https://bugzilla.wikimedia.org/show_bug.cgi?id=66833

--- Comment #1 from christ...@quelltextlich.at ---
Although the zero vcl comes with code to strip a trailing character of
a zero tag [1], we're nonetheless seeing tags as

  zero=404-01b

in the zero tsvs, and mobile-sampled-100 tsvs [2] [3], where we'd expect

  zero=404-01

instead. While those requests are very few and harmless, it seems this
code to strip the trailing character is not working as expected.



[1]
https://git.wikimedia.org/blob/operations%2Fpuppet.git/a23daab91b67cb7a41b71aa4f77828359dc53170/templates%2Fvarnish%2Fzero.inc.vcl.erb#L312

[2] The volume of requests is extremely low (like 20-100 requests/day),
first occurrence is on 2014-05-22T19:20:30 in the zero tsvs.

The requests go to

  http://{en,pl}.{m,zero}.wikipedia.org/wiki/Main_Page

and are coming from a 10.68.0.0/16 IP, so they are probably on purpose.

[3] Up to 2014-06-19, such requests are not present in the sampled-1000
stream. But that may be caused by the sampling factor and the low volume of
requests. So I expect to see one or the other such request in the
sampled-1000 logs at some time.

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