Hi all, as promised, I have updated the Gelly roadmap [1]. Below, I am describing and reasoning about the changes I made. Please, let me know whether you agree and if you have any other ideas for further improvements and feature additions.
*1. Operators for highly skewed graphs*: I have removed this item completely. It referred to Andra's master thesis which has been completed. We had a discussion back then (see [2]), but no activity after that. *2. Scala API*: I removed this item because it's done 🎆 *3. Graph Streaming*: I removed this item also. We have built an experimental API for graph streaming with Paris and KTH students. The code is available in [3]. If you think it would be a valuable addition as a library to Flink, we can start a separate discussion thread about it. *4. Library Methods*: - Affinity Propagation: this is WIP in FLINK-1707 - HITS + Adsorption: Removed. They were started by TUB students and not finished. I propose to only revisit these only if someone asks for them. - Strongly CC + DIA: Removed. Nobody has worked on them AFAIK. *5. Graph partitioning*: This is still relevant in my opinion and thus I kept it in the updated roadmap. *6. Partition-centric iterations*: We have created a POC implementation with KTH students [4]. In my opinion, it would be nice to add this to Gelly and most of the work has already been done, so I kept it. *7. Generic Iterations*: This requires caching intermediate results. Anyone has a status update on that? *8. Performance evaluation*: I'm currently working on this, integrating Gelly with the Graphalytics benchmark. My WIP is in [5] in case you want to get involved :) *9. Bipartite support*: This is still relevant in my opinion. Someone had started working on it, but has been inactive for a while. I pinged the JIRA (FLINK-2254). >From the wishlist: - *Neo4j* input/output formats have been implemented as an external project by Martin Junghanns. Shall we go ahead and them to project-flink? We should definitely link to this from the third-party packages. - *TinkerPop*: Discussion started from the TinkerPop community, but there was not much activity from our side [6]. I wrote my opinion then and I am very much in favor. Anyone else wants to share their thoughts? Looking forward to your input, -Vasia. [1]: https://cwiki.apache.org/confluence/display/FLINK/Flink+Gelly [2]: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Proposal-Addition-to-Gelly-td7436.html [3]: https://github.com/vasia/gelly-streaming [4]: https://github.com/vasia/gelly-partition-centric [5]: https://github.com/vasia/graphalytics-platforms-gelly [6]: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/Apache-Tinkerpop-amp-Geode-Integration-td9252.html
