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Old 02-04-2010, 03:24 PM
Matt Domsch
 
Default Fw: Improving metrics gathering

Please note this thread on advisory-board and voice your concerns
there.

Thanks,
Matt
-Matt

----- Forwarded message from Matt Domsch <matt@domsch.com> -----

Date: Thu, 4 Feb 2010 10:16:09 -0600
From: Matt Domsch <matt@domsch.com>
To: advisory-board@lists.fedoraproject.org
Subject: Improving metrics gathering

I've spent quite a bit of time over the last week fixing up the
scripts that generate Fedora's worldwide user maps [1] including the
worldwide map for all Fedora versions currently in use [2] as
determined by yum requests for mirrorlists.

One thing that's painfully obvious is that the "Unique IP addresses"
method of counting the number of installations [3] is woefully
under-counting the actual number of installs. Looking at a single
day's worth of checkins (over 3 million), we see ~40k unique IP
addresses checking in twice a day, another 40k checking in between
4x/day and up to say 20x/day, and then a long tail, fairly evenly
distributed, where a small number of single IPs are checking in up to
2000x/day. It takes quite a bit of effort to cause yum to make that
many mirrorlist requests using a single machine and a single IP
address - but it's highly likely there are 1000-2000 machines behind a
NAT making those requests.

[snip]

To this end, I would like to see yum enhanced to provide information
which we can use to more accurately count the number of installed
Fedora systems. This has been discussed before, and documented on the
wiki [5], but for various reasons never been acted upon. While I'll
leave the implementation details to the appropriate teams, I think
including some form of UUID in yum mirrorlist queries would be both
appropriate, and safe.


[1] http://fedoraproject.org/maps/
[2] http://fedoraproject.org/maps/all.png
[3] http://fedoraproject.org/wiki/Statistics
[4] http://fedoraproject.org/wiki/Infrastructure/Metrics#Metrics_are_actually_important
[5] http://fedoraproject.org/wiki/Infrastructure/Metrics#Unique_Identifiers
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Old 02-04-2010, 05:34 PM
Tony Nelson
 
Default Fw: Improving metrics gathering

On 10-02-04 11:24:47, Matt Domsch wrote:
...
> ... but it's highly likely there are 1000-2000 machines behind
> a NAT making those requests.
>
> [snip]
>
> To this end, I would like to see yum enhanced to provide information
> which we can use to more accurately count the number of installed
> Fedora systems. This has been discussed before, and documented on
> the wiki [5], but for various reasons never been acted upon. While
> I'll leave the implementation details to the appropriate teams, I
> think including some form of UUID in yum mirrorlist queries would be
> both appropriate, and safe.

How about just the local IP address, which would usually be unique
behind a NAT, but not globally or eternally identifiable? Without a
NAT, it would be the same IP you already get, so no problem.

--
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