+1 (binding) > On May 17, 2017, at 1:58 PM, Jia Zhai <zhaiji...@gmail.com> wrote: > > +1 (non-binding) > > On Thu, May 18, 2017 at 1:11 AM, P. Taylor Goetz <ptgo...@gmail.com> wrote: > >> +1 (binding) >> >> -Taylor >> >>> On May 16, 2017, at 10:39 PM, Bryan Call <bc...@apache.org> wrote: >>> >>> Hi All, >>> >>> As the champion for Pulsar, I would like to start a VOTE to bring the >>> project in as Apache incubator podling. >>> >>> The ASF voting rules are described: >>> >>> https://www.apache.org/foundation/voting.html >>> >>> A vote for accepting a new Apache Incubator podling is a majority vote >> for which >>> only Incubator PMC member votes are binding. >>> >>> This vote will run for at least 72 hours. Please VOTE as follows >>> [] +1 Accept Pulsar into the Apache Incubator >>> [] +0 Abstain. >>> [] -1 Do not accept Pulsar into the Apache Incubator because ... >>> >>> The proposal is listed below, but you can also access it on the wiki: >>> >>> https://wiki.apache.org/incubator/PulsarProposal >>> >>> -Bryan >>> >>> >>> = Pulsar Proposal = >>> >>> == Abstract == >>> >>> Pulsar is a highly scalable, low latency messaging platform running on >>> commodity hardware. It provides simple pub-sub semantics over topics, >>> guaranteed at-least-once delivery of messages, automatic cursor >> management for >>> subscribers, and cross-datacenter replication. >>> >>> == Proposal == >>> >>> Pub-sub messaging is a very common design pattern that is increasingly >> found >>> in distributed systems powering Internet applications. These applications >>> provide real-time services, and need publish-latencies of 5ms on average >> and >>> no more than 15ms at the 99th percentile. At Internet scale, these >>> applications require a messaging system with ordering, strong >> durability, and >>> delivery guarantees. In order to handle the “five 9’s” durability >> requirements >>> of a production environment, the messages have to be committed on >> multiple >>> disks or nodes. >>> >>> Pulsar has been developed at Yahoo to address these specific >> requirements by >>> providing a hosted service supporting millions of topics for multiple >> tenants. >>> The current incarnation of Pulsar has been open-sourced under Apache >> license >>> in September 2016 and it is the direct evolution of systems that were >>> developed at Yahoo since 2011. >>> >>> We believe there is currently no other system that provides a >> multi-tenant >>> hosted messaging platform capable of supporting a huge number of topics >> while >>> maintaining strict guarantees for durability, ordering and low latency. >>> Current solutions would require to run multiple individual clusters with >>> additional operational work and capacity overhead. >>> >>> Since the open sourcing of Pulsar, the development has been done >> exclusively >>> on the public Github repository and two major releases were shipped >> (1.15 and >>> 1.16), along with multiple minor ones. Several other companies have >> expressed >>> interest in the project and its future direction. >>> >>> == Rationale == >>> >>> Pulsar is a platform that is built on top of several other Apache >> projects. In >>> particular, Apache BookKeeper is used to store the data and Apache >> ZooKeeper >>> is used for coordination and metadata storage. Pulsar is also >> interoperable >>> out of the box with Apache Storm, to provide an easy to use stream >> processing >>> solution. >>> >>> We want to establish a community outside the scope of initial core >> developers >>> at Yahoo and we believe that the Apache Foundation is a great fit and >> long- >>> term home for Pulsar, as it provides an established process for >> community- >>> driven development and decision making by consensus. This is exactly the >> model >>> we want to adopt for future Pulsar development. >>> >>> == Initial Goals == >>> >>> The initial goals will be to move the existing codebase to Apache and >>> integrate with the Apache development process. Furthermore, we plan for >>> incremental development, and releases along