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From Stas Bekman <>
Subject Re: kill -HUP vs. httpd -k graceful
Date Thu, 02 Dec 2004 22:10:09 GMT
Jeff Trawick wrote:
> On Thu, 02 Dec 2004 13:41:07 -0500, Stas Bekman <> 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:

Stas Bekman            JAm_pH ------> Just Another mod_perl Hacker     mod_perl Guide --->

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