[infinispan-dev] Exposing LockManager?

[Mircea Markus]

I don't think this is needed anymore, see my comment: http://bit.ly/ljBUQc
 
On 31 May 2011, at 16:26, Galder Zamarreño wrote:

> 
> On May 31, 2011, at 2:42 PM, Dan Berindei wrote:
> 
>> On Tue, May 31, 2011 at 12:34 PM, Sanne Grinovero
>> <sanne.grinovero at gmail.com> wrote:
>>> What's the purpose of exposing this? making it possible to explicitly unlock
>>> keys before the transaction ends, and use locks out of transaction?
>>> 
>> 
>> The idea is to allow users to sort their keys (with
>> LockManager.getLockId) so that even with striped locking the locks are
>> always acquired in the same order, preventing deadlocks.
> 
> Yeah, that's right.
> 
>> I didn't think about the other operations in the LockManager though. I
>> guess we could create a new interface with only getLockId() for now,
>> and wait to expose the other methods until users request them.
> 
> Good point Dan. I'm fine with that.
> 
> Let's wait for Manik to come back on this cos he was the one implementing it. He might have had different ideas...
> 
>> 
>> Dan
>> 
>> 
>>> On 31 May 2011 10:05, "Galder Zamarreño" <galder at redhat.com> wrote:
>>>> 
>>>> On May 30, 2011, at 9:52 AM, Dan Berindei wrote:
>>>> 
>>>>> I guess you could get a hold of the lock manager via JMX, but it's
>>>>> probably better to access it through AdvancedCache.
>>>> 
>>>> Just to be clear, we only use JMX purely for monitoring and management at
>>>> a fine-grained level. A lock manager or similar component should not be
>>>> exposed via JMX.
>>>> 
>>>>> 
>>>>> In fact Manik was already suggesting in
>>>>> http://community.jboss.org/message/594715#594715 that it should be
>>>>> exposed via AdvancedCache, maybe he forgot about it when he
>>>>> implemented it.
>>>> 
>>>> Yeah, that's precisely my feeling, that he implemented it all but forgot
>>>> to to add the method in AdvancedCache.
>>>> 
>>>> He'll be able to clarify when he gets back.
>>>> 
>>>>> 
>>>>> Dan
>>>>> 
>>>>> 
>>>>> On Fri, May 27, 2011 at 8:02 PM, Galder Zamarreño
>>>>> <galder.zamarreno at redhat.com> wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> Re: https://issues.jboss.org/browse/ISPN-993
>>>>>> 
>>>>>> This has been implemented but how does a client get hold of the
>>>>>> LockManager? You have to use magic cos it's not exposed via the
>>>>>> AdvancedCache nor Cache, is it?
>>>>>> 
>>>>>> This is also somehow related to
>>>>>> http://community.jboss.org/message/606972#606972
>>>>>> 
>>>>>> Cheers,
>>>>>> --
>>>>>> Galder Zamarreño
>>>>>> Sr. Software Engineer
>>>>>> Infinispan, JBoss Cache
>>>>>> 
>>>>>> 
>>>>>> _______________________________________________
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>>>>>> infinispan-dev at lists.jboss.org
>>>>>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
>>>>>> 
>>>>> 
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>>>> 
>>>> --
>>>> Galder Zamarreño
>>>> Sr. Software Engineer
>>>> Infinispan, JBoss Cache
>>>> 
>>>> 
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>>> 
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>> 
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> 
> --
> Galder Zamarreño
> Sr. Software Engineer
> Infinispan, JBoss Cache
> 
> 
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