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From Apache Wiki <>
Subject [Incubator Wiki] Update of "WadiProposal" by jgenender
Date Fri, 18 Nov 2005 15:19:00 GMT
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The following page has been changed by jgenender:

New page:
= Proposal for WADI (Web Application Distribution Infrastructure) to Join Geronimo =

= Section 0 : Rationale =
Achieving software infrastructure scalability is a tenet of Return on Investment (ROI) for
any IT infrastructure and usually takes place in two forms: vertical scalability and horizontal
scalability. Vertical addresses the scalability within the software itself whereas horizontal
deals with it from the amount of hardware that can be utilized. Clustering, load balancing
and failover is a necessity for any application server to be taken seriously in the enterprise
in terms of scalability. Without the ability to cluster the application server, vertical scalability
cannot take place. Without such vertical scalability, applications built on top of it can
only be scaled horizontally. In order to make Geronimo more enterprise ready, it needs to
provide such vertical scalability.

WADI is a clustering, load balancing and failover solution for the web application container
tier. It currently supports both Jetty and Tomcat and plans are currently afoot to add full
J2EE clustering functionality. WADI will help Geronimo to achieve vertical scalability.

== Section 0.1 : Criteria ==
We believe that this project has a continued probability of success at the ASF under the guidance
of the Geronimo PMC. WADI already has a code base and a group of committers. The following
considerations have gone into this line of thinking:

a) Meritocracy: The project will be meritocratic - the usual Apache meritocracy rules would

b) Community: The initial developer community will consist of the current WADI committers
as well as the existing Geronimo developer community. The need for a full service clustering
and caching component in the open source is tremendous as its use can be applied in many areas,
thus providing the potential for an incredibly large community. In addition, as the project
is integrated with Geronimo, we expect this community to grow immensely.

c) Core Developers: WADI was founded by Jules Gosnell in 2004, it now has a strong base of
developers from Geronimo, Castor, OpenEJB, Mojo, Jetty, ActiveCluster, ActiveMQ, and ServiceMix.

d) Alignment: The alignment of WADI with Geronimo is only one offering. WADI will also align
nicely with Tomcat and very likely other projects at the ASF. The need for WADI should allow
for powerful alignment in nearly any server based offering in Apache that requires high availability.

e) License: WADI already utilizes the Apache License 2.0.

== Section 0.2 : Warning Signs ==
a) Orphaned Software: WADI contains no software that was abandoned and the developers on the
project have no intentions of leaving the project behind at the ASF.

b) Experience With Open Source: Most of the comitters have a proven track record in open source.

c) Homogenous Developers: WADI's developers are currently all over the world, including the
UK, US, and France. There are developers from various companies: Core Developer's Network,
Jailey Solutions, Virtuas, Gordon Technologies, Savoir Technologies, Mortbay, and Quativa.

d) Reliance on salaried developers: All committers are a part of WADI due to their interest
in producing a clustering component. This project does not rely on 9-5-only workers who are
paid soley to work on WADI.

e) No Ties to Other Apache Products: WADI already provides clustering and high availability
to the Tomcat and Jetty projects and will be providing the same thing for OpenEJB and the
Geronimo project.

f) Achieving the Apache Brand is a Prominent Goal: WADI shares a set of common goals with
the ASF and it is already licensed using the Apache License 2.0. The developer base agrees
that joining the ASF will help the project continue to flourish and grow. The ASF model for
growing communities is ideal for WADI. WAID already exercises meritocracy and Apache best

= Section 1 : Scope of the project =
The project is intended to be a subproject of Geronimo but given it's integration already
with Tomcat, it could certainly be made more widely available. As stated above, WADI already
works with Jetty and Tomcat. The current best location for WADI is with Geronimo to get full
integration into that project.

= Section 2 : Initial source from which the project is to be populated =
The initial source code will come from a subset of the code from the WADI project at Codehaus

= Section 3: Identify the ASF resources to be created =

== Section 3.1 : Mailing Lists ==

 * wadi-dev
 * wadi-ppmc
 * wadi-user

== Section 3.2: SVN Repositories ==

 * wadi

== Section 3.3: Issue Tracking ==


= Section 4: Identify the Initial Set of Committers =

== ASF Committers ==
 * Bill Dudney (MyFaces)
 * Bruce Snyder (Castor, Geronimo PMC, ServiceMix, TranQL)
 * Jan Bartell (Geronimo PMC, Jetty)
 * Greg Wilkins (Geronimo PMC, Jetty)
 * James Strachan (Geronimo PMC, ActiveCluster, ActiveMQ, ServiceMix, ...)
 * Jeff Genender (Geronimo PMC, OpenEJB, ServiceMix, Mojo)
 * Jules Gosnell (Geronimo PMC, Jetty)

== Non-ASF Committers ==
 * Gianni Scenini
 * James Goodwill

= Section 5: Identify ASF Sponsor =
The Champions will be James Strachan and Geir Magnusson and the sponsor for Incubation will
be the Geronimo PMC.

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