[infinispan-dev] Native CacheStore implementation?

Galder Zamarreño galder at redhat.com
Mon Oct 18 12:29:16 EDT 2010


On Oct 18, 2010, at 11:12 AM, 이희승 (Trustin Lee) wrote:

> 
> 
> Galder Zamarreño wrote:
>> On Oct 14, 2010, at 4:10 PM, Mircea Markus wrote:
>> 
>>> On 14 Oct 2010, at 12:39, 이희승 (Trustin Lee) wrote:
>>> 
>>>> 
>>>> Galder Zamarreño wrote:
>>>> 
>>>>> I do have some doubts on whether spending time implementing another cache store impl would be really that useful.
>>>>> 
>>>>> When I was in Berlin, rather than implementing another X cache store due to performance, I heard users asking more about whether they could have their existing databases be read by Infinispan cache stores, to avoid having multiple databases, one for a shared JDBC cache store and one for their JPA or similar ORM databases. Granted that this could be done with a Hibernate based cache store but then again you could be wondering whether they should not just use Hibernate directly with a 2LC.
>>>> I think that depends on how solid and fast FileCacheStore is.  If it's
>>>> good, more people will use it.  For now, not many people seem to use it
>>>> and that might be why we don't hear much about it.
>>> We explicitly  discourage people to use file cache store:  http://community.jboss.org/wiki/CacheLoaders#Shipped_Implementations
>> 
>> I don't think that's totally right actually. JBoss AS has been using the FileCacheStore in JBoss Cache for EJB3 SFSB passivation and HTTP session passivation and afaik, I haven't heard any complaints from them. 
>> 
>> So, there must be something right about it and we're not talking about sporadic use here. Remember that this is actually part of the supported EAP 5.x as well.
>> 
>> Granted that using FCS as shared cache store is crazy, but there's a valid use for local use.
> 
> Perhaps stupid question: what does FCS stand for? :)

LOL, read the first word of the next paragraph ;)

> 
> FileCacheStore might perform fairly well on a very good filesystem
> implementation such as those available in Linux, but it can be improved
> to perform even better, especially in less optimal filesystems like NTFS.
> 
> It's obviously not a high priority task, but I think we need to spend
> some time on it in background for later harvest.

p.s. In case you didn't figure it out, FCS = FileCacheStore ;)

> 
> Cheers,
> Trustin
> 
> -- 
> Trustin Lee - http://gleamynode.net/
> 
> 
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--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache




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