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Subject: Re: Tomcat 6.0 with Apache 2.2 front-end
From: David Cassidy <david@twocats.co.uk>
To: Tomcat Users List <users@tomcat.apache.org>
In-Reply-To: <158274.26342.qm@web39811.mail.mud.yahoo.com>
References: <158274.26342.qm@web39811.mail.mud.yahoo.com>
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Date: Fri, 30 Nov 2007 09:25:11 +0000
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Tony,

mod_jk - which uses the ajp13 protocol is not the same as
the http11aprprotocol which uses http/1.1 as its protocol.

Filip - is there a comparison between apache talking to http to tomcat
vs apache with ajp to tomcat ?

Ta

D


On Thu, 2007-11-29 at 13:37 -0800, Tony Anecito wrote:
> Thanks Filip I am interested in that information also.
> 
> I will try to get it configured and running and give
> feedback on performance since I already use mod_jk or
> the Http11AprProtocol as I think you call it.
> 
> Regards,
> -Tony
> 
> --- Filip Hanik - Dev Lists <devlists@hanik.com>
> wrote:
> 
> > the speed of the connectors are (in order)
> > 
> > Http11Protocol - Java BIO connector, no poller,
> > blocking read/write
> > Http11AprProtocol - APR connector, poller, blocking
> > read/write
> > Http11NioProtocol - Java NIO connector, poller,
> > simulated blocking 
> > read/write
> > 
> > the reason the NIO is slower, is cause it has to
> > simulate "blocking" 
> > reads and writes through a non blocking API.The
> > reason the BIO is the 
> > fastest, is cause there is no context switching
> > during block simulation, 
> > or adding/removing the connection from a poller.
> > 
> > When it comes to SSL, the APR connector is much
> > faster than both the 
> > Java connectors.
> > 
> > Filip
> > 
> > David Cassidy wrote:
> > > Has anyone got a comparison of the NIO one vs
> > standard java connectors ?
> > > both with and without the native libs ?
> > >
> > > Ta
> > >
> > >
> > > On Thu, 2007-11-29 at 08:38 -0600, Brian Millett
> > wrote:
> > >   
> > >> Filip Hanik - Dev Lists escribío:
> > >>     
> > >>> using mod_proxy_http, you want to enable
> > >>>
> > >>> ProxyPreserveHost On
> > >>>
> > >>>
> > >>> Filip
> > >>> loknor wrote:
> > >>>       
> > >>>> Filip Hanik - Dev Lists wrote:
> > >>>>  
> > >>>>         
> > >>>>> three options
> > >>>>>
> > >>>>> mod_proxy_http
> > >>>>> mod_jk
> > >>>>> mod_proxy_ajp
> > >>>>>
> > >>>>> Filip
> > >>>>>
> > >>>>>
> > >>>>>     
> > >>>>>           
> > >>>> Yep just found the other option, and a site
> > that got me up to speed very
> > >>>> quickly.  I can now communicate between Apache
> > and Tomcat. 
> > >>>>
> >
> http://blog.taragana.com/index.php/archive/5-steps-to-integrate-tomcat-55-with-apache-20
> > >>>>
> > >>>>
> > >>>> Thanks,
> > >>>>
> > >>>> Brent
> > >>>>   
> > >>>>         
> > >> I'd also recommend that you compile the apr
> > native libs for tomcat
> > >> (apache-tomcat-6.0.14/bin/tomcat-native.tar.gz)
> > and enable it when you start
> > >> tomcat by adding
> > "-Djava.library.path=/usr/local/apr/lib" (I
> > installed the lib
> > >> in /usr/local/apr/lib).
> > >>
> > >> What gives you is the apr interface for handling
> > the http connects.
> > >>
> > >> from the catalina.out:
> > >>
> > >> Nov 26, 2007 9:31:10 AM
> > org.apache.coyote.http11.Http11AprProtocol init
> > >> INFO: Initializing Coyote HTTP/1.1 on http-8080
> > >>
> > >> This handler scales and is quicker than the java
> > handler.  JBoss calls it
> > >> JBossWeb.  See
> > http://labs.jboss.com/jbossweb/index.html for a nice
> > graph of the
> > >> performance differences between the native apr &
> > java handlers.
> > >>
> > >>
> > >>     
> > >
> > >
> > >
> >
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> > >
> > >   
> > 
> > 
> >
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> 
> 
> 
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