"live" streaming (Rails 4.x) likely broken

[kares]

due magic-threading in ActionController::Live "middleware" ...

This issue seems to be lacking activity, you can change that by posting a bounty.

[WiseMaestro]

I can confirm that this causes my application (using trinidad) to deadlock.

Would it be possible to use java threads as a drop in replacement for "magic-threading" (what does that mean?) to get this to work?

[kares]

Ruby threads use Java threads the problem is the way they're used in Rails - simply not "thread-safe" code.
For Trinidad/JRuby-Rack there would be a better solution to this leveraging servlet async support - ideally Rails core would hide the threaded impl under some class that could than be replaced at runtime - so it's some work to be done, go for it!

[loganb]

Is the nature of the problem documented with greater detail anywhere? I'm trying to understand what part of the Live middleware is thread-unsafe.

[kares]

it dead locks - that's all there is (for now) ... I have not looked deeper and I have not tracked if anyone else did ... sorry

[rthbound]

Has anyone tried this against the rails 5 betas?
http://weblog.rubyonrails.org/2016/2/27/Rails-5-0-beta3/