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Date: Sat, 17 May 2014 10:26:12 -0700
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Subject: Re: [PROPOSAL] Parquet
From: Chris Aniszczyk <caniszczyk@gmail.com>
To: general@incubator.apache.org
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Your request about the user list seems fine, no need to have multiple lists
atm IMHO.

The proposal has been updated accordingly, thanks!
https://wiki.apache.org/incubator/ParquetProposal?action=recall&rev=21


On Sat, May 17, 2014 at 9:33 AM, Henry Saputra <henry.saputra@gmail.com>wrote:

> Chris, could you please address my concern about user@ list
>
> - Henry
>
> On Fri, May 16, 2014 at 4:43 PM, Chris Aniszczyk <caniszczyk@gmail.com>
> wrote:
> > SGTM Roman, thanks for volunteering!
> >
> > I'll start the vote on Sunday barring any issues.
> >
> >
> > On Fri, May 16, 2014 at 11:56 AM, Roman Shaposhnik <rvs@apache.org>
> wrote:
> >
> >> Hi!
> >>
> >> proposal looks good to me and I am very much looking
> >> for a voting thread.
> >>
> >> One small request, since I plan to spend a fair amount
> >> of time on Parquet anyway, would you guys be ok
> >> with adding me as an extra mentor so I can help
> >> with that aspect of the project as well?
> >>
> >> Thanks,
> >> Roman.
> >>
> >> P.S. Plus it has an added benefit of increasing diversity
> >> of affiliations from the get go.
> >>
> >> On Mon, May 12, 2014 at 10:02 AM, Chris Aniszczyk <caniszczyk@gmail.com
> >
> >> wrote:
> >> > We would like to propose Parquet as an Apache Incubator project.
> >> > https://wiki.apache.org/incubator/ParquetProposal
> >> >
> >> > Feel free to comment, we'll go for a vote in a week or two or whenever
> >> > consensus has been reached on the proposal.
> >> >
> >> > I've posted posted the text of the proposal below:
> >> >
> >> > == Abstract ==
> >> > Parquet is a columnar storage format for Hadoop.
> >> >
> >> > == Proposal ==
> >> >
> >> > We created Parquet to make the advantages of compressed, efficient
> >> columnar
> >> > data representation available to any project in the Hadoop ecosystem,
> >> > regardless of the choice of data processing framework, data model, or
> >> > programming language.
> >> >
> >> > == Background ==
> >> >
> >> > Parquet is built from the ground up with complex nested data
> structures
> >> in
> >> > mind, and uses the repetition/definition level approach to encoding
> such
> >> > data structures, as popularized by Google Dremel (
> >> > https://blog.twitter.com/2013/dremel-made-simple-with-parquet). We
> >> believe
> >> > this approach is superior to simple flattening of nested name spaces.
> >> >
> >> > Parquet is built to support very efficient compression and encoding
> >> > schemes. Parquet allows compression schemes to be specified on a
> >> per-column
> >> > level, and is future-proofed to allow adding more encodings as they
> are
> >> > invented and implemented. We separate the concepts of encoding and
> >> > compression, allowing parquet consumers to implement operators that
> work
> >> > directly on encoded data without paying decompression and decoding
> >> penalty
> >> > when possible.
> >> >
> >> > == Rationale ==
> >> >
> >> > Parquet is built to be used by anyone. We believe that an efficient,
> >> > well-implemented columnar storage substrate should be useful to all
> >> > frameworks without the cost of extensive and difficult to set up
> >> > dependencies.
> >> >
> >> > Furthermore, the rapid growth of Parquet community is empowered by
> open
> >> > source. We believe the Apache foundation is a great fit as the
> long-term
> >> > home for Parquet, as it provides an established process for
> >> > community-driven development and decision making by consensus. This is
> >> > exactly the model we want for future Parquet development.
> >> >
> >> > == Initial Goals ==
> >> >
> >> > * Move the existing codebase to Apache
> >> > * Integrate with the Apache development process
> >> > * Ensure all dependencies are compliant with Apache License version
> 2.0
