled), versus when systemd units are available (where they are not enabled and not generated). After installing PCP packages, the systemd units have status (using pmcd.service for this example, but it applies to app PCP daemons): Loaded: loaded (/lib/systemd/system/pmcd.service; disabled; vendor preset: enabled) Running "update-rc.d pmcd defaults" results in no change to the status (confirming that "defaults" does not enable the service): Loaded: loaded (/lib/systemd/system/pmcd.service; disabled; vendor preset: enabled) After running "update-rc.d pmcd enabled", the service is correctly enabled: Loaded: loaded (/lib/systemd/system/pmcd.service; enabled; vendor preset: enabled) The best answer is probably to use deb-systemd-helper, or other appropriate systemd commands in the postinst when installing on a system with systemd, instead of using the old update-rc.d commands which appear to behave differently and in violation of the Debian policy manual, which states: "The default behaviour is to enable autostarting your package’s daemon."[1] [1] https://www.debian.org/doc/debian-policy/#managing-the-links ** Affects: pcp Importance: Unknown Status: Unknown ** Affects: pcp (Ubuntu) Importance: Undecided Status: New ** Tags: bionic ** Bug watch added: github.com/performancecopilot/pcp/issues #454 https://github.com/performancecopilot/pcp/issues/454 ** Also affects: pcp via https://github.com/performancecopilot/pcp/issues/454 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1755615 Title: PCP daemons do not start automatically for bionic To manage notifications about this bug go to: https://bugs.launchpad.net/pcp/+bug/1755615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
