[infinispan-dev] TotalOrder and jgroups

[Mircea Markus]

Thanks Bela.

----- Original Message -----
> From: "Bela Ban" <bban at redhat.com>
> To: infinispan-dev at lists.jboss.org
> Sent: Tuesday, March 6, 2012 1:47:47 PM
> Subject: Re: [infinispan-dev] TotalOrder and jgroups
> 
> No, I think this is a good idea. The algorithm should check if
> SEQUENCER
> is present in the stack, and insert a new instance at startup if not,
> otherwise no-op.
> 
> This is only for *replication*, correct ? For *distribution*, the
> CloudTM folks will send us a different total order protocol (TOM)
> soon... but the same mechanism can be applied.
> 
> On 3/6/12 12:58 PM, Mircea Markus wrote:
> > Hi,
> >
> > Total order requires JGroup's SEQEUNCER[1] protocol to be added to
> > the protocol stack. So users that want to switch between e.g.
> > total order and optimistic TX are required to also change the
> > jgroups config (and the other way around). This is not very user
> > friendly, so I'm thinking to try and insert the SEQUENCER if it is
> > missing from the stack and TotalOrder is enabled, together with a
> > log message. Anyone sees any problem with this? Bela?
> >
> > [1]
> > http://www.jgroups.org/javadoc/org/jgroups/protocols/SEQUENCER.html
> 
> --
> Bela Ban
> Lead JGroups (http://www.jgroups.org)
> JBoss / Red Hat
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