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Posted to users@tomcat.apache.org by rahul <Ra...@Sun.COM> on 2007/09/28 09:24:47 UTC
Apache connectors for tomcat
Hi,
Which is the recommended connector for Apache now?
mod_jk or mod_proxy_ajp (with balancer) ?
rahul
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RE: Apache connectors for tomcat
Posted by Charlie Wingate <cw...@valco-data.com>.
Mod_jk and Mod_jk2 are different animals..............JK2 is deprecated.
The reason I mention it is that it is easy to assume that JK2 is the
"latest and greatest" given the naming convention. Mod_jk 1.2.25 was
released late july and IS the latest in the mod_jk project; to my
knowledge anyway.
~Charlie
The significant problems we have cannot be solved at the same level of
thinking with which we created them.
- Albert Einstein
-----Original Message-----
From: Tony Anecito [mailto:adanecito@yahoo.com]
Sent: Friday, September 28, 2007 10:19 AM
To: Tomcat Users List
Subject: RE: Apache connectors for tomcat
Not sure about the interface/protocol being depricated
since there was just a new release of mod_jk 1.2.25?
Also, someone put some effort into improvments into it
2.2.6 of Apache.
I also noticed a 10% performance improvement in
request response times using mod_jk which I was told
about and proven for my web services implementation
using Tomcat.
Finally what to do about load balanceing if Mod_jk
goes away does someone have an answer to that?
Regards,
-Tony
--- Charlie Wingate <cw...@valco-data.com> wrote:
> You may find this link helpful.....it works if your
> using the same
> versions as the article. But I think JK2 has been
> 'deprecated'.
>
>
http://www.roktech.net/devblog/enclosures/iis6-Tomcat5-JK2.pdf
>
> ~Charlie
>
>
> The significant problems we have cannot be solved at
> the same level of
> thinking with which we created them.
> - Albert Einstein
> -----Original Message-----
> From: Rahul.G.Nair@Sun.COM
> [mailto:Rahul.G.Nair@Sun.COM]
> Sent: Friday, September 28, 2007 3:25 AM
> To: users@tomcat.apache.org
> Subject: Apache connectors for tomcat
>
> Hi,
> Which is the recommended connector for Apache
> now?
> mod_jk or mod_proxy_ajp (with balancer) ?
>
> rahul
> --
> 1. e4 _
>
>
>
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RE: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
Thanks for the clarification.
-Tony
--- "Caldarale, Charles R"
<Ch...@unisys.com> wrote:
> > From: Tony Anecito [mailto:adanecito@yahoo.com]
> > Subject: RE: Apache connectors for tomcat
> >
> > Not sure about the interface/protocol being
> depricated
>
> It's mod_jk2 that has been abandoned for over two
> years; mod_jk is still
> in very active development. Any documentation or
> recommendations for
> mod_jk2 are sadly out of date.
>
> - Chuck
>
>
> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR
> OTHERWISE PROPRIETARY
> MATERIAL and is thus for use only by the intended
> recipient. If you
> received this in error, please contact the sender
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RE: Apache connectors for tomcat
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: Tony Anecito [mailto:adanecito@yahoo.com]
> Subject: RE: Apache connectors for tomcat
>
> Not sure about the interface/protocol being depricated
It's mod_jk2 that has been abandoned for over two years; mod_jk is still
in very active development. Any documentation or recommendations for
mod_jk2 are sadly out of date.
- Chuck
THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
MATERIAL and is thus for use only by the intended recipient. If you
received this in error, please contact the sender and delete the e-mail
and its attachments from all computers.
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RE: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
Not sure about the interface/protocol being depricated
since there was just a new release of mod_jk 1.2.25?
Also, someone put some effort into improvments into it
2.2.6 of Apache.
I also noticed a 10% performance improvement in
request response times using mod_jk which I was told
about and proven for my web services implementation
using Tomcat.
Finally what to do about load balanceing if Mod_jk
goes away does someone have an answer to that?
