[tor-relays] Consensus weight dropped

Karsten Loesing karsten at torproject.org
Wed Jan 21 12:45:54 UTC 2015

Hash: SHA1

On 21/01/15 13:35, Network Operations Center wrote:
> Ah I see, thanks for taking the time investigating this. If there
> is something I need to do to help, please let me know.

You could start a second relay on the same physical machine on a
different port and see whether the bandwidth scanners pick that up.
Give it a day or two, and see if only tor26 and moria1 measure it.

You can find out the latter by fetching the latest votes from all
directory authorities and searching for your nickname and subsequent
"w" lines in them:


And of course you'll notice on Atlas whether the consensus weight
fraction of your new relay will be 0.00000% or not.

All the best,

> On 21.01.2015 01:22 PM, Karsten Loesing wrote: On 21/01/15 11:54,
> Network Operations Center wrote:
>>>> My dropping consensus overlaps exactly with the blue line on
>>>> that graph time-wise. The 1 Month Graph shows this pretty
>>>> well.
>>>> https://atlas.torproject.org/#details/3D7E274A87D9A89AF064C13D1EE4CA1F184F2600
It feels as if I am almost completely dependent on that blue node,
>>>> although since one needs multiple measures, it shouldn't be 
>>>> possible.
> Ah, sorry for being unclear.  The blue line is not bandwidth
> authority number 4, it's the number of relays for which there are
> measurements from 4 bandwidth authorities.
> But here's another graph, specifically for your relay schokomilch:
> https://people.torproject.org/~karsten/volatile/schokomilch-cw-2015-01-21.png
> 14C1 is tor26, 4901 is maatuska, and D586 is moria1.  It looks
> like maatuska stopped measuring your relay between December 29 and
> January 5, which is a general problem with maatuska's scanner, not
> specific to your relay, AFAIK.
> And unrelated to this, neither gabelmoo nor longclaw ever measured 
> your relay.  I'd say this is something to investigate and then
> fix.
> All the best, Karsten
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