[jgroups-users] Question regarding Merge3

[pooja k. <poo...@gm...>]

Hi Bela,

I need help to understand the mechanics of creating a new view when Merge
is kicked in.


We are using Merge3 protocol with TCP. The system has 60 nodes.

Node28 was co-ord. All members had same view with id=129. There was an
event were 20 nodes were restarted.

While this event:
Node28 detected Merge and initiated merge with Node5. Both had same
co-ordiantors. But merge was invoked as cached views size was 2.

After the merge, node5 became co-ordinator with viewId =130. In this new
view, 3 members were removed (they were up and running)


I am trying to understand the following question:

When two nodes having same co-ordinator merge, what logic would be applied
to remove some non-coordinator members from the view ?

for instance:
if 1 has a view [1,2,4,5,6 | 33] and 5 has a view [1,2,4,5 | 32]
would be the resulting view?

will 6 be removed from the resulting view?


*Best,Pooja*