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Re: Bug#641769: [apt] fetches InRelease file, problematic on several mirrors (aka "Packages Hash Sum mismatch")

retitle 636292 dak/apt: deficiencies at handling out-of-sync metadata
summary 636292 87

If anyone disagrees with the above triage, please change the summary
and/or title.  Thank you.

On Sat, 17 Sep 2011, Filipus Klutiero wrote:
> #636292 is labelled as being about round-robin mirrors and problems
> APT has with those, even though that is probably not the actual
> cause of the reporter's problem.

You're expected to read the entire thing when refered to a bug report in
a thread you're replying to.  Anyway, triaged.  I didn't want to do it
because it is not my bug, it is not a package I work on, and I have no
idea wether the apt developers agree with my anaylsis of #636292 or not.
Please feel free to improve the title or chose a new summary.

> But indeed, there would be room for a general bug "unreliable
> package indices fetching protocol" :-S

That misses the point, IMO.  To me, it looks like what's "broken" is
that the repository format _and_ the front-ends have deficiencies at
handling metadata which is unsyncronized either in-mirror or across
mirrors.  And these deficiencies are a lot more important nowadays than
they once were, as we have now many dinstall runs per day, lots of users
tracking testing and unstable, a larger set of metadata files, a larger
and more diverse set of mirrors... I.e: a lot more chances to hit
unsyncronized metadata windows.

  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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