sqlite3.OperationalError: database is locked during __aexit__

[atemate]

Code

async def _parse_neuro_image(image: str) -> neuro_api.RemoteImage:
    async with neuro_api.get() as client:
        return client.parse.remote_image(image)

runs in parallel (5 parallel processes). Sometimes we get errors:

Exception ignored in: <function BaseEventLoop.__del__ at 0x7f45726a94d0>
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/asyncio/base_events.py", line 626, in __del__
    source=self)
ResourceWarning: unclosed event loop <_UnixSelectorEventLoop running=False closed=False debug=False>
Exception ignored in: <socket.socket fd=21, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0>
ResourceWarning: unclosed <socket.socket fd=21, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0>
Exception ignored in: <socket.socket fd=22, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0>
ResourceWarning: unclosed <socket.socket fd=22, family=AddressFamily.AF_UNIX, type=SocketKind.SOCK_STREAM, proto=0>
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.7.9/x64/bin/neuro-extras", line 33, in <module>
    sys.exit(load_entry_point('neuro-extras', 'console_scripts', 'neuro-extras')())
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/home/runner/work/neuro-extras/neuro-extras/neuro_extras/main.py", line 865, in image_build
    force_overwrite=force_overwrite,
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/cli/asyncio_utils.py", line 122, in run
    return runner.run(main)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/cli/asyncio_utils.py", line 54, in run
    return self._loop.run_until_complete(main_task)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/asyncio/base_events.py", line 587, in run_until_complete
    return future.result()
  File "/home/runner/work/neuro-extras/neuro-extras/neuro_extras/main.py", line 760, in _build_image
    target_image = await _parse_neuro_image(image_uri)
  File "/home/runner/work/neuro-extras/neuro-extras/neuro_extras/main.py", line 232, in _parse_neuro_image
    return client.parse.remote_image(image)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/api/utils.py", line 86, in __aexit__
    await self._ret.close()  # type: ignore
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/api/client.py", line 60, in close
    self._core._save_cookies(db)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/api/core.py", line 87, in _save_cookies
    _save_cookies(db, to_save)
  File "/opt/hostedtoolcache/Python/3.7.9/x64/lib/python3.7/site-packages/neuromation/api/core.py", line 227, in _save_cookies
    (cookie.key, cookie["domain"], cookie["path"], cookie.value, now),
sqlite3.OperationalError: database is locked

[asvetlov]

I think we can just suppress such errors.
There is nothing critical if the storage cookie is not saved on conflict.

[asvetlov]

Fixed by #1816