[tor-bugs] #9321 [Tor]: Load balance right when we have higher guard rotation periods

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#9321: Load balance right when we have higher guard rotation periods
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     Reporter:  arma     |      Owner:
         Type:  project  |     Status:  new
     Priority:  normal   |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor      |    Version:
   Resolution:           |   Keywords:  needs-proposal, tor-auth, tor-
Actual Points:           |  client, 026-triaged-1
       Points:           |  Parent ID:  #11480
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Comment (by asn):

 Also, any ideas on the format of the file that the script should output?
 What would be the easiest format for little-t-tor to parse these days?

 I'm looking at `dirserv_read_measured_bandwidths()` but the file format of
 the bw auths looks a bit arbitrary. It's pretty easy to parse but it's not
 something that can be reused. Can I reuse a file parser of little-t-tor,
 or should I write yet another file format?

 The information that needs to be transmitted could be something like
 this (maybe I'm forgetting some info, or adding redundant info):

 {{{
 <date and time>
 <number of consesuses parsed> <number of months considered>

 <guard fpr 1> <number of times seen in a consensus>
 <guard fpr 2> <number of times seen in a consensus>
 <guard fpr 3> <number of times seen in a consensus>
 <guard fpr 4> <number of times seen in a consensus>
 <guard fpr 5> <number of times seen in a consensus>
 ...
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9321#comment:14>
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