Hi, thank you for your reply.
Here is information that you've asked :
number of prcesses is set to 1, so there is not connection with this
worker log is showing nothing - because in period when supervisor started to "loosing control" of child process - there were no jobs for processing.
according starting / ending supervisord - i've done it according to docs.
additionaly :
usualy I see that supervisor "hosts" processes, but - when supervisor "loosing control"
all process are out of supervisor control and just using supervisorctl stop all is not helping