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From Luke Han <luke...@gmail.com>
Subject Re: [DISCUSS] S2Graph Incubator Proposal
Date Tue, 10 Nov 2015 02:58:53 GMT
I'm very interesting about this project, would love to help but I'm not
IPMC member.

Please let me know if there's anything I could help on.

Thanks.


Best Regards!
---------------------

Luke Han

On Tue, Nov 10, 2015 at 9:03 AM, Hyunsik Choi <hyunsik@apache.org> wrote:

> Hi Seetharam,
>
> Thank you for your volunteering! I've added your name to the mentor list.
>
> I also updated the initial committer list and affiliations via google
> search.
> If I wrote wrong affiliations, please let me know.
>
> Best regards,
> Hyunsik
>
>
> On Mon, Nov 9, 2015 at 4:21 PM, Seetharam Venkatesh
> <venkatesh@innerzeal.com> wrote:
> > Hi Hyunsik,
> >
> > If you are still looking for mentors, let me volunteer as one.
> >
> > Thanks!
> >
> > On Mon, Nov 9, 2015 at 3:45 PM Hyunsik Choi <hyunsik@apache.org> wrote:
> >
> >> Thank you all guys  I just put you names on the nominated mentor list.
> >>
> >> @Andrew,
> >>
> >> I agree with you. S2Graph already has good relationships with other
> >> ASF projects, such as HBase and Spark,  In addition, they have a plan
> >> to expand its relationship to Apache incubator TinkerPop, which is a
> >> graph computing framework. I'm looking forward to their combinations.
> >>
> >> @Sergio,
> >>
> >> Thank you for attending the talk and joining the S2Graph mentors. That
> >> was Doyung Yoon, one of the S2Graph creators. He had a talk at the
> >> last ApacheCon.
> >>
> >> On Mon, Nov 9, 2015 at 11:58 AM, Sergio Fernández <wikier@apache.org>
> >> wrote:
> >> > Hi Hyunsik, I attended your talk at the last ApacheCon, and I think S2
> >> has
> >> > quite some potential. So if you need a mentor, count me in!
> >> >
> >> > On Mon, Nov 9, 2015 at 7:54 PM, Hyunsik Choi <hyunsik@apache.org>
> wrote:
> >> >
> >> >> This project is looking for mentors. Anyone can help? We are also
> >> >> looking forward to any feedback.
> >> >>
> >> >> Also, I attached the proposal here. I forgot it.
> >> >>
> >> >> ----------------
> >> >>
> >> >> = S2Graph Proposal =
> >> >>
> >> >> == Abstract ==
> >> >> S2Graph is a distributed and scalable OLTP graph database built on
> >> >> HBase to support fast traversal on extremely large graph.
> >> >>
> >> >> Here are additional materials to introduce S2Graph.
> >> >>  * HBaseCon 2015 -
> >> http://www.slideshare.net/HBaseCon/use-cases-session-5
> >> >>  * Apache: Big Data 2015 -
> >> >>
> http://schd.ws/hosted_files/apachebigdata2015/06/s2graph_apache_con.pdf
> >> >>
> >> >> == Proposal ==
> >> >> S2Graph is to provide a scalable distributed graph database engine
> >> >> over key/value storage such as HBase. S2Graph provide fully
> >> >> ashynchronous API to manupulate data as property graph model and fast
> >> >> breadth first search query on graph.
> >> >>
> >> >> == Background ==
> >> >> S2Graph initially started as an internal project at Kakao.com to
> >> >> efficiently store user relation and user activities as one large
> graph
> >> >> and provide unified query to traverse graph. It was open sourced on
> >> >> Github about a 3 months ago in June 2015.
> >> >>
> >> >> Over time S2Graph, together with HBase as storage tier, has begun to
> >> >> be adapted into various applications, such as messaging, social
> feeds,
> >> >> realtime recommendations at Kakao.
> >> >>
> >> >> Users can benefit from S2Graph`s generalized high level API instead
> of
> >> >> low-level key/value API for graph abstraction, just like Phoenix
> >> >> provide SQL layer over HBase.
> >> >>
> >> >> == Rationale ==
> >> >> Graph data(highly interconnected data) is very abundant and important
> >> >> these days.
> >> >> When users have a multitude of relationships, each with complex
> >> >> properties associated with them, graph model is more intuitive and
> >> >> efficient than tabular format(RDBMS).
