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From 김영우 (Youngwoo Kim) <>
Subject Re: [DISCUSS] HAWQ Incubation Proposal
Date Fri, 21 Aug 2015 03:33:43 GMT
Hi Roman,

Great news!

BTW, it might be a invalid URL for the proposal. Should be ?


On Fri, Aug 21, 2015 at 12:14 PM, Roman Shaposhnik <> wrote:

> Hi!
> I would like to start a discussion on accepting HAWQ
> into ASF Incubator. The proposal is available at:
> and is also attached to the end of this email.
> Please note, that this proposal is very complementary
> to the desire of HAWQ's sister project (MADlib) to
> join ASF Incubator:
> I've volunteered to help MADlib community and we're
> currently working on a separate proposal to be submitted
> later next week. If you're interested in monitoring progress
> of that please see updates to:
> and later:
> Thanks in advance for your time and help.
> Thanks,
> Roman.
> == Abstract ==
> HAWQ is an advanced enterprise SQL on Hadoop analytic engine built
> around a robust and high-performance massively-parallel processing
> (MPP) SQL framework evolved from Pivotal Greenplum DatabaseⓇ.
> HAWQ runs natively on Apache HadoopⓇ clusters by tightly integrating
> with HDFS and YARN. HAWQ supports multiple Hadoop file formats such as
> Apache Parquet, native HDFS, and Apache Avro. HAWQ is configured and
> managed as a Hadoop service in Apache Ambari. HAWQ is 100% ANSI SQL
> compliant (supporting ANSI SQL-92, SQL-99, and SQL-2003, plus OLAP
> extensions) and supports open database connectivity (ODBC) and Java
> database connectivity (JDBC), as well. Most business intelligence,
> data analysis and data visualization tools work with HAWQ out of the
> box without the need for specialized drivers.
> A unique aspect of HAWQ is its integration of statistical and machine
> learning capabilities that can be natively invoked from SQL or (in the
> context of PL/Python, PL/Java or PL/R) in massively parallel modes and
> applied to large data sets across a Hadoop cluster. These capabilities
> are provided through MADlib – an existing open source, parallel
> machine-learning library. Given the close ties between the two
> development communities, the MADlib community has expressed interest
> in joining HAWQ on its journey into the ASF Incubator and will be
> submitting a separate, concurrent proposal.
> HAWQ will provide more robust and higher performing options for Hadoop
> environments that demand best-in-class data analytics for business
> critical purposes. HAWQ is implemented in C and C++.
> == Proposal ==
> The goal of this proposal is to bring the core of Pivotal Software,
> Inc.’s (Pivotal) Pivotal HAWQⓇ codebase into the Apache Software
> Foundation (ASF) in order to build a vibrant, diverse and
> self-governed open source community around the technology. Pivotal has
> agreed to transfer the brand name "HAWQ" to Apache Software Foundation
> and will stop using HAWQ to refer to this software if the project gets
> accepted into the ASF Incubator under the name of "Apache HAWQ
> (incubating)". Pivotal will continue to market and sell an analytic
> engine product that includes Apache HAWQ (incubating). While HAWQ is
> our primary choice for a name of the project, in anticipation of any
> potential issues with PODLINGNAMESEARCH we have come up with two
> alternative names: (1) Hornet; or (2) Grove.
> Pivotal is submitting this proposal to donate the HAWQ source code and
> associated artifacts (documentation, web site content, wiki, etc.) to
> the Apache Software Foundation Incubator under the Apache License,
> Version 2.0 and is asking Incubator PMC to establish an open source
> community.
> == Background ==
> While the ecosystem of open source SQL-on-Hadoop solutions is fairly
> developed by now, HAWQ has several unique features that will set it
> apart from existing ASF and non-ASF projects. HAWQ made its debut in
> 2013 as a closed source product leveraging a decade's worth of product
> development effort invested in Greenplum DatabaseⓇ. Since then HAWQ
> has rapidly gained a solid customer base and became available on
> non-Pivotal distributions of Hadoop.
> In 2015 HAWQ still leverages the rock solid foundation of Greenplum
> Database, while at the same time embracing elasticity and resource
> management native to Hadoop applications. This allows HAWQ to provide
> superior SQL on Hadoop performance, scalability and coverage while
> also providing massively-parallel machine learning capabilities and
> support for native Hadoop file formats. In addition, HAWQ's advanced
> features include support for complex joins, rich and compliant SQL
> dialect and industry-differentiating data federation capabilities.
