Thanks to all participating. Due to response from Datastax legal rep, this proposal at this moment considered "hostile" fork and hence no longer open for discussion.
- Henry On Wed, Sep 28, 2016 at 9:01 PM, Henry Saputra <henry.sapu...@gmail.com> wrote: > Hi All, > > Please find below a proposal for a new incubator podling, Apache Olympian, > formerly Titan. > Apache Olympian is software designed to support the processing of graphs > so large that they require storage and computational capacities beyond what > a single machine can provide. > > This project will be a fork of Titan graph database project ( > https://github.com/thinkaurelius/titan/) that already come with Apache > License v2.0. > The project was created by company called Aurelius and was acquired by > Datstax. > Coming to 2016 there has been less activity in the project as the > original authors are busy with other software development, but there is > significant interest from the community (see https://groups.google.com > /forum/#!msg/aureliusgraphs/jEN_7QwVXZ4/mz3gik-FAgAJ) > > The community have tried to reaching out to Datastax to donate the > copyright and trademark of project to ASF but it was not approved. > Because of that, the community has decided to go to ASF with different > name: Apache Olympian. > > The wiki proposal page is located at this URL: > > https://wiki.apache.org/incubator/OlympianProposal > > I have also included the current text of that page below. > > Looking forward of comments or questions about this proposal. > > > Thanks, > Henry Saputra > On behalf of Apache Olympian community > > > = Apache Olympian Proposal == > > == Abstract == > > Olympian (formerly Titan) is software designed to support the processing > of graphs so large that they require storage and computational capacities > beyond what a single machine can provide. Scaling graph data processing for > real time traversals and analytical queries is Olympian’s main benefit. > > == Proposal == > > Olympian consists of about 75K of Java code under the Apache 2 license > <http://www.apache.org/licenses/LICENSE-2.0>. It supports very large > graphs, with many concurrent transactions and operational graph processing. > Olympian graphs scale with the number of machines in the cluster. Olympian > already integrates with a number of Apache projects: > > - > > Provides native support for the popular property graph data model > exposed by Apache TinkerPop <http://tinkerpop.apache.org/>. > - > > Provides native support for the Gremlin graph traversal language > defined by Apache TinkerPop for programming language agnostic connectivity. > - > > Provides graph persistence solutions with: > - > > Apache Cassandra <http://cassandra.apache.org/> > - > > Apache HBase <https://hbase.apache.org/> > - > > Provides advanced indexing with: > - > > Apache Lucene <https://lucene.apache.org/> > - > > Apache Solr <http://lucene.apache.org/solr/> > - > > Supports global graph analytics and batch graph processing through the > Apache > Hadoop <http://hadoop.apache.org/> framework with processors > implemented with: > - > > Apache Spark <http://spark.apache.org/> > - > > Apache Giraph <http://giraph.apache.org/> > > > Other software Olympian interfaces with includes: > > - > > BerkeleyDB > - > > Elasticsearch > > > == Background == > > Marko Rodriguez and Matthias Broecheler, cofounders of the Aurelius graph > consulting firm, developed the Titan distributed graph database system and > made it available under the Apache 2 license in 2012. Marko is also a > cofounder of the Apache TinkerPop project and the primary developer of the > Gremlin graph traversal language. Other developers of Titan include Dan > LaRocque, Stephen Mallette, Daniel Kuppitz, and Pavel Yaskevich. Datastax > acquired Aurelius in February 2015, prior to the Titan 1.0 release in > September 2015. > > Since Titan became available on GitHub, there have been 4434 commits, 38 > branches, 23 releases, and 35 contributors. In 2016 there has been less > activity as the original authors are busy with other software development, > but there is significant interest from the community. > > == Rationale == > > (1) There are a number of Apache projects that integrate with Titan. > > (2) Apache Atlas (incubating) <http://atlas.incubator.apache.org/> > packages and ships Titan as an essential component, yet Titan is not part > of Apache. > > (3) There are a number of existing users of Titan who are keen to continue > to develop the code. These users provide the basis of the community for the > proposed project. > > == Initial Goals == > > The initial goals are as follows: > > - > > Establish the project governance in The Apache Way and broaden the > community. > - > > Distribute an incubating release aligned with the latest Apache > TinkerPop version and prepared in accordance with the Apache release > process. > - > > Improve the documentation. > - > > Add more unit/scenario tests. > - > > Contribute