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From g...@apache.org
Subject svn commit: r1205932 - /qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt
Date Thu, 24 Nov 2011 17:06:26 GMT
Author: gsim
Date: Thu Nov 24 17:06:26 2011
New Revision: 1205932

URL: http://svn.apache.org/viewvc?rev=1205932&view=rev
Log:
QPID-3603: added note about current lack of synchronisation of snapshot and events in node
propagation

Modified:
    qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt

Modified: qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt
URL: http://svn.apache.org/viewvc/qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt?rev=1205932&r1=1205931&r2=1205932&view=diff
==============================================================================
--- qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt (original)
+++ qpid/branches/qpid-3603/qpid/cpp/design_docs/replicating-browser-design.txt Thu Nov 24
17:06:26 2011
@@ -306,6 +306,17 @@ it).
 LC5 - Need richer control over which queues/exchanges are propagated, and
 which are not.
 
-Question: is it possible to miss an event on subscribing for
-configuration propagation? are the initial snapshot and subsequent
-events correctly synchronised?
+LC6 - The events and query responses are not fully synchronized.
+
+      In particular it *is* possible to not receive a delete event but
+      for the deleted object to still show up in the query response
+      (meaning the deletion is 'lost' to the update).
+
+      It is also possible for an create event to be received as well
+      as the created object being in the query response. Likewise it
+      is possible to receive a delete event and a query response in
+      which the object no longer appears. In these cases the event is
+      essentially redundant.
+
+      It is not possible to miss a create event and yet not to have
+      the object in question in the query response however.



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