Anyone on the list know if there's a way to make the debug log
facilities do the YYYYMMDD timestamp instead of the longer one?
If not, I suppose we could work to update the core MediaWiki code. 
1. For those with PHP skills or equivalent, I'm referring to
Scroll to the bottom of the function definition to see the datetimestamp
On Wed, Apr 16, 2014 at 12:47 PM, Andrew Gray <andrew.gray(a)dunelm.org.uk
One thought: you don't really need the date/time data at any detailed
resolution, do you? If what you're wanting it for is to track major
changes ("last month it all switched to this IP") and to purge old
data ("delete anything older than 10 March"), you could simply log day
rather than datetime.
enwiki / 127.0.0.1 / 123.45 / 2014-04-16:1245.45
enwiki / 127.0.0.1 / 123.45 / 2014-04-16
- the latter gives you the data you need while making it a lot harder
to do any kind of close user-identification.
On 16 Apr 2014 19:17, "Adam Baso" <abaso(a)wikimedia.org> wrote:
> Thanks for starting this thread.
> > Sorry if I've overlooked this, but who/what will have access to this
> > Only members of the mobile team? Local project CheckUsers? Wikimedia
> > Foundation-approved researchers? Wikimedia shell users? AbuseFilter
> > filters?
> It's a good question. The thought is to put it in the customary
> location (with, for example, filename "mccmnc.log") on fluorine.
> It just occurred to me that the wiki name (e.g., "enwiki"), but not
> full URL, gets logged additionally as part of the wfDebugLog call; to
> the implicit explicit, wfDebugLog adds a datetime stamp as well, and
> useful for purging old records. I'll forward this email to mobile-l
> wikitech-l to underscore this.
> > And this may be a silly question, but is there a reasonable means of
> > approximating how identifying these two data points alone are? That
> > Using a mobile country code and exit IP address, is it possible to
> > identify a particular editor or reader? Or perhaps rephrased, is
> > considered anonymized?
> Not a silly question. My approximation is these tuples (datetime, now
> it hit me - XYwiki, exit IP, and MCC-MNC) alone, although not
> anonymized, are low identifying (that is, indirect inferences on the
> in isolation are unlikely, but technically possible, through
> short tail outliers in a cluster analysis where such readers/editors
> in the short tail outliers sets), in contrast to regular web access
> (where direct inferences are easy).
> Thanks. I'll forward this along now.
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