[tor-bugs] #1889 [Tor Relay]: Contradictory bandwidth reports in overlapping extra-info descriptors

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Sun Aug 29 15:05:14 UTC 2010


#1889: Contradictory bandwidth reports in overlapping extra-info descriptors
-----------------------+----------------------------------------------------
 Reporter:  mwenge     |       Owner:     
     Type:  defect     |      Status:  new
 Priority:  normal     |   Milestone:     
Component:  Tor Relay  |     Version:     
 Keywords:             |      Parent:     
-----------------------+----------------------------------------------------

Comment(by mwenge):

 i was just about to close it as a duplicate! 110 unique routers exhibited
 this behaviour on the 30th July. The examples I found look mostly like
 relay/client combinations (45 of them are 'Unnamed'), so I think they are
 covered by #1796. There's one or two that look like headless servers
 though and the problem they have looks slightly different:

 First Example
 -------------

 You can see with this guy the descriptor at 18:58 reports zero bandwidth
 almost into the previous day. There are 81 zeroes there and each one
 represents a 15 minute interval, so that's over 20 hours. It's reporting
 zero bandwidth for periods that in its previous descriptor reported quite
 heavy bandwidth.

 AnonymTorProxy
 write-history 2010-07-30 18:58:09 (900 s)
 51016704,54854656,56370176,61966336,87502848,140687360,52063232,39117824,53959680,92855296,45904896,24967168,7930880,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,184320,965632

 write-history 2010-07-30 01:43:09 (900 s)
 49228800,40128512,22645760,47933440,45445120,32333824,19849216,16937984,30072832,65630208,55131136,50461696,33767424,60020736,51193856,46249984,63535104,80968704,59577344,128847872,104945664,86573056,94878720,95174656,102881280,52918272,47956992,62808064,76340224,42440704,19562496,33812480,59432960,35354624,53516288,57620480,47820800,78172160,76681216,50040832,52646912,52122624,45438976,52240384,103915520,87828480,102213632,125029376,116759552,104132608,80033792,69415936,74482688,103608320,66944000,48066560,47063040,57641984,77840384,61473792,31711232,36148224,37580800,75486208,54866944,51417088,56162304,53396480,31748096,51016704,54854656,56370176,61966336,87502848,140687360,52063232,39117824,53959680,92855296,45904896,24967168,119614464,103352320,51945472,97429504,44146688,63855616,73466880,67643392,43849728,49810432,115605504,101196800,55580672,39632896,78535680

 Full descriptors:
 extra-info AnonymTorProxy 66F325326B049FC27EF97D544D8257AF3085E872
 published 2010-07-30 18:59:06
 write-history 2010-07-30 18:58:09 (900 s)
 51016704,54854656,56370176,61966336,87502848,140687360,52063232,39117824,53959680,92855296,45904896,24967168,7930880,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,184320,965632
 read-history 2010-07-30 18:58:09 (900 s)
 50190336,55837696,55800832,62022656,88251392,140708864,51249152,38636544,53901312,93604864,45599744,24365056,7538688,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,911360,1756160
 router-signature
 -----BEGIN SIGNATURE-----
 leLnLp6i26ZhjNqK+7NCpj6ZMDmhgMZXw8tB6LdJJ1KDuxuEdN8kKg72SnNoNMDl
 tkrljowxv6c++2LBzxtryNW6u4WR8jPutLBy6t0JQqJok8MO7gM/FaDXWmaAmJSq
 wI6EV+eAS/FCHyHm53ZFtqAhicFkHc+stamzcY2E7c4=
 -----END SIGNATURE-----

 extra-info AnonymTorProxy 66F325326B049FC27EF97D544D8257AF3085E872
 published 2010-07-30 01:45:49
 write-history 2010-07-30 01:43:09 (900 s)
 49228800,40128512,22645760,47933440,45445120,32333824,19849216,16937984,30072832,65630208,55131136,50461696,33767424,60020736,51193856,46249984,63535104,80968704,59577344,128847872,104945664,86573056,94878720,95174656,102881280,52918272,47956992,62808064,76340224,42440704,19562496,33812480,59432960,35354624,53516288,57620480,47820800,78172160,76681216,50040832,52646912,52122624,45438976,52240384,103915520,87828480,102213632,125029376,116759552,104132608,80033792,69415936,74482688,103608320,66944000,48066560,47063040,57641984,77840384,61473792,31711232,36148224,37580800,75486208,54866944,51417088,56162304,53396480,31748096,51016704,54854656,56370176,61966336,87502848,140687360,52063232,39117824,53959680,92855296,45904896,24967168,119614464,103352320,51945472,97429504,44146688,63855616,73466880,67643392,43849728,49810432,115605504,101196800,55580672,39632896,78535680
 read-history 2010-07-30 01:43:09 (900 s)
 48861184,39711744,21775360,47252480,44870656,31617024,19155968,16345088,29703168,66360320,54417408,49335296,32943104,59510784,50925568,45722624,63747072,81938432,58669056,129881088,105329664,87041024,94388224,95159296,102889472,52442112,48154624,62735360,76195840,41905152,18767872,33336320,58730496,34831360,52738048,57076736,47667200,77825024,76225536,49925120,51943424,51494912,44863488,51666944,103457792,88199168,102104064,124966912,115953664,102737920,79110144,68694016,73610240,102449152,65817600,47467520,46462976,57056256,77469696,60920832,31194112,35255296,36624384,74982400,54017024,51510272,55950336,53445632,31586304,50190336,55837696,55800832,62022656,88251392,140708864,51249152,38636544,53901312,93604864,45599744,24365056,120870912,103043072,51296256,98429952,43932672,63570944,73304064,67204096,42788864,49015808,115565568,100626432,54820864,38676480,78179328
 router-signature
 -----BEGIN SIGNATURE-----
 XhZWATbE7adTgqIyuqEchk31u2qe8ID42HLzWbCQhQmdwu/vses0LRd8mlkF9r6I
 VbWWV5Zk0ke84+YoRsPRk1YPnyflpGCjU7HsKGrW7D5JSH1LaedaNIC/XSCGUL3d
 MU46ZUIEtWu/rSN64XMPXUXIyuGi/d2JHT37WoTqVpM=
 -----END SIGNATURE-----

 Second example:
 --------------

 The bw reported by PPrivCom004 just seems plain contradictory.

 PPrivCom004:
 write-history 2010-07-30 21:25:17 (900 s)
 0,0,0,0,0,0,133120,163840,47104,0,0,0,0,0,780288,115712,14336,0,0,0,0,0,0,0,0,0,0,0,0,0,1244160,184320,80896,0,0,0,0,0,0,0,0,0,81920,120832,24576,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2101248

 write-history 2010-07-30 08:25:17 (900 s)
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,129024,121856,16384,0,0,0,0,0,0,0,0,0,0,0,0,0,190464,103424,22528,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,685056

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/1889#comment:2>
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