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From Daniel Dai <>
Subject [VOTE] accept SAMOA into incubator
Date Thu, 11 Dec 2014 18:02:03 GMT
Following the discussion earlier, I'm calling a vote to accept SAMOA as a
new Incubator project.

[ ] +1 Accept SAMOA into the Incubator
[ ] +0 Indifferent to the acceptance of SAMOA
[ ] -1 Do not accept SAMOA because ...

The vote will be open for at least 72h and closes at the earliest on Dec 14
19:00 GMT.


== Abstract ==
SAMOA is an an open-source platform for mining big data streams.

== Proposal ==
SAMOA provides a collection of distributed streaming algorithms for the
most common data mining and machine learning tasks such as classification,
clustering, and regression, as well as programming abstractions to develop
new algorithms that run on top of distributed stream processing engines
(DSPEs). It features a pluggable architecture that allows it to run on
several DSPEs such as Apache Storm, Apache S4, and Apache Samza.

== Background ==
Hadoop and its ecosystem have changed the way data are processed by
allowing to push algorithms to unprecedented scale. As an example, Mahout
allows to run data mining and machine learning algorithms on very large
datasets. However, Hadoop and Mahout are not suited to handle streaming
data. Simply put, the goal of SAMOA is to provide a streaming counterpart
to Mahout.

== Rationale ==
SAMOA aims to fill the current gap in tools for mining large scale streams.
Many organizations can benefit from a scalable stream mining platform
system such as SAMOA.

SAMOA is a natural fit for the Apache Software Foundation. It is licensed
under the ASL v2.0. It already interoperates with several existing Apache
projects such as Storm, S4, and Samza. Furthermore, it is complementary to
existing Apache projects such as Mahout. The initial committers are
familiar with the Apache process and subscribes to the Apache mission.
Indeed, the team includes multiple Apache committers. Finally, joining
Apache will help coordinate the development effort of the growing number of
organizations which contribute to SAMOA.

== Initial Goals ==
* Move the existing codebase to Apache
* Integrate with the Apache development process
* Incremental development and releases per Apache guidelines

== Current Status ==
SAMOA started as a research project at Yahoo Labs in 2013 and was
open-sourced in October the same year. It has been under development on
Yahoo's public GitHub repository since being open-sourced. It has undergone
two releases (0.1, 0.2).

=== Meritocracy ===
The SAMOA project already operates on meritocratic principles. Today, SAMOA
has several developers and has accepted multiple patches from outside of
Yahoo Labs. However, our intent with this incubator proposal is to start
building a more diverse developer community around SAMOA that follows the
Apache meritocracy model. We will identify all committers and PPMC members
for the project operating under the ASF meritocratic principles. We plan to
continue support for new contributors and work with those who contribute
significantly to the project to make them committers.

=== Community ===
SAMOA is currently being used internally at Yahoo. Acceptance into the
Apache foundation would bolster the existing user and developer community
around SAMOA. That community includes contributors from several
institutions, active mostly on GitHub's pages. SAMOA has been starred more
than 300 times and forked more than 50 times on GitHub as of November 2014.

=== Core Developers ===
The core developers are a diverse group, many of which already very
experienced with open source. There are two existing Apache committers,
along with people from various companies and universities.

=== Alignment ===
The ASF is the natural choice to host SAMOA. First, its goal of encouraging
community-driven open-source projects fits with our vision for SAMOA.
Additionally, many other projects that SAMOA is based on, such as Apache
Storm, S4, Samza, and HDFS, are hosted by the ASF. Close proximity of SAMOA
to these projects within the ASF will provide mutual benefit.

== Known Risks ==
=== Orphaned Products ===
Given the current level of investment in SAMOA the risk of the project
being abandoned is minimal. There are several constituents who are highly
incentivized to continue development, and Yahoo Labs relies on SAMOA as a
platform for a large number of long-term research projects. However, the
small number of initial committers might be a concern. We plan to address
this issue during incubation by growing the community and the number of

=== Inexperience with Open Source ===
SAMOA has existed as a healthy open source project for one year. During
this time, we have curated an open-source community successfully,
attracting developers from a diverse group of universities and companies
including Huawei, Yahoo, University of Porto, and Universitat Politecnica
de Catalunya.

