Common errors

Certain errors have cropped up multiple times for hpcFlow users. Here’s some advice for those errors.

Submitting a workflow

If you get an error which (often) starts with

ERROR hpcflow.app.persistence: batch update exception!

and ends with something like

File "hpcflow/sdk/app.py", line 1150, in read_known_submissions_file
File "hpcflow/sdk/app.py", line 1122, in _parse_known_submissions_line
ValueError: not enough values to unpack (expected 8, got 6)

This is usually caused by updating the hpcFlow version. Leftover submissions info causes the newer hpcFlow version to get confused. The fix? hpcflow manage clear-known-subs. This will delete the known submissions file, and the next time you submit a workflow, hpcFlow will create a new one.