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Re: [tor-bugs] #2479 [Tor Relay]: be more lenient about changed descriptors

#2479: be more lenient about changed descriptors
-----------------------+----------------------------------------------------
 Reporter:  arma       |          Owner:                    
     Type:  defect     |         Status:  new               
 Priority:  normal     |      Milestone:  Tor: 0.2.2.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:                    
   Points:             |   Actualpoints:                    
-----------------------+----------------------------------------------------

Comment(by arma):

 I've been running moria1 for weeks with the new params, and everything
 seems peachy.

 The main difference is that http://metrics.torproject.org/consensus-
 health.html lists
 {{{
 tor26           3320 total      2546 Running
 ides            3319 total      2574 Running
 maatuska        3311 total      2532 Running
 dannenberg      3318 total      2534 Running
 urras           3320 total      2522 Running
 moria1          3492 total      2562 Running
 dizum           3321 total      2535 Running
 gabelmoo        3311 total      2524 Running
 consensus       2538 total      2538 Running
 }}}
 That is, moria1 is voting about 3500 relays when most people are voting
 about 3300. moria1 produces a few more Running votes than the others, but
 not many more.

 I haven't done the analysis to see if it's voting Running for nodes that
 are in the "last couple of hours before they're going to fall out of
 moria1's vote too" category. We could put this on the bottom end of
 Karsten's todo list to check, or we could just decide this change is
 potentially helpful and not harmful and run with it.

 Specifically, I'm running with these two params changed:

 {{{
  /** How old can a router get before we (as a server) will no longer
   * consider it live? In seconds. */
 -#define ROUTER_MAX_AGE_TO_PUBLISH (60*60*20)
 +#define ROUTER_MAX_AGE_TO_PUBLISH (60*60*24)
 }}}

 {{{
  /** Any changes in a router descriptor's publication time larger than
 this are
   * automatically non-cosmetic. */
 -#define ROUTER_MAX_COSMETIC_TIME_DIFFERENCE (12*60*60)
 +#define ROUTER_MAX_COSMETIC_TIME_DIFFERENCE (60*60)
 }}}

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2479#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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