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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Take the following structure:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><u>A.service:<o:p></o:p></u></p><p class=MsoNormal>Requires=base.service<o:p></o:p></p><p class=MsoNormal>Type=fork<o:p></o:p></p><p class=MsoNormal>Restarts=no<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><u>B.service:<o:p></o:p></u></p><p class=MsoNormal>Requires=base.service<o:p></o:p></p><p class=MsoNormal>Type=fork<o:p></o:p></p><p class=MsoNormal>Restarts=no<o:p></o:p></p><p class=MsoNormal>After=A<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>C.service:<o:p></o:p></p><p class=MsoNormal>Requires=base.service<o:p></o:p></p><p class=MsoNormal>Type=fork<o:p></o:p></p><p class=MsoNormal>Restarts=no<o:p></o:p></p><p class=MsoNormal>After=B<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><u>Up.target:<o:p></o:p></u></p><p class=MsoNormal>Requires=A B C<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Normally, <i>systemctl start up.target</i> brings up base, A, B, C, in the correct order. Similarly, <i>systemctl stop base.service</i> brings down C B A, in correct order. All is well.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If A or B fails to start (return 1 from ExecStart), they assume <i>Active: failed </i>state, but the stack continues to start regardless. I expected that Requires= would mean that up.target would stop and start-up would be interrupted. How can I achieve that? Adding up.target::Requisite=A B C doesn’t change anything.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:1.0in'><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:1.0in;text-indent:-.25in;mso-list:l0 level2 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>a.<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>This is a simplified example. In reality I have tens of components that only know their immediate dependency, but not the whole chain. Adding explicit C::Requires=B would solve this for when B fails, but imagine there’s an F::After=E where F must not Require=E (i.e., F must not stop if E fails), then such F will start even if B failed to start. So I would have to add a F::Requires=B, and propagate that through the entire stack. And then do the same to A and C, etc. Doesn’t seem very scalable or flexible. <o:p></o:p></p><p class=MsoListParagraph><o:p> </o:p></p><p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'> </span></span><![endif]>If b fails, and then later I stop the base service, shutdown is out of order. C and A stop in parallel, or even C stops after A. It seems like breaking the chain anywhere in the stack breaks the dependency tree at least in that place. In other words, ordering C->B->A doesn’t mean translate into C->A if B fails before stopping is initiated. How can I fix that?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Alex<o:p></o:p></p></div></body></html>