[Foundation-l] UvA what they need in log data from the Wikimedia Foundation

Gregory Maxwell gmaxwell at gmail.com
Sat Sep 15 21:07:31 UTC 2007


On 9/15/07, GerardM <gerard.meijssen at gmail.com> wrote:
> Hoi,
> The university of Amsterdam (UvA)  is getting log information that is
> thoroughly anonymised to the point where it becomes not as useful as it
> should be. The UvA is working on what they call a "peer to peer Wikipedia".
> Their interest in the data is not in the specific IP number of a requester
> for information, their interest is in where a request is coming from. The
> point is that is best, fastest and cheapest when information is available
> from a peer that is close by.

Would a simple break down of bytes and requests per autonomous system
number over a fairly wide time window (say, days), fit their needs?

Example data:

Collection Span               ASN   REQs  Bytes sent  hit-rate
20070801000000-20070801235959 14907 1000  10289000    .99987
20070802000000-20070801235959 14907 2000  20578013    .99916

Or perhaps by hour and AS over some span:

Collection Span               HrGMT ASN   REQs  Bytes sent  hit-rate
20070801000000-20070814235959 00    14907   40  411560      .9688
20070801000000-20070814235959 01    14907   20  205780      .9832

I don't see any reason why we couldn't release aggregates like these.
We should be generating them for our own planning purposes in any
case.

If they wanted details about object locality and things like that, we
could anonymize requests objects by unique IDs but doing that would
require a lot more care.



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