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From "Adam W. Dace" <colonelforbi...@gmail.com>
Subject Re: [CANCEL] Release v4.1.1
Date Sat, 23 Nov 2013 00:55:51 GMT
Thanks a bunch for the explanation.  Guess I'm going to sit tight and wait
for v4.1.2.

Regards,


On Fri, Nov 22, 2013 at 2:02 AM, Igor Galić <i.galic@brainsware.org> wrote:

>
> I've been asked to explain what exactly the consequence is
> of TS-2384 and if it causes the cache to be reinitialized.
>
> That is not the case. The background is that the generated
> cache-lookup *key* is wrong in 4.1.x. This means that the
> existing objects on the disks will stay in place, but we
> won't be able to find them, because we are looking in the
> wrong place. As such we simply store the object again.
>
> That's /almost/ the same for people running with a 60 TiB
> cache, because everything requested is also stored again,
> and after a while the old objects that have been lying around
> for a while will be rotated out so that's bad. People with
> tiny caches or very high turn overs might even notice the
> downward spike in 304s.
>
> The good news is that we have identified the cause[1] real
> quick and are preparing a fix and regression tests to catch
> these things in the future.
>
> I have also updated the Jira ticket with this explanation.
>
> So long,
>
> i
>
> [1]:
> https://git-wip-us.apache.org/repos/asf?p=trafficserver.git;a=commitdiff;h=c40c601c9167c4937f972daf7825821e527a5f67
>
> ----- Original Message -----
> >
> > Hey folks.
> >
> > I'm sorry to come forward this late into the
> > release, but we broke it:
> >
> > This is a last minute recall of the 4.1.1 release
> > because we've found a regression that breaks the
> > cache, or rather key lookup: TS-2384
> >
> > I'll try to put together a post-mortem of this
> > release attempt, and its teething problems. We're
> > still convinced that we are on the right track:
> >
> > We have found all the major issues early, that is
> > before the releasing - but still not early enough.
> > So we'd like to ask you for your continued support.
> >
> > Thank you,
> >
> > -- Igor
> >
>
> --
> Igor Galić
>
> Tel: +43 (0) 664 886 22 883
> Mail: i.galic@brainsware.org
> URL: http://brainsware.org/
> GPG: 8716 7A9F 989B ABD5 100F  4008 F266 55D6 2998 1641
>
>


-- 
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