with the Apache guidelines. >>> >>> == Current Status == >>> >>> Pulsar has been in service at large scale for more than 2 years at >> Yahoo. In >>> this time around 60 different applications were integrated with Pulsar. >> Other >>> companies are evaluating it as well and have been contributing code to >> the >>> project. >>> >>> === Meritocracy === >>> >>> We value meritocracy and we understand that it is the basis to form an >> open >>> community that encourages multiple companies and individuals to >> contribute and >>> get invested in the project future. We will encourage and monitor >>> participation and make sure to extend privileges and responsibilities to >> all >>> contributors. >>> >>> === Community === >>> >>> We have validated, through the interest demonstrated by Pulsar users at >> Yahoo, >>> that a reliable hosted pub-sub messaging platform represent a very >> important >>> building block for web-scale distributed applications. We believe that >> many >>> companies can benefit by applying the same model and that bringing >> Pulsar to >>> Apache will get the community to grow stronger. >>> >>> === Core Developers === >>> >>> Pulsar has been initially developed at Yahoo and received significant >>> contributions from Yahoo Japan. After having open-sourced the project >> there >>> have been contribution from developers from several external companies. >>> >>> === Alignment === >>> >>> Pulsar builds upon other Apache projects such as ZooKeeper and >> BookKeeper, >>> along with a number of other Apache libraries. We have already >> integrated with >>> Storm and we envision to integrate with multiple other systems in the >>> streaming and big data space. >>> >>> == Known Risks == >>> >>> === Orphaned Products === >>> >>> Yahoo has been doing most of the development and, given that many >> internal >>> platforms depends on Pulsar, it is heavily invested in the long term >> success >>> of the the project. Yahoo has a long history participating in open-source >>> projects, and has been also a long time contributor to the Apache >> community. >>> >>> === Inexperience with Open Source === >>> >>> Many Pulsar contributors are already familiar with the open source >> process and >>> several of them are committers on other Apache projects. We will be >> actively >>> working with experienced Apache community members to improve our project. >>> >>> === Homogenous Developers === >>> >>> The initial committers are employed by large companies including Yahoo, >> Yahoo! >>> Japan, Salesforce and MercadoLibre. We hope to grow the community and to >>> include additional committers based on their contributions to the >> project. >>> >>> === Reliance on Salaried Developers === >>> >>> It is expected that Pulsar development will occur on both salaried time >> and on >>> volunteer time, after hours. The majority of initial committers are paid >> by >>> their employer 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. >>> >>> === Relationships with Other Apache Products === >>> >>> As mentioned in the Rationale section, Pulsar is closely dependent and >>> integrated with BookKeeper and ZooKeeper and Storm. There are ongoing to >>> integrate with other projects such Apache Spark. We look forward to >>> collaborating with those communities, as well as other Apache >> communities. >>> >>> === An Excessive Fascination with the Apache Brand === >>> >>> We are applying to the Incubator process because we think it is the next >>> logical step for the Pulsar project after open-sourcing the code in >> 2016. This >>> proposal is not for the purpose of generating publicity. Rather, we want >> to >>> make sure to create a very inclusive and meritocratic community, outside >> the >>> umbrella of a single company. Yahoo has a long standing history of >>> contributing to Apache projects and the Pulsar developers and >> contributors >>> understand the implication of making it an Apache project. >>> >>> == Documentation == >>> * Pulsar code base: https://github.com/yahoo/pulsar >>> * Pulsar documentation: