#5501 HIGH Never A: XOs vanishing/reappearing/flashing in the mesh view is related to avahi losing its cache of hosts

[Zarro Boogs per Child]

#5501: XOs vanishing/reappearing/flashing in the mesh view is related to avahi
losing its cache of hosts
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 Reporter:  yani             |       Owner:  sjoerd        
     Type:  defect           |      Status:  new           
 Priority:  high             |   Milestone:  Never Assigned
Component:  telepathy-salut  |     Version:                
 Keywords:                   |    Verified:  0             
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 The cache of hosts of avahi deamon is rechecked every 1-2 minutes. When a
 host in cache cannot be resolved, the entry is not deleted, but instead
 restated as "Failed".

 If a new host arrives, and 1(other than the arrived one) or more  hosts
 were previously reported "Failed",
 then Avahi loses this cache.

 The result is that all "Failed" XOs disappear from the mesh view
 instantly.

 The best and simplest way to recreate the effect in any environment(noisy
 or not) is to:
 1.Connect successfully 3 XOs in the same mesh.
 2.Move successfully XO1,XO2 to another channel., and verify the show as
 "failed" when running "avahi-browse" in XO3
 3.Reconnect at the same time XO1,XO2 to the initial channel.
 4.While the XOs are trying to connect(30sec) check they still show are
 "Failed" when running "avahi-browse" in XO3
 5.Observe the screen in XO3: the icons of XO1,XO2 will jump almost at the
 same time.

 To my best understanding,
 It is not related to a noisy envirnment
 Does not require a large number of laptops
 Can be recreated in 100% of the times you try the above.

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Ticket URL: <http://dev.laptop.org/ticket/5501>
One Laptop Per Child <http://dev.laptop.org>
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