Huiping,
Not sure which version of shoal gms that you are asking your question about.
The selection of the master has never taken into account between
SPECTATOR and CORE membership.
The first GMS client started attains master status. And keeps it until
it stops or dies. Then
another member of the group would assume MASTER status, independent if
it is core or not.
In GlassFish 3.1.1 and earlier, a new MASTER was selected by taking the
lowest member by alphabetical
order of the gms instance names. Moving forward, the new MASTER will be
selected based on longest
running member.
Hope I have answered your question, but feel free to follow up if I have
not.
-Joe
On 10/4/11 7:47 AM, Huiping Zhang wrote:
> Hi,
>
> In my cluster, if I start only some of the nodes as "core", will the "master" node status only be assigned to one of the "core" members?
>
> Thanks, Huiping