On 25 Jul 2013, at 09:52, Sanne Grinovero <[email protected]> wrote:
> On 24 July 2013 18:42, Mircea Markus <[email protected]> wrote: >> >> On 24 Jul 2013, at 17:16, Sanne Grinovero <[email protected]> wrote: >> >>> Also: >>> - support to efficiently preload only the owned entries >> >> We'd still need to iterate over all the stored keys to decide which maps to >> the local node, but we won't have to load the entries. Is that what you have >> in mind? > > Ideally you wouldn't want to iterate on the keys: some storage engines > could run the CHM function as a selection criteria (among others, > those supporting Map/Reduce can do it; some of these run in Java > making this relatively easy - also for HotRod we'll likely have to > maintain CHM implementations in other languages anyway). > > I realize that's complex to implement but the important change is to > not disallow such optimisations by using a limiting SPI: if the > CacheStore SPI would allow that, then people would be able to try > implement such smarter stores.. otherwise it's impossible. > > Today we load all keys first, a good start would be to load them all > as a stream rather than as a single Set. We can pass in a CacheStoreFilter (as per Manik's original design), that should allow the cachestore to filter things its own way. Thanks for the feedback! Cheers, -- Mircea Markus Infinispan lead (www.infinispan.org) _______________________________________________ infinispan-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/infinispan-dev
