Question 1

How do I install Jubilee with a Rails application?

Accepted Answer

Install JRuby and JDK first, then add Jubilee to your Gemfile. Run it with the 'jubilee' command, but tune JVM options like -Xmx2048m to prevent OutOfMemoryError, as mentioned in the Rails setup section of the README.

Question 2

Is Jubilee better than Puma for real-time apps?

Accepted Answer

Yes, Jubilee is superior for real-time applications due to its Event Bus and Vert.x foundation, while Puma is more general-purpose and works with MRI Ruby. Choose Jubilee if you need JRuby-based real-time features and clustering.

Question 3

Does Jubilee support WebSockets?

Accepted Answer

Indirectly, through its Event Bus integration, which enables real-time communication similar to WebSockets. The chatapp example demonstrates this with client-server messaging using JavaScript.

Question 4

What JVM settings should I use to avoid memory issues with Jubilee?

Accepted Answer

The README recommends setting JAVA_OPTS with values like -Xms1024m -Xmx2048m to prevent OutOfMemoryError. For high connection rates, also tune OS-level TCP settings such as net.core.somaxconn.

Question 5

Can I use Jubilee with all my existing Ruby gems?

Accepted Answer

No, since it runs on JRuby, some MRI-specific gems or C extensions may not be compatible. Check gem compatibility with JRuby before migrating to Jubilee.

Question 6

How does Jubilee handle clustering for distributed apps?

Accepted Answer

It uses Vert.x's clustering capabilities, allowing multiple instances to share data and communicate via the Event Bus. Refer to the Clustering wiki page for configuration details.

Jubilee

What is Jubilee?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions