[infinispan-dev] Hybrid locking scheme in ISPN 5.2.0

[Galder Zamarreño]

On May 14, 2012, at 5:53 PM, Diego Didona wrote:

> Thanks Galder,
>   I am reading again the documentation you linked and I am also running 
> some simple tests but I see this behaviour:
> -  with OPTIMISTIC mode the lock is acquired *only* at prepare time 
> (thus *not* like in ISPN 5.0);
> -  with PESSIMISTIC mode the lock is acquired at encounter time on the 
> primary node (again, thus *not* like in ISPN 5.0).
> 
> The behaviour I'm looking for is        only-local encounter-time 
> locking + cluster-wide prepare-time locking.

I can see what you mean by differences now, but why do you need this behaivour? 

What is your use case? IOW, what is the problem that you're having that requires you to get local locks first?

> 
> Am I missing something?
> Thanks again. Regards,
>    Diego
>> That's already possible, seehttps://docs.jboss.org/author/x/FAY5
>> 
>> Btw, the community wikis, like the one pointed below, are now used as design documents. For the user guide, head tohttps://docs.jboss.org/author/display/ISPN.
>> 
>> Cheers,
>> 
>> On May 4, 2012, at 5:08 PM, Diego Didona wrote:
>> 
>>> Hello,
>>>    looking at the code of ISPN 5.2 (and 5.1) I have seen that the
>>> LockingIntercetor has been replaced with new ones. I would like to know
>>> if there is the possibility to have ISPN 5.2 (or 5.1) working with the
>>> *same* hybrid locking scheme described in [1], which was the default
>>> till ISPN 5.0 and entailed the encounter-time write-locks acquisition
>>> during the "local" execution of a transaction and then their remote
>>> acquisition on other nodes at prepare time.
>>> Of course I would like to know if this is feasible just by tweaking some
>>> configuration parameters, without having to modify the source code.
>>> Thanks,
>>>    Diego
>>> ------------------------
>>> [1]https://community.jboss.org/wiki/OptimisticLockingInInfinispan
>>> _______________________________________________
>>> infinispan-dev mailing list
>>> infinispan-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
>> --
>> Galder Zamarreño
>> Sr. Software Engineer
>> Infinispan, JBoss Cache
>> 
>> 
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> 
> 
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--
Galder Zamarreño
Sr. Software Engineer
Infinispan, JBoss Cache