Regards,
-Tony
--- Charlie Wingate <cw...@valco-data.com> wrote:
> You may find this link helpful.....it works if your
> using the same
> versions as the article. But I think JK2 has been
> 'deprecated'.
>
>
http://www.roktech.net/devblog/enclosures/iis6-Tomcat5-JK2.pdf
>
> ~Charlie
>
>
> The significant problems we have cannot be solved at
> the same level of
> thinking with which we created them.
> - Albert Einstein
> -----Original Message-----
> From: Rahul.G.Nair@Sun.COM
> [mailto:Rahul.G.Nair@Sun.COM]
> Sent: Friday, September 28, 2007 3:25 AM
> To: users@tomcat.apache.org
> Subject: Apache connectors for tomcat
>
> Hi,
> Which is the recommended connector for Apache
> now?
> mod_jk or mod_proxy_ajp (with balancer) ?
>
> rahul
> --
> 1. e4 _
>
>
>
---------------------------------------------------------------------
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-----------------------------------------------------------
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> read, copy, or use it, and do not disclose it to
> others. Please notify the sender of the delivery
> error by replying to this message, and then delete
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************************************************************************************
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************************************************************************************
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RE: Apache connectors for tomcat
Posted by Charlie Wingate <cw...@valco-data.com>.
You may find this link helpful.....it works if your using the same
versions as the article. But I think JK2 has been 'deprecated'.
http://www.roktech.net/devblog/enclosures/iis6-Tomcat5-JK2.pdf
~Charlie
The significant problems we have cannot be solved at the same level of
thinking with which we created them.
- Albert Einstein
-----Original Message-----
From: Rahul.G.Nair@Sun.COM [mailto:Rahul.G.Nair@Sun.COM]
Sent: Friday, September 28, 2007 3:25 AM
To: users@tomcat.apache.org
Subject: Apache connectors for tomcat
Hi,
Which is the recommended connector for Apache now?
mod_jk or mod_proxy_ajp (with balancer) ?
rahul
--
1. e4 _
---------------------------------------------------------------------
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************************************************************************
************
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PineApp Mail-SeCure for the presence of malicious code, vandals &
computer viruses.
************************************************************************
************
-----------------------------------------------------------
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************************************************************************************
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Re: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
Hi Chris:
1. I am instrumenting inside the servlet code, looking
at Apache web server logs then at the Rich Internet
Application (RIA)
For a typcial request for my Portal from client to
servlet for example:
1. 4.55msec inside the RIA java code after the data
was read from the SOAP message.
2. 0 microseconds read in the Apache Web Server logs
3. Under a microsecond in the servlet code for the
service method.
I have a multi-tier caching system so most of the
request/responses are under 1500 bytes or the size of
a single packet. Even if there is a cache miss most of
the requests are still under 1500 bytes after
compression by JAXWS web service code.
Hope that helps.
Tony Anecito, Founder
MyUniPortal
--- Christopher Schultz <ch...@christopherschultz.net>
wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Tony,
>
> Tony Anecito wrote:
> > I am not sure if JBoss embedded Tomcat uses the
> native
> > ajp but a great point. Do you know how to check
> for
> > that?
>
> Since JBoss uses Tomcat, it can use any of the
> standard connectors
> available for it (basically HTTP(s) and/or AJP).
>
> > Also, you need to keep in mind the scale of
> things. In
> > other words my measurements at the client side are
> in
> > the 4 millisecond range. Depending how long the
> data
> > takes to get through communications stack on the
> > server then to the client comm stack we might
> actually
> > only be seeing a millisecond or two at Tomcat.
>
> Huh? I thought you were instrumenting your code
> within Tomcat resulting
> in 4ms transaction times, and you now wanted to know
> how much overhead
> was being added (on top of that) to the transaction
> by the other
> components. Is that not the case?
>
> > Normally overall transaction improvements of a
> > millisecond do not matter to most people ;-)
>
> Actually, if your transactions are taking 4ms and
> you can shave off 1ms,
> then that's a 25% performance improvement. If your
> transactions are
> taking 300ms, perhaps 1ms isn't that big of a deal.
>
> - -chris
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.7 (MingW32)
> Comment: Using GnuPG with Mozilla -
> http://enigmail.mozdev.org
>
>
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> 60oVc48I2SGWCqZHXVk4B0o=
> =WYdf
> -----END PGP SIGNATURE-----
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Re: Apache connectors for tomcat
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Tony,
Tony Anecito wrote:
> I am not sure if JBoss embedded Tomcat uses the native
> ajp but a great point. Do you know how to check for
> that?
Since JBoss uses Tomcat, it can use any of the standard connectors
available for it (basically HTTP(s) and/or AJP).
> Also, you need to keep in mind the scale of things. In
> other words my measurements at the client side are in
> the 4 millisecond range. Depending how long the data
> takes to get through communications stack on the
> server then to the client comm stack we might actually
> only be seeing a millisecond or two at Tomcat.
Huh? I thought you were instrumenting your code within Tomcat resulting
in 4ms transaction times, and you now wanted to know how much overhead
was being added (on top of that) to the transaction by the other
components. Is that not the case?
> Normally overall transaction improvements of a
> millisecond do not matter to most people ;-)
Actually, if your transactions are taking 4ms and you can shave off 1ms,
then that's a 25% performance improvement. If your transactions are
taking 300ms, perhaps 1ms isn't that big of a deal.
- -chris
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=WYdf
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Re: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
Hi Rainer,
I am not sure if JBoss embedded Tomcat uses the native
ajp but a great point. Do you know how to check for
that?
Also, you need to keep in mind the scale of things. In
other words my measurements at the client side are in
the 4 millisecond range. Depending how long the data
takes to get through communications stack on the
server then to the client comm stack we might actually
only be seeing a millisecond or two at Tomcat.
Normally overall transaction improvements of a
millisecond do not matter to most people ;-)
Regards,
Tony Anecito, Founder
MyUniPortal
--- Rainer Jung <ra...@kippdata.de> wrote:
> Charlie Wingate wrote:
> > I'm confused.....Doesn't mod_jk use ajp1.3 on the
> tomcat side? Was
> > that with or without the native runtime library?
>
> 1) mod_jk uses the protocol AJP
> 2) On the Tomcat side, there is a pure Java AJP
> connector, and a native
> one (called APR connector). You can choose.
> 3) Most likly (?) Tony meant "from mod_proxy_ajp" to
> mod_jk", although I
> would not expect a big performance difference
> between those two.
>
> The biggest difference between mod_jk and
> mod_proxy_ajp/mod_proxy_balancer at the moment in my
> opinion is
>
> - mod_jk gets released more often because it's
> independantly released,
> so it's easier for us to add features and fix bugs
> - mod_jk has more options to handle more complicated
> backend topologies
> - mod_proxy_* is easier to understand for simple
> configurations
> - mod_proxy_* has the advantage of automatically
> being installed on
> nearly all systems which have Apache httpd 2.2.
>
> Regards,
>
> Rainer
>
> > ~Charlie
> >
> >
> > The significant problems we have cannot be solved
> at the same level
> > of thinking with which we created them. - Albert
> Einstein
> >
> > -----Original Message----- From: Tony Anecito
> > [mailto:adanecito@yahoo.com] Sent: Friday,
> September 28, 2007 12:56
> > PM To: Tomcat Users List Subject: Re: Apache
> connectors for tomcat
> >
> > I had heard that mod_jk was faster so I switched
> from ajp to mod_jk
> > and sure enough mod_jk was 10% faster for me.
> >
> > -Tony
>
>
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Re: Apache connectors for tomcat
Posted by Rainer Jung <ra...@kippdata.de>.
Charlie Wingate wrote:
> I'm confused.....Doesn't mod_jk use ajp1.3 on the tomcat side? Was
> that with or without the native runtime library?
