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From "Guernsey, Byron \(GE Consumer & Industrial\)" <BYRON.GUERN...@GE.COM>
Subject RE: People still using v1.3 - finding out why
Date Fri, 19 Nov 2004 19:10:03 GMT

We continue to have 1.3 servers because the Enhydra Director module,
needed for Enydra Application Server version 3, has not been ported to
Apache 2.  The reason is that the Enhydra folks have long since
abandoned the protocol and now use AJP13, for which there is already
mod_jk2 and the AJP13 proxy in 2.1.

The obvious solution is to either upgrade Enhydra to a newer version or
move to another app server.  We decided to move to another app server,
but it's a lengthy process when you have 100's of applications written
for the old app server.

To combat the problem, I wrote a patch for Apache 2 to do session cookie
based load balancing in combination with rewrite rules (which I
submitted long ago to this group- but I think it becomes moot in Apache
2.2) and have written scripts which convert our enhydra director config
files over to a set of proxy rewrite rules- so we are attempting to use
the HTTP connector of the enhydra app server.  This has a set of its own
problems- like applications which depend on API's to return the remote
host IP or bugs in the HTTP connector implementation (ie, lack of URL

So enhydra director is the reason we've not been able to dump Apache
1.3; but we have plans to work around our issues and gradually continue
to move to Apache 2.


-----Original Message-----
From: Graham Leggett [] 
Sent: Thursday, November 18, 2004 2:43 PM
Subject: People still using v1.3 - finding out why

Hi all,

I've been keen to do some digging for reasons why someone might need to
install httpd v1.3 instead of v2.0 or later.

Support for mod_backhand seems to be a significant reason (and getting
backhand ported to v2.0 would be a win): Apart from backhand, are there
in the experience of the people on this list any other significant apps
out there that are keeping people from deploying httpd v2.x?


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