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 <hyun...@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 <wik...@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 <hyun...@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: > >> * us...@s2graph.incubator.apache.org > >> * d...@s2graph.incubator.apache.org > >> * priv...@s2graph.incubator.apache.org > >> * comm...@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 <hyun...@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 > >> > <venkat...@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 <hyun...@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 > >> >>> > >> >>> > --------------------------------------------------------------------- > >> >>> 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 > >> > >> > > > > > > -- > > Sergio Fernández > > Partner Technology Manager > > Redlink GmbH > > m: +43 6602747925 > > e: sergio.fernan...@redlink.co > > w: http://redlink.co > > --------------------------------------------------------------------- > To unsubscribe, e-mail: general-unsubscr...@incubator.apache.org > For additional commands, e-mail: general-h...@incubator.apache.org > >
