Debugging stuck Ruby processes | Mike Perham2016-08-05 My Ruby process has stopped doing any work, what’s wrong? This is an uncommon but occasional problem for many people, especially with large applications using lots of native extensions. Step 1 - Thread backtraces A Sidekiq process will print out the backtrace of every thread when you send it the TTIN signal. kill -TTIN <pid> Side note: YMMV for other types of Ruby processes: resque, uni
