[Pacemaker] TOTEM Retransmit list in logs when a node gets up

[Digimer]

This generally happens if the network is slow or congested. It is 
corosync saying it needs to resend some messages. It is not uncommon for 
it to happen now and then, but that is a fairly large amount of retransmits.

Is your network slow or saturated often? It might be that the traffic 
from the join is enough to push a congested network to the edge.

On 13/11/14 08:07 AM, Daniel Dehennin wrote:
> Hello,
>
> My cluster seems to works correctly but when I start corosync and
> pacemaker on one of them[1] I start to have some TOTEM logs like this:
>
> #+begin_src
> Nov 13 14:00:10 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4e 4f
> Nov 13 14:00:10 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 46 47 48 49 4a 4b 4c 4d 4e 4f
> Nov 13 14:00:10 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4b 4c 4d 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 47 48 49 4a 4b 4c 4d 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 47 48 49 4a 4b 4c 4d 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4b 4c 4d 4e 4f
> Nov 13 14:00:30 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4c 4d 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4c 4d 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4d 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 47 48 49 4a 4b 4c 4d 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4a 4b 4c 4d 4e 4f
> Nov 13 14:00:35 nebula3 corosync[5345]:   [TOTEM ] Retransmit List: 4b 4c 4d 4e 4f
> #+end_src
>
> I do not understand what happens, do you have any hints?
>
> Regards.
>
> Footnotes:
> [1]  the VM using two cards http://oss.clusterlabs.org/pipermail/pacemaker/2014-November/022962.html
>
>
>
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