+1 (binding) -C On Tue, Mar 22, 2016 at 2:01 PM, Roman Shaposhnik <r...@apache.org> wrote: > Hi! > > Quickstep proposal was made available for discussion last week > https://wiki.apache.org/incubator/QuickstepProposal > and the feedback so far seems to be positive. > > Please vote to accept Quickstep into the Apache Incubator. > The vote will be open until Mon 3/28 noon PST. > > [ ] +1 Accept Quickstep into the Apache Incubator > [ ] +0 Abstain > [ ] -1 Don't accept Quickstep into the Apache Incubator because ... > > == Abstract == > > Quickstep is a high-performance database engine. It is designed to (1) > convert data to insights at bare-metal speed, (2) support multiple > query surfaces including SQL (the first (and current) version only > supports SQL, and (3) deliver bare-metal performance on any hardware > (including running on a laptop, running on a high-end (single node) > server, and running on a distributed cluster). Since its inception, > the project has been planned to deliver a high-performance single node > system first, followed by a distributed system. > > Quickstep is composed of several different modules that handle > different concerns of a database system. The main modules are: > * Utility - Reusable general-purpose code that is used by many other > modules. > * Threading - Provides a cross-platform abstraction for threads and > synchronization primitives that abstract the underlying OS threading > features. > * Types - The core type system used across all of Quickstep. Handles > details of how SQL types are stored, parsed, serialized & > deserialized, and converted. Also includes basic containers for typed > values (tuples and column-vectors) and low-level operations that apply > to typed values (e.g. basic arithmetic and comparisons). > * Catalog - Tracks database schema as well as physical storage > information for relations (e.g. which physical blocks store a > relation's data, and any physical partitioning and placement > information). > * Storage - Physically stores relational data in self-contained, > self-describing blocks, both in-memory and on persistent storage (disk > or a distributed filesystem). Also includes some heavyweight run-time > data structures used in query processing (e.g. hash tables for join > and aggregation). Includes a buffer manager component for managing > memory use and a file manager component that handles data persistence. > * Compression - Implements ordered dictionary compression. Several > storage formats in the Storage module are capable of storing > compressed column data and evaluating some expressions directly on > compressed data without decompressing. The common code supporting > compression is in this module. > * Expressions - Builds on the simple operations provided by the > Types module to support arbitrarily complex expressions over data, > including scalar expressions, predicates, and aggregate functions with > and without grouping. > * Relational Operators - This module provides the building blocks > for queries in Quickstep. A query is represented as a directed acyclic > graph of relational operators, each of which is responsible for > applying some relational-algebraic operation(s) to transform its > input. Operators generate individual self-contained "work orders" that > can be executed independently. Most operators are parallelism-friendly > and generate one work-order per storage block of input. > * Query Execution - Handles the actual scheduling and execution of > work from a query at runtime. The central class is the Foreman, an > independent thread with a global view of the query plan and progress. > The Foreman dispatches work-orders to stateless Worker threads and > monitors their progress, and also coordinates streaming of partial > results between producers and consumers in a query plan DAG to > maximize parallelism. This module also includes the QueryContext > class, which holds global shared state for an individual query and is > designed to support easy serialization/deserialization for distributed > execution. > * Parser - A simple SQL lexer and parser that parses SQL syntax into > an abstract syntax tree for consumption by the Query Optimizer. > * Query Optimizer - Takes the abstract syntax tree generated by the > parser and transforms it into a runable query-plan DAG for the Query > Execution module. The Query Optimizer is responsible for resolving > references to relations and attributes in the query, checking it for > semantic correctness, and applying optimizations (e.g. filter > pushdown, column pruning, join ordering) as part of the transformation > process. > * Command-Line Interface - An interactive SQL shell interface to Quickstep. > > Quickstep is implemented in C++ and does not require many external > libraries to run. Quickstep is currently an open source project > licensed under the Apache License Version 2.0 and governed by a group > of engineers at Pivotal. > > Quickstep began in 2011 as a research project in the Computer Sciences > Department at the University of Wisconsin > https://quickstep.cs.wisc.edu/ and the copyrights underlying the > project was transferred to a company called Quickstep Technologies, > which was acquired by Pivotal in 2015. > > == Proposal == > The goal of this proposal is to bring an already existing open source > project into the Apache Software Foundation (ASF) family thus > leveraging a very successful “Apache Way” governance model in order to > increase community participation and diversity. We hope that it will > allow us to build a vibrant, diverse and self-governed open source > community around the technology. Pivotal has agreed to transfer the > brand name "Quickstep" to ASF and will stop using Quickstep to refer > to this software if the project gets accepted into the ASF Incubator > under the name of "Apache Quickstep (incubating)". Pivotal may market > and sell products that include Apache Quickstep (incubating) under a > different brand name, but no determination has been made regarding > that. While Quickstep 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) Bolero or (2) Hustle. > > Pivotal is submitting this proposal to transfer the Quickstep source > code and associated artifacts (documentation, web site content, wiki, > etc.) from its current Github location to the ASF Incubator under the > Apache License, Version 2.0 and is asking the Incubator PMC to > establish an open source community. > > == Background == > > Quickstep is a next-generation relational data processing kernel > currently being developed as a collaboration between the academic > community and Pivotal. Quickstep aims to deliver efficient and > sustainable data processing performance on current and future hardware > by using a hardware-software co-design philosophy. > > For the hardware available today, this means effectively exploiting > large main memories, fast on-die CPU caches, highly parallel > multi-core CPUs, and NVRAM storage technologies. > > For the hardware available in the future, the project aims to > co-design hardware and software primitives that will allow data > processing kernels to work on increasing amounts of data economically > -- both from the raw performance perspective, and from the perspective > of the energy consumed by data processing kernels. > > == Rationale == > > In the past decade, ASF has established itself as one of the > quintessential sources of innovation in data management and data > processing frameworks. At the same time, there is a clear need for a > modern, flexible framework capable of exploiting the hardware > characteristics of today and make it available as a set of building > blocks to as wide a community of developers as possible. We strongly > believe that Quickstep technology can benefit a broader ecosystem of > database developers and researchers but this "world domination" needs > to be 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. > ASF is the ideal place to meet those ambitious goals. We also believe > that our experience bringing various Pivotal data products into ASF > family - including Apache Geode (incubating), Apache HAWQ (incubating) > and Apache MADlib (incubating) can be leveraged to make the Quickstep > transition a success, thus improving the chances of it becoming a > truly vibrant Apache community. > > == Initial Goals == > > Our initial goals are to bring Quickstep into ASF, transition internal > engineering processes into the open, and foster a collaborative > development model according to the "Apache Way." Pivotal and its > academic 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 licensed under the Apache License > v.2 and is available in a GitHub repository > https://github.com/pivotalsoftware/quickstep . The documentation and > wiki pages are available at same repository. Throughout its history > Quickstep was developed in a hybrid closed/opens source mode but it > has its roots in open source database management communities. The > internal engineering practices adopted by the development team lend > themselves well to an open, collaborative and meritocratic > environment. > > The Quickstep team has always focused on building a robust end user > community of researchers. The existing documentation along with > various publications are expected to facilitate conversions between > our existing users so as to transform them into an active community of > Quickstep members, stakeholders and developers. > > == Meritocracy == > > Our proposed list of initial committers include the current Quickstep > R&D team and several existing academic 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 Quickstep 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 small percentage of Quickstep core developers are skilled in working > as part of openly governed Apache communities (mainly around the > 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 > the Quickstep proposal: > * Apache Hive: Potential alignment here is to consider a version of > Hive that run on the Quickstep executor. > * Apache HAWQ (incubating): Potential alignment here is to consider > exchanging ideas and/or code for execution across both systems. > * Apache YARN: Work has started on a distributed version of > Quickstep, and its current path is to run as a YARN application. > * Apache Mesos: Potential alignment here is for Quickstep to run in > Apache Mesos. > > == Known Risks == > Development has been done mostly by a tightly knit group of University > of Wisconsin researchers and later was sponsored mostly by a single > company (Pivotal) thus far and coordinated mainly by the core > Quickstep team. The