• Jérome Perrin's avatar
    librecipe/execute: fallback to polling when inotify fails · 8b232c01
    Jérome Perrin authored
    When user ran out of inotify watch, starting wrappers using
    wait-for-files is not possible:
    
        AssertionError: Traceback (most recent call last):
          File "/srv/slapgrid/slappart15/tmp/tmpzurwmg4q/wrapper", line 13, in <module>
            sys.exit(slapos.recipe.librecipe.execute.generic_exec(['/bin/echo', 'done'], wait_list=['/srv/slapgrid/slappart15/tmp/tmpzurwmg4q/wait']))
          File "/srv/slapgrid/slappart15/srv/project/slapos-clean/slapos/recipe/librecipe/execute.py", line 100, in generic_exec
            _wait_files_creation(wait_list)
          File "/srv/slapgrid/slappart15/srv/project/slapos-clean/slapos/recipe/librecipe/execute.py", line 30, in _wait_files_creation
            watchdescriptors = {inotify.add_watch(dirname,
          File "/srv/slapgrid/slappart15/srv/project/slapos-clean/slapos/recipe/librecipe/execute.py", line 30, in <dictcomp>
            watchdescriptors = {inotify.add_watch(dirname,
          File "/srv/slapgrid/slappart15/srv/project/venv/lib/python3.9/site-packages/inotify_simple.py", line 110, in add_watch
            return _libc_call(_libc.inotify_add_watch, self.fileno(), fsencode(path), mask)
          File "/srv/slapgrid/slappart15/srv/project/venv/lib/python3.9/site-packages/inotify_simple.py", line 39, in _libc_call
            raise OSError(errno, os.strerror(errno))
        OSError: [Errno 28] No space left on device
    
    This catches inotify errors and fallback to simple polling in that case.
    8b232c01
test_wrapper.py 9.69 KB