janusgraph VS RedisGraph

First, you need to choose a specific graph database platform to work with, such as Neo4j, OrientDB, JanusGraph, Arangodb or Amazon Neptune. Once you have selected a platform, you can then start working with graph data using the platform's query language.

JanusGraph

There were a couple years where it was mostly abandoned. Good to see this solid graph database being well maintained. the milestones[1] mostly show a lot of upgrading libraries, some enhancements/features sprinkled in, but for a while Janus was nearly abandoned.

Maintenance re-started in 2017, with IBM & Google stepping up to back it[2].

[1] https://github.com/JanusGraph/janusgraph/milestones?state=cl...

[2] https://architecht.io/google-ibm-back-new-open-source-graph-...

QOMPLX partnered with the graph database experts at Expero to implement their system with JanusGraph, which uses Scylla as an underlying fast and scalable storage layer. We had the privilege to learn from their use case at Scylla Summit this January, which we share with you today.

At the time of writing this article, JanusGraph's latest release page on GitHub says that JanusGraph is compatible with Cassandra 3.11.0. So I will get this version's download link from the Apache Cassandra archive, and I will use the wget shell command to download it to my /opt directory. Then I will use the tar command to extract the contents of the downloaded archive.

This approach reminds me of RedisGraph[1] (which is now unfortunately EoL).

"RedisGraph is the first queryable Property Graph database to use sparse matrices to represent the adjacency matrix in graphs and linear algebra to query the graph."

1. https://github.com/RedisGraph/RedisGraph

It's also my impression that redis-graph uses Gherkin (the language of Cucumber) while the redis server relies on Tcl for testing. So is Tcl is a valid choice for BDD in C++ ? (redis is C, but any such framework would immediately be transferable).

Redis - Graph

So that we don’t give an ex-inmate the option of crime, let’s get them reintegrated into society faster. Dating a person who has also been in the system could be a faster way to achieve that. To matchmake both entities, we need to consider their peculiar dating interests. The more data we have for these interests, the more we can give the perfect match. Usually, when building a social tool that involves complex relationships amongst entities, it is recommended to use a graph database such as RedisGraph. We may explore this later as we progress. But not to complicate things, for now, we would rather store these interests coming from various Omni-channels such as social media, sms, online forms, text, etc. in JSON. Often, this is the first step of the data analysis process known as data collection.

