Comment 2 for bug 1254405

This appears to be some kind of race condition. It is kind of hard to debug this particular one because we don't appear to have all the logs from the proxy server. Not sure why, but we only see the object and container server data for this operation.

The sequence of events is:

1. Container create of: TestContainer-tempest-122946756
    a. Auto account-create of: AUTH_3673914f25b046aa815ff03fd0f035fd
2. POST Container TestContainer-tempest-122946756
3. HEAD Container TestContainer-tempest-122946756
4. Object PUT TestContainer-tempest-122946756/Object-tempest-846598070
    a. container PUT object
    b. PUT object response
5. GET Container, json format
6. DELETE object - 500 Error, .data file not found

Nov 23 09:38:47 devstack-precise-hpcloud-az2-726791 object-server: ERROR __call__ error with DELETE /sdb1/237/AUTH_3673914f25b046aa815ff03fd0f035fd/TestContainer-tempest-122946756/Object-tempest-846598070 :
Traceback (most recent call last):
  File "/opt/stack/new/swift/swift/obj/server.py", line 665, in __call__
    res = method(req)
  File "/opt/stack/new/swift/swift/common/utils.py", line 1919, in wrapped
    return func(*a, **kw)
  File "/opt/stack/new/swift/swift/common/utils.py", line 687, in _timing_stats
    resp = func(ctrl, *args, **kwargs)
  File "/opt/stack/new/swift/swift/obj/server.py", line 613, in DELETE
    disk_file.delete(req_timestamp)
  File "/opt/stack/new/swift/swift/obj/diskfile.py", line 1364, in delete
    deleter.put({'X-Timestamp': timestamp})
  File "/opt/stack/new/swift/swift/obj/diskfile.py", line 686, in put
    self._finalize_put, metadata, target_path)
  File "/opt/stack/new/swift/swift/common/utils.py", line 2216, in force_run_in_thread
    return self._run_in_eventlet_tpool(func, *args, **kwargs)
  File "/opt/stack/new/swift/swift/common/utils.py", line 2199, in _run_in_eventlet_tpool
    raise result
OSError: [Errno 2] No such file or directory: '/opt/stack/data/swift/1/sdb1/objects/237/7a0/768dbb513bd1ee5ace0d0f9650d097a0/1385199527.85480.data' (txn: txdb6be9b4235d41cfabb9d-00529077a7)