Disable container db updates in swift-on-file

server.py

$ git diff
diff --git a/swiftonfile/swift/obj/server.py b/swiftonfile/swift/obj/server.py
index cec3809..8e2a252 100644
--- a/swiftonfile/swift/obj/server.py
+++ b/swiftonfile/swift/obj/server.py
@@ -59,9 +59,20 @@ class ObjectController(server.ObjectController):
         return self._diskfile_mgr.get_diskfile(
             device, partition, account, container, obj, policy_idx, **kwargs)

+    def container_update(self, *args, **kwargs):
+        """
+        Update the container when objects are updated.
+
+        For Gluster, this is just a no-op, since a container is just the
+        directory holding all the objects (sub-directory hierarchy of files).
+        """
+        self.logger.warn("No-op container update")
+        return
+
     @public
     @timing_stats()
     def PUT(self, request):
+        self.logger.warn("SwiftOnFile PUT")
         try:
             server.check_object_creation = \
                 swiftonfile.swift.common.constraints.sof_check_object_creation