[infinispan-dev] L1 consistency for transactional caches.

[Dan Berindei]

On Tue, Jul 2, 2013 at 6:36 PM, Pedro Ruivo <pedro at infinispan.org> wrote:

>
>
> On 07/02/2013 04:21 PM, Sanne Grinovero wrote:
> > +1 for considering it a BUG
> >
> > Didn't we decide a year ago that GET operations should be sent to a
> > single node only (the primary) ?
>
> +1 :)
>
>
Manik had a patch for staggering remote GET calls, but it was slowing down
reads by 25%: http://markmail.org/message/vsx46qbfzzxkkl4w


> >
> > On 2 July 2013 15:59, Pedro Ruivo <pedro at infinispan.org> wrote:
> >> Hi all,
> >>
> >> simple question: What are the consistency guaranties that is supposed to
> >> be ensured?
> >>
> >> I have the following scenario (happened in a test case):
> >>
> >> NonOwner: remote get key
> >> BackupOwner: receives the remote get and replies (with the correct
> value)
> >> BackupOwner: put in L1 the value
> >> PrimaryOwner: [at the same time] is committing a transaction that will
> >> update the key.
> >> PrimaryOwer: receives the remote get after sending the commit. The
> >> invalidation for L1 is not sent to NonOwner.
> >>
> >> The test finishes and I perform a check for the key value in all the
> >> caches. The NonOwner returns the L1 cached value (==test fail).
> >>
> >> IMO, this is bug (or not) depending what guaranties we provide.
> >>
> >> wdyt?
> >>
> >> Pedro
> >> _______________________________________________
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> >
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