Hi all,

Kindly comment on the above behaviour

Regards,
Ranjith

On Tue, Sep 21, 2010 at 9:52 PM, Ranjith <[email protected]> wrote:

> Hi all,
>
> I was testing the corosync cluster engine by using the testcpg exec
> provided along with the release. I am getting the below behaviour
> while testing some specific scenarios. Kindly comment on the expected
> behaviour.
>
> 1)   3 Node cluster
>
>                   1---------2---------3
>
>     a) suppose I bring the nodes 1&2 up, it will form a ring (1,2)
>     b) now bring up 3
>     c) 3 sends join which restarts the membership process
>     d) (1,2) again forms the ring , 3 forms self cluster
>     e) now 3 sends a join (due to join or other timeout)
>     f) again membership protocol is started as 2 responds to this by going
> to gather state ( i believe 2 should not accept this as 2 would have earlier
> decided that 3 is failed)
>
>     I am seeing a continuous loop of the above behaviour  ( operational ->
> membership -> operational -> ) due to which the cluster is not becoming
> stabilized
>
>
> 2)   3 Node Cluster
>
>                   1---------2-----------3
>
>      a) bring up all the three nodes at the same time (None of the nodes
> have seen each other before this)
>      b) Now each node forms a cluster by itself .. (Here i think it should
> from either a (1,2) or (2,3) ring )
>
>
> Regards,
> Ranjith
>
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