Good evening,
As you know, we've been preparing our proposal to submit Traffic Server
to the Incubator for a few weeks now. With the help from our champion
(thanks Doug!), and the entire Incubator community, it's my pleasure to
submit a request for Traffic Server to be accepted into the Incubator.
The proposal is attached below, and is also available on the Wiki:
http://wiki.apache.org/incubator/TrafficServerProposal
Since our first draft, we've added a number of mentors and contributors,
and also added and improved on the proposal. I would like this to be
considered our official application, and that the Incubator votes (+ or
-) on our acceptance as a podling.
Sincerely,
-- leif
Traffic Server
------------------------------------------------------------------------
Abstract
Traffic Server is fast, scalable and extensible HTTP/1.1 compliant
caching proxy server.
Proposal
The goal is to create an Apache top level project to Open Source the
existing Yahoo! Traffic Server code. Traffic Server (TS for short) is
used in-house to deliver significant amount of HTTP traffic to millions
of users.
Key Features:
*
HTTP/1.1 caching proxy server
*
Scalable on SMP (TS is a hybrid thread + event processor)
*
Extensible: TS has a feature rich plugin API
*
Fast
Background
Traffic Server is a piece of software initially acquired by Yahoo! from
Inktomi. The software has been actively developed and used at Yahoo for
the last three years, and we're now getting ready to Open Source this
project.
Rationale
Traffic Server fills a need for a fast, extensible and scalable HTTP
proxy and caching. We have a production proven piece of software that
can deliver HTTP traffic at high rates, and can scale well on modern SMP
hardware. We have benchmarked Traffic Server to handle in excess of
35,000 RPS on a single box. Traffic Server has a rich feature set,
implementing most of HTTP/1.1 to the RFC specifications.
Initial goals
The initial goal is to build a community of developers and users of the
Traffic Server software. Longer term goal is to address a few feature
additions that we think are beneficial:
*
Full 64-bit support
*
Porting to more Unix flavors (currently we only support Linux)
*
Add missing features, e.g., CARP, HTCP, ESI and native IPv6
*
Incremental improvements to existing features, and performance
Current Status
Meritocracy
Building our developer community using the meritocracy is important to
the success of Traffic Server. We know there are many developers out
there interested in the technology, and the meritocracy system is a
great way to encourage participation.
Community
Our hope is that our existing code, features and capabilities will
attract a large community of both developers and users. We know that
several developers who have previously worked on the code, are looking
forward to participating in the Open Source efforts. We also believe
that other organizations will find this project interesting and
relevant, and contribute resources.
The user community of Traffic Server would be similar to that of the
Apache HTTP server, and in many cases they would overlap.
Core Developers
*
Leif Hedstrom <leif at yahoo-inc.com>
*
Bryan Call <bcall at yahoo-inc.com>
*
Vijaya Bhaskar Mamidi <vmamidi at yahoo-inc.com>
*
Steve Jiang <sjiang at yahoo-inc.com>
*
Dima Ruban <dima at yahoo-inc.com>
*
Anirban Kundu <akundu at yahoo-inc.com>
*
Andrew Hsu <andrewhs at yahoo-inc.com>
*
Eric Balsa <eric at ericbalsa.com
*
BalaKrishna <http://wiki.apache.org/incubator/BalaKrishna> JD
<balakrishnajd at yahoo.com>
Alignment
Yahoo! is already a contributor to the Apache Foundation. We are already
familiar with the ASF process, and we know it provides everything we
need and require to be successful. We also feel there is a natural
symbiotic relationship between Traffic Server and the Apache HTTP
server, which is how TS is generally used at Yahoo!. The Traffic Server
team is also in the same organization as the Yahoo! Hadoop developers,
which is already an Apache TLP.
Known Risks
Orphaned Products
Traffic Server is widely used and deployed inside of Yahoo!. It's not
going away anytime soon; in fact, it's growing fast.
Inexperience with Open Source
All Yahoo! participants are active users and contributors to Open Source
projects. Leif is a committer at Mozilla (although no longer active),
creator of PerLDAP, as well as creator of a Yahoo! search API
(pYsearch). Bryan Call is the creator of cksfv, and contributor to
lmsensor. Dima Ruban has been an active developer in the FreeBSD project.
