[infinispan-dev] Single lock owner - please review

[Paolo Romano]

Cool stuff Mircea! ;-)

We're actually planning for rebasing our total-order based schemes on 
this pull, so we look forward to seeing it finalized!

Have you already implemented any mechanism to avoid consistency issues 
related to inversions of the delivery order of commit messages at 
different replicas (I mentioned it in some past mail)?

Actually, after a second thought I realized that if you only care about 
eventual consistency you could use a simple scalar clock incremented 
independently at each primary owner to order the commit events across 
the non-primary nodes (using the Thomas Write Rule [1] to avoid any 
blocking).

Then, if you want to raise the bar of consistency you would need at 
least causal order among transactions... this is something that is 
actually in our short term roadmap, along with and a new, highly 
scalable (not relying on any global clock) serializable MVCC 
algorithm... more on this soon! ;-)

Cheers,

     Paolo

[1] http://en.wikipedia.org/wiki/Thomas_write_rule

On 11/2/11 9:21 PM, Mircea Markus wrote:
> Hi guys,
>
> The single lock owner stuff is ready for review. It's a massive change 
> so I'd expect the review process to take some days. Can you please 
> take  a look and comment?
>
> JIRA is: https://issues.jboss.org/browse/ISPN-1137
>
> Pull request: https://github.com/infinispan/infinispan/pull/574
>
> Thanks!
>
> Mircea
>
>
>
> _______________________________________________
> infinispan-dev mailing list
> infinispan-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/infinispan-dev

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/infinispan-dev/attachments/20111102/f6ee46d7/attachment.html