Version 53 (modified by iwakeh, 13 months ago) (diff)

added collector 1.1.2

Metrics Team


Welcome to the Metrics Team page. The Metrics Team is a group of Tor people who care about measuring and analyzing things in the public Tor network. There are currently three other teams in Tor: the Network Team writes the software to keep the Tor network running, the Applications Team produces usable applications for end users, and the Community Team focuses on the non-technical aspects of growing a healthy Tor community. But if you're interested in measurements and analyses, the Metrics Team is what you're looking for. Welcome!


The Metrics Team currently consists of between half a dozen and a dozen developers, depending on how and when you count. We're not listing names here to keep the team open to everyone. You're on the team if you're participating in discussions and development, and you're not part of the team anymore if you decide you want to move on (which we hope won't happen).


Our synchronous medium of communication is IRC meetings that happen every Thursday at 15:00 UTC in #tor-dev on OFTC.

If you want to reach someone from the team between these meetings to ask a development-related question, just go to #tor-dev and mention the magic word "metrics", and somebody from the team might either be around or appear later and get back to you.

Our asynchronous medium of communication is the metrics-team@ mailing list. This list is public in the sense that anyone can subscribe and read archives. But it's moderated on first post, meaning that your first post will be reviewed to make sure it's not spam and on topic and all further posts will go directly to the list. Feel free to subscribe and just listen if you want, and feel free to post if you have a question that you think is on topic.


The MetricsTeam is no selling any products, don't worry.

Product is a codebase of software maintained by the Team. Not all products of the Metrics Team are mentioned in this section (for a more complete list see roadmap draft). Instead, we list some long-term products here that are or will be released in way that a third party can decide to run a mirror of this type of service.

Here some links to these products' wiki development pages (in alphabetical order):

  • CollecTor the friendly data collecting service. A wiki subsection for CollecTor mirror operators mirror operating wiki.
  • ExoneraTor helps to find out whether that address was used as a Tor relay.
  • Metrics the primary place to learn interesting facts about the Tor network.
  • metrics-lib a Java library that fetches and parses Tor descriptors.
  • Onionoo is a web-based protocol to learn about currently running Tor relays and bridges. A wiki subsection for Onionoo mirror operators mirror operating wiki

Releases and Milestones


December 5, 2015 download metrics-lib 1.0.0
December 28, 2015 download metrics-lib 1.1.0
May 31, 2016 download metrics-lib 1.2.0
July 7, 2016 download metrics-lib 1.3.0
August 1, 2016 download metrics-lib 1.3.1
August 11, 2016 milestone CollecTor 1.0.0 download CollecTor 1.0.0
August 22, 2016 bugfix for #19913 download CollecTor 1.0.1
August 31, 2016 milestone metrics-lib 1.4.0 download metrics-lib 1.4.0
October 7, 2016 milestone CollecTor 1.0.2 download CollecTor 1.0.2
October 19, 2016 milestone metrics-lib 1.5.0 download metrics-lib 1.5.0
October 28, 2016 milestone CollecTor 1.1.0 download CollecTor 1.1.0
November 23, 2016 milestone Onionoo 3.1-1.0.0 download Onionoo 3.1-1.0.0
November 24, 2016 milestone CollecTor 1.1.1 download CollecTor 1.1.1
January 17, 2017 milestone CollecTor 1.1.2 download CollecTor 1.1.2

Planned Milestones

CollecTor 1.2.0 CollecTor 2.0.0
metrics-lib 1.6.0 metrics-lib 2.0.0
ExoneraTor 1.0.0 ExoneraTor 2.0.0
MetricsWeb 1.0.0 MetricsWeb 2.0.0
Onionoo 3.1-1.1.0 Onionoo 3.1-2.0.0


An FAQ by and about the Metrics Team. If something you want to know is not answered yet, check back in a few days. Or address your question directly to us via the communication channels listed in the previous section.

The 32C3 State of the Onion talk covered work of the Metrics Team by giving example of how bad relays are detected, investigated, and excluded from the Tor network. The entire talk is worth watching, but if you're short on time, be sure to watch minutes 20 to 28.

A concise description of all Metrics products is under way.

Censorship Watch

MetricsTimeline lists incidents that might help in interpreting metrics graphs.

Here's a table with tickets related to censorship incidents:

Ticket Summary Status Priority Severity Reporter Modified
No tickets found

Roadmap from October 2016 to June 2017

The metrics team put together the following roadmap for the time from October 2016 to June 2017. This list was created for the Seattle meeting in September 2016 and will be updated on a regular basis and revisited at the next meeting around March 2017.

