RE: [WEB400] Apache web server directive interaction

["Haas, Matt" <Matt.Haas@xxxxxxxxxxx>]

Mike,

A thread is different than a job/process. Take a look at 
http://www.faqfarm.com/Q/What_is_the_difference_between_a_computer_process_and_thread.
 I'm sure there are better explanations but you should get the idea. 
Unfortunately, these setting are mostly specific to the port that IBM did for 
the iSeries and since the documentation seems to be typical IBM, the best way 
to find out how to alter these settings is probably going to be calling IBM. 
Personally, I don't use persistent CGI and all of these settings are at their 
defaults.

Matt

-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx]On
Behalf Of Mike Cunningham
Sent: Monday, March 14, 2005 12:48 PM
To: web400@xxxxxxxxxxxx
Subject: [WEB400] Apache web server directive interaction


I have been reading everything I can get my hands on about this subject
and still do not get the interaction between some Apache config settings
about threads. The ones in question are:
ThreadsPerChild  (not set in this specific server but the Global
setting is set for 300)
MaxCGIJobs (60)
CGIRecyclePersist (Disabled)
MaxPersistentCGI (100)
 
We run just about all cgi (net.data) on this server, and 80% of that is
persistent CGI. According to one thing I read if the MaxCGIJobs is less
than the ThreadsPerChild the server ignores the MaxCGIJobs setting and
uses the ThreadsPerChild instead. That implies that the MaxCGIJobs
setting can be set higher than the ThreadsPerChild setting which does
not make sense to me if each CGI job uses a thread and the
ThreadsPerChild limit prevents the CGI job from getting a thread.  I
also get confused between the use of the terms jobs and threads. Are
these terms equal in the web server world or does the term job refer to 
an iSeries traditional job which would use multiple threads.  I would
like to know what other people who are using Apache to serve net.data
CGI apps are using for these settings. 
 
Thanks
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