Is the Bluemix graph database service running a regular version of Titan under the hood? won't it be phased out given the TitanDB acquisition, and how can it claim tinkerpop version 3 at a time when the open-sourced version of Titan is still at tinkerpop version 2?
Titan has continued development after the DataStax acquisition of Aurelius. Titan's lead developer Matthias Broecheler posted on the Titan mailing list in February 2015 after the acquisition announcement that Titan would continue on and have an open source release based on TinkerPop3. https://groups.google.com/d/msg/aureliusgraphs/WTNYYpUyrvw/pZh02Q2LlpsJ
Matthias Broecheler will be presenting at the DataStax Cassandra Summit on the Titan 1.0 release. http://cassandrasummit-datastax.com/agenda/titan-1-0-scalable-real-time-and-analytic-graph-queries/
DataStax has a strong reputation for supporting open source technology, as evidenced by their continued support of the Apache Cassandra project.
Your question is not really about a coding issue. The linked document about the Bluemix graph database service explicitly states that it is based on Apache TinkerPop. The Titan Database is also based on Apache TinkerPop according to the Apache TinkerPop website.
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I have to do an assignment with multiple databases, and I was thinking in polyglot persistence between MongoDB an Neo4j. I have seen some of the documentation for the Neo4j doc manager, and the last time it was updated was in 2016, and it has a build fail on github. I still tried to use it, but then I had this problem and could not install py2neo 2.0.7.
Is there a solution for this, or should i give up on Neo4j doc manager?
Neo4j Doc Manager is discontinued as the last commit was 5 years ago.
You can use any APOC mongoDB procedure that are available at https://neo4j.com/labs/apoc/4.3/overview/apoc.mongodb/. In any case, you will have to develop your own ETL tool, perhaps with Apache Hop or Talend.
Looking for caching layer sitting on top of postgres like Redis…
If we change anything in memory it should get updated to Postgres…open source out of box integration between in memory and postgres…
I believe we can do with apache ignite..can you please point me how to do it? or any other in memory solution with Postgres
What is difference between grid gain and apache ignite?
Yes, the desired behavior could be achieved with Apache Ignite. You need to use CacheStore for 3rd party databases. You can even generate an Apache Ignite configuration that can handle the matter by parsing your existing schema through a JDBC connection. GridGain Community Edition is a source-available fork of Apache Ignite maintained by GridGain Systems (original author of Apache Ignite).
Is there a Scala client library for Apache OpenWhisk?
The short answer is that there isn’t an Apache community supported Scala client. There is quite a bit to seed such an implementation from the Scala REST and CLI bindings defined by this interface https://github.com/apache/openwhisk/blob/fcbe9ca83829f2194b47f7c61a166396838c6a44/tests/src/test/scala/common/WskOperations.scala#L163 but it is not a standalone client.
If it’s something you’re interested in contributing to the project and community, you should reach out on the Apache project dev list as noted in one of the comments above.
As far as i have searched, keylines were installed in titan only with rexster. Can we install keylines graph visualization with Titan-1.0.0-hadoop1? There were do documents available for it as well.
It is listed on the KeyLines website. http://cambridge-intelligence.com/keylines/titan/
Quick start guide is available for Titan 1.0 but you have to register with them first.
See also this TinkerPop 3 specific blog linked from the previous link http://cambridge-intelligence.com/visualizing-graphs-tinkerpop3-migration-guide/
I am planning to use orientdb in production using the jdbc drive so i need confirm some points
is jdbc driver can give all the orientdb Features like (transaction and links ...etc) or using the the java api is the best choice
I noticed that you have spring data implementation in the orientdb github is it ready to use in the production
At this link a discussion on the issue that you wrote.
in general, JDBC driver supports only a subset of OrientDB, only the part you can use with commands.
If you're a Java developer, I suggest you to use the Java Graph API: http://orientdb.com/docs/last/Graph-Database-Tinkerpop.html