From: "Bela Ban" <bban(a)redhat.com>
To: infinispan-dev(a)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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