[tor-relays] criteria for why a relay is expected to be unmeasured

[nusenu]

Hi,

the tor network is currently doing quite well when it comes to the
amount of unmeasured relays.

I'd like to filter unmeasured relays for unexpectantly unmeasured relays
only.

Currently I have three criteria for why a relay is expected to be
unmeasured:
- relay is a directory authority
- relay joined the network within the last three days
- last_restarted is within the last three days (this is a strong
simplification of "we assume this relay did not run enough to be
measured within the last three days")


At 2015-09-12 07:00:00 there were 116 unmeasured relays if we filter for
unexpectantly unmeasured relays we are down to 12 unexpected unmeasured
relays:
+---------------------+---------------------+----------+
| first_seen          | last_restarted      | FP       |
+---------------------+---------------------+----------+
| 2014-04-08 19:00:00 | 2015-08-24 12:29:07 | 9BE65BAE |
| 2014-04-16 20:00:00 | 2015-09-04 19:57:50 | 74BA3700 |
| 2014-04-18 10:00:00 | 2015-08-27 17:14:42 | B34B40B3 |
| 2014-05-14 14:00:00 | 2015-09-06 16:09:50 | 853D1645 |
| 2014-05-29 13:00:00 | 2015-07-18 10:04:53 | D14A197E |
| 2014-06-20 07:00:00 | 2015-09-07 06:15:49 | E96D712D |
| 2014-09-26 11:00:00 | 2015-03-24 13:31:21 | B8D2E17F |
| 2014-12-20 14:00:00 | 2015-08-04 22:07:28 | 1A397290 |
| 2015-03-15 01:00:00 | 2015-09-07 10:53:21 | 9143307A |
| 2015-04-23 03:00:00 | 2015-07-07 09:11:21 | 00F2D93E |
| 2015-04-26 09:00:00 | 2015-07-19 20:41:26 | F2ED5032 |
| 2015-08-21 06:00:00 | 2015-08-24 20:36:03 | 38B63BB8 |
+---------------------+---------------------+----------+

If you have an opinion on why any of these relays are unmeasured for a
specific reason please let me know so I can add that criteria to my list.

thanks


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