> >> > * Incremental development and releases per Apache guidelines
> >> >
> >> > == Current Status ==
> >> >
> >> > Parquet has undergone 2 major releases:
> >> > https://github.com/Parquet/parquet-format/releases of the core format
> >> and
> >> > 22 releases: https://github.com/Parquet/parquet-mr/releases of the
> >> > supporting set of Java libraries.
> >> >
> >> > The Parquet source is currently hosted at GitHub, which will seed the
> >> > Apache git repository.
> >> >
> >> > === Meritocracy ===
> >> >
> >> > We plan to invest in supporting a meritocracy. We will discuss the
> >> > requirements in an open forum. Several companies have already
> expressed
> >> > interest in this project, and we intend to invite additional
> developers
> >> to
> >> > participate. We will encourage and monitor community participation so
> >> that
> >> > privileges can be extended to those that contribute.
> >> >
> >> > === Community ===
> >> >
> >> > There is a large need for an advanced columnar storage format for
> Hadoop.
> >> > Parquet is being used in production by many organizations (see
> >> > https://github.com/Parquet/parquet-mr/blob/master/PoweredBy.md)
> >> >
> >> >  * Cloudera: https://twitter.com/HenryR/statuses/324222874011451392
> >> >  * Criteo: https://twitter.com/julsimon/statuses/312114074911666177
> >> >  * Salesforce:
> >> https://twitter.com/TwitterOSS/statuses/392734610116726784
> >> >  * Stripe: https://twitter.com/avibryant/statuses/391339949250715648
> >> >  * Twitter: https://twitter.com/J_/statuses/315844725611581441
> >> >
> >> > By bringing Parquet into Apache, we believe that the community will
> grow
> >> > even bigger.
> >> >
> >> > === Core Developers ===
> >> >
> >> > Parquet was initially developed as a collaboration between Twitter,
> >> > Cloudera and Criteo.
> >> >
> >> > See
> >> >
> >>
> https://blog.twitter.com/2013/announcing-parquet-10-columnar-storage-for-hadoop
> >> >
> >> > === Alignment ===
> >> >
> >> > We believe that having Parquet at Apache will help further the growth
> of
> >> > the big-data community, as it will encourage cooperation within the
> >> greater
> >> > ecosystem of projects spawned by Apache Hadoop. The alignment is also
> >> > beneficial to other Apache communities (such as Hadoop, Hive, Avro).
> >> >
> >> > == Known Risks ==
> >> >
> >> > === Orphaned Products ===
> >> >
> >> > The risk of the Parquet project being abandoned is minimal. There are
> >> many
> >> > organizations using Parquet in production, including Twitter,
> Cloudera,
> >> > Stripe, and Salesforce (
> >> > http://blog.cloudera.com/blog/2013/10/parquet-at-salesforce-com/).
> >> >
> >> > === Inexperience with Open Source ===
> >> >
> >> > Parquet has existed as a healthy open source for one year. During that
> >> > time, we have curated an open-source community successfully,
> attracting
> >> > over 40 contributors (see
> >> > https://github.com/Parquet/parquet-mr/graphs/contributors) from a
> >> diverse
> >> > group of companies.
> >> > Several of the core contributors to the project are deeply familiar
> with
> >> > OSS and Apache specifically: Julien Le Dem is the current PMC Chair
> for
> >> > Apache Pig, and Dmitriy Ryaboy, Aniket Mokashi, and Jonathan Coveney
> are
> >> > also Apache Pig committers with contributions to several other Apache
> >> > projects. Todd Lipcon and Tom White are committers to Apache Hadoop
> and
> >> > multiple other related projects. Brock Noland is a Hive committer.
> >> >
> >> > === Homogenous Developers ===
> >> >
> >> > The initial committers come from a number of companies and countries.
> >> > Parquet has an active community of developers, and we are committed to
> >> > recruiting additional committers based on their contributions to the
> >> > project. The java library component alone has contributions from 31
> >> > individual github accounts, 14 of which contributed over 1000 lines of
> >> code.
> >> >
> >> > === Reliance on Salaried Developers ===
> >> >
> >> > It is expected that Parquet development will occur on both salaried
> time
