Hi there,
On Fri, 14 Dec 2001, Anand R wrote:
The Request Object contains info sent to the server in the client's request.
[snip]
Maybe this should not a big problem,U just have to have a look at the
Apache Doc.
I think he's trying to say
perldoc Apache::Request
:)
73,
Ged.
PS: Cute
Yes PerlDoc .
And you have a very good doc on Indigoperl.
U even have it in mod_perl
:) -
PS:- Paul I saw your site and that is real nice.
- Original Message -
From: Ged Haywood [EMAIL PROTECTED]
To: Anand R [EMAIL PROTECTED]
Cc: Paul Makepeace [EMAIL PROTECTED]; [EMAIL PROTECTED]
Hi Hemant Singh, A round-robin dns server would be easiest. There's no true load balancing this way though. Regards, John Hoffman - Original Message - From: Hemant Singh Sent: Friday, December 14, 2001 1:29 AM To: [EMAIL PROTECTED] Subject: load balancing on apache Hi All I am
On Fri, Dec 14, 2001 at 08:31:26AM +, Ged Haywood wrote:
Hi there,
On Fri, 14 Dec 2001, Anand R wrote:
The Request Object contains info sent to the server in the client's request.
[snip]
Maybe this should not a big problem,U just have to have a look at the
Apache Doc.
I think
On Fri, 14 Dec 2001, Hemant Singh wrote:
Pls suggest how can i achieve this on apache.
mod_backhand may be able to help you out here with proper pass it on
type load balancing. If you use it with wackamole you might not even need
the front machine.
http://www.backhand.org/
Haven't used it
As far as the httpd.conf goes ,
Alias /perl/ /real/path/to/perl/scripts/
Location /perl
SetHandler perl-script
PerlHandler Apache::Registry
Options ExecCGI
/Location
PerlModule Apache :: Registry
PerlModule CGI
PerlSendHandler On
Files *.perl
SetHandler perl-script
I think I know what's happening here. Your script is running as a CGI, not
as mod_perl. Check:
print not unless $ENV{MOD_PERL};
print running under mod_perl\n;
Matt.
--
:-Get a smart net/:-
-Original Message-
From: Paul Makepeace [mailto:[EMAIL PROTECTED]]
Sent: 14 December
Does any one weather we can have a
Trial Version of ApacheCon.
Or it is paided.
TIA,
Anand
Hemant Singh [EMAIL PROTECTED] writes:
Hi All
I am planning to host an application and its size is going to be big one , so
expect the concurrent number of connection s to be around 2200.To combat the
same , want to perform load sharing on 3-4 servers.So the ide is to put one
machine
A bit late, but..
Can't remember the exact URL, but search GOOGLE for GNUDOTNET.
They have started to whip up a FREE version of MS's .net platform.
Don't know if this is what you want, but.
Cheers!
Mark Harrop
[EMAIL PROTECTED]
`\|||/
(@@)
On Fri, Dec 14, 2001 at 09:20:06AM -, Matt Sergeant wrote:
I think I know what's happening here. Your script is running as a CGI, not
as mod_perl. Check:
print not unless $ENV{MOD_PERL};
print running under mod_perl\n;
Yup, this is it. Grrr, seems like my Files /perl-bin/*.cgi was
Paul.Matt,ged and others on the ring,
at last the problem is solved
regards,
ANAND ,
PDM Programmer,
www.dsmsoft.com
- Original Message -
From: Paul Makepeace [EMAIL PROTECTED]
To: Matt Sergeant [EMAIL PROTECTED]
Cc: Ged Haywood [EMAIL PROTECTED]; Anand R [EMAIL PROTECTED];
here maybe?:
http://www.dotgnu.org/
Mark
Mark Tiramani
FREDO Internet Services
[EMAIL PROTECTED]
-- Hemant Singh [EMAIL PROTECTED]
Hi All
I am planning to host an application and its size is going to be big one
, so expect the concurrent number of connection s to be around 2200.To
combat the same , want to perform load sharing on 3-4 servers.So the ide
is to put one machine on
Paul,
I have version .33 working on perl 5.6.1 on a redhat 7.2 box (I compiled
perl myself). However, if I do the command you do below, I get the same
error.
