Produits Entr'ouvert » w.c.s.

erreur "Too many open files" dans un job asynchrone, après avoir fait beaucoup de création de PDF,

'exception': 'Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/wcs/qommon/afterjobs.py", line 83, in run
    self.execute()
  File "/usr/lib/python3/dist-packages/wcs/backoffice/data_management.py", line 374, in execute
    data_instance.perform_workflow()
  File "/usr/lib/python3/dist-packages/wcs/formdata.py", line 521, in perform_workflow
    url = perform_items(wf_status.items, self)
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 86, in perform_items
    url = perform_items(wf_status.items, formdata, depth=depth - 1) or url
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 86, in perform_items
    url = perform_items(wf_status.items, formdata, depth=depth - 1) or url
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 86, in perform_items
    url = perform_items(wf_status.items, formdata, depth=depth - 1) or url
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 71, in perform_items
    url = item.perform(formdata) or url
  File "/usr/lib/python3/dist-packages/wcs/wf/create_formdata.py", line 436, in perform
    new_formdata.perform_workflow()
  File "/usr/lib/python3/dist-packages/wcs/formdata.py", line 521, in perform_workflow
    url = perform_items(wf_status.items, self)
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 86, in perform_items
    url = perform_items(wf_status.items, formdata, depth=depth - 1) or url
  File "/usr/lib/python3/dist-packages/wcs/workflows.py", line 71, in perform_items
    url = item.perform(formdata) or url
  File "/usr/lib/python3/dist-packages/wcs/wf/export_to_model.py", line 731, in perform
    self.perform_real(formdata, formdata.evolution[-1])
  File "/usr/lib/python3/dist-packages/wcs/wf/export_to_model.py", line 734, in perform_real
    outstream = self.apply_template_to_formdata(formdata)
  File "/usr/lib/python3/dist-packages/wcs/wf/export_to_model.py", line 498, in apply_template_to_formdata
    return transform_to_pdf(outstream)
  File "/usr/lib/python3/dist-packages/wcs/wf/export_to_model.py", line 110, in transform_to_pdf
    stderr=subprocess.PIPE,
  File "/usr/lib/python3.7/subprocess.py", line 472, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib/python3/dist-packages/sentry_sdk/integrations/stdlib.py", line 187, in sentry_patched_popen_init
    rv = old_popen_init(self, *a, **kw)
  File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1412, in _execute_child
    errpipe_read, errpipe_write = os.pipe()
OSError: [Errno 24] Too many open files

(il peut y avoir des fd leakés ailleurs, mais prenons celui-ci ici).

(on peut aussi chercher voir comment augmenter le nombre de fd autorisés, ici l'erreur me semble quand même avoir été levée relativement tôt).