Gianmarco is a committer for Apache Pig, Matthieu for Apache S4. Albert is
one of the lead developers of MOA, an open-source tool for streaming
machine learning.

=== Homogenous Developers ===
The initial list of committers includes developers from several
institutions, both academic and industrial. The committers are
geographically distributed across Europe, America, and Asia.

=== Reliance on Salaried Developers ===
Like most open source projects, SAMOA receives a substantial support from
salaried developers. In addition, those working from within corporations
often devote “after hours” or spare time in the project - and these come
from several organizations. We will work to ensure the ability for the
project to continuously be stewarded and to proceed forward independently
of salaried developers.

=== Relationship with Other Apache Products ===
SAMOA interoperates with several existing Apache projects, mainly by using
them as stream processing engines: Apache Storm, Apache S4, and Apache
Samza. It is a counterpart of Apache Mahout for streaming. It also uses
several other Apache components, including Apache Maven and several Apache
Commons libraries.

=== A Excessive Fascination with the Apache Brand ===
SAMOA is already a healthy and relatively well known open source project.
This proposal is not for the purpose of generating publicity. Rather, the
primary benefits to joining Apache are those outlined in the Rationale
section. We are more interested in establishing a strong community that can
drive the project independently of Yahoo.

== Documentation ==
The reader will find these websites relevant:

* SAMOA website:
* SAMOA documentation:
* Issue tracking:
* Codebase:
* User group:

== Initial Source ==
The SAMOA codebase is currently hosted on GitHub: This is the exact codebase that we would
migrate to the Apache foundation.

== Source and Intellectual Property Submission Plan ==
Currently, the SAMOA codebase is distributed under an Apache license v2.0.
The vast majority of code has copyright held by Yahoo. Upon entering the
Incubator, Yahoo will grant a license to the Apache foundation. In certain
cases where individuals or organizations hold copyright, we will ensure
they grant a license to the Apache foundation. Going forward, all commits
will be licensed directly to the Apache foundation through our signed
Individual Contributor License Agreements for all committers on the project.

== Cryptography ==
We do not expect SAMOA to be a controlled export item due to the use of

== External Dependencies ==
To the best of our knowledge, all dependencies of SAMOA are distributed
under Apache compatible licenses. Upon acceptance to the incubator, we
would begin a thorough analysis of all transitive dependencies to verify
this fact and introduce license checking into the build and release process
(for instance integrating Apache Rat).

== Required Resources ==
=== Mailing Lists ===
We will migrate the existing SAMOA mailing lists as follows:

* samoa-users@googlegroups -->
* samoa-developers@googlegroups -->

SAMOA commits are hosted on GitHub, so we would request the following
mailing list:


We would also request the following mailing list:

* (with moderated subscription)

=== Source control ===
The SAMOA team would like to use Git for source control, due to our current
use of Git. We request a writeable Git repo for SAMOA, and mirroring to be
set up to GitHub through INFRA.


=== Issue Tracking ===
SAMOA currently uses GitHub for issue tracking. We will migrate to the
Apache JIRA instance.

== Initial Committers & Affiliations ==
* Albert Bifet, Huawei, <abifet at waikato dot ac dot nz>
* Gianmarco De Francisci Morales, Yahoo Labs, <gdfm at apache dot org>
* Nicolas Kourtellis, Yahoo Labs, <nkourtellis at gmail dot com>
* Matthieu Morel, Yahoo Labs, <mmorel at apache dot org>
* Arinto Murdopo, Living Analytics Research Centre, <arintom at smu dot edu
dot sg>
* Olivier Van Laere, BlueShift Labs, <olivier at getblueshift dot com>

== Sponsors ==
=== Champion ===
* Daniel Dai <daijy at apache dot org>

=== Nominated Mentors ===
* Alan Gates <gates at apache dot org>
* Ted Dunning <tdunning at apache dot org>
* Ashutosh Chauhan <hashutosh at apache dot org>
* Enis Soztutar <enis at apache dot org>

=== Sponsoring Entity ===
The Apache Incubator

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