functional and performance-related enhancements to the code. > > > == Current Status == > > The project will be forked off the existing Titan code base. This code has > been available under the Apache 2 License but has not been subject to the > Apache governance. The proposed project will adhere to Apache’s governance > and processes. This is one of the key benefits and reasons for bringing the > project forward as an incubator candidate. > > There are 37 pull requests currently open against Titan, and the last pull > request was merged in June 2016. During incubation, the community will > adopt a voting-based approach to review and commit those changes into the > code base in preparation for the first incubating release. > > === Meritocracy === > > The proposed project will adopt the familiar process of progression from > submitter to contributor to PMC. The community includes active committers > and PMC members on other Apache projects (e.g. Apache TinkerPop, Apache > Atlas (incubating), Apache HBase). > > === Community === > > There is an active and passionate community of existing Titan users. It is > believed that this community will continue to grow and to progress. Titan > is well-designed to support different backends, and the community will > naturally grow as more backends are written to fit into the Titan > architecture. Since the Titan 1.0 release, 3 different storage providers > have become available. Also once an incubation release is made available, > the community will likely see quick adoption from the Apache TinkerPop user > base. > > === Core Developers === > > The community includes developers from a number of vendors (e.g. Google, > HortonWorks, IBM, Mindmaps, Classmethod) and users (both academic and > commercial). It contains two active committers and PMC members from the > Apache TinkerPop project, one active committer and PPMC member from Apache > Atlas (incubating), and one committer from Apache HBase. The developers > represent a good mixture of skills, including expertise with each of the > supported providers. > > === Alignment === > > The proposed project will be used by or integrated with a number of other > Apache components, including (probably) TinkerPop, Atlas, Hadoop, Spark, > Cassandra, and HBase. It is logical that the project should also be homed > within Apache and subject to the governance principles of Apache. > > == Known Risks == > > === Orphaned products === > > All the companies and developers associated with academic institutions who > are engaged or want to be engaged with Titan are well aware of the open > source philosophy and the importance of open governance of open source > products. Hence, we think the risks of Titan being orphaned are minimal. > > === Inexperience with Open Source === > > The project is based on an existing open source code base (Titan 1.0) and > the community consists of developers and vendors who have a history and > strategy of open development and governance. The initial committers include > committers and PMC members from other Apache projects. > > === Homogenous Developers === > > The community consists of geographically-dispersed volunteers from > academic and a range of commercial organisations. The geographic diversity > includes North America, Europe, Asia, and Australia. > > === Reliance on Salaried Developers === > > Many of the developers are salaried by the vendors in the community, but > the vendors have publicly stated their support for open systems and whilst > we might expect to see some gradual replacement of members of the > community, we believe that it will remain stable and viable into the > future. All members of the community are passionate about the project and > are likely to contribute outside of ‘normal working hours’. > > === Relationships with Other Apache Products === > > The proposed project has dependencies on other Apache projects, including > Cassandra and HBase, for example. There are Apache projects that depend > upon the availability of an open, scalable graph database. Apache Atlas is > an example of such a project. Apache S2Graph (incubating) > <https://s2graph.incubator.apache.org/> is currently an incubator project > at Apache, however it does not currently implement the Apache TinkerPop > interfaces, although it has an open JIRA for that effort. > > === An Excessive Fascination with the Apache Brand === > > Whilst the Apache brand will help to attract developers and consumers to > the project, it is not for this reason that the proposal is being made. It > is to align the governance of the project with that of the other components > with which it is commonly used and to benefit from the development > principles adopted by Apache. In particular, TinkerPop is Titan’s most > critical component/dependency, one so tight that Titan releases are > contemporaneous or follow TinkerPop releases. > > == Documentation == > > Information on the existing Titan code base