Re: [infinispan-dev] rethinking ISPN transactions
On Nov 12, 2013, at 2:51 PM, Paul Ferraro <paul.ferraro(a)redhat.com> wrote:
3. Optimistic tx without Write Skew Check (WSC)
> - well, without WSC the transactions are not optimistic by definition
> - they are something else: an batch update of multiple key/values. If the batch is
successful you know the update was atomic. If it failed you don't get any guarantee
> - suggestion: optimistic tx should *always* have WSC enabled (no option to configure
it)
> - build our batching functionality on top of what currently is optimistic tx without
WSC and document it as such
OK, but can you elaborate on the last bullet?
So, the batching API will no longer contain transactional guarantees?
The batching API ATM only guarantees that if the commit(end of batch) succeeds everything
is applied. If the commit doesn't succeed you get inconsistencies/no guarantees.
That's pretty much the kind of guarantees I'd like the new batching to offer.
Cheers,
--
Mircea Markus
Infinispan lead (www.infinispan.org)