--Alex
-Original Message-
From: Paul Makepeace [mailto:[EMAIL PROTECTED]]
Sent: Friday, December 14, 2001 12:43 AM
To:
I am planning to host an application and its size is going to be big one ,
so expect the concurrent number of connection s to be around 2200.
To combat the same , want to perform load sharing on 3-4 servers.
If you really expect 2200 concurrent connections, you should buy dedicated
With
this amount of connections, you may want
to check LVS at http://www.linuxvirtualserver.com
or Ultra Monkey
et http://ultramonkey.sourceforge.net/(althought
i never used the last one, I think it might be easier to use).
This
is open, efficient and reliableload
balancing and high
Hi
all,
You
can do load balancing using ipchains as well.
Can't
remember the program name offhand, but if I have time
I'll
look it up and let the list know.
Only
works if your servers are Linux of course.
Kind
regards
Derek.
In article [EMAIL PROTECTED],
Stas Bekman [EMAIL PROTECTED] wrote:
Andrew Green wrote:
The *really* peculiar thing is that actual scripts that use Fcntl
work with no problems -- but I can't preload the module, or preload
other modules that use it.
Hmm, how about upgrading modperl?
Hi all,
On Fri, 14 Dec 2001, Alex Porras wrote:
I have version .33 working on perl 5.6.1 on a redhat 7.2 box (I compiled
perl myself). However, if I do the command you do below, I get the same
You need a request object to give to Apache::Request::new().
It makes no sense to call it from the
Perrin Harkins [EMAIL PROTECTED] writes:
I am planning to host an application and its size is going to be big one ,
so expect the concurrent number of connection s to be around 2200.
To combat the same , want to perform load sharing on 3-4 servers.
If you really expect 2200 concurrent
You should also check out Coyote Point's Equalizer ... this a
hardware/software solution that worked well for ValueClick up to about 70
million requests per day. It's basically a FreeBSD box with a custom
dynamic natd ... supports hot-swap redundancy with two of 'em installed
... and a _lot_
Well,
Linux Virtual Server is using ipchains (on the load balancer),
and you can use any kind of OS
on your real servers (those running your
application), since it's only
TCP/IP routing and/or forwarding.
Thanks
Frederic, I had only ever hand-cranked this kind
of
setup manually
Aside from the fact I _really_ wouldn't expect that manny actual, live
TCP connections at one time...
Nor would I, although we did see huge numbers of open connections during
peak times at eToys. Mostly to the image serving machines though.
I _really_ hate so-called dedicated boxes. They're
Hello, All!
I wonder why my '$cookie-expires' for this code returns a
different result than the similar one with CGI::Cookie (commented).
The result is different in a way that some additional binary code is
being added to the expiry date.
$cookie = Apache::Cookie-new( $r,
-name=access,
[EMAIL PROTECTED] wrote:
You can make it work with homegrown solutions, but I've found the dedicated
load-balancing tools (at least Big/IP) to be effective and fairly easy to
work with, even with large loads, failover requirements, and more exotic
stuff like sticky sessions. This is one area
Thanks, Mark. I have looked at dotgnu, but they don't provide specifically
what I was looking for - web GUI generation and automatic hookup to a
database. So far, www.dbforms.org is the best product I found.
Simon
Mark Harrop wrote:
A bit late, but..
Can't remember the exact URL, but
On Fri, 14 Dec 2001, Perrin Harkins wrote:
I _really_ hate so-called dedicated boxes. They're closed, nasty,
inflexible and often don't work in _your_ situation. Doing smart
session-based redirection can be hard with these boxes.
You can make it work with homegrown solutions, but I've
Alexei Danchenkov [EMAIL PROTECTED] said something to this effect on 12/14/2001:
Hello, All!
