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Date: Tue, 11 Mar 2008 20:12:03 +0530
From: Nilesh Govindrajan <admin@itech7.com>
To: users@httpd.apache.org
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Subject: Re: [users@httpd] Access is slow when accessed by IP address
 instead of 'localhost'

On Tue, 11 Mar 2008 14:39:36 +0000
David Cassidy <david@twocats.co.uk> wrote:

> Nilesh
> 
> Check if its doing a reverse lookup.
> 
> you need DNS for that ...
> 
> D
> 
> On Tue, 2008-03-11 at 19:48 +0530, Nilesh Govindrajan wrote:
> > On Tue, 11 Mar 2008 09:10:16 -0500
> > "Adam Martin" <Adam.Martin@infor.com> wrote:
> > 
> > > Dinesh,
> > > 
> > >  
> > > 
> > > When I started reading I thought you may be experiencing a delay
> > > with the host resolution but when you mentioned that you could
> > > access another Tomcat application using the IP Address it doesn't
> > > sound like you are.
> > > 
> > >  
> > > 
> > > To be sure you may want to add the 192.168.1.2 host to your hosts
> > > file on the server and make sure the server is set to resolve
> > > names locally before accessing DNS to see if it makes any
> > > difference.  Other than that I got zip.  Good luck.
> > > 
> > >  
> > > 
> > > ________________________________
> > > 
> > > From: Dinesh Kumar [mailto:pdineshk@elitmus.com] 
> > > Sent: Tuesday, March 11, 2008 6:29 AM
> > > To: users@httpd.apache.org
> > > Subject: [users@httpd] Access is slow when accessed by IP address
> > > instead of 'localhost'
> > > 
> > >  
> > > 
> > > Hi all,
> > > 
> > > I'm facing a peculiar problem.  My environment is as follows:
> > > 
> > > Apache 2.2.4
> > > mod_jk 1.2.23
> > > Tomcat 6.0.13
> > > 
> > > When I access the Java application running on Tomcat like this:
> > > curl http://localhost/community/forums/list.page, I get a
> > > response within 1 second.  However, when I access it like this:
> > > http://192.168.1.2/community/forums/list.page, the response takes
> > > 10 seconds.
> > > 
> > > To be clear, in both the cases I'm accessing the application from
> > > the *same* machine that runs httpd/tomcat.  I found out about
> > > this issue when I tried to access it from another machine on the
> > > same LAN, which is how it will be actually accessed when the
> > > issue is resolved. I tried to find out what happened when I
> > > accessed it from the same machine on which it is running, and
> > > found that it behaves similarly as I mentioned above.
> > > 
> > > 192.168.1.2 is on eth0, and eth0 is setup as a trusted device.
> > > When I access another Tomcat 6 application running locally like
> > > this: curl http://192.168.1.2/recruit/admin, the request is
> > > served instantly.
> > > 
> > > The extra time occurs between the following lines of mod_jk.log:
> > > 
> > > [Mon Mar 10 17:03:54 2008] [7071:60304] [debug]
> > > ajp_send_request::jk_ajp_common.c (1287): (forum) request body to
> > > send 0
> > > - request body to resend 0
> > > [Mon Mar 10 17:04:04 2008] [7071:60304] [debug]
> > > ajp_connection_tcp_get_message::jk_ajp_common.c (1043): received
> > > from ajp13 pos=0 len=133 max=8192
> > > 
> > > I thought it was something to do with mod_jk and installed version
> > > 1.2.26, but the problem persists.
> > > 
> > > Any pointers would be welcome!
> > > 
> > > Thanks,
> > > Dinesh.
> > > 
> > 
> > According to me, an IP address doesn't need the DNS to resolve
> > something.
> > 
> 
> 
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I am not the guy who has the problem!!! BTW, I know that for Reverse
lookups, a DNS is needed.

-- 
Nilesh G
India Technologies Administrator
www.itech7.com

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