  • 2016-10: Provide user-friendly documentation that empowers users to independently operate CollecTor instances. (Sponsor X 1.2. CollecTor)
  • 2016-10: Enable CollecTor to synchronize Tor network data from other CollecTor instances. (Sponsor X 1.3. CollecTor)
  • 2016-10: Set up a second CollecTor instance and enable synchronization with the first CollecTor instance. (Sponsor X 1.4. CollecTor)
  • 2016-11: Define a release process for Onionoo and put out at least one release. (Sponsor X 3.1. Onionoo)
  • 2016-11: Provide user-friendly documentation that empowers users to independently operate Onionoo instances. (Sponsor X 3.2. Onionoo)
  • 2016-12: Conduct a usability analysis of the current Tor Metrics website to identify the most pressing usability issues. (Sponsor X 6.1. Metrics)
  • 2016-12: Compare the Tor Metrics website code to RStudio's Shiny Server and other web frameworks. (no specific sponsor)
  • 2017-01: Perform an analysis on reducing the amount of sensitive, potentially personally identifying data stored in memory of Tor relays and bridges or reported to the directory authorities. (Sponsor X 4.1. Tor daemon)
  • 2017-01: Add a visualization of Tor Browser downloads to Metrics. (Sponsor X 6.3. Metrics, part 1)
  • 2017-01: Finalize visualizations of Tor Browser downloads on Metrics based on user feedback. (Sponsor X 6.3. Metrics, part 2)
  • 2017-02: Replace all existing Torperf instances gathering current Tor network performance measurements with OnionPerf instances. (Sponsor X 5.1. OnionPerf)
  • 2017-02: Improve usability of the most pressing issues identified in the earlier usability analysis as long as they are within scope to make it easier for users to find, compare, and interpret Tor usage and performance metrics. (Sponsor X 6.2. Metrics)
  • 2017-03: Write an outline of further improvements or prototypes for all metrics-related Java products. (no specific sponsor)
  • 2017-04: Develop and deploy at least one more user model in addition to the current model. (Sponsor X 5.2. OnionPerf)
  • 2017-04: Reduce the amount of sensitive, potentially personally identifying data stored in memory of Tor relays and bridges by implementing at least one suggestion from the earlier analysis document. (Sponsor X 4.2. Tor daemon)
  • 2017-04: Obfuscate data that gets reported by Tor relays and bridges to the directory authorities by implementing at least one suggestion from the earlier analysis document. (Sponsor X 4.3. Tor daemon)
  • 2017-05: Improve all usability issues of Atlas that are classified as High priority or above in the issue tracker as long as they are within scope and reported at least six months before the end of the award. (Sponsor X 3.3. Atlas)
  • 2017-06: Write user-friendly tutorials for metrics-lib/DescripTor that empower users to independently analyze large amounts of network data. (Sponsor X 2.3. metrics-lib/DescripTor)
  • 2017-06: Make a wider audience aware of the Tor descriptor parsing library metrics-lib/DescripTor by writing a blog post about it that explains how to use it. (Sponsor X 2.1. metrics-lib/DescripTor)

Open Tickets

The following table lists all open tickets, from recently modified to not touched in years, of products that are maintained by Metrics Team people or otherwise related. Not all of these products are actively maintained, so be sure to reach out to the team before starting to hack on any of these and also take a look at the Volunteer's Guide. Also note that not all metrics-related tools use Tor's Trac as their bug tracker, so you might also want to ask for bug trackers of other metrics tools.

Results (1 - 20 of 235)

1 2 3 4 5 6 7 8 9 10 11
Ticket Summary Component Status Owner Priority Severity Created Modified Reporter
#24713 Make pgTAP test work again Metrics/Statistics needs_review karsten Medium Normal 2 months ago 7 hours ago iwakeh
#25307 Use `persist` package for writing bridge descriptors in sanitization module Metrics/CollecTor needs_information metrics-team Medium Normal 10 hours ago 7 hours ago iwakeh
#25161 Fix another memory problem with the webstats bulk import Metrics/CollecTor assigned iwakeh Medium Normal 2 weeks ago 7 hours ago karsten
#25309 Use java8 datetime classes in bridgedesc module Metrics/CollecTor new metrics-team Medium Normal 8 hours ago 8 hours ago iwakeh
#24217 Specify data format and aggregation process of new IPv6 relay statistics Metrics/Statistics needs_review karsten High Normal 3 months ago 36 hours ago karsten
#25287 update URL for TorDNSEL Metrics/Website new metrics-team Medium Normal 4 days ago 36 hours ago cypherpunks
#25196 Cut off recent dates from hidserv.csv Metrics/Statistics needs_review karsten High Normal 11 days ago 36 hours ago karsten
#24229 Provide BGP Data Collection on Tor Metrics Metrics/Website needs_information iwakeh Medium Normal 3 months ago 38 hours ago iwakeh
#25022 Convert all scripts used for building to Ant tasks Metrics/Website needs_information iwakeh, metrics-team Medium Normal 4 weeks ago 38 hours ago iwakeh
#25283 Decide when we can turn off Metrics/Relay Search new metrics-team Medium Normal 4 days ago 3 days ago irl
#25288 Atlas is now called Relay Search and it has a new URL Metrics/Consensus Health needs_review irl Medium Normal 4 days ago 4 days ago irl
#24101 Provide percentages not just absolute numbers for country and AS information Metrics/Bot needs_information metrics-team Medium Normal 4 months ago 4 days ago arma
#25274 Consolidate Onionoo's API Metrics/Onionoo new metrics-team Low Normal 5 days ago 4 days ago karsten
#12522 Add sitemap.xml to make Relay Search pages indexed by Google et al. Metrics/Website assigned metrics-team Medium Normal 4 years ago 5 days ago karsten
#25085 Make order of sorted results deterministic Metrics/Onionoo needs_revision iwakeh Medium Normal 3 weeks ago 5 days ago iwakeh
#20228 Append all votes with same valid-after time to a single file in `recent/` Metrics/CollecTor assigned metrics-team Medium Normal 17 months ago 5 days ago karsten
#17488 ExoneraTor hangs forever on old known-positive test Metrics/ExoneraTor assigned metrics-team Medium Normal 2 years ago 5 days ago starlight
#23934 Add tweet templates for platform diversity Metrics/Bot assigned metrics-team Low Minor 4 months ago 5 days ago irl
#24069 Maintain a copy of the previous details document Metrics/Bot assigned metrics-team Low Normal 4 months ago 5 days ago irl
#25184 consensus health says that signatures are sha1, but the microdesc consensus actually uses sha256 Metrics/Consensus Health new tom Medium Normal 12 days ago 5 days ago teor
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