> Dynamic pipelining and pluggable query optimizer architecture enable
> HAWQ to perform queries on Hadoop with the speed and scalability
> required for enterprise data warehouse (EDW) workloads. HAWQ provides
> strong support for low-latency analytic SQL queries, coupled with
> massively parallel machine learning capabilities. This enables
> discovery-based analysis of large data sets and rapid, iterative
> development of data analytics applications that apply deep machine
> learning – significantly shortening data-driven innovation cycles for
> the enterprise.
> Hundreds of companies and thousands of servers are running
> mission-critical applications today on HAWQ managing over PBs of data.
> == Rationale ==
> Hadoop and HDFS-based data management architectures continue their
> expansion into the enterprise. As the amount of data stored on Hadoop
> clusters grows, unlocking the analytics capabilities and democratizing
> access to that treasure trove of data becomes one of the key concerns.
> While Hadoop has no shortage of purposefully designed analytical
> frameworks, the easiest and most cost-effective way to onboard the
> largest amount of data consumers is provided by offering SQL APIs for
> data retrieval at scale. Of course, given the high velocity of
> innovation happening in the underlying Hadoop ecosystem, any
> SQL-on-Hadoop solution has to keep up with the community. We strongly
> believe that in the Big Data space, this can be optimally achieved
> through a vibrant, diverse, self-governed community collectively
> innovating around a single codebase while at the same time
> cross-pollinating with various other data management communities.
> Apache Software Foundation is the ideal place to meet those ambitious
> goals. We also believe that our initial experience of bringing Pivotal
> GemfireⓇ into ASF as Apache Geode (incubating) could be leveraged thus
> improving the chances of HAWQ becoming a vibrant Apache community.
> == Initial Goals ==
> Our initial goals are to bring HAWQ into the ASF, transition internal
> engineering processes into the open, and foster a collaborative
> development model according to the "Apache Way." Pivotal and its
> partners plan to develop new functionality in an open,
> community-driven way. To get there, the existing internal build, test
> and release processes will be refactored to support open development.
> == Current Status ==
> Currently, the project code base is commercially licensed and is not
> available to the general public. The documentation and wiki pages are
> available at FIXME. Although Pivotal HAWQ was developed as a
> proprietary, closed-source product, its roots are in the PostgreSQL
> community and the internal engineering practices adopted by the
> development team lend themselves well to an open, collaborative and
> meritocratic environment.
> The Pivotal HAWQ team has always focused on building a robust end user
> community of paying and non-paying customers. The existing
> documentation along with StackOverflow and other similar forums are
> expected to facilitate conversions between our existing users so as to
> transform them into an active community of HAWQ members, stakeholders
> and developers.
> === Meritocracy ===
> Our proposed list of initial committers include the current HAWQ R&D
> team, Pivotal Field Engineers, and several existing partners. This
> group will form a base for the broader community we will invite to
> collaborate on the codebase. We intend to radically expand the initial
> developer and user community by running the project in accordance with
> the "Apache Way". Users and new contributors will be treated with
> respect and welcomed. By participating in the community and providing
> quality patches/support that move the project forward, contributors
> will earn merit. They also will be encouraged to provide non-code
> contributions (documentation, events, community management, etc.) and
> will gain merit for doing so. Those with a proven support and quality
> track record will be encouraged to become committers.
> === Community ===
> If HAWQ is accepted for incubation, the primary initial goal will be
> transitioning the core community towards embracing the Apache Way of
> project governance. We would solicit major existing contributors to
> become committers on the project from the start.
> === Core Developers ===
> A few of HAWQ's core developers are skilled in working as part of
> openly governed Apache communities (mainly around Hadoop ecosystem).
> That said, most of the core developers are currently NOT affiliated
> with the ASF and would require new ICLAs before committing to the
> project.
> === Alignment ===
> The following existing ASF projects can be considered when reviewing
> HAWQ proposal:
> Apache Hadoop is a distributed storage and processing framework for
> very large datasets, focusing primarily on batch processing for
> analytic purposes. HAWQ builds on top of two key pieces of Hadoop:
> YARN and HDFS. HAWQ's community roadmap includes plans for
> contributing Hadoop around HDFS features and increasing support for C
> and C++ clients.
> Apache Spark™ is a fast engine for processing large datasets,
> typically from a Hadoop cluster, and performing batch, streaming,
> interactive, or machine learning workloads.  Recently, Apache Spark
> has embraced SQL-like APIs around DataFrames at its core. Because of
> that we would expect a level of collaboration between the two projects
> when it comes to query optimization and exposing HAWQ tables to Spark
> analytical pipelines.
