The application shuts down with error 'Cannot set property 'lookup' of undefined(dgram.js:147:20)'

[tarunjadhwani]

We recently moved from pm2 to using supervisor with cluster-master, application yesterday went down due to a fatal error and I've this in logs:

dgram.js:147
  newHandle.lookup = self._handle.lookup;
                                 ^
TypeError: Cannot set property 'lookup' of undefined
    at replaceHandle (dgram.js:147:20)

Could you please give some insights on this, like if this issue is because of cluster-master or some wrong implementation from my side.