I wonder why my '$cookie-expires' for this code returns a
different result than the similar one with CGI::Cookie
(commented). The result is different in a way that some
additional binary code is
At least one person MUST mention Backhand!
www.backhand.org
I'm working on a project right now that is expected to grow to 100+
servers in the next 12 months. In past projects I've worked on, handling
of the log files becomes non-trivial at numbers far below that, so I
built the new system
Jeff Beard wrote:
On Fri, 14 Dec 2001, Perrin Harkins wrote:
I _really_ hate so-called dedicated boxes. They're closed, nasty,
inflexible and often don't work in _your_ situation. Doing smart
session-based redirection can be hard with these boxes.
You can make it work with
Hi All,
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an investor with their
company is very angry because of what a horrible choice mod_perl is for
high-load web applications compared with Apache modules and even CGI
http://www.perl.com/pub/a/2001/10/17/etoys.html
Yea, mod_perl really sucks ; )
I have even worked on poorly architectured and coded sites which still
performed fairly well.
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an
On Fri, Dec 14, 2001 at 12:12:09PM -0800, Jeff Yoak wrote:
Hi All,
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an investor with their
company is very angry because of what a horrible choice mod_perl is for
Investors suck like that. I have had to fight many of these battles.
The first thing to do is find out specifically _why_ the investor thinks
that so you can counter their claims. Trying to counter vague notions of
'terrible' is impossible. The opponent has to commit to an opinion
before you
I was using Cache::SharedMemoryCache on my system. I figured, Hey, it's
RAM, right? It's gonna be WAY faster than anything disk-based.
The thing you were missing is that on an OS with an aggressively caching
filesystem (like Linux), frequently read files will end up cached in RAM
anyway.
Jeff Yoak [EMAIL PROTECTED] writes:
Hi All,
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an
investor with their company is very angry because of what a
horrible choice mod_perl is for
I spoke to the technical lead at Yahoo who said mod_perl will not scale as
well as c++ when you get to their level of traffic, but for a large
ecommerce site mod_perl is fine.
I think people just stick to what they started with. We wrote our site
racesearch.com using mod_perl and it is super
I spoke to the technical lead at Yahoo who said mod_perl will not scale as
well as c++ when you get to their level of traffic, but for a large
ecommerce site mod_perl is fine.
Scalability has less to do with language/execution environment than
which database you are using. Path length is
Another powerful tool for tracking down performance problems is perl's
profiler combined with Devel::DProf and Apache::DProf. Devel::DProf
is bundled with perl. Apache::DProf is hidden in the Apache-DB package
on CPAN.
Ya know the place in my original comment where I was optimizing a
I spoke to the technical lead at Yahoo who said mod_perl will not scale as
well as c++ when you get to their level of traffic, but for a large
ecommerce site mod_perl is fine.
According to something I once read by David Filo, Yahoo also had to tweak
the FreeBSD code because they had trouble
Perrin Harkins [EMAIL PROTECTED] writes:
I spoke to the technical lead at Yahoo who said mod_perl will not scale as
well as c++ when you get to their level of traffic, but for a large
ecommerce site mod_perl is fine.
According to something I once read by David Filo, Yahoo also had to
At 09:15 PM 12/14/2001 +0100, Thomas Eibner wrote:
The key to mod_perl development is speed, there are numerous testimonials
from users implementing a lot of work in a very short time with mod_perl.
Ask the clients investor wheter he wants to pay for having everything you
did rewritten as an
At 03:12 PM 12/14/01, Jeff Yoak wrote:
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an investor with
their company is very angry because of what a horrible choice
mod_perl is for high-load web applications compared
On Fri, 14 Dec 2001, Perrin Harkins wrote:
The thing you were missing is that on an OS with an aggressively caching
filesystem (like Linux), frequently read files will end up cached in RAM
anyway. The kernel can usually do a better job of managing an efficient
cache than your program can.
On Fri, 14 Dec 2001, Thomas Moore wrote:
I spoke to the technical lead at Yahoo who said mod_perl will not scale as
well as c++ when you get to their level of traffic, but for a large
ecommerce site mod_perl is fine.
