#2412 BLOC Update.: Buddies not disappearing even when connection does

Zarro Boogs per Child bugtracker at laptop.org
Tue Nov 6 11:57:43 EST 2007


#2412: Buddies not disappearing even when connection does
-------------------------------+--------------------------------------------
  Reporter:  Zack              |       Owner:  morgs                          
      Type:  defect            |      Status:  closed                         
  Priority:  blocker           |   Milestone:  Update.1                       
 Component:  presence-service  |     Version:                                 
Resolution:  fixed             |    Keywords:  collaboration Update.1? review+
  Verified:  0                 |  
-------------------------------+--------------------------------------------

Comment(by jg):

 daf,

 This means you will detect failure even if the network event is transient.
 So you will end up, at an application layer, provoking failures and
 exceptions *much* *much* more often than if you do not.

 In a busy network environment, (say 1000 machines to the server), this is
 30 PPS.  I don't know what the bandwidth works out to, but it is not just
 one byte/packet; it is the entire size of the packet plus the size of the
 wireless preamble/postamble.

 We certainly don't need to know that someone goes away within 30 seconds.

 Keepalives are evil....

-- 
Ticket URL: <http://dev.laptop.org/ticket/2412#comment:39>
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