> Apache Hive™ is a data warehouse software that facilitates querying
> and managing large datasets residing in distributed storage. Hive
> provides a mechanism to project structure onto this data and query the
> data using a SQL-like language called HiveQL. Hive is also providing
> HCatalog capabilities as table and storage management layer for
> Hadoop, enabling users with different data processing tools to more
> easily define structure for the data on the grid. Currently the core
> Hive and HAWQ are viewed as complimentary solutions, but we expect
> close integration with HCatalog given its dominant position for
> metadata management on the Hadoop clusters.
> Apache Drill is a schema-free SQL query engine for Hadoop, NoSQL and
> Cloud Storage. Drill is similar to HAWQ but focuses on slightly
> different areas (FIXME). Given Drill's implementation based on C and
> C++ and and overall architecture there could be quite a lot of
> collaboration focused on lower level building blocks.
> Apache Phoenix is a high performance relational database layer over
> HBase for low latency applications. Given Phoenix's exclusive focus on
> HBase for its data management backend and its overall architecture
> around HBase's co-processors, it is unlikely that there will be much
> collaboration between the two projects.
> == Known Risks ==
> Development has been sponsored mostly by a single company (or its
> predecessors) thus far and coordinated mainly by the core Pivotal HAWQ
> team.
> For the project to fully transition to the Apache Way governance
> model, development must shift towards the meritocracy-centric model of
> growing a community of contributors balanced with the needs for
> extreme stability and core implementation coherency.
> The tools and development practices in place for the Pivotal HAWQ
> product are compatible with the ASF infrastructure and thus we do not
> anticipate any on-boarding pains.
> The project currently includes a modified version of PostgreSQL 8.3
> source code. Given the ASF's position that the PostgreSQL License is
> compatible with the Apache License version 2.0, we do NOT anticipate
> any issues with licensing the code base. However, any new capabilities
> developed by the HAWQ team once part of the ASF would need to be
> consumed by the PostgreSQL community under the Apache License version
> 2.0.
> === Orphaned products ===
> Pivotal is fully committed to maintaining its position as one of the
> leading providers of SQL-on-Hadoop solutions and the corresponding
> Pivotal commercial product will continue to be based on the HAWQ
> project. Moreover, Pivotal has a vested interest in making HAWQ
> successful by driving its close integration with both existing
> projects contributed by Pivotal including Apache Geode (incubating)
> and MADlib (which is requesting Incubation), and sister ASF projects.
> We expect this to further reduces the risk of orphaning the product.
> === Inexperience with Open Source ===
> Pivotal has embraced open source software since its formation by
> employing contributors/committers and by shepherding open source
> projects like Cloud Foundry, Spring, RabbitMQ and MADlib. Individuals
> working at Pivotal have experience with the formation of vibrant
> communities around open technologies with the Cloud Foundry
> Foundation, and continuing with the creation of a community around
> Apache Geode (incubating).  Although some of the initial committers
> have not had the experience of developing entirely open source,
> community-driven projects, we expect to bring to bear the open
> development practices that have proven successful on longstanding
> Pivotal open source projects to the HAWQ community.  Additionally,
> several ASF veterans have agreed to mentor the project and are listed
> in this proposal. The project will rely on their collective guidance
> and wisdom to quickly transition the entire team of initial committers
> towards practicing the Apache Way.
> === Homogeneous Developers ===
> While most of the initial committers are employed by Pivotal, we have
> already seen a healthy level of interest from existing customers and
> partners. We intend to convert that interest directly into
> participation and will be investing in activities to recruit
> additional committers from other companies.
> === Reliance on Salaried Developers ===
> Most of the contributors are paid to work in the Big Data space. While
> they might wander from their current employers, they are unlikely to
> venture far from their core expertise and thus will continue to be
> engaged with the project regardless of their current employers.
> === Relationships with Other Apache Products ===
> As mentioned in the Alignment section, HAWQ may consider various
> degrees of integration and code exchange with Apache Hadoop, Apache
> Spark, Apache Hive and Apache Drill projects. We expect integration
> points to be inside and outside the project. We look forward to
> collaborating with these communities as well as other communities
> under the Apache umbrella.
> === An Excessive Fascination with the Apache Brand ===
> While we intend to leverage the Apache ‘branding’ when talking to
> other projects as testament of our project’s ‘neutrality’, we have no
> plans for making use of Apache brand in press releases nor posting
> billboards advertising acceptance of HAWQ into Apache Incubator.
> == Documentation ==
> The documentation is currently available at
> == Initial Source ==
> Initial source code will be available immediately after Incubator PMC
> approves HAWQ joining the Incubator and will be licensed under the
> Apache License v2.
