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From "Richter, Gerald" <>
Subject Re: Gerald: please update module to include patch for 3.38+
Date Sun, 20 Sep 2009 12:24:40 GMT
Hi Chris,

I think Neil has done a good explaination what can be done, so that a site
scales better.

Regardings the installation issues. The Problem is, that because Embperl
work very close togehther with Apache and mod_perl, it needs to be compiled
with the same compiler settings as Apache and mod_perl. The point is that
not every distribution, has this information at the right place (or it is
not there at all). The Makefile.PL tries it's best to figure out which
options to use, but it does not work all the time.

The best would be, if we had a packages maintainers for the main
distrubtions (like Debian, SUSE, RedHat etc.) which knows about their
distribution (because I do not know all the specifica of all these


2009/9/18 Chris Denman <>

> Hi Gerald,
> For someone like me who is more of an enthusiast rather than expert (I
> play and use a lot of trial and error) I find installing Embperl
> really confusing.
> Maybe it's just me, maybe I am missing the point.  But for some reason
> it can take me a few days of bashing around to get it all to work
> properly (and even then I don't think it is!).
> An example would be that there's a lot of virtual servers popping up
> these days.  I just purchased a virtual server with CentOS 5 with
> Plesk 9 (64-bit).  It took days to get Embperl working under mod_perl.
>  Can't even remember exactly why as it's all a blur now!  All I
> remember is that the server was all pre-installed with the very latest
> versions of Apache and mod_perl.  But I would get errors everywhere.
> I would uninstall things, reinstall things.  I would never be able to
> find apache source.  I just think that brute force got me there in the
> end.
> Now I have it working, I am finding memory management temperamental.
> Mucking around with Max_Servers and so on would drive me insane.  Too
> low and the server would hang whilst requests would queue up, too high
> and I'd run out of memory.  Most virtual servers give you 1Mb to play
> with (with 4mb burstable, whatever that means!).
> Is there any master guru out there that could put together some sort
> of manual for real-life scenarios?
> I made a utility for Twitter that went viral for a week - my server
> took 30,000 hits in a few hours.  Of course, it crashed.  I went away
> and tried everything to get it working under this sort of load.  Thing
> is, the traffic slowed and I'll never know if my new setup with hold
> up.  Can I expect, say, 200 concurrent users on a Embperl website with
> only 1Mb of Ram?  If so, what's the best Apache configuration?
> Sometimes I'd make one request and it'd be rapid.  Then the next
> request would hang.
> I understand that I should have a good understanding on how everything
> works from the ground up - but if I was that good, I would have made
> my own Embperl!
> Please don't take any of this the wrong way - I absolutely LOVE Embper
> (I can't code anymore without it!).  That's why I get so frustrated
> when I can't get it all working right.  I can see the potential - but
> can never seem to find it.
> Can't wait for any new versions....!
> Chris Denman
> 2009/9/18 Richter, Gerald <>:
> >
> >
> > 2009/9/17 Michael Stevens <>
> >>
> >> Gerald,
> >>
> >> I've attached my diff below. It's mainly from the previous mailing list
> >> post:
> >>
> >>
> >> Hoping to see a new release soon?
> >
> > Thanks for the patch. I have now not so much workload anymore and hope to
> > get out a new version during the next weeks.
> >
> > The main work is, that it not only have to work with the newest version
> of
> > Perl , mod_perl and Apache, but with a lot of  older versions and
> > combinations of them
> >
> > Gerald
> >
> >
> >

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