Too many open files

[francoislaurent]

TODO: investigate the following error during call to RWAnalyzer.run() with SingularitySlurm environment:

Traceback (most recent call last):
  File "/master/home/flaurent/scratch/tmp.07K069ybpD/tmpohae94ld.py", line 12, in <module>
  File "/usr/local/lib/python3.6/dist-packages/tramway/analyzer/env/environments.py", line 612, in _combine_analyses
  File "/usr/lib/python3.6/tempfile.py", line 483, in mkstemp
  File "/usr/lib/python3.6/tempfile.py", line 401, in _mkstemp_inner
OSError: [Errno 24] Too many open files: '/master/home/flaurent/scratch/tmp.07K069ybpD/tmp1k6vvkjl.rwa'

[francoislaurent]

The above issue is actually hit on one HPC server (GPUlab) and not others (e.g. Maestro).

Upcoming tramway 0.6.2 will bring various optimizations related to open and temporary files, but these optimizations do not seem to help in this specific case.