> >> >> There are many ASF projects that provide SQL layer, but there is no
> >> >> ASF projects that provide scalable graph layer on existing hadoop
> echo
> >> >> system.
> >> >> When graph data grows to trillion edge scale, the process of
> >> >> traversing takes a long time and costly. However, with the benefit
of
> >> >> HBase`s scalable architecture, S2Graph can traverse large graph in
> >> >> breadth first search manner efficiently.
> >> >>
> >> >> S2Graph also interoperates with several existing Apache
> >> >> projects(HBase, Spark) to provide way to merge real time events and
> >> >> batch processed data using property graph data model.
> >> >>
> >> >> Many developers are running their own domain specific API servers to
> >> >> serve their data products, but graph model is general and S2Graph API
> >> >> fully support traverse on graph, so it can be used as scalable
> general
> >> >> purpose API serving layer for various domains.
> >> >> As long as data can be modeled as graph, then users can avoid tedious
> >> >> work for developing customized API servers by using S2Graph.
> >> >>
> >> >> == Initial Goals ==
> >> >> The initial goals will be to move the existing codebase to Apache and
> >> >> integrate with the Apache development process. Once this is
> >> >> accomplished, we plan for incremental development and releases that
> >> >> follow the Apache guidelines.
> >> >>
> >> >> == Current Status ==
> >> >>
> >> >> === Meritocracy ===
> >> >> S2Graph operated on meritocratic principles from the get go.
> >> >> Currently, all the discussions pertaining to S2Graph development are
> >> >> public on Github. The current incubation
> >> >> proposal includes the major code contributors to S2Graph. Several
> >> >> additional people have worked on the S2graph codebase for industry
> use
> >> >> cases and would be interested in becoming committers. We are starting
> >> >> with a small committer group and we plan to add additional committers
> >> >> following an open merit-based decision process during the incubation
> >> >> phase.
> >> >>
> >> >> === Community ===
> >> >> We have already begun building a community but at this time the
> >> >> community consists only of S2Graph developers – all Kakao employees
–
> >> >> and prospective users.
> >> >> S2Graph seeks to develop developer and user communities during
> >> incubation.
> >> >>
> >> >> === Core Developers ===
> >> >> S2Graph is currently being designed and developed by 2 engineers from
> >> >> Kakao. - Doyung Yoon, Deawon Jeong.
> >> >>
> >> >> === Alignment ===
> >> >> Our proposed S2Graph effort aligns closely with Apache HBase. The
> >> >> HBase project perimeter is denoted by a simple byte-array based
> >> >> Create, Read, Update, Delete and Scan APIs with no current plans to
> >> >> extend beyond this bounds.
> >> >>
> >> >> S2Graph complements this with a higher level API for property graph
> >> model.
> >> >>
> >> >> S2Graph was designed to offer scalable distributed graph database
> skin
> >> >> over HBase from the beginning in order to provide property graph
> model
> >> >> and breadth first search, and continue to focus on providing graph
> >> >> model.
> >> >>
> >> >> == Known Risks ==
> >> >> === Orphaned Products ===
> >> >> The core developers of S2Graph team plan to work full time on this
> >> >> project. There is very little risk of S2Graph getting orphaned since
> >> >> at least one large company (Kakao) is extensively using it in their
> >> >> production HBase clusters. For example, currently there are 20+ use
> >> >> cases with more than 1+Trillion edges and 140 million breadth first
> >> >> search query requests per minute using S2Graph in production.
> >> >> We plan to extend and diversify this community further through
> Apache.
> >> >>
> >> >> === Inexperience with Open Source ===
> >> >> The core developers are all active users and followers of open
> source.
> >> >> They are already committers and contributors to the S2Graph Github
> >> >> project. All have been involved with the source code that has been
> >> >> released under an open source license. Though the core set of
> >> >> Developers do not have Apache Open Source experience, there are plans
> >> >> to onboard individuals with Apache open source experience on to the
> >> >> project.
> >> >>
> >> >> === Homogenous Developers ===
> >> >> Most committers in this proposal belong to the same institution
> >> >> (Kakao). The engagement of these committers goes well beyond the
> >> >> necessary development to support research, and all committers work
on
> >> >> S2Graph full time.
> >> >> Several people from other institutions are working on and are
> familiar
> >> >> with the S2Graph codebase. We will work to attract them as future
> >> >> committers during the incubation phase, following a merit-based
> >> >> approach.
