I think it will be a big win for us if we can do this - it is one of
the biggest bottlenecks with BR in Sync mode.
On 9 May 2008, at 13:13, Vladimir Blagojevic wrote:
I believe this should be possible if you use OOB messages and custom
headers. Let's confirm with Bela.
Manik Surtani wrote:
> The concurrent stack has done a great job in parallelizing delivery
> of messages from different senders, but is there a way to
> parallelize this from the same sender as well? Now I know this
> doesn't make sense in terms of JGroups messages (order needs to be
> maintained) but when you consider moving up one level of
> abstraction in JBC, this causes a bottleneck. Consider, for example:
>
> 1. Using sync replication and BR.
> 2. 3 threads on cache1, working on disjoint data sets (no
> contention at all, writes can be in parallel).
> 3. When it comes to replication to the same buddy, the concurrent
> stack on the receiver will queue the 3 commits.
> 4. All parallelization achieved in 2. above is wasted since the
> transactions need to queue anyway.
>
> Is there something we can do with custom message headers, etc. to
> allow for parallel delivery of these messages? E.g., perhaps using
> a "communication id", which could be a representation of a global
> transaction? Bela, Vladimir, any thoughts?
>
> Cheers,
> --
> Manik Surtani
> Lead, JBoss Cache
> manik(a)jboss.org
>
>
>
>
>
>
> _______________________________________________
> jbosscache-dev mailing list
> jbosscache-dev(a)lists.jboss.org
>
https://lists.jboss.org/mailman/listinfo/jbosscache-dev
--
Manik Surtani
Lead, JBoss Cache
manik(a)jboss.org