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From Roman Shaposhnik <>
Subject [VOTE] Accept Zeppelin into the Apache Incubator
Date Fri, 19 Dec 2014 05:29:17 GMT
Following the discussion earlier:

I would like to call a VOTE for accepting
Zeppelin as a new Incubator project.

The proposal is available at:
and is also attached to the end of this email.

Vote is open until at least Sunday, 21th December 2014,
23:59:00 PST

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


== Abstract ==
Zeppelin is a collaborative data analytics and visualization tool for
distributed, general-purpose data processing systems such as Apache
Spark, Apache Flink, etc.

== Proposal ==
Zeppelin is a modern web-based tool for the data scientists to
collaborate over large-scale data exploration and visualization
projects. It is a notebook style interpreter that enable collaborative
analysis sessions sharing between users. Zeppelin is independent of
the execution framework itself. Current version runs on top of Apache
Spark but it has pluggable interpreter APIs to support other data
processing systems. More execution frameworks could be added at a
later date i.e Apache Flink, Crunch as well as SQL-like backends such
as Hive, Tajo, MRQL.

We have a strong preference for the project to be called Zeppelin. In
case that may not be feasible, alternative names could be: “Mir”,
“Yuga” or “Sora”.

== Background ==
Large scale data analysis workflow includes multiple steps like data
acquisition, pre-processing, visualization, etc and may include
inter-operation of multiple different tools and technologies. With the
widespread of the open source general-purpose data processing systems
like Spark there is a lack of open source, modern user-friendly tools
that combine strengths of interpreted language for data analysis with
new in-browser visualization libraries and collaborative capabilities.

Zeppelin initially started as a GUI tool for diverse set of
SQL-over-Hadoop systems like Hive, Presto, Shark, etc. It was open
source since its inception in Sep 2013. Later, it became clear that
there was a need for a greater web-based tool for data scientists to
collaborate on data exploration over the large-scale projects, not
limited to SQL. So Zeppelin integrated full support of Apache Spark
while adding a collaborative environment with the ability to run and
share interpreter sessions in-browser

== Rationale ==
There are no open source alternatives for a collaborative
notebook-based interpreter with support of multiple distributed data
processing systems.

As a number of companies adopting and contributing back to Zeppelin is
growing, we think that having a long-term home at Apache foundation
would be a great fit for the project ensuring that processes and
procedures are in place to keep project and community “healthy” and
free of any commercial, political or legal faults.

== Initial Goals ==
The initial goals will be to move the existing codebase to Apache and
integrate with the Apache development process. This includes moving
all infrastructure that we currently maintain, such as: a website, a
mailing list, an issues tracker and a Jenkins CI, as mentioned in
“Required Resources” section of current proposal.
Once this is accomplished, we plan for incremental development and
releases that follow the Apache guidelines.
To increase adoption the major goal for the project would be to
provide integration with as much projects from Apache data ecosystem
as possible, including new interpreters for Apache Hive, Apache Drill
and adding Zeppelin distribution to Apache Bigtop.
On the community building side the main goal is to attract a diverse
set of contributors by promoting Zeppelin to wide variety of
engineers, starting a Zeppelin user groups around the globe and by
engaging with other existing Apache projects communities online.

== Current Status ==
Currently, Zeppelin has 4 released versions and is used in production
at a number of companies across the globe mentioned in Affiliation
section. Current implementation status is pre-release with public API
not being finalized yet. Current main and default backend processing
engine is Apache Spark with consistent support of SparkSQL.
Zeppelin is distributed as a binary package which includes an embedded
webserver, application itself, a set of libraries and startup/shutdown
scripts. No platform-specific installation packages are provided yet
but it is something we are looking to provide as part of Apache Bigtop
Project codebase is currently hosted at, which will form
the basis of the Apache git repository.

=== Meritocracy ===
Zeppelin is an open source project that already leverages meritocracy
principles.  It was started by a handfull of people and now it has
multiple contributors, although as the number of contribution grows we
want to build a diverse developer and user community that is governed
by the "Apache way". Users and new contributors will be treated with
respect and welcomed; they will earn merit in the project by tendering
quality patches and support that move the project forward. Those with
a proven support and quality patch track record will be encouraged to
become committers.

=== Community ===
Zeppelin already has a burgeoning community of users spread across the
world that leverage and contributes to the code base and mailing list.
We hope that being part of Apache Foundation will help to grow it more
and convert some of the users into active contributors to the project.

=== Core Developers ===
The core developers of Zeppelin are listed in our contributors and
initial PPMC below. It is a diverse group of people from two
companies, NFLabs and Between, as mentioned in Affiliations section
including at least one Apache committer and PPMC member, Lee Moon Soo,
of Apache MRQL project.

=== Alignment ===
Zeppelin is already integrated with Apache Spark. Integration with
Apache Tajo and Apache MRQL is something that has been currently
worked on. Apache Flink is a potential next integration step. We also
plan to add a binary distribution of Zeppelin to Apache Bigtop to
align it with whole ASF Hadoop data stack.

