On 09/21/2010 11:15 PM, Ranjith wrote:
> Hi all,
> Kindly comment on the above behaviour
> Regards,
> Ranjith
>
> On Tue, Sep 21, 2010 at 9:52 PM, Ranjith <[email protected]
> <mailto:[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
>
>
>

Ranjith,

Which version of corosync are you running?

can you run corosync-blackbox and attach the output?

Thanks
-steve

>
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