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Posted to bugs@httpd.apache.org by bu...@apache.org on 2009/09/03 09:43:01 UTC
DO NOT REPLY [Bug 47778] New: wrong exit value on graceful restart
https://issues.apache.org/bugzilla/show_bug.cgi?id=47778
Summary: wrong exit value on graceful restart
Product: Apache httpd-2
Version: 2.2.13
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Core
AssignedTo: bugs@httpd.apache.org
ReportedBy: harald.dunkel@aixigo.de
--- Comment #0 from harald.dunkel@aixigo.de 2009-09-03 00:42:56 PDT ---
I am running httpd on a generated httpd.conf file. If the configuration is
changed while httpd is running, and then loaded using
if httpd -f /my/httpd.conf -t; then
httpd -f /my/httpd.conf -k graceful || exit_with_error
fi
then the exit value of the graceful restart is 0, even though error_log says
[Thu Sep 03 09:12:26 2009] [warn] Init: Session Cache is not configured [hint:
SSLSessionCache]
[Thu Sep 03 09:12:26 2009] [warn] pid file /tomcat/httpd/logs/httpd.pid
overwritten -- Unclean shutdown of previous Apache run?
[Thu Sep 03 09:12:26 2009] [notice] Apache/2.2.13 (Unix) mod_ssl/2.2.13
OpenSSL/0.9.8k configured -- resuming normal operations
[Thu Sep 03 09:12:43 2009] [notice] Graceful restart requested, doing restart
(98)Address already in use: make_sock: could not bind to address xx.xx.xx.xx:80
no listening sockets available, shutting down
Unable to open logs
The suggested workaround to check the semantics ("start httpd as non-root")
doesn't work in scripts, because this _always_ fails either due to bind, or due
to the attempted access to reserved port 80/tcp, or it succeeds and keeps an
unwanted httpd running with the wrong uid.
I don't expect any miracles, but the exit value of "httpd -k graceful" _should_
show whether an httpd with the new configuration is running. Reliability is
highly important for us. Silently dying Apaches is a _huge_ problem in our
environment.
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DO NOT REPLY [Bug 47778] wrong exit value on graceful restart
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47778
harald.dunkel@aixigo.de changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|WONTFIX |
--- Comment #2 from harald.dunkel@aixigo.de 2009-09-03 07:51:54 PDT ---
I Understand, but the bug is that this procedure is not reliable IRL. Running
an httpd I don't want to know whether the signaling mechanism worked, but
whether Apache is still alive.
I thought you would be interested in improving Apache? Can't you imagine that
the restarting httpd and the running httpd perform some kind of IPC other than
just a unidirectional signal?
Please reconsider.
Many thanx
Harri
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DO NOT REPLY [Bug 47778] wrong exit value on graceful restart
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47778
Dan Poirier <po...@pobox.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|blocker |enhancement
--- Comment #4 from Dan Poirier <po...@pobox.com> 2009-09-06 10:44:58 PDT ---
Looks like this was meant to be enhancement, not blocker.
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DO NOT REPLY [Bug 47778] wrong exit value on graceful restart
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47778
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |blocker
--- Comment #3 from Eric Covener <co...@gmail.com> 2009-09-03 08:04:48 PDT ---
Marking as enhancement as the exit code is reasonable, patches welcome.
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DO NOT REPLY [Bug 47778] wrong exit value on graceful restart
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47778
Eric Covener <co...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
--- Comment #1 from Eric Covener <co...@gmail.com> 2009-09-03 06:17:49 PDT ---
The httpd that's running at this point, to send the graceful restart signal,
can't predict/inspect anything about the restarting httpd.
A 0 exit code means the restart signal was sent, and checking/polling for the
status of your httpd is beyond the scope of -k graceful.
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