https://github.com/yahoo/pulsar/blob >>> /master/docs/Documentation.md >>> * Blog post: [[https://yahooeng.tumblr.com/post/150078336821/ >>> open-sourcing-pulsar-pub-sub-messaging-at-scale|Open-sourcing Pulsar, >>> Pub-sub Messaging at Scale]] >>> >>> == Initial Source == >>> >>> The Pulsar codebase is currently hosted on Github: >>> https://github.com/yahoo/pulsar. This is the exact codebase that we >> would >>> migrate to the Apache Software Foundation. >>> >>> == Source and Intellectual Property Submission Plan == >>> >>> The Pulsar source code in Github is currently licensed under Apache >> License >>> v2.0 and the copyright is assigned to Yahoo. All the contributions from >>> external parties have been received under Apache style CLA. If Pulsar >> fulfills >>> and passes the conditions for being an Incubator project in the ASF, >> Yahoo >>> will transition the source code ownership to the Apache Software >> Foundation >>> via the Software Grant Agreement. >>> >>> == External Dependencies == >>> >>> To the best of our knowledge, all of Pulsar dependencies are distributed >> under >>> Apache compatible licenses. >>> >>> === External dependencies licensed under Apache License 2.0: === >>> >>> Athenz, JCommander, HPPC - High Performance Primitive Collections for >> Java, >>> FasterXML Jackson, Caffeine Async Cache, GSon, Guava, Netty, >> DataSketches, >>> Joda-time, Jna Java Native Access, Lz4-java, AsyncHttpClient, Jetty, >> SnakeYAML >>> >>> === ASF Projects: === >>> >>> BookKeeper, ZooKeeper, Storm, Log4J, Commons (BeanUtils, CLI, Codec, >>> Collections, Configuration, Digester, IO, Lang, Lang3, Logging) >>> >>> === Others: === >>> * Protobuf (3-clause BSD) >>> * JLine (BSD License) >>> * Jersey (CDDL - Version 1.1) >>> * HdrHistogram (BSD License) >>> * RocksDB-JNI (3-clause BSD) >>> * SLF4J API (MIT) >>> >>> == Required Resources == >>> >>> === Mailing lists === >>> * us...@pulsar.incubator.apache.org >>> * d...@pulsar.incubator.apache.org >>> * comm...@pulsar.incubator.apache.org >>> * priv...@pulsar.incubator.apache.org (with moderated subscriptions) >>> >>> === Git Repository === >>> * https://git-wip-us.apache.org/repos/asf/incubator-pulsar >>> >>> === Issue Tracking === >>> * JIRA Pulsar (PULSAR) >>> >>> == Initial Committers == >>> * Matteo Merli - <mme...@apache.org> >>> * Joe Francis - <j...@yahoo-inc.com> >>> * Rajan Dhabalia - <rdhaba...@yahoo-inc.com> >>> * Sahaya Andrews Albert - <sandr...@yahoo-inc.com> >>> * Maurice Barnum - <m...@yahoo-inc.com> >>> * Ludwig Pummer - <lud...@yahoo-inc.com> >>> * Jai Asher - <j...@yahoo-inc.com> >>> * Siddharth Boobna - <sboo...@apache.org> >>> * Nozomi Kurihara - <nkuri...@yahoo-corp.jp> >>> * Yuki Shiga - <yush...@yahoo-corp.jp> >>> * Masakazu Kitajo - <mas...@apache.org> >>> * Sebastián Schepens - <sebastian.schep...@mercadolibre.com> >>> * Brad McMillen - <bra...@yahoo-inc.com> >>> * Bobbey Reese - <bre...@yahoo-inc.com> >>> * Masahiro Sakamoto <massa...@yahoo-corp.jp> >>> * Hiroyuki Sakai <hsa...@yahoo-corp.jp> >>> >>> == Affiliations == >>> * Matteo Merli - Streamlio >>> * Joe Francis - Yahoo >>> * Rajan Dhabalia - Yahoo >>> * Sahaya Andrews Albert - Yahoo >>> * Maurice Barnum - Yahoo >>> * Ludwig Pummer - Yahoo >>> * Jai Asher - Yahoo >>> * Siddharth Boobna - Salesforce >>> * Nozomi Kurihara - Yahoo! Japan >>> * Yuki Shiga - Yahoo! Japan >>> * Masakazu Kitajo - Apple >>> * Sebastián Schepens - Mercado Libre >>> * Brad McMillen - Yahoo >>> * Bobbey Reese - Yahoo >>> >>> == Sponsors == >>> >>> === Champion === >>> * Bryan Call >>> >>> === Nominated Mentors === >>> * Dave Fisher >>> * Jim Jagielski >>> * P. Taylor Goetz >>> * Francis Liu >>> >>> === Sponsoring Entity === >>> * The Apache Incubator PMC >>> >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >>> For additional commands, e-mail: general-h...@incubator.apache.org >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org >> For additional commands, e-mail: general-h...@incubator.apache.org >> >>
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