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Posted to dev@httpd.apache.org by Stas Bekman <st...@stason.org> on 2004/12/02 19:41:07 UTC
kill -HUP vs. httpd -k graceful
Is there a difference between kill -HUP and httpd -k graceful? One user
has reported problems with using kill -HUP
[Fri Nov 19 00:00:05 2004] [warn] child process 12783 still did not
exit, sending a SIGTERM
[Fri Nov 19 00:00:05 2004] [notice] SIGHUP received. Attempting to
restart
panic: pthread_key_create
and dumps core...
whereas httpd -k graceful doesn't have this problem.
Unfortunately I can't tell you which MPM he was using, since he didn't
bother to tell.
--
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
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Re: kill -HUP vs. httpd -k graceful
Posted by Stas Bekman <st...@stason.org>.
Jeff Trawick wrote:
> On Thu, 02 Dec 2004 13:41:07 -0500, Stas Bekman <st...@stason.org> wrote:
>
>>Is there a difference between kill -HUP and httpd -k graceful? One user
>>has reported problems with using kill -HUP
>
>
> graceful uses signal USR1; ungraceful restart uses HUP;
Thanks Jeff.
> not expected that HUP would cause a crash
It's quite expected if it's ungraceful. I've reported this problem long
long time ago. If something is run for longer than the shutdown is willing
to wait after SIGKILL was sent (e.g. pool cleanups), SIGTERM is sent
and then crashes are normal. I can easily reproduce that at will.
Please see:
http://issues.apache.org/bugzilla/show_bug.cgi?id=23238
--
__________________________________________________________________
Stas Bekman JAm_pH ------> Just Another mod_perl Hacker
http://stason.org/ mod_perl Guide ---> http://perl.apache.org
mailto:stas@stason.org http://use.perl.org http://apacheweek.com
http://modperlbook.org http://apache.org http://ticketmaster.com
Re: kill -HUP vs. httpd -k graceful
Posted by Jeff Trawick <tr...@gmail.com>.
On Thu, 02 Dec 2004 13:41:07 -0500, Stas Bekman <st...@stason.org> wrote:
> Is there a difference between kill -HUP and httpd -k graceful? One user
> has reported problems with using kill -HUP
graceful uses signal USR1; ungraceful restart uses HUP; not expected
that HUP would cause a crash