> >> >>
> >> >> === Reliance on Salaried Developers ===
> >> >> Kakao invested in S2Graph as the distributed graph database solution
> >> >> on top of HBase and some of its key engineers are working full time
> on
> >> >> the project.
> >> >> We look forward to other Apache developers and researchers to
> >> >> contribute to the project.
> >> >> Also key to addressing the risk associated with relying on Salaried
> >> >> developers from a single entity is to increase the diversity of the
> >> >> contributors and actively lobby for Domain experts in the graph
> >> >> database space to contribute. Apache S2Graph intends to do this.
> >> >>
> >> >> === Relationships with Other Apache Products ===
> >> >> S2Graph has a strong relationship and dependency with Apache Hadoop
> >> >> HBase and Spark.
> >> >> Being part of Apache’s Incubation community, could help with a closer
> >> >> collaboration among these two projects and as well as others.
> >> >>
> >> >> In terms of graph processing frameworks, S2Graph and Apache Giraph
> >> >> look similar. However, their goals are apparently different to each
> >> >> other. Giraph aims at analytical batch processing on immutable graph
> >> >> data sets. In contrast, S2Graph is designed for OLTP-like workloads
> on
> >> >> graph data sets, and S2Graph provides INSERT/UPDATE operations too.
> >> >>
> >> >>
> >> >> === An Excessive Fascination with the Apache Brand ===
> >> >> S2Graph is proposing to enter incubation at Apache in order to help
> >> >> efforts to diversify the committer-base, not so much to capitalize
on
> >> >> the Apache brand. The S2Graph project is in production use already
> >> >> inside Kakao, but is not expected to be an Kakao product for external
> >> >> customers. As such, the S2Graph project is not seeking to use the
> >> >> Apache brand as a marketing tool.
> >> >>
> >> >> == Documentation ==
> >> >> Information about S2Graph can be found at
> >> >> https://github.com/kakao/s2graph. The following links provide more
> >> >> information about S2Graph in open source:
> >> >>  * S2Graph web site:
> >> https://steamshon.gitbooks.io/s2graph-book/content/
> >> >>  * Codebase at Github: https://github.com/kakao/s2graph
> >> >>  * Issue Tracking: https://github.com/kakao/s2graph/issues
> >> >>  * User community: https://groups.google.com/forum/#!forum/s2graph
> >> >>
> >> >> == Initial Source ==
> >> >>
> >> >> The S2Graph codebase is currently hosted on Github:
> >> >> https://github.com/kakao/s2graph
> >> >>
> >> >> === Source and Intellectual Property Submission Plan ===
> >> >>
> >> >> Currently, the S2Graph codebase is distributed under the Apache 2.0
> >> >> License.
> >> >>
> >> >> == External Dependencies ==
> >> >>
> >> >> Beyond relying on Apache HBase, Phoenix has the following external
> >> >> dependencies:
> >> >>  * Asynchbase (BSD license: http://www.antlr3.org/license.html)
> >> >>  * Mysql (BSD license:
> >> >> https://github.com/julianhyde/sqlline/blob/master/LICENSE)
> >> >>  * Play Framework (Apache 2.0 license:
> >> >> https://github.com/playframework/playframework)
> >> >>  * Scala (https://github.com/scala/scala)
> >> >>  * Spark
> >> >>  * Kafka
> >> >>
> >> >> == Required Resources ==
> >> >>
> >> >> === Mailing list ===
> >> >>
> >> >> We will migrate our mailing lists to the following:
> >> >>  * users@s2graph.incubator.apache.org
> >> >>  * dev@s2graph.incubator.apache.org
> >> >>  * private@s2graph.incubator.apache.org
> >> >>  * commits@s2graph.incubator.apache.org
> >> >>
> >> >> === Source control ===
> >> >>
> >> >> The S2Graph team would like to use Git for source control, due to our
> >> >> current use of Git. We request a writeable Git repo for S2Graph, and
> >> >> mirroring to be set up to Github through INFRA.
> >> >>
> >> >> === Issue Tracking ===
> >> >>
> >> >> S2Graph currently uses the github issue tracking system associated
> >> >> with its github repo: https://github.com/kakao/s2graph/issues. We
> will
> >> >> migrate to the Apache JIRA:
> >> >> http://issues.apache.org/jira/browse/S2Graph
> >> >>
> >> >> === Other Resources ===
> >> >>
> >> >> Jenkins/Hudson for builds and test running.
