[tor-bugs] #7713 [Stem]: Stem should invalidate GETCONF cache

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#7713: Stem should invalidate GETCONF cache
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 Reporter:  atagar           |          Owner:  atagar        
     Type:  defect           |         Status:  needs_revision
 Priority:  minor            |      Milestone:                
Component:  Stem             |        Version:                
 Keywords:  controller easy  |         Parent:                
   Points:                   |   Actualpoints:                
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Comment(by atagar):

 > I've also noticed that CONF_CHANGED events with the following config are
 being sent to the listener.
 >
 > {'NodeFamily': 'mno,tuv,wxyz'}
 > {'NodeFamily': None}

 That seems really odd. Do you know where that second one is coming from?
 Please try connecting to a tor instance with telnet and seeing what raw
 CONF_CHANGED events that tor provides in response to that SETCONF. We
 might be uncovering a tor bug here. ;)

 > One way to make the test work would be to set an option for not updating
 the cache in the test and then check it in the listener.

 If the cache ever disagrees with what 'GETCONF' provides then that is a
 stem bug. Disabling the cache for the test would simply mask the issue.

 > I also modified the test to check if the cache is updated when another
 controller changes the config.
 https://github.com/lucyd/stem/commit/78da5aece13701d2b6b3d509d2aaeb8cdb70a040

 Thanks! Please add this as its own test (there's no need to bundle it with
 another).

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/7713#comment:7>
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