> >> > and on volunteer time, after hours. The majority of initial committers
> >> are
> >> > paid by their employers to contribute to this project. However, they
> are
> >> > all passionate about the project, and we are confident that the
> project
> >> > will continue even if no salaried developers contribute to the
> project.
> >> As
> >> > evidence of this statement, we present the GitHub punchcard (see
> >> > https://github.com/Parquet/parquet-mr/graphs/punch-card) showing
> that a
> >> lot
> >> > of activity happens on weekends. We are committed to recruiting
> >> additional
> >> > committers including non-salaried developers.
> >> >
> >> > === Relationships with Other Apache Products ===
> >> >
> >> > As mentioned in the Alignment section, Parquet is closely related to
> >> > Hadoop, Pig, Avro, Thrift, YARN and Mesos in a numerous ways. We look
> >> > forward to collaborating with those communities, as well as other
> Apache
> >> > communities (including Apache S4 which focuses on stateful low-latency
> >> > processing).
> >> >
> >> > === An Excessive Fascination with the Apache Brand ===
> >> >
> >> > Parquet is an already healthy and 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.
> >> >
> >> > == Documentation ==
> >> >
> >> > Documentation is currently located as README markdown files:
> >> >
> >> > * https://github.com/Parquet/parquet-format
> >> > * https://github.com/Parquet/parquet-mr
> >> >
> >> > == Source and Intellectual Property Submission Plan ==
> >> >
> >> > The Parquet codebase is currently hosted on Github:
> >> > https://github.com/Parquet.
> >> >
> >> > This is the exact codebase that we would migrate to the Apache
> >> foundation.
> >> >
> >> > == External Dependencies ==
> >> >
> >> >  * Junit: EPL
> >> >  * Apache Commons: ALv2
> >> >  * Apache Thrift: ALv2
> >> >  * Apache Maven: ALv2
> >> >  * Apache Avro: ALv2
> >> >  * Apache Hadoop: ALv2
> >> >  * Google Guava: ALv2
> >> >
> >> > == Cryptography ==
> >> >
> >> > We do not expect Parquet to be a controlled export item due to the
> use of
> >> > encryption.
> >> >
> >> > == Required Resources ==
> >> >
> >> > === Mailing lists ===
> >> >
> >> >  * parquet-dev
> >> >  * parquet-user
> >> >
> >> > == Subversion Directory ==
> >> >
> >> > Git is the preferred source control system: git://
> git.apache.org/parquet
> >> >
> >> > == Issue Tracking ==
> >> >
> >> > JIRA: Parquet (PARQUET)
> >> >
> >> > == Initial Committers ==
> >> >
> >> >  * Aniket Mokashi
> >> >  * Brock Noland
> >> >  * Chris Aniszczyk <zx@twitter.com>
> >> >  * Dmitriy Ryaboy <dmitriy@twitter.com>
> >> >  * Jake Farrell
> >> >  * Julien Le Dem <julien@apache.org>
> >> >  * Lukas Nalezenec
> >> >  * Marcel Kornacker
> >> >  * Mickael Lacour
> >> >  * Nong Li
> >> >  * Remy Pecqueur
> >> >  * Tianshuo Deng
> >> >  * Tom White
> >> >
> >> > == Affiliations ==
> >> >
> >> >  * Aniket Mokashi - Twitter
> >> >  * Brock Noland - Cloudera
> >> >  * Chris Aniszczyk - Twitter
> >> >  * Dmitriy Ryaboy - Twitter
> >> >  * Jake Farrell
> >> >  * Julien Le Dem - Twitter
> >> >  * Lukas Nalezenec
> >> >  * Marcel Kornacker - Cloudera
> >> >  * Mickael Lacour - Criteo
> >> >  * Nong Li - Cloudera
> >> >  * Remy Pecqueur - Criteo
> >> >  * Tianshuo Deng - Twitter
> >> >  * Tom White - Cloudera
> >> >
> >> > == Sponsors ==
> >> >
> >> > === Champion ===
> >> >
> >> >  * Todd Lipcon
> >> >
> >> > === Nominated Mentors ===
> >> >
> >> >  * Tom White
> >> >  * Chris Mattmann
> >> >  * Jake Farrell
> >> >
> >> > === Sponsoring Entity ===
> >> >
> >> > The Apache Incubator
> >> >
> >> > --
> >> > Cheers,
> >> >
> >> > Chris Aniszczyk
> >> > http://aniszczyk.org
> >> > +1 512 961 6719
> >>
> >> ---------------------------------------------------------------------
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> >>
> >>
> >
> >
> > --
> > Cheers,
> >
> > Chris Aniszczyk
> > http://aniszczyk.org
> > +1 512 961 6719
>
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>


-- 
Cheers,

Chris Aniszczyk
http://aniszczyk.org
+1 512 961 6719

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