> >> >> Wiki for documentation purposes
> >> >> Blog to improve project dissemination
> >> >>
> >> >> == Initial Committers ==
> >> >>
> >> >>  * Doyung Yoon <shom83 at gmail.com>
> >> >>  * Daewon Jeong <blueiur at gmail.com>
> >> >>  * Jaesang Kim <honeysleep at gmail.com>
> >> >>  * Hwansung Yu <deejayfwan at gmail.com>
> >> >>  * Min-Seok Kim <mskim.org at gmail.com>
> >> >>  * Chul Kang <miralchul at gmail.com>
> >> >>
> >> >> == Affiliations ==
> >> >>
> >> >> The initial committers are from one organizations: Kakao.
> >> >>  * Doyung Yoon, Kakao
> >> >>  * Daewon Jeong, Kakao
> >> >>  * Jaesang Kim, Kakao
> >> >>  * Hwansung Yu, Kakao
> >> >>  * Min-Seok Kim, Kakao
> >> >>  * Chul Kang, Kakao
> >> >>
> >> >> == Sponsors ==
> >> >>
> >> >> === Champion ===
> >> >> Hyunsik Choi
> >> >>
> >> >> === Nominated Mentors ===
> >> >>
> >> >> === Sponsoring Entity ===
> >> >>
> >> >>  * The Apache Incubator
> >> >>
> >> >> On Fri, Nov 6, 2015 at 4:05 PM, Hyunsik Choi <hyunsik@apache.org>
> >> wrote:
> >> >> > Hi Seetharam,
> >> >> >
> >> >> > Thank you for a good question. That seem to be a frequent question
> to
> >> >> > this project.
> >> >> >
> >> >> > Here is the answer to your question.
> >> >> >
> >> >>
> >>
> https://steamshon.gitbooks.io/s2graph-book/content/what_is_different_to_titan.html
> >> >> >
> >> >> > I hope that this link is helpful to your understanding.
> >> >> >
> >> >> > Best regards,
> >> >> > Hyunsik
> >> >> >
> >> >> >
> >> >> >
> >> >> > On Fri, Nov 6, 2015 at 3:07 PM, Seetharam Venkatesh
> >> >> > <venkatesh@innerzeal.com> wrote:
> >> >> >> Hi Hyunsik,
> >> >> >>
> >> >> >> The proposal looks interesting and want to know how is this
> different
> >> >> from
> >> >> >> existing solutions in the same space such as Titan, etc.
> >> >> >>
> >> >> >> Thanks!
> >> >> >> Venkatesh
> >> >> >>
> >> >> >>
> >> >> >> On Fri, Nov 6, 2015 at 1:36 PM Hyunsik Choi <hyunsik@apache.org>
> >> wrote:
> >> >> >>
> >> >> >>> Hi folks,
> >> >> >>>
> >> >> >>> We would like to start a discussion on S2Graph as an incubation
> >> >> project.
> >> >> >>>
> >> >> >>> S2Graph is a distributed and scalable OLTP graph database
built
> on
> >> >> >>> HBase. It provides interactive queries for
> vertex/edge/sub-graphs on
> >> >> >>> extremely large graph data sets as well as insertion and
update
> >> >> >>> operations.
> >> >> >>>
> >> >> >>> S2Graph was already introduced in Apache BigData and HBaseCon
> this
> >> >> year.
> >> >> >>>
> >> >> >>> The proposal is available at :
> >> >> >>> https://wiki.apache.org/incubator/S2GraphProposal
> >> >> >>>
> >> >> >>> We are looking forward to any feedback. In addition, we
are
> looking
> >> >> >>> for volunteers as mentors.
> >> >> >>>
> >> >> >>> Best regards,
> >> >> >>> Hyunsik
> >> >> >>>
> >> >> >>>
> >> ---------------------------------------------------------------------
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> general-help@incubator.apache.org
> >> >> >>>
> >> >> >>>
> >> >>
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> >> >>
> >> >>
> >> >
> >> >
> >> > --
> >> > Sergio Fernández
> >> > Partner Technology Manager
> >> > Redlink GmbH
> >> > m: +43 6602747925
> >> > e: sergio.fernandez@redlink.co
> >> > w: http://redlink.co
> >>
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> >>
> >>
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