1) mod_jk uses the protocol AJP
2) On the Tomcat side, there is a pure Java AJP connector, and a native
one (called APR connector). You can choose.
3) Most likly (?) Tony meant "from mod_proxy_ajp" to mod_jk", although I
would not expect a big performance difference between those two.
The biggest difference between mod_jk and
mod_proxy_ajp/mod_proxy_balancer at the moment in my opinion is
- mod_jk gets released more often because it's independantly released,
so it's easier for us to add features and fix bugs
- mod_jk has more options to handle more complicated backend topologies
- mod_proxy_* is easier to understand for simple configurations
- mod_proxy_* has the advantage of automatically being installed on
nearly all systems which have Apache httpd 2.2.
Regards,
Rainer
> ~Charlie
>
>
> The significant problems we have cannot be solved at the same level
> of thinking with which we created them. - Albert Einstein
>
> -----Original Message----- From: Tony Anecito
> [mailto:adanecito@yahoo.com] Sent: Friday, September 28, 2007 12:56
> PM To: Tomcat Users List Subject: Re: Apache connectors for tomcat
>
> I had heard that mod_jk was faster so I switched from ajp to mod_jk
> and sure enough mod_jk was 10% faster for me.
>
> -Tony
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Re: Apache connectors for tomcat
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Tony,
Tony Anecito wrote:
> I heard that mod_jk was based off of ajp so I was
> quite surprised mod_jk was faster.
Yes, mod_jk does use the AJP protocol. Why were you surprised that it
was faster? With what are you comparing it?
- -chris
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RE: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
Hi Charlie,
I heard that mod_jk was based off of ajp so I was
quite surprised mod_jk was faster. Not sure how to
answer your question regarding the native runtime
library since all I did was download the module file
for mod_jk and comment out the ajp proxy module.
Regards,
-Tony
--- Charlie Wingate <cw...@valco-data.com> wrote:
> I'm confused.....Doesn't mod_jk use ajp1.3 on the
> tomcat side? Was that
> with or without the native runtime library?
>
> ~Charlie
>
>
> The significant problems we have cannot be solved at
> the same level of
> thinking with which we created them.
> - Albert Einstein
>
> -----Original Message-----
> From: Tony Anecito [mailto:adanecito@yahoo.com]
> Sent: Friday, September 28, 2007 12:56 PM
> To: Tomcat Users List
> Subject: Re: Apache connectors for tomcat
>
> I had heard that mod_jk was faster so I switched
> from
> ajp to mod_jk and sure enough mod_jk was 10% faster
> for me.
>
> -Tony
>
> --- Christopher Schultz
> <ch...@christopherschultz.net>
> wrote:
>
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > Filip,
> >
> > Filip Hanik - Dev Lists wrote:
> > > personal preference in this order
> > >
> > > mod_proxy_http, mod_jk, mod_proxy_ajp
> >
> > I'm interested: why choose mod_proxy_http over
> > mod_jk?
> >
> > - -chris
> >
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.7 (MingW32)
> > Comment: Using GnuPG with Mozilla -
> > http://enigmail.mozdev.org
> >
> >
>
iD8DBQFG/SZ19CaO5/Lv0PARAsm5AJ47ndEuIqfmT9LHA27Kl17MI13lhgCggyzy
> > UVl1HP68RySRkjuxjAKBb9M=
> > =rFt2
> > -----END PGP SIGNATURE-----
> >
> >
>
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>
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>
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RE: Apache connectors for tomcat
Posted by Charlie Wingate <cw...@valco-data.com>.
I'm confused.....Doesn't mod_jk use ajp1.3 on the tomcat side? Was that
with or without the native runtime library?
~Charlie
The significant problems we have cannot be solved at the same level of
thinking with which we created them.
