[metrics-team] [Fwd: graph spikes] +screenshot

Karsten Loesing karsten at torproject.org
Sun Nov 8 19:12:52 UTC 2015


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On 08/11/15 18:48, tor-server-creator at use.startmail.com wrote:
> where does this spikes come from? Earlier today there was a drop in
> the IPv4 Brige users from ~25k to ~15k. This spike now seems to be 
> flattened. How is the appearing and disappearing of those spikes
> possible?

These spikes are caused by moving CollecTor to a new host which led to
Metrics processing lots and lots of data it already processed before.
 I had to kick it a few times to recover, and while it's almost
running smoothly again, it did produce a few strange artifacts.  I'll
try to re-import the November data once this is over, which should
also fix these spikes.  Sorry for the confusion, and thanks for
watching these things.

All the best,
Karsten

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