If you're at the point where you need to attach a debugger, in production, you have already lost. I don't care how much you like debuggers and debugging. Anythi

If you're at the point where you need to attach a debugger, in production, you have already lost. I don't care how much you like debuggers and debugging. Anything, but the most trivial, single-threaded code will be problematic to debug. So? What do you do? Logging at the right level + turn up logging. Metrics - proper metrics. Core dumps. Debugging turns into an exercise of grepping/inspecting the logs/metrics and/or working with the dump. Anyone that tells you differently is massaging the truth.