The Titan community is serviced by the aureliusgraphs Google group, which is actually moderated by Datastax employees. I started a thread last week about continuing progress with Titan at Apache [1]. The intent with this proposal is not to fracture the Titan community, rather to preserve it. The community has been concerned about this for a long time with little response from Datastax [2][3][4].
Development on Titan by Datastax appears to be abandoned. The latest release of Titan was over a year ago. There is a titan11 branch with more recent development, but the last commit on that branch was 4 months ago. There are many pull requests ready for review/merge, including one to update Apache TinkerPop support, but those appear to be waiting on efforts from the lead Titan developers when they are free to do so [5]. The two lead developers of Titan have not appeared on the Google group in over 6 months. The last message from Matthias: September 2015, Dan: March 2016. We are aware of potential issues with the name Olympian. If accepted into the incubator, further research and consideration on selecting a new name will be done, as described in the proposal. -- Jason [1] Sep 19 https://groups.google.com/d/msg/aureliusgraphs/jEN_7QwVXZ4/mz3gik-FAgAJ [2] Apr 11 https://groups.google.com/d/msg/aureliusgraphs/R0RJnvVbgCs/vkYEsXD3HgAJ [3] Jun 30 https://groups.google.com/d/msg/aureliusgraphs/8chVUNHqHTA/i-N5b0Q3BQAJ [4] Jan 7 https://groups.google.com/d/msg/aureliusgraphs/e5L5M6MQozY/QHXtx5hFAwAJ [5] May 4 https://github.com/thinkaurelius/titan/pull/1312 On Thu, Sep 29, 2016 at 9:03 AM, Susan Malaika <mala...@us.ibm.com> wrote: > Hi JB > Datastax know about the incubator effort. As far as I know they will not > sign the grant agreement. I was under the impression that the incubator > proposal can proceed after discussion if there is sufficient community > interest. > Susan Malaika > > -----Jean-Baptiste Onofré <j...@nanthrax.net> wrote: ----- > To: general@incubator.apache.org > From: Jean-Baptiste Onofré <j...@nanthrax.net> > Date: 09/29/2016 08:43AM > Subject: Re: [DISCUSS] Olympian Incubation Proposal > > Hi Henry, > > Is DataStax know and agree with the fork ? > > Else, the Software Grant Agreement won't be possible and it won't be > able to easy to head to graduation. > > Regards > JB > > On 09/29/2016 06:01 AM, Henry Saputra 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 > > > > -- > Jean-Baptiste Onofré > jbono...@apache.org > http://blog.nanthrax.net > Talend - http://www.talend.com > > --------------------------------------------------------------------- > 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 > >