== Known Risks ==
We feel that for Zeppelin to become as successful as it can be, it
needs to be picked up by as many back-end systems as possible, not
only Apache Spark.

=== Orphaned Products ===
Initial code contributors were from the same company but in last few
months we see signs of the global adoption, at least 2 more companies
in Europe and US have products based on a Zeppelin codebase. Other
companies use Zeppelin in production for their data analytics
workflows. We believe that this, plus the fact that Zeppelin already
have contributors from different companies mitigates this risk well.

=== Inexperience with Open Source ===
Zeppelin was born as an open source project from scratch. Majority of
the current core contributors have experience working on other open
source projects. We also expect that as we grow the community further
based on meritocracy and with the guidance of more experienced mentors
this will have a positive influence on the project in the long term.

=== Homogenous Developers ===
The initial committers are from same region but there are already 2
companies in the Europe that contribute to Zeppelin and others in US
also reviewing it and being active on the mailing list. We are
committed to create diverse mix of developers from all over the world.

=== Reliance on Salaried Developers ===
Most of the Zeppelin contributors use it as tool of choice either in
their own companies internally or distribute it as part of the
Backend agnostic design helps to keep it as tool of choice for diverse
community of data analysts even if they move from one employee to
There also is at least one university in US with students who
potentially might use Zeppelin for R’n’D projects.

=== Relationship with Other Apache Products ===
Right now Zeppelin relies on Apache Spark to run distributed task
across a cluster of machines, but it’s abstract interpreter design
allows it to work with other systems like Apache MRQL, Apache Crunch
as well as SQL-based systems like Apache Tajo, Apache Hive

=== A Excessive Fascination with the Apache Brand ===
We believe that joining Apache will help us attract more contributors
to Zeppelin, by giving us a well-defined, transparent development and
governance process under a known brand. The reason for this proposal
is not to gain publicity, but to further strengthen the longevity of
the project without affiliation with any particular company. There are
no plans to use of Apache brand in press releases nor posting
advertising of acceptance it into Apache Incubator.

=== Documentation ===
Additional documentation on Zeppelin may be found on its github website:
 * Zeppelin overview:
 * Zeppelin docs:
 * Zeppelin road map:
 * Zeppelin issue tracking:
 * Zeppelin codebase:
 * User group:

== Initial Source ==
Zeppelin codebase is currently hosted on Github:

=== Source and Intellectual Property Submission Plan ===
Currently, the Zeppleing codebase is distributed under an Apache 2.0 License.

== External Dependencies ==
To the best of our knowledge, all other dependencies of Zeppelin are
distributed under Apache compatible licenses (e.g. junit is EPL,
Eclipse Public License v1.0, atmosphere-jersey is CDDL1.0  and
dom4j:dom4 is BSD licensed, org.slf4j and are MIT).
Only org.reflections:reflections is WTFPL 2.0, which should not
be a problem as of
Upon acceptance to the incubator, we would begin a thorough analysis
of all transitive dependencies to verify this information and
introduce license checking into the build and release process by
integrating with Apache Rat.

== Required Resources ==
=== Mailing list ===
We will migrate the existing Zeppelin mailing lists as follows:
 * -->
 * for PPMC members
The latter is to be consistent with the new PIAO naming scheme for podlings.

=== Source control ===
Zeppelin team would like to use Git for source control, as it already
uses Git. We request a writeable Git repo for Zeppelin, and mirroring
to be set up to Github through INFRA.

=== Issue Tracking ===
Zeppelin currently uses the Jira tracking system We will
migrate to the Apache JIRA:

=== Other Resources ===
 * Jenkins/Hudson for builds and test running.
 * Wiki for documentation purposes
 * Blog to improve project dissemination

== Initial Committers ==
 * Lee Moon Soo <moon at apache dot org>
 * Anthony Corbacho <corbacho.anthony at gmail dot com>, CLA submitted
 * Damien Corneau <corneadoug at gmail dot com>, CLA submitted
 * Alexander Bezzubov <abezzubov at nflabs dot com>, CLA confirmed
 * Kevin Sangwoo Kim <sangwookim dot me at gmail dot us>, CLA confirmed

== Affiliations ==
 * Lee Moon Soo: NFLabs
 * Anthony Corbacho: NFLabs
 * Damien Corneau: NFLabs
 * Alexander Bezzubov: NFLabs
 * Kevin Sangwoo Kim: VCNC (a.k.a Between)

== Sponsors ==
=== Champion ===
 * Roman Shaposhnik

=== Nominated Mentors ===
 * Konstantin Boudnik
 * Ted Dunning
 * Henry Saputra
 * Roman Shaposhnik
 * Hyunsik Choi

=== Sponsoring Entity ===
 The Apache Incubator

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