> == Source and Intellectual Property Submission Plan ==
> As soon as HAWQ is approved to join the Incubator, the source code
> will be transitioned via an exhibit to Pivotal's current Software
> Grant Agreement onto ASF infrastructure and in turn made available
> under the Apache License, version 2.0.  We know of no legal
> encumberments that would inhibit the transfer of source code to the
> ASF.
> == External Dependencies ==
> Runtime dependencies:
>   * gimli (BSD)
>   * openldap (The OpenLDAP Public License)
>   * openssl (OpenSSL License and the Original SSLeay License, BSD style)
>   * proj (MIT)
>   * yaml (Creative Commons Attribution 2.0 License)
>   * python (Python Software Foundation License Version 2)
>   * apr-util (Apache Version 2.0)
>   * bzip2 (BSD-style License)
>   * curl (MIT/X Derivate License)
>   * gperf (GPL Version 3)
>   * protobuf (Google)
>   * libevent (BSD)
>   * json-c (
>   * krb5 (MIT)
>   * pcre (BSD)
>   * libedit (BSD)
>   * libxml2 (MIT)
>   * zlib (Permissive Free Software License)
>   * libgsasl (LGPL Version 2.1)
>   * thrift (Apache Version 2.0)
>   * snappy (Apache Version 2.0 (up to 1.0.1)/New BSD)
>   * libuuid-2.26 (LGPL Version 2)
>   * apache hadoop (Apache Version 2.0)
>   * apache avro (Apache Version 2.0)
>   * glog (BSD)
>   * googlemock (BSD)
> Build only dependencies:
>   * ant (Apache Version 2.0)
>   * maven (Apache Version 2.0)
>   * cmake (BSD)
> Test only dependencies:
>   * googletest (BSD)
> Cryptography N/A
> == Required Resources ==
> === Mailing lists ===
>   * (moderated subscriptions)
>   *
>   *
>   *
>   *
> === Git Repository ===
> === Issue Tracking ===
> JIRA Project HAWQ (HAWQ)
> === Other Resources ===
> Means of setting up regular builds for HAWQ on will
> require integration with Docker support.
> == Initial Committers ==
>   * Lirong Jian
>   * Hubert Huan Zhang
>   * Radar Da Lei
>   * Ivan Yanqing Weng
>   * Zhanwei Wang
>   * Yi Jin
>   * Lili Ma
>   * Jiali Yao
>   * Zhenglin Tao
>   * Ruilong Huo
>   * Ming Li
>   * Wen Lin
>   * Lei Chang
>   * Alexander V Denissov
>   * Newton Alex
>   * Oleksandr Diachenko
>   * Jun Aoki
>   * Bhuvnesh Chaudhary
>   * Vineet Goel
>   * Shivram Mani
>   * Noa Horn
>   * Sujeet S Varakhedi
>   * Junwei (Jimmy) Da
>   * Ting (Goden) Yao
>   * Mohammad F (Foyzur) Rahman
>   * Entong Shen
>   * George C Caragea
>   * Amr El-Helw
>   * Mohamed F Soliman
>   * Venkatesh (Venky) Raghavan
>   * Carlos Garcia
>   * Zixi (Jesse) Zhang
>   * Michael P Schubert
>   * C.J. Jameson
>   * Jacob Frank
>   * Ben Calegari
>   * Shoabe Shariff
>   * Rob Day-Reynolds
>   * Mel S Kiyama
>   * Charles Alan Litzell
>   * David Yozie
>   * Caleb Welton
>   * Parham Parvizi
>   * Dan Baskette
>   * Christian Tzolov
>   * Tushar Pednekar
>   * Greg Chase
>   * Chloe Jackson
>   * Michael Nixon
>   * Roman Shaposhnik
>   * Alan Gates
>   * Owen O'Malley
>   * Thejas Nair
>   * Don Bosco Durai
>   * Konstantin Boudnik
>   * Sergey Soldatov
>   * Atri Sharma
> == Affiliations ==
>   * Barclays:  Atri Sharma
>   * Hortonworks: Alan Gates, Owen O'Malley, Thejas Nair, Don Bosco Durai
>   * WANDisco: Konstantin Boudnik, Sergey Soldatov
>   * Pivotal: everyone else on this proposal
> == Sponsors ==
> === Champion ===
> Roman Shaposhnik
> === Nominated Mentors ===
> The initial mentors are listed below:
>   * Alan Gates - Apache Member, Hortonworks
>   * Owen O'Malley - Apache Member, Hortonworks
>   * Thejas Nair - Apache Member, Hortonworks
>   * Konstantin Boudnik - Apache Member, WANDisco
>   * Roman Shaposhnik - Apache Member, Pivotal
> === Sponsoring Entity ===
> We would like to propose Apache incubator to sponsor this project.
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