[tor-bugs] #1992 [Tor Relay]: relays resolve hostname every time they compute dir fetch schedule

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#1992: relays resolve hostname every time they compute dir fetch schedule
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 Reporter:  arma       |       Owner:                    
     Type:  defect     |      Status:  new               
 Priority:  minor      |   Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay  |     Version:                    
 Keywords:             |      Parent:                    
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Comment(by arma):

 Right now we call check_descriptor_ipaddress_changed() every 15 minutes.

 We also re-guess our address every time we get a directory answer
 (directory_info_has_arrived() calls directory_fetches_from_authorities()
 and update_router_descriptor_downloads() -- so that's twice in that
 function), and basically several times for each directory fetch as well.

 In particular, update_router_descriptor_downloads() gets called every 60
 seconds if we're lucky, and every 10 seconds while !
 router_have_minimum_dir_info().

 So I'd say if we crank CHECK_IPADDRESS_INTERVAL down to 60, and stop
 calling resolve_my_address() except from that function, we'll be a lot
 less spammy.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1992#comment:1>
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