Well, Yahoo is _extremely_ atypical. And they do a lot of stuff that
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On Fri, Dec 14, 2001 at 12:12:09PM -0800, Jeff Yoak wrote:
Recently I did a substantial project for a client in using
mod_perl. That client is happy with the work, but an investor with their
company is very angry because of what a
I dont think its your responsibility anymore. If the investor had a
preference he should have stated it BEFORE work began. If your client
did not keep him informed then your client has that burden to bear.
You did your job, the client likes what you did, it works. Let them
fight the political
Mod_perl doesn't suck, and it certainly doesn't have a huge hit on the
CPU. (of course it all depends what you're doing, but for the most part
it's small)
Having used many high level web development environments, from C to
Java to TCL and perl, I find mod_perl at the top end of the scalability
On Fri, Dec 14, 2001 at 12:58:51PM -0800, Jeff Yoak wrote:
At 09:15 PM 12/14/2001 +0100, Thomas Eibner wrote:
The key to mod_perl development is speed, there are numerous testimonials
from users implementing a lot of work in a very short time with mod_perl.
Ask the clients investor wheter he
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Hash: SHA1
On Fri, Dec 14, 2001 at 12:58:51PM -0800, Jeff Yoak wrote:
This is something different. The investor is in a related business, and
has developed substantially similar software for years. And it is really
good. What's worse is that my normal,
Hi there,
On Fri, 14 Dec 2001, Jeff Yoak wrote:
This is something different. [big snip]
Indeed it is. It's a refreshingly honest appraisal of what might,
in hindsight, have been easily avoided mistakes.
And nobody ever did anything without making a few.
Thanks.
73,
Ged.
PS: Are any of
At 03:58 PM 12/14/2001, Jeff Yoak wrote:
At 09:15 PM 12/14/2001 +0100, Thomas Eibner wrote:
The key to mod_perl development is speed, there are numerous testimonials
from users implementing a lot of work in a very short time with mod_perl.
Ask the clients investor wheter he wants to pay for
So I'm trying to show that mod_perl doesn't suck, and that it is, in fact,
a reasonable choice. Though within these limits it is still reasonable to
point out the development cycle, emotionally it is the least compelling
form of argument, because the investor has a hard time removing from
... years ago ... Are you even sure he evaluated mod_perl and not Perl CGI
scripts?? Launching the interpreter and compiling every time might spike the
CPU. Like others have said, you would really have to benchmark the mod_perl and
Apache that you're using now; both have improved
All,
I wasn't sure what volume of response to expect when I originally
wrote. Thank you all for the comments that you all are making. They are
helping. Given that the response is fairly high, I'm waiting for stuff to
roll in rather than replying to each of you. Don't think it is
Dave Hodgkinson wrote on Fri, Dec 14 2001 (20:54:22 +):
Perrin Harkins [EMAIL PROTECTED] writes:
According to something I once read by David Filo, Yahoo also had to tweak
the FreeBSD code because they had trouble scaling *TCP/IP*! I would say
their experience is not typical.
Toni Andjelkovic [EMAIL PROTECTED] writes:
2.x linux kernels too.
that was an issue with 2.0.x, since 2.2.x
you can do it with
That was what I meant...decimal point in the wrong place... :-)
--
David Hodgkinson, Wizard for Hirehttp://www.davehodgkinson.com
Editor-in-chief, The
Hi folks, Im running an apache/mod_perl server and hope this isn't too far
off base. I'm trying to get the following script to run against an
e-merchant system. I've narrowed it down to the content_type and am
struggling on how to send form data via LWP::UserAgent.