$ git clone https://github.com/RedisGraph/RedisGraph -b v2.4.11 --recurse-submodules -j8 Cloning into 'RedisGraph'... remote: Enumerating objects: 49063, done. remote: Counting objects: 100% (2906/2906), done. remote: Compressing objects: 100% (1082/1082), done. remote: Total 49063 (delta 1998), reused 2448 (delta 1736), pack-reused 46157 Receiving objects: 100% (49063/49063), 39.33 MiB | 114.00 KiB/s, done. Resolving deltas: 100% (38402/38402), done. Submodule 'deps/RediSearch' (https://github.com/RediSearch/RediSearch.git) registered for path 'deps/RediSearch' Submodule 'deps/googletest' (https://github.com/google/googletest.git) registered for path 'deps/googletest' Submodule 'deps/libcypher-parser' (https://github.com/RedisGraph/libcypher-parser.git) registered for path 'deps/libcypher-parser' Submodule 'deps/rax' (https://github.com/antirez/rax.git) registered for path 'deps/rax' Submodule 'deps/readies' (https://github.com/RedisLabsModules/readies.git) registered for path 'deps/readies' Submodule 'deps/xxHash' (https://github.com/Cyan4973/xxHash.git) registered for path 'deps/xxHash' Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/RediSearch'... remote: Enumerating objects: 34395, done. remote: Counting objects: 100% (1802/1802), done. remote: Compressing objects: 100% (1097/1097), done. remote: Total 34395 (delta 1150), reused 1182 (delta 696), pack-reused 32593 Receiving objects: 100% (34395/34395), 23.62 MiB | 71.00 KiB/s, done. Resolving deltas: 100% (25261/25261), done. Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/rax'... remote: Enumerating objects: 668, done. remote: Counting objects: 100% (25/25), done. remote: Compressing objects: 100% (14/14), done. remote: Total 668 (delta 12), reused 19 (delta 11), pack-reused 643 Receiving objects: 100% (668/668), 236.14 KiB | 1.41 MiB/s, done. Resolving deltas: 100% (414/414), done. Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/readies'... remote: Enumerating objects: 2354, done. remote: Counting objects: 100% (833/833), done. remote: Compressing objects: 100% (329/329), done. remote: Total 2354 (delta 608), reused 675 (delta 503), pack-reused 1521 Receiving objects: 100% (2354/2354), 390.69 KiB | 17.00 KiB/s, done. Resolving deltas: 100% (1577/1577), done. Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/libcypher-parser'... remote: Enumerating objects: 3250, done. remote: Counting objects: 100% (68/68), done. remote: Compressing objects: 100% (46/46), done. remote: Total 3250 (delta 42), reused 43 (delta 21), pack-reused 3182 Receiving objects: 100% (3250/3250), 2.10 MiB | 28.00 KiB/s, done. Resolving deltas: 100% (2488/2488), done. Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/xxHash'... remote: Enumerating objects: 4784, done. remote: Counting objects: 100% (345/345), done. remote: Compressing objects: 100% (188/188), done. remote: Total 4784 (delta 189), reused 255 (delta 143), pack-reused 4439 Receiving objects: 100% (4784/4784), 2.54 MiB | 27.00 KiB/s, done. Resolving deltas: 100% (2922/2922), done. Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/googletest'... remote: Enumerating objects: 23334, done. remote: Counting objects: 100% (234/234), done. remote: Compressing objects: 100% (142/142), done. remote: Total 23334 (delta 120), reused 146 (delta 81), pack-reused 23100 Receiving objects: 100% (23334/23334), 9.49 MiB | 44.00 KiB/s, done. Resolving deltas: 100% (17191/17191), done. Submodule path 'deps/RediSearch': checked out '68430b3c838374478dd9ffe4e361534f572b16ff' Submodule 'deps/googletest' (https://github.com/google/googletest.git) registered for path 'deps/RediSearch/deps/googletest' Submodule 'deps/readies' (https://github.com/RedisLabsModules/readies.git) registered for path 'deps/RediSearch/deps/readies' Cloning to '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/RediSearch/deps/googletest'... remote: Enumerating objects: 23334, done. remote: Counting objects: 100% (234/234), done. remote: Compressing objects: 100% (148/148), done. remote: Total 23334 (delta 120), reused 141 (delta 75), pack-reused 23100 Receiving objects: 100% (23334/23334), 9.56 MiB | 1.05 MiB/s, done. Resolving deltas: 100% (17185/17185), done. Kloning ke '/home/bpdp/master/postdoc-ugm/RedisGraph/deps/RediSearch/deps/readies'... remote: Enumerating objects: 2354, done. remote: Counting objects: 100% (833/833), done. remote: Compressing objects: 100% (329/329), done. remote: Total 2354 (delta 608), reused 675 (delta 503), pack-reused 1521 Receiving objects: 100% (2354/2354), 390.69 KiB | 853.00 KiB/s, done. Resolving deltas: 100% (1577/1577), done. Submodule path 'deps/RediSearch/deps/googletest': checked out 'dea0216d0c6bc5e63cf5f6c8651cd268668032ec' Submodule path 'deps/RediSearch/deps/readies': checked out '89be267427c7dfcfaab4064942ef0f595f6b1fa3' Submodule path 'deps/googletest': checked out '565f1b848215b77c3732bca345fe76a0431d8b34' Submodule path 'deps/libcypher-parser': checked out '38cdee1867b18644616292c77fe2ac1f2b179537' Submodule path 'deps/rax': checked out 'ba4529f6c836c9ff1296cde12b8557329f5530b7' Submodule path 'deps/readies': checked out 'd59f3ad4e9b3d763eb41df07567111dc94c6ecac' Submodule path 'deps/xxHash': checked out '726c14000ca73886f6258a6998fb34dd567030e9' $