#33061: archived bandwidth scanner files lack explicit source attibution -------------------------------+----------------------------------- Reporter: starlight | Owner: metrics-team Type: enhancement | Status: needs_information Priority: Medium | Milestone: Component: Metrics/CollecTor | Version: Severity: Normal | Resolution: Keywords: | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: -------------------------------+-----------------------------------
Comment (by starlight): Replying to [comment:4 karsten]: > Replying to [comment:3 starlight]: > > To clarify further: Each bandwidth scanner has a unique perspective of available bandwidth capacities in the network. Associating documents in time series tied to individual scanners is critical to making sense of the data. > > True. What you'll have to do is combine bandwidth files with votes to extract meaningful results. I agree combining votes and bandwidth documents is useful, but I find significant value in bandwidth scanner documents alone provided the source scanners are attributed. >. . .it's also not trivial or maybe not even possible for CollecTor to include this information in bandwidth files while archiving them. I'm curious why--have no difficulty with attribution here. The scanner- to-authority correlation may not be the big picture design, but is the practical reality to date. > > Note that combining descriptors is not unusual for an analysis. Right now I'm combining consensuses, votes, server descriptors, and extra-infos for another, unrelated analysis. Sometimes it's simply necessary to combine data from different data sources; in the bandwidth files case from bandwidth scanners and directory authorities using bandwidth scanner data. No disagreement some forms of analysis are fine or even better without the source. ===== I managed a perl script that successfully attributes scanner sources for the gaps filled from Collector. Willing to make the results available. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33061#comment:5> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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