diff --git a/swift/obj/diskfile.py b/swift/obj/diskfile.py
index ae910c9b45..a786c800bc 100644
--- a/swift/obj/diskfile.py
+++ b/swift/obj/diskfile.py
@@ -1837,7 +1837,10 @@ class BaseDiskFileWriter(object):
         """
         return self._upload_size, self._chunks_etag.hexdigest()
 
-    def _finalize_put(self, metadata, target_path, cleanup):
+    def _finalize_put(self, metadata, target_path, cleanup,
+                      logger_thread_locals):
+        if logger_thread_locals is not None:
+            self.logger.thread_locals = logger_thread_locals
         # Write the metadata before calling fsync() so that both data and
         # metadata are flushed to disk.
         write_metadata(self._fd, metadata)
@@ -1914,7 +1917,9 @@ class BaseDiskFileWriter(object):
         metadata['name'] = self._name
         target_path = join(self._datadir, filename)
 
-        tpool.execute(self._finalize_put, metadata, target_path, cleanup)
+        tpool.execute(
+            self._finalize_put, metadata, target_path, cleanup,
+            logger_thread_locals=getattr(self.logger, 'thread_locals', None))
 
     def put(self, metadata):
         """
diff --git a/test/unit/obj/test_server.py b/test/unit/obj/test_server.py
index 17772a84c5..70040ee6d8 100644
--- a/test/unit/obj/test_server.py
+++ b/test/unit/obj/test_server.py
@@ -2863,6 +2863,59 @@ class TestObjectController(unittest.TestCase):
         check_file(old_part)
         check_file(new_part)
 
+    def test_PUT_next_part_power_eexist(self):
+        hash_path_ = hash_path('a', 'c', 'o')
+        part_power = 10
+        old_part = utils.get_partition_for_hash(hash_path_, part_power)
+        new_part = utils.get_partition_for_hash(hash_path_, part_power + 1)
+        policy = POLICIES.default
+        timestamp = utils.Timestamp(int(time())).internal
+
+        # There's no substitute for the real thing ;-)
+        tpool.execute = self._orig_tpool_exc
+
+        # This is a little disingenuous, but it's easier than reproducing
+        # the actual race that could lead to this EEXIST
+        headers = {'X-Timestamp': timestamp,
+                   'Content-Length': '6',
+                   'Content-Type': 'application/octet-stream',
+                   'X-Backend-Storage-Policy-Index': int(policy),
+                   'X-Trans-Id': 'txn1'}
+        req = Request.blank(
+            '/sda1/%s/a/c/o' % new_part, method='PUT',
+            headers=headers, body=b'VERIFY')
+        resp = req.get_response(self.object_controller)
+        self.assertEqual(resp.status_int, 201)
+
+        # The write should succeed, but the relink will fail
+        headers = {'X-Timestamp': timestamp,
+                   'Content-Length': '6',
+                   'Content-Type': 'application/octet-stream',
+                   'X-Backend-Storage-Policy-Index': int(policy),
+                   'X-Backend-Next-Part-Power': part_power + 1,
+                   'X-Trans-Id': 'txn2'}
+        req = Request.blank(
+            '/sda1/%s/a/c/o' % old_part, method='PUT',
+            headers=headers, body=b'VERIFY')
+        resp = req.get_response(self.object_controller)
+        self.assertEqual(resp.status_int, 201)
+
+        def check_file(part):
+            data_file = os.path.join(
+                self.testdir, 'sda1',
+                storage_directory(diskfile.get_data_dir(int(policy)),
+                                  part, hash_path_), timestamp + '.data')
+            self.assertTrue(os.path.isfile(data_file))
+
+        check_file(old_part)
+        check_file(new_part)
+
+        error_lines = self.logger.get_lines_for_level('error')
+        self.assertIn('[Errno 17] File exists', error_lines[0])
+        self.assertEqual([], error_lines[1:])
+        log_extras = self.logger.log_dict['error'][0][1]['extra']
+        self.assertEqual('txn2', log_extras.get('txn_id'))
+
     def test_PUT_next_part_power_races_around_makedirs_eexist(self):
         # simulate two 'concurrent' racing to create the new object dir in the
         # new partition and check that relinking tolerates the dir already