Question 1

How do I enable SSL for Blazegraph in production?

Accepted Answer

Uncomment and configure the jetty.xml file for SSL, as per the README, which involves setting up a keystore. This requires manual steps and lacks out-of-the-box encryption.

Question 2

Blazegraph vs Neo4j: which is better for large-scale graphs?

Accepted Answer

Blazegraph excels at single-machine scale up to 50 billion edges, while Neo4j offers more ecosystem tools and native clustering. Choose based on your need for vertical scaling versus distributed features.

Question 3

How to configure authentication in Blazegraph with Tomcat?

Accepted Answer

First set up a Tomcat Realm, then uncomment the security-constraint in web.xml. The README links to Tomcat documentation, but it requires hands-on configuration without guided wizards.

Question 4

Does Blazegraph support distributed graph processing?

Accepted Answer

Blazegraph is optimized for high performance on a single machine; for distributed needs, you may need alternatives, as it focuses on vertical scaling rather than horizontal clustering.

Question 5

What are best practices for securing Blazegraph multi-tenancy?

Accepted Answer

Use authentication combined with reverse-proxy configurations to restrict access to specific namespace URIs, since the base URI allows access to all namespaces, as noted in the README.

Question 6

How to migrate from Tinkerpop 2.5 to Tinkerpop 3 in Blazegraph?

Accepted Answer

Tinkerpop3 support is in a separate repository and requires Java 1.8. Use the blazegraph-gremlin artifact on Maven Central and check the Tinkerpop3 repo for examples, adding migration complexity.

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