Rails - May 2007 - request for 127.0.0.1 on remote servers (is it caching?)

Hi everyone,
I''m having some trouble understanding what''s going on with my
production server.
When a page is accessed, sometimes after the page is already displayed
(in the log I get a 200 OK message for the entire page), I see tons of
requests for 127.0.0.1, and I just can''t understand where
they''re
coming from.
I read a bit about caching and mongrel and I''m starting to think it
might have something to do with caching (although I have not specified
caching for any of my controllers, in the production.rb it is set to
true).

The real problem is I have a routing redirect for every request that
does not start with www (e.g: user.mysite.com) to be direct to the
user/index action. so what happens with those unknown requests is that
they too are redirected which is causing heavy load for the webserver
for no reason.

I can of course work around the issue of the redirection somehow, but
i''m more in interested in why it happens.

Thanks!
Ehud


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On 24 May 2007, at 14:19, Ehud wrote:
> I''m having some trouble understanding what''s going on
with my
> production server.
> When a page is accessed, sometimes after the page is already displayed
> (in the log I get a 200 OK message for the entire page), I see tons of
> requests for 127.0.0.1, and I just can''t understand where
they''re
> coming from.
> I read a bit about caching and mongrel and I''m starting to think
it
> might have something to do with caching (although I have not specified
> caching for any of my controllers, in the production.rb it is set to
> true).
>
> The real problem is I have a routing redirect for every request that
> does not start with www (e.g: user.mysite.com) to be direct to the
> user/index action. so what happens with those unknown requests is that
> they too are redirected which is causing heavy load for the webserver
> for no reason.
>
> I can of course work around the issue of the redirection somehow, but
> i''m more in interested in why it happens.
Are you using Pound for the load balancing by any chance?


Best regards

Peter De Berdt


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Nope, I''m running mongrel cluster with apache 2.0...
It seems that whenever I try to access a page, after it is generated
and sent a lot of other calls are also
logged to http://127.0.0.1/ by an unknown source... :)
also strange is that the session id of these calls is not the same as
the session id of my own user, meaning it is indeed not requests made
by me.
Any thoughts?

Peter De Berdt wrote:
> On 24 May 2007, at 14:19, Ehud wrote:
>
> > I''m having some trouble understanding what''s going
on with my
> > production server.
> > When a page is accessed, sometimes after the page is already displayed
> > (in the log I get a 200 OK message for the entire page), I see tons of
> > requests for 127.0.0.1, and I just can''t understand where
they''re
> > coming from.
> > I read a bit about caching and mongrel and I''m starting to
think it
> > might have something to do with caching (although I have not specified
> > caching for any of my controllers, in the production.rb it is set to
> > true).
> >
> > The real problem is I have a routing redirect for every request that
> > does not start with www (e.g: user.mysite.com) to be direct to the
> > user/index action. so what happens with those unknown requests is that
> > they too are redirected which is causing heavy load for the webserver
> > for no reason.
> >
> > I can of course work around the issue of the redirection somehow, but
> > i''m more in interested in why it happens.
>
> Are you using Pound for the load balancing by any chance?
>
>
> Best regards
>
> Peter De Berdt

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Are they requests for images, css and javscript files?

Have you looked in the Apache log to correlate the requests?

On May 24, 12:45 pm, Ehud
<ehud...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Nope, I''m running mongrel cluster with apache 2.0...
> It seems that whenever I try to access a page, after it is generated
> and sent a lot of other calls are also
> logged tohttp://127.0.0.1/by an unknown source... :)
> also strange is that the session id of these calls is not the same as
> the session id of my own user, meaning it is indeed not requests made
> by me.
> Any thoughts?
>
> Peter De Berdt wrote:
> > On 24 May 2007, at 14:19, Ehud wrote:
>
> > > I''m having some trouble understanding what''s
going on with my
> > > production server.
> > > When a page is accessed, sometimes after the page is already
displayed
> > > (in the log I get a 200 OK message for the entire page), I see
tons of
> > > requests for 127.0.0.1, and I just can''t understand
where they''re
> > > coming from.
> > > I read a bit about caching and mongrel and I''m starting
to think it
> > > might have something to do with caching (although I have not
specified
> > > caching for any of my controllers, in the production.rb it is set
to
> > > true).
>
> > > The real problem is I have a routing redirect for every request
that
> > > does not start with www (e.g: user.mysite.com) to be direct to
the
> > > user/index action. so what happens with those unknown requests is
that
> > > they too are redirected which is causing heavy load for the
webserver
> > > for no reason.
>
> > > I can of course work around the issue of the redirection somehow,
but
> > > i''m more in interested in why it happens.
>
> > Are you using Pound for the load balancing by any chance?
>
> > Best regards
>
> > Peter De Berdt

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good idea, thanks for the advice.
there are in fact entries in the access log like this:
127.0.0.1 - - [24/May/2007:22:01:38 +0000] "GET / HTTP/1.0" 302 89
"-"
"Apache/2.2.4 (Unix) mod_ssl/2.2.4 OpenSSL/0.9.8b PHP/5.2.1 (internal
dummy connection)"

for each of the requests I get in my production.log.

there are also lots of entries for stylesheets, js and images, but the
one I''ve pasted is trying to access "/", which then gets
redirected to
rails and logged in my rails log file. I wonder what''s causing those
hits?

thanks for the help guys :)

On May 24, 9:51 pm, dasil003
<gabrie...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Are they requests for images, css and javscript files?
>
> Have you looked in the Apache log to correlate the requests?
>
> On May 24, 12:45 pm, Ehud
<ehud...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Nope, I''m running mongrel cluster with apache 2.0...
> > It seems that whenever I try to access a page, after it is generated
> > and sent a lot of other calls are also
> > logged tohttp://127.0.0.1/byan unknown source... :)
> > also strange is that the session id of these calls is not the same as
> > the session id of my own user, meaning it is indeed not requests made
> > by me.
> > Any thoughts?
>
> > Peter De Berdt wrote:
> > > On 24 May 2007, at 14:19, Ehud wrote:
>
> > > > I''m having some trouble understanding
what''s going on with my
> > > > production server.
> > > > When a page is accessed, sometimes after the page is already
displayed
> > > > (in the log I get a 200 OK message for the entire page), I
see tons of
> > > > requests for 127.0.0.1, and I just can''t understand
where they''re
> > > > coming from.
> > > > I read a bit about caching and mongrel and I''m
starting to think it
> > > > might have something to do with caching (although I have not
specified
> > > > caching for any of my controllers, in the production.rb it
is set to
> > > > true).
>
> > > > The real problem is I have a routing redirect for every
request that
> > > > does not start with www (e.g: user.mysite.com) to be direct
to the
> > > > user/index action. so what happens with those unknown
requests is that
> > > > they too are redirected which is causing heavy load for the
webserver
> > > > for no reason.
>
> > > > I can of course work around the issue of the redirection
somehow, but
> > > > i''m more in interested in why it happens.
>
> > > Are you using Pound for the load balancing by any chance?
>
> > > Best regards
>
> > > Peter De Berdt

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