Let's say I have a number of existing workers running in supervisord. I want to add a new worker to the group as well as start the new worker. I perform the following steps:

  1. I modify the file /etc/supervisor/supervisord.conf and add the new worker config
  2. Back on the command line, I enter sudo supervisorctl
  3. I run reread to read the new configuration file settings.
  4. Attempting to run start workers:exampleWorkerName gives the error workers:"exampleWorkerName": ERROR (no such process)

So, my question is, how can I start this new worker process without affecting my other existing workers? I'd rather not perform a supervisorctl reload or /etc/init.d/supervisord restart command.

3 Answers 3


You also need to run supervisorctl update.

  • Running supervisorctl update will unfortunately restart all workers. Here's a sample of the output: workers: stopped followed by workers: updated process group. The worker status shows they were all restarted. Aug 2, 2013 at 14:58
  • I should probably also say that I am using groups allowing me to restart all workers at once, so this might be the cause. Aug 2, 2013 at 15:22

This command only updates the changes

supervisorctl reread

Restarts the applications whose configuration has changed.

supervisorctl update.


supervisorctl restart all

If you are still interested, after running

supervisorctl reread

you can try running

supervisorctl add <newWorker>

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