.

bigfile/file_zodb.py

@@ -662,6 +662,9 @@ class ZBigFile(LivePersistent):
 # NOTE Bear in mind that after close, connection can be reopened in different
 #      thread - that's why we have to adjust registration to per-thread
 #      transaction_manager.
+#
+# See also _file_zodb.pyx -> ZSync which maintains and keeps zodb.Connection
+# and wcfs.Connection in sync.
 @implementer(IDataManager)
 @implementer(ISynchronizer)
 class _ZBigFileH(object):