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doc:appunti:linux:sa:systemd_tmpfiles_problem [2024/02/26 09:43] – [Analyzing Systemd] niccolodoc:appunti:linux:sa:systemd_tmpfiles_problem [2024/02/26 09:50] (current) – [Analyzing Systemd] niccolo
Line 31: Line 31:
 systemd-analyze verify default.target systemd-analyze verify default.target
 </code> </code>
 +
 +The command highlights an **ordering cycle** problem, which causes the deleting of a service:
 +
 +<code>
 +sockets.target: Found ordering cycle on avahi-daemon.socket/start
 +sockets.target: Found dependency on sysinit.target/start
 +...
 +sockets.target: Job avahi-daemon.socket/start deleted to break ordering
 +                cycle starting with sockets.target/start
 +...
 +</code>
 +
 +Notice that the ordering (and the deleting choice) is not deterministic: on each execution the path of ordering (and deleting) may change.
  
 The problem was introduced by this custom Postfix/Courier setup:  The problem was introduced by this custom Postfix/Courier setup: 
 **[[postfix_courier_authdaemon_debian_12]]**. In fact disabling the Systemd ''var-spool-postfix-var-run-courier-authdaemon.mount'' unit, solves the issues listed by systemd-analyze. **[[postfix_courier_authdaemon_debian_12]]**. In fact disabling the Systemd ''var-spool-postfix-var-run-courier-authdaemon.mount'' unit, solves the issues listed by systemd-analyze.
  
-In my specific case the problem was solved changing the dependencies of the **[[https://www.freedesktop.org/software/systemd/man/latest/systemd.unit.html|mount unit]]** created to have the Courier socket inside the Postfix chroot. Instead of the strong ''Requires='' and ''After='' dependencies upon the courier-authdaemon.service, declaring the weaker ''Wants='' dependency sovled to cycle problem.+In this specific case the problem was completely solved changing the dependencies of the **[[https://www.freedesktop.org/software/systemd/man/latest/systemd.unit.html|mount unit]]** created to have the Courier socket inside the Postfix chroot. Instead of the strong ''Requires='' and ''After='' dependencies upon the courier-authdaemon.service, declaring the weaker ''Wants='' dependency sovled to cycle problem.
  
doc/appunti/linux/sa/systemd_tmpfiles_problem.1708937025.txt.gz · Last modified: 2024/02/26 09:43 by niccolo