- Albert Einstein
-----Original Message-----
From: Tony Anecito [mailto:adanecito@yahoo.com]
Sent: Friday, September 28, 2007 12:56 PM
To: Tomcat Users List
Subject: Re: Apache connectors for tomcat
I had heard that mod_jk was faster so I switched from
ajp to mod_jk and sure enough mod_jk was 10% faster
for me.
-Tony
--- Christopher Schultz <ch...@christopherschultz.net>
wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Filip,
>
> Filip Hanik - Dev Lists wrote:
> > personal preference in this order
> >
> > mod_proxy_http, mod_jk, mod_proxy_ajp
>
> I'm interested: why choose mod_proxy_http over
> mod_jk?
>
> - -chris
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.7 (MingW32)
> Comment: Using GnuPG with Mozilla -
> http://enigmail.mozdev.org
>
>
iD8DBQFG/SZ19CaO5/Lv0PARAsm5AJ47ndEuIqfmT9LHA27Kl17MI13lhgCggyzy
> UVl1HP68RySRkjuxjAKBb9M=
> =rFt2
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Re: Apache connectors for tomcat
Posted by Filip Hanik - Dev Lists <de...@hanik.com>.
Christopher Schultz wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Filip,
>
> Filip Hanik - Dev Lists wrote:
>
>> personal preference in this order
>>
>> mod_proxy_http, mod_jk, mod_proxy_ajp
>>
>
> I'm interested: why choose mod_proxy_http over mod_jk?
>
ease of configuration, no API nor configuration incompatibilities
between dot (.) releases, text protocol, easier to debug, better socket
handling (uses APR), ability to use smart load balancing (through
appliances in between) since it uses the HTTP protocol(otherwise you can
just LB TCP sessions),....
speed difference has been so small, that it doesn't outweigh the other pros.
again, just personal opionions
Filip
> - -chris
>
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> Version: GnuPG v1.4.7 (MingW32)
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>
> iD8DBQFG/SZ19CaO5/Lv0PARAsm5AJ47ndEuIqfmT9LHA27Kl17MI13lhgCggyzy
> UVl1HP68RySRkjuxjAKBb9M=
> =rFt2
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Re: Apache connectors for tomcat
Posted by Tony Anecito <ad...@yahoo.com>.
I had heard that mod_jk was faster so I switched from
ajp to mod_jk and sure enough mod_jk was 10% faster
for me.
-Tony
--- Christopher Schultz <ch...@christopherschultz.net>
wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Filip,
>
> Filip Hanik - Dev Lists wrote:
> > personal preference in this order
> >
> > mod_proxy_http, mod_jk, mod_proxy_ajp
>
> I'm interested: why choose mod_proxy_http over
> mod_jk?
>
> - -chris
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.7 (MingW32)
> Comment: Using GnuPG with Mozilla -
> http://enigmail.mozdev.org
>
>
iD8DBQFG/SZ19CaO5/Lv0PARAsm5AJ47ndEuIqfmT9LHA27Kl17MI13lhgCggyzy
> UVl1HP68RySRkjuxjAKBb9M=
> =rFt2
> -----END PGP SIGNATURE-----
>
>
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Re: Apache connectors for tomcat
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Filip,
Filip Hanik - Dev Lists wrote:
> personal preference in this order
>
> mod_proxy_http, mod_jk, mod_proxy_ajp
I'm interested: why choose mod_proxy_http over mod_jk?
- -chris
-----BEGIN PGP SIGNATURE-----
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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFG/SZ19CaO5/Lv0PARAsm5AJ47ndEuIqfmT9LHA27Kl17MI13lhgCggyzy
UVl1HP68RySRkjuxjAKBb9M=
=rFt2
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Re: Apache connectors for tomcat
Posted by Filip Hanik - Dev Lists <de...@hanik.com>.
personal preference in this order
mod_proxy_http, mod_jk, mod_proxy_ajp
rahul wrote:
> Hi,
> Which is the recommended connector for Apache now?
> mod_jk or mod_proxy_ajp (with balancer) ?
>
> rahul
> --
> 1. e4 _
>
>
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