I'm looking for options for torrc or another ways to force my tor daemon to fetch full network status.

E.g. today, my /var/lib/tor/cached-descriptors.new contain only records about 1032 relays, however http://torstatus.blutmagie.de show me more than 5000 relays.

I'm already enable in the /etc/tor/torrc:

DownloadExtraInfo 1 
FetchUselessDescriptors 1 

Am I must increase ulimit for Tor from 4096 to 10000 file descriptors:

$ ulimit -H -n 

And this option of torrc:

ConnLimit 10000 

I've found PathsNeededToBuildCircuits option in https://www.torproject.org/docs/tor-manual.html.en

PathsNeededToBuildCircuits NUM

Tor clients don’t build circuits for user traffic until they know about enough of the network so that they could potentially construct enough of the possible paths through the network. If this option is set to a fraction between 0.25 and 0.95, Tor won’t build circuits until it has enough descriptors or microdescriptors to construct that fraction of possible paths. Note that setting this option too low can make your Tor client less anonymous, and setting it too high can prevent your Tor client from bootstrapping. If this option is negative, Tor will use a default value chosen by the directory authorities. (Default: -1.)

I'm trying to add to my torrc:

PathsNeededToBuildCircuits 0.9

However, my Tor v0.2.3.25 (git-3fed5eb096d2d187) running on Linux, wantn't to launch, with next warn:

[warn] Failed to parse/validate config: Unknown option 'PathsNeededToBuildCircuits'. Failing.

Related my old quetsion: https://tor.stackexchange.com/questions/1632/http-torstatus-blutmagie-de-csv-list-of-current-result-set

1 Answer 1


The network page of the Tor metrics portal lists approximately 5300 relays. This number should also be known to your Tor client as every client needs a full network view. So you don't need to change your configuration.

The information about all relays is in cached-microdesc-consensus. The entries look like:

r einfo AOsaxadU+MSjQjiVx4CM7JzZ3TQ 2014-03-03 23:35:37 9001 0
m zQPi5J/Qoj/ZxtirMDHnulkVT/f7C9kYvzJ4tSQQZ24
s Exit Fast Guard Named Running Stable Valid

When I count all entries the file on my machine lists 5269 relays.

  • 5344 on my side, however option PathsNeededToBuildCircuits tell about that client or relay may not have a full network information. I'm looking for the way to force fetching the full information about network.
    – user2496
    Commented Mar 5, 2014 at 11:04

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