can be found at: > http://titan.thinkaurelius.com/ > > == Initial Source == > > The initial source will be based off a fork of the Titan code base. The > latter can be found at: https://github.com/thinkaurelius/titan. The fork > to be used as the base is from: https://github.com/pluradj/titan > > == Source and Intellectual Property Submission Plan == > > Since Datastax owns the copyright and trademark for Titan, when the > proposal is accepted to the ASF Incubator, the community will choose a > different name. It is proposed that Titan will enter incubation with the > name Olympian. The community will finalize and document the name research > during incubation. Individuals in the community have discussed the > possibility of a software grant from Datastax, but Datastax was not > interested in donating code or brand to the ASF. When asked if they would > block others taking it to Apache they did not respond. > > == External Dependencies == > > Titan has the following external dependencies: > > * Java 1.8 > > * Apache Maven 3.0.5 (Apache 2.0 License) > > * JUnit 4.12 (EPL) > > * MRUnit 1.1.0 (Apache 2.0 License) > > * Apache Cassandra (Apache 2.0 License) > > * Jamm (Apache 2.0 License) > > * Metrics 2.1.1 and 3.0.1 (Apache 2.0 License) > > * Sesame 2.7.10 (Eclipse Public License Version 1.0) > > * slf4j 1.7.5 (MIT) > > * Apache HTTPComponents 4.4.1 (Apache 2.0 License) > > * Apache Hadoop 1.2.1 & 2.7.1 (Apache 2.0 License) > > * Apache HBase (Apache 2.0 License) > > * Jackson 1.9.2 & 2.4.4 (Apache 2.0 License) > > * Apache Lucene 4.10.4 (Apache 2.0 License) > > * Elasticsearch 1.5.1 (Apache 2.0 License) > > * Apache Commons Beanutils 1.7.0 (Apache 2.0 License) > > * Joda Time 1.6.2 (Apache 2.0 License) > > * Google ConcurrentLinkedHashMap (Apache 2.0 License) > > * Antlr 2.7.7 And 3.2 (BSD License) > > * ASM 3 & 4 (http://asm.ow2.org/license.html) > > * Apache Zookeeper 3.4.6 (Apache 2.0 License) > > * Jersey 1.9 (CDDL 1.1 and GPL v2) > > * JNA 4.0.0 (LGPL 2.1 and Apache 2.0 License) > > * Kuali Maven s3 Wagon 1.1.20 (Educational Community License, Version 2.0) > > * Apache Tomcat Jasper 5.5.23 (Apache 2.0 License) > > * Berkeley DB 5.0.73 (Sleepycat License) > > Upon acceptance to the incubator, we would begin a thorough analysis of > all transitive dependencies to verify this information and introduce > license checking into the build and release process by integrating with > Apache Rat. In the case where a dependency has an Apache incompatible > license, such as Berkeley DB, we will remove or replace it with an > appropriate alternative. > > == Cryptography == > > Titan will support encryption of client-server communication through its > use of the Apache TinkerPop Gremlin Server. We do not expect Titan to be a > controlled export due to its use of encryption. > > == Required resources == > > === Mailing lists === > > * priv...@olympian.incubator.apache.org (with moderated subscriptions) > > * comm...@olympian.incubator.apache.org > > * d...@olympian.incubator.apache.org > > * u...@olympian.incubator.apache.org > > === Git Repository === > > The team would like to use git for source control. We request a writable > git repo https://git-wip-us.apache.org/repos/asf/incubator-olympian.git, > and mirroring to be set up to GitHub through INFRA. We also request > configuration for continuous integration with Travis CI. > > === Issue Tracking === > > Titan currently uses the GitHub issue tracker and the team would like to > migrate all of these issues to the Apache JIRA. > > == Initial Committers == > > Dylan Bethune-Waddell - dylan.bethune.wadd...@mail.utoronto.ca > > Mathias Bogaert - mathias.boga...@gmail.com > > Misha Brukman - mbruk...@google.com > > Felix Chapman - fe...@mindmaps.io > > Sheldon Hall - shel...@mindmaps.io > > Jing Chen (Jerry) He - jerry...@apache.org > > Madhan Neethiraj - mneethi...@hortonworks.com > > Alexander Patrikalakis - a...@me.com > > Jason Plurad - plur...@apache.org > > Suma Shivaprasad - suma...@apache.org <sum...@apache.org> > > Lindsay Smith - lindsaysm...@google.com > > Filipe Teixeira - fppintoteixe...@gmail.com > > Ted Wilmes - twil...@apache.org > > == Affiliations == > > Dylan Bethune-Waddell - Jurisica Lab, Princess Margaret Cancer Centre, UHN > > Mathias Bogaert - Independent Contractor > > Misha Brukman - Google > > Felix Chapman - Mindmaps > > Sheldon Hall - Mindmaps > > Jing Chen (Jerry) He - IBM > > Madhan Neethiraj - HortonWorks > > Alexander Patrikalakis - Classmethod, Inc. > > Jason Plurad - IBM > > Suma Shivaprasad - HortonWorks > > Lindsay Smith - Google > > Filipe Teixeira - Mindmaps > > Ted Wilmes - Expero Inc. > > == Sponsors == > > === Champion === > > Henry Saputra - hsapu...@apache.org > > === Nominated Mentors === > > Alan Gates - ga...@apache.org > > P. Taylor Goetz - ptgo...@apache.org > > Henry Saputra - hsapu...@apache.org > > Michael Stack - st...@apache.org > > === Sponsoring Entity === > > The Apache Incubator > >
