users@glassfish.java.net

Re: shoal / GMS sniffer?

From: Shreedhar Ganapathy <Shreedhar.Ganapathy_at_Sun.COM>
Date: Mon, 24 Nov 2008 22:05:58 -0800

> Ah, hadn't realised that; assumed session replication piggybacked on
> GMS traffic.
>
> Does that mean sessions do not go over multicast?
>
Sessions go over TCP when replication happens. Replication module does
need multicast to send out a query to the group as to who owns a
particular version of a given session. This typically happens during
failover.