I beleive all I need is to
So our solution was caching in-process with just a hash, and using a
DBI/mysql persistent store.
in pseudo code
sub get_stuff {
if (! $cache{$whatever} ) {
if !( $cache{whatever} = dbi_lookup()) {
$cache{$whatever}=derive_data_from_original_source($whatever);
dbi_save($cache_whatever);
}
On Fri, 14 Dec 2001, Thomas Moore wrote:
I spoke to the technical lead at Yahoo who said mod_perl
will not scale as well as c++ when you get to their
level of traffic, but for a large ecommerce site
mod_perl is fine.
the old memory is cheap rationalization doesn't go over
very well at that
-- Jeff Yoak [EMAIL PROTECTED] on 12/14/01 12:58:51 -0800
This is something different. The investor is in a related business, and has
developed substantially similar software for years. And it is really good.
What's worse is that my normal, biggest argument isn't compelling in this
case,
On December 14, 2001 03:04 pm, Perrin Harkins wrote:
So our solution was caching in-process with just a hash, and using a
DBI/mysql persistent store.
in pseudo code
sub get_stuff {
if (! $cache{$whatever} ) {
if !( $cache{whatever} = dbi_lookup()) {
I think you also have to specify weather your web applications are
state-less or not. If stateless, then you can just use DNS Round Robin
technique or lbnamed (Load Balancing Name Server) to achieve this load
balancing or high availability.
If your apps are statefull as in ASP, Cold Fusion,
So I'm trying to show that mod_perl doesn't suck, and that it is, in
fact, a reasonable choice.
I think one of the selling points for mod_perl is its extensibility:
modules can be written in C. Depending on the C code you have access
to, a good solution might be to try to wrap it into
At 6:04 PM -0500 12/14/01, Perrin Harkins wrote:
That's actually a bit different. That would fail to notice updates between
processes until the in-memory cache was cleared. Still very useful for
read-only data or data that can be out of sync for some period though.
The primary problem with
The original poster talked about C++ CGI programs. I have been using
mod_perl since 0.7x days and I can tell you there is no way a fork+exec
CGI program no matter what language its written in will come anywhere
close to a perl handler written against the mod_perl Apache API in
execution speed
On December 14, 2001 03:53 pm, Robert Landrum wrote:
At 6:04 PM -0500 12/14/01, Perrin Harkins wrote:
That's actually a bit different. That would fail to notice updates
between processes until the in-memory cache was cleared. Still very
useful for read-only data or data that can be out of
The thing you were missing is that on an OS with an aggressively caching
filesystem (like Linux), frequently read files will end up cached in RAM
anyway. The kernel can usually do a better job of managing an efficient
cache than your program can.
For what it's worth, DeWitt Clinton
My recommendation is that you do none of the things that you are looking at
for optimal performance. Instead, opt for a seperate hardware solution. We
went through this about a year ago when we were architecting a solution for
my employers site. Admittedly, takes more traffic than you do, but
Flamebait
For some really high performance sites, compiled C is the way to go. It's
faster and as long as you remove all compilers from the machines in
question, it's also more secure.
/flamebait
Having said that, I will also add that the downside is that in order to keep
pace with your
I would like to see the article of Randal Schwartz ,..
Will some one help me out with this
- Original Message -
From: Steven Lembark [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, December 14, 2001 2:45 PM
Subject: Re: load balancing on apache
-- Hemant Singh [EMAIL
IP chaining can be done in
Java Webserver,
How to do it in Apache
Webserver.
Please let the Ring know
this,
Thanks in advance,
Regards,
Anand
- Original Message -
From:
Derek Jones
To: Hemant
Singh ; [EMAIL PROTECTED]
Cc: Derek G Jones
Sent: Friday, December
-- Anand R [EMAIL PROTECTED]
I would like to see the article of Randal Schwartz ,..
Will some one help me out with this
Check out his website at stonehenge.com. Look for
something like poor man's load balancer. Trick was
to use the URI [post read?] to re-write the URI and
post it to
Hi,
Can u pls
unsubscribeme form the mod-perl mailing list. Expecting the
same
With Regards.Jayaraj G VWeb
DeveloperScapevelocity
Net Solutions,15, Jeevarathnam Nagar, Adyar,Chennai - 600020Ph:
91-44-4916623Mobile: 98411
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