Homogeneous Developers
The current list of committers are mostly members of the Yahoo!
developer team, but we are actively recruiting other developers. The
hope is that we can quickly attract more members, either people just
interested in the technology, or people familiar with the code base from
previous employment.
Reliance on Salaried Developers
Most initial committers are salaried employees of Yahoo!, but we are
actively recruiting non-yahoo team members.
Relationships with Other Apache Products
Traffic Server integrates well with the Apache HTTP daemon, as a proxy
and cache.
An excessive fascination with the Apache brand
Our decision to apply to the ASF is simple. Y! has already contributed
several projects to the ASF, and the Apache collaboration model and
license further Yahoo!'s goals.
Trade Mark
Traffic Server is currently a trademark owned by Yahoo! in four
jurisdictions: Australia, Japan, Norway and the United States. The
registrations in Japan and the U.S. are set to expire this year (2009).
The registration in Australia is set to expire at the end of May 2010.
That leaves the registration in Norway which is set to expire in March
2019.
Two proposals are on the table: The first solution is to simply assign
all rights, title and interest in and to the TRAFFIC SERVER mark
including the four active registrations to ASF (though we'd probably
want to make this contingent on TS graduating from the incubator). Our
second possible option is to provide ASF with a letter of assurance
stating that we own all right, title and interest in and to the TRAFFIC
SERVER mark and the four active registrations and that we will not take
any action against ASF or any of its licensees during the life of these
registrations (and we'd express our intention of letting them lapse and
expire).
Documentation
TS comes with both an Administration Guide and a Developer Guide. Work
will begin soon to improve this documentation, and the hope is to move
it to our podling web site once activated.
Initial Source
All code is currently in-house at Yahoo!, and we're working on getting
it cleaned up and cleared to be uploaded to the Apache SVN servers.
Source and Intellectual Property Submission Plan
All TS code is fully owned by Yahoo! Inc, and we're finalizing all the
legal paperwork around releasing it as Open Source, under the Apache
license. We've hired an external company to do full code review of all
source files, to assure it's not tainted. The sanitized code of Yahoo!
Traffic Server would become the Apache Traffic Server.
External Dependencies
Traffic Server has no external dependencies, other than standard
libraries like BDB, OpenSSL, TCL, STL, glibc and expat.
Cryptography
Traffic Server uses OpenSSL to implement HTTPS support. There is no
other cryptographic code in the source tree.
Required Resources
Mailing lists
*
trafficserver-private (with moderated subscriptions)
*
trafficserver-dev
*
trafficserver-commits
*
trafficserver-user
Subversion Directory
[WWW] https://svn.apache.org/repos/asf/incubator/trafficserver
Issue Tracking
Bugzilla: Traffic Server
Initial Committers
We have two categories of committers: TS code developers and
contributors working primarily on documentation and community
development. Everyone below would need initial committers privileges.
Yahoo developers:
*
Leif Hedstrom <leif at yahoo-inc.com>
*
Bryan Call <bcall at yahoo-inc.com>
*
Vijaya Bhaskar Mamidi <vmamidi at yahoo-inc.com>
*
Steve Jiang <sjiang at yahoo-inc.com>
*
Dima Ruban <dima at yahoo-inc.com>
*
Anirban Kundu <akundu at yahoo-inc.com>
*
Andrew Hsu <andrewhs at yahoo-inc.com>
Non-Yahoo developers:
*
Eric Balsa <eric at ericbalsa.com>
*
BalaKrishna <http://wiki.apache.org/incubator/BalaKrishna> JD
<balakrishnajd at yahoo.com>
Product management, documentation and community support:
*
Miles Libbey <mlibbeymail-apache at yahoo.com>
*
Ray Rivera <rayriver @ yahoo-inc.com>
Affiliations
Many of the initial developers are employed by Yahoo!. Yahoo! is also an
active user of the Traffic Server software.
Sponsors
Champion
*
Doug Cutting <dcutting at yahoo-inc.com>
Nominated Mentors
*
Doug Cutting
*
Jim Jagielski
*
Jean-Frederic Clere
*
Mladen Turk
*
Nick Kew
Sponsoring Entity
*
The Apache Incubator
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