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Bug 1135122

Summary: httpd.service unit file weirdness
Product: [Fedora] Fedora Reporter: Lennart Poettering <lpoetter>
Component: httpdAssignee: Jan Kaluža <jkaluza>
Status: CLOSED EOL QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 20CC: jkaluza, jorton, pahan
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Hardware: Unspecified   
OS: Unspecified   
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2015-06-29 21:29:52 EDT Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Lennart Poettering 2014-08-28 16:53:50 EDT
I have been looking into the httpd.service unit file, and found this:

 ExecStop=/bin/kill -WINCH ${MAINPID}
 # We want systemd to give httpd some time to finish gracefully, but still want
 # it to kill httpd after TimeoutStopSec if something went wrong during the
 # graceful stop. Normally, Systemd sends SIGTERM signal right after the 
 # ExecStop, which would kill httpd. We are sending useless SIGCONT here to give
 # httpd time to finish.

I am pretty sure that (at least in more recent systemd versions) you want to use:


This will send SIGWINCH to the main pid when the unit is supposed to go down, and then after a timeout send SIGKILL to everything that is remaining in the entire cgroup.

(Note that KillMode=mixed is the key here, since it does the first kill only on the main process, and the second kill on the entire cgroup. It is a relatively new addition though, so please be careful before backporting such a unit file change too eagerly...)
Comment 1 Jan Kaluža 2014-08-29 01:50:26 EDT
Thanks for the info, we have used this originally because the KillMode=mixes has not been implemented yet. I will update httpd.service.
Comment 2 Jan Kaluža 2014-09-01 04:04:45 EDT
I've fixed it in rawhide, Systemd in F20 does not include KillMode=mixed yet. I will backport to F21 soon.
Comment 3 Fedora End Of Life 2015-05-29 08:45:21 EDT
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Comment 4 Fedora End Of Life 2015-06-29 21:29:52 EDT
Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is
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