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

[Galder Zamarreño]

On 31 Jan 2014, at 08:32, Dennis Reed <dereed at redhat.com> wrote:

> It would be a loss of functionality.
> 
> As a common example, the AS web session replication cache is configured 
> for ASYNC by default, for performance reasons.
> But it can be changed to SYNC to guarantee that when the request 
> finishes that the session was replicated.
> 
> That wouldn't be possible if you could no longer switch between 
> ASYNC/SYNC with just a configuration change.

I disagree :). 

AS could abstract that configuration detail. IOW, if all Infinispan returned was Futures, AS or any other client application, has the choice in their hands: do they wait for the future to complete or not? If they do, they’re SYNC, if not ASYNC. AS can still expose this and no functionality is lost.

What happens is that SYNC/ASYNC decision stops being a configuration option (bad, bad, bad) and becomes an actual programming decision Infinispan clients must address (good, good, good).

Chers,

> 
> -Dennis
> 
> On 01/31/2014 01:08 AM, Galder Zamarreño wrote:
>> Hi all,
>> 
>> The following came to my mind yesterday: I think we should ditch ASYNC modes for DIST/REPL/INV and our async cache store functionality.
>> 
>> Instead, whoever wants to store something asyncronously should use asynchronous methods, i.e. call putAsync. So, this would mean that when you call put(), it's always sync. This would reduce the complexity and configuration of our code base, without affecting our functionality, and it would make things more logical IMO.
>> 
>> WDYT?
>> 
>> Cheers,
>> --
>> Galder Zamarreño
>> galder at redhat.com
>> twitter.com/galderz
>> 
>> Project Lead, Escalante
>> http://escalante.io
>> 
>> Engineer, Infinispan
>> http://infinispan.org
>> 
>> 
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> 
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--
Galder Zamarreño
galder at redhat.com
twitter.com/galderz

Project Lead, Escalante
http://escalante.io

Engineer, Infinispan
http://infinispan.org