[ClusterLabs] Antw: why is node fenced ?

Lentes, Bernd bernd.lentes at helmholtz-muenchen.de
Tue Aug 13 04:54:29 EDT 2019

----- On Aug 13, 2019, at 9:00 AM, Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de wrote:

> Personally I feel more save with updates when the whole cluster node is
> offline, not standby. When you are going to boot anyway, it won't make much of
> a difference. Also you don't have to remember to put the node back online in
> the configuration.

> For your case: After Rebooting the first node, the second one was DC. If you
> reboot that, the first node becomes DC, but when booting node 2 it still have
> the old config saying it it the DC. So both nodes have to agree on that. Maybe
> that's why the cluster is "unclean" for a while. Did it "go away" after some
> time?

For debugging, e.g. after fencing: is there something in the logs form where
i recognize which one was DC and which not ? E.g. some differences in the pacemaker.log ?

What is about changes of the CIB and the following actions ? If after a diff in the CIB pengine is doing s.th.,
this must be the DC i guess.


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