[infinispan-dev] Ditching ASYNC modes for REPL/DIST/INV/CacheStores?

[Mircea Markus]

On Jan 31, 2014, at 10:59 AM, Sanne Grinovero <sanne at infinispan.org> wrote:

> Generally I like the systems designed with SYNC_DIST + async shared cachestore.
> 
> It's probably the best setup we can offer:
> - you need a shared cachestore for persistence consistency
> - using SYNC distribution to other replicas provides a fairly decent resilience
> - if your cachestore needs to be updated in sync, your write
> performance will be limited by the cachestore performance: this
> prevents you to use Infinispan to buffer, absorbing write spikes, and
> reducing write latency

+1. I would add to that that the async store also shields the user from e.g. database's availability or slowness: if the write to the database takes time then entries are queued up in memory and written when the backend can handle it. 

> 
> But I agree we should investigate on removing duplicate
> "asynchronizations" where they are not needed, there might be some
> opportunities to remove thread switching and blocking.

Cheers,
-- 
Mircea Markus
Infinispan lead (www.infinispan.org)