[ClusterLabs] corosync not able to form cluster

[Prasad Nagaraj]

Hi - As you can see in the corosync.conf details - i have already kept
debug: on

Thanks!

On Thu, 7 Jun 2018, 8:03 pm Christine Caulfield, <ccaulfie at redhat.com>
wrote:

> On 07/06/18 15:24, Prasad Nagaraj wrote:
> >
> > No iptables or otherwise firewalls are setup on these nodes.
> >
> > One observation is that each node sends messages on with its own ring
> > sequence number which is not converging.. I have seen that in a good
> > cluster, when nodes respond with same sequence number, the membership is
> > automatically formed. But in our case, that is not the case.
> >
>
> That's just a side-effect of the cluster not forming. It's not causing
> it. Can you enable full corosync debugging (just add debug:on to the end
> of the logging {} stanza) and see if that has any more useful
> information (I only need the corosync bits, not the pcmk ones)
>
> Chrissie
>
> > Example: we can see that one node sends
> > Jun 07 07:55:04 corosync [pcmk  ] notice: pcmk_peer_update: Transitional
> > membership event on ring 71084: memb=1, new=0, lost=0
> > .....
> > Jun 07 07:55:16 corosync [pcmk  ] notice: pcmk_peer_update: Transitional
> > membership event on ring 71096: memb=1, new=0, lost=0
> > Jun 07 07:55:16 corosync [pcmk  ] notice: pcmk_peer_update: Stable
> > membership event on ring 71096: memb=1, new=0, lost=0
> >
> > other node sends messages with its own numbers
> > Jun 07 07:55:12 corosync [pcmk  ] notice: pcmk_peer_update: Transitional
> > membership event on ring 71088: memb=1, new=0, lost=0
> > Jun 07 07:55:12 corosync [pcmk  ] notice: pcmk_peer_update: Stable
> > membership event on ring 71088: memb=1, new=0, lost=0
> > .......
> > Jun 07 07:55:24 corosync [pcmk  ] notice: pcmk_peer_update: Transitional
> > membership event on ring 71100: memb=1, new=0, lost=0
> > Jun 07 07:55:24 corosync [pcmk  ] notice: pcmk_peer_update: Stable
> > membership event on ring 71100: memb=1, new=0, lost=0
> >
> > Any idea why this happens, and why the seq. numbers from different nodes
> > are not converging ?
> >
> > Thanks!
> >
> >
> >
> >
> >
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