Hi Filip,
could you perhaps run the attached file on the test machine (with
`py.test vdir_test.py`, py.test is needed for the creation of a temp
directory).
On my machine the output looks like this:
[(0, 10), (0.0001, 8), (0.001, 0), (0.01, 0), (0.1, 0), (1, 0)]
Similar experiments before made me choose the current delay.
Best regards,
Christian
Quoting Filip Pytloun (2016-11-24 00:20:50)
> On 2016/11/24 00:00, Santiago Vila wrote:
> > Try using a chroot without union-type=overlay.
>
> Unfortunately it will result in the same error :-/
import os
import time
def get_etag_from_file(f):
'''Get mtime-based etag from a filepath or file-like object.
This function will flush/sync the file as much as necessary to obtain a
correct mtime.
'''
stat = os.stat(f)
mtime = getattr(stat, 'st_mtime_ns', None)
if mtime is None:
mtime = stat.st_mtime
return '{:.9f}'.format(mtime)
def test_etag(tmpdir):
fpath = os.path.join(str(tmpdir), 'foo')
stats = dict()
for delay in [0, 0.0001, 0.001, 0.01, 0.1, 1]:
failed = list()
for one in range(10):
file_ = open(fpath, 'w')
file_.write('foo')
file_.close()
old_etag = get_etag_from_file(fpath)
time.sleep(delay)
file_ = open(fpath, 'w')
file_.write('bar')
file_.close()
new_etag = get_etag_from_file(fpath)
if old_etag == new_etag:
failed.append(
(one, new_etag)
)
stats[delay] = len(failed)
print(sorted(stats.items()))
assert False # here to make sure we get the print output via py.test
