Issue 78: IM sometimes send out double notifications for posts and comments
Status:  Accepted
Owner:
Project Member Reported by jonasnoc...@gmail.com, Apr 1, 2009
The following are examples of notifications that were shown twice in Adium:

* http://jonasl.jaiku.com/presence/4ebf00e0b2b240569db2c7c981454f88
* http://matpe.jaiku.com/presence/0d519b1ef9bc41e5a311ced473520663#c-
65f505eb5ac0469094f25af2194ddd94
* http://tomasw.jaiku.com/presence/55d3a805b9ed4244a2020f2146ba551b#c-
7f55131c163a476f8c6cc88a8a862415

For each pair, both entries were posted within a second of each other.
Apr 2, 2009
Project Member #1 andyster
this appears to be related to the new task queue stuff
Status: Accepted
Owner: andyster
Labels: Size-Small
Apr 9, 2009
Project Member #2 adewale
The 2 notifications that I see in Adium seem to be formatted differently. I suspect
that one is the html format and one is the plain text version.
Apr 27, 2009
Project Member #4 andyster
Some research has yielded that a property of app engine's datastore causes quick
updates to the same entity sometimes to take more time to propagate allowing a quick
refetch of it to sometimes get the old data, the approaches to fixing this are either:

1. change the architecture such that tasks always delete and write a new task with a
different key name
2. add an additional lock in memcache to track progress on tasks
Labels: -Size-Small Size-Medium
Apr 27, 2009
Project Member #5 adewale
This suggests that we load the same property from the datastore multiple times. We could also avoid reloading 
multiple times. If this were possible then it would be a simpler solution
Jun 28, 2009
Project Member #6 adewale
 Issue 124  has been merged into this issue.