Re: [infinispan-dev] ISPN-232 - feedback needed

On 25 May 2010, at 16:26, Manik Surtani wrote: > > On 25 May 2010, at 14:15, Mircea Markus wrote: > >>>> >>>> But, I'd be concerned about an Infinispan thread that's needed >>>> for doing a lot of critical work during a view change getting tied up >>>> making a ton of notifications. >>> >>> ^^ Yeah that's my concern. If during a rehash we need to stop at every entry that is being moved and issue a notification, that could be costly and really slow down the rehashing process. >> Can't we register an *async* notification listener on ViewChanged ? > > You'd still have a *lot* of notifications being queued up for the notification executor since you will have 1 event *per entry* that is moved. this would still happen in the same JVM as this information is needed. Just that we offer this as a service, so that users(AS being one of them) won't have to write this code.

> Could be thousands, tens of thousands in cases. > All other notifications will be severely delayed (depending on your async notifier executor threadpool size) If you have an big enough thread pool (actually at least 2 threads) this should be no issue - and this should be made clear to the user.

> > > -- > Manik Surtani > manik(a)jboss.org > Lead, Infinispan > Lead, JBoss Cache > http://www.infinispan.org > http://www.jbosscache.org > > > > > > _______________________________________________ > infinispan-dev mailing list > infinispan-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/infinispan-dev _______________________________________________ infinispan-dev mailing list infinispan-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev