[tor-dev] Temporary decrease in FTE users in late August?

Kevin P Dyer kpdyer at gmail.com
Wed Sep 17 10:06:46 UTC 2014

Hi David,

I don't believe it has anything to do with bridges being blocked.

Here's what I know: There was a few days downtime at the end of August for
the first-listed FTE bridge in the Tor Browser. However, not all FTE
bridges listed in the Tor Browser were down at that time. It should have
been the case that failover worked properly. So, my guess is that (1) some
of the FTE bridges listed in the Tor Browser are not properly reporting
stats or (2) failover isn't working properly.

It's on my TODO list to investigate this further.


On Tue, Sep 16, 2014 at 2:51 AM, David Fifield <david at bamsoftware.com>

> Kevin,
> Do you know the reason why FTE usage dropped from 200 to about 50 at the
> end of August and then recovered again?
> https://metrics.torproject.org/users.html?graph=userstats-bridge-transport&start=2014-07-01&end=2014-09-16&transport=fte#userstats-bridge-transport
> I had a guess that maybe it had to do with availability of new bridges.
> If a bunch of bridges got blocked and then new bridges were made
> available, that could explain it. The 4.0-alpha-2 release was on
> September 3, but as far as I know it didn't contain new FTE bridges.
> They could have been added to BridgeDB, I suppose.
> David Fifield
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