Quickstep team now spans Pivotal and the > University of Wisconsin. > > 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 Quickstep product are > compatible with the ASF infrastructure and thus we do not anticipate > any on-boarding pains. > > The project went through a very thorough vetting as part of Pivotal > open sourcing it under the Apache License v. 2.0 only a few month > ago. This gives us reasonable confidence to conclude that the code > base is clean and free from IP complications. > Orphaned products > Pivotal is fully committed to maintaining its position as one of the > leading providers of database management and data processing solutions > and the corresponding Pivotal commercial product will continue to be > developed around the Quickstep project. > > Moreover, Pivotal has a vested interest in making Quickstep successful > by driving its close integration with both existing projects > contributed to open source by Pivotal including Apache HAWQ > (incubating) and Greenplum Database, and sister ASF projects. We > expect this to further reduce 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), Apache HAWQ (incubating) and Apache MADlib > (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 Quickstep 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 many of the initial committers are employed by Pivotal or at the > University of Wisconsin, 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 == > Many of the contributors are paid to work in the Big Data and data > processing space and nearly all are committed to a career in that > 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, Quickstep may consider various > degrees of integration and code exchange with Apache Hive, Apache HAWQ > (incubating), Apache YARN and Apache Mesos. > > == 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 Quickstep into Apache Incubator. > > == Documentation == > The documentation is currently available at http://quickstep.cs.wisc.edu/ > > == Initial Source == > Initial source code is currently licensed under Apache License v.2 and > is available at https://github.com/pivotalsoftware/quickstep. > > == Source and Intellectual Property Submission Plan == > As soon as Quickstep 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. We know of no legal > encumbrances inhibiting the transfer of source code to the ASF. > > == External Dependencies == > > Runtime dependencies: > * farmhash: https://github.com/google/farmhash [License: MIT] > * gflags: https://github.com/gflags/gflags [License: BSD] > * glog: https://github.com/google/glog [License: BSD] > * gperftools: https://github.com/gperftools/gperftools [License: BSD] > * linenoise: https://github.com/antirez/linenoise [License: BSD 2-Clause] > * protobuf: https://github.com/google/protobuf [License: BSD] > > Build only dependencies: > * cmake: https://cmake.org/ [License: BSD] > * bison: https://www.gnu.org/software/bison/ [License: GPL with > exception for generated parsers] > * flex: http://flex.sourceforge.net [License: BSD] > > Test only dependencies: > * benchmark: https://github.com/google/benchmark [License: Apache 2.0] > * cpplint: https://github.com/google/styleguide [License: BSD] > * gtest: https://github.com/google/googletest [License: BSD] > * iwyu: http://include-what-you-use.org/ [License: UIUC BSD-Like] > > Cryptography: N/A > > == Required Resources == > > === Mailing lists === > * priv...@quickstep.incubator.apache.org (moderated subscriptions) > * comm...@quickstep.incubator.apache.org > * d...@quickstep.incubator.apache.org > * iss...@quickstep.incubator.apache.org > * u...@quickstep.incubator.apache.org > > === Git Repository === > https://git-wip-us.apache.org/repos/asf/incubator-quickstep.git > > === Issue Tracking === > > JIRA Project QUICKSTEP (QUICKSTEP) > > === Other Resources === > Means of setting up regular builds for Quickstep on builds.apache.org > will require integration with Docker support. > > == Initial Committers == > * Jignesh M. Patel > * Harshad Deshmukh > * Jianqiao Zhu > * Zuyu Zhang > * Marc Spehlmann > * Saket Saurabh > * Hakan Memisoglu > * Rogers Jeffrey Leo John > * Adalbert Gerald Soosai Raj > * Udip Pant > * Siddharth Suresh > * Rathijit Sen > * Craig Chasseur > * Qiang Zeng > * Shoban Chandrabose > * Navneet Potti > * Yinan Li > * Sangmin Shin > * James Paton > * Shixuan Fan > * Roman Shaposhnik > * Konstantin Boudnik > * Julian Hyde > * Dhruba Borthakur > > == Affiliations == > * Pivotal: Jignesh M. Patel, Zuyu Zhang, Roman Shaposhnik > * Google: Craig Chasseur > * Facebook: James Paton, Dhruba Borthakur > * Pinterest: Sangmin Shin > * Microsoft: Yinan Li > * Hortonworks: Julian Hyde > * Memcore: Konstantin Boudnik > * University of Wisconsin (and supported in part by Pivotal): Everyone else > > == Sponsors == > > === Champion === > Roman Shaposhnik > > === Nominated Mentors === > The initial mentors are listed below: > * Konstantin Boudnik - Apache Member, Memcore > * Roman Shaposhnik - Apache Member, Pivotal > * Julian Hyde, IPMC Member, Hortonworks > > === Sponsoring Entity === > We would like to propose Apache incubator to sponsor this project. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org > For additional commands, e-mail: general-h...@incubator.apache.org >
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