[X ] +1 Accept Parquet into the Incubator non-binding
On Mon, May 19, 2014 at 11:24 AM, Andrew Purtell <apurt...@apache.org>wrote: > +1 (binding) > > > On Sun, May 18, 2014 at 2:15 PM, Chris Aniszczyk <caniszc...@gmail.com > >wrote: > > > Based on the results of the discussion thread: > > > > > http://mail-archives.apache.org/mod_mbox/incubator-general/201405.mbox/%3CCAJg1wMRGhLu4P7LeVQB%2B5K0C-fr-pw2448uj%3D6-3zHag4F1EbA%40mail.gmail.com%3E > > > > I would like to call a vote on accepting Parquet into the incubator. > > https://wiki.apache.org/incubator/ParquetProposal > > > > [ ] +1 Accept Parquet into the Incubator > > [ ] +0 Indifferent to the acceptance of Parquet > > [ ] -1 Do not accept Parquet because ... > > > > The vote will be open until Thursday May 22nd 18:00 UTC. > > > > = Parquet Proposal = > > > > == 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 was until recently the 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. It provides an API that allowed it to be easily integrated with > > many other apache projects: Pig, Hive, Avro, Thrift, Spark, Drill, > Crunch, > > Tajo. Some of the features it provides are similar to the ORC file format > > which is part of the Hive project. However Parquet focused on being > > framework agnostic and language independent and has been really > successful > > to that end. On top of the Apache projects mentioned above, Parquet is > also > > integrated with other open source projects, including Protocol Buffers, > > Cloudera Impala or Scrooge. We look forward to continue collaborating > with > > those communities, as well as other Apache communities. > > > > === 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. > > > > These are the codebases 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 > > * Google Protobuf: New BSD License > > > > == Cryptography == > > > > We do not expect Parquet to be a controlled export item due to the use of > > encryption. > > > > == Required Resources == > > > > === Mailing lists === > > > > * priv...@parquet.incubator.apache.org > > * comm...@parquet.incubator.apache.org > > * d...@parquet.incubator.apache.org > > > > == Subversion Directory == > > > > Git is the preferred source control system: > > > > * git://git.apache.org/parquet-format > > * git://git.apache.org/parquet-mr > > > > == Issue Tracking == > > > > We'd like to keep using the Git review and issue tracking tools. > > Controlling Pull requests closing through git commit messages in > > git.apache.org > > > > == Initial Committers == > > > > * Aniket Mokashi <aniket...@gmail.com> > > * Brock Noland <br...@apache.org> > > * Chris Aniszczyk <caniszc...@gmail.com> > > * Dmitriy Ryaboy <dvrya...@apache.org> > > * Jake Farrell <jfarr...@apache.org> > > * Jonathan Coveney <jcove...@gmail.com> > > * Julien Le Dem <jul...@apache.org> > > * Lukas Nalezenec <lukas.naleze...@gmail.com> > > * Marcel Kornacker <mar...@cloudera.com> > > * Mickael Lacour > > * Nong Li <n...@cloudera.com> > > * Remy Pecqueur > > * Ryan Blue <b...@cloudera.com> > > * Tianshuo Deng <dengtians...@gmail.com> > > * Tom White <tomwh...@apache.org> > > * Wesley Peck > > > > == Affiliations == > > > > * Aniket Mokashi - Twitter > > * Brock Noland - Cloudera > > * Chris Aniszczyk - Twitter > > * Dmitriy Ryaboy - Twitter > > * Jake Farrell > > * Jonathan Coveney - Twitter > > * Julien Le Dem - Twitter > > * Lukas Nalezenec > > * Marcel Kornacker - Cloudera > > * Mickael Lacour - Criteo > > * Nong Li - Cloudera > > * Remy Pecqueur - Criteo > > * Ryan Blue - Cloudera > > * Tianshuo Deng - Twitter > > * Tom White - Cloudera > > * Wesley Peck - ARRIS, Inc. > > > > == Sponsors == > > > > === Champion === > > > > * Todd Lipcon > > > > === Nominated Mentors === > > > > * Tom White > > * Chris Mattmann > > * Jake Farrell > > * Roman Shaposhnik > > > > === Sponsoring Entity === > > > > The Apache Incubator > > > > -- > > Cheers, > > > > Chris Aniszczyk > > http://aniszczyk.org > > +1 512 961 6719 > > > > > > -- > Best regards, > > - Andy > > Problems worthy of attack prove their worth by hitting back. - Piet Hein > (via Tom White) >
