removing excess controller error

[ebagies]

hi,

There is an experiment which work many times but some time it stop and printing this error:
invalid literal for int() with base 10: 'error while connecting to the forwarder (No such file or directory) ...

I need help to understand this error message.

Thanks in advance,,
Enas

[agawande]

Maybe NFD from previous experiment is not killed properly? Can you check in ps aux?