Cancelling workflow does not kill parsl_utils/main.sh

[stefangary]

When I start a parsl_utils workflow, if I cancel it in the GUI, parsl_utils/main.sh (and subprocesses - which includes the Parsl workflow script main.py in the workflow child processes that are launched once parsl_utils/main.sh finishes the workflow setup) is still running. For example:

sfgary@pw-user-sfgary:~/pw$ ps -u sfgary -HF
UID        PID  PPID  C    SZ   RSS PSR STIME TTY          TIME CMD
sfgary    2961     1  0  1206  2060   0 14:42 ?        00:00:00 bash parsl_utils/main.sh
sfgary    3232  2961  0 405188 115464 6 14:42 ?        00:00:07   python3 -u main.py
sfgary    3291  3232  4 314783 106064 8 14:42 ?        00:00:53     python3 -u main.py
sfgary    3306  3232  4 404899 106248 6 14:42 ?        00:00:53     python3 -u main.py

What is also really unclear to me is why there are two python3 -u main.py child sub processes running - shouldn't there be only one? Perhaps there is one for each interchange that is starting up - the example above is for a two-site workflow (MDLite).