[ClusterLabs] Antw: Re: Antw: [EXT] Node fenced for unknown reason

[Ulrich Windl]

>>> Steffen Vinther Sørensen <svinther at gmail.com> schrieb am 15.04.2021 um
14:56 in
Nachricht
<CALhdMBiXZoYF-Gxg82oNT4MGFm6Q-_imCeUVHyPgWKy41JjFSg at mail.gmail.com>:
> On Thu, Apr 15, 2021 at 2:29 PM Ulrich Windl
> <Ulrich.Windl at rz.uni-regensburg.de> wrote:
>>
>> >>> Steffen Vinther Sørensen <svinther at gmail.com> schrieb am 15.04.2021 um
>> 13:10 in
>> Nachricht
>> <CALhdMBhMQRwmgoWEWuiGMDr7HfVOTTKvW8=NQMs2P2e9p8y9Jw at mail.gmail.com>:
>> > Hi there,
>> >
>> > In this 3 node cluster, node03 been offline for a while, and being
>> > brought up to service. Then a migration of a VirtualDomain is being
>> > attempted, and node02 is then fenced.
>> >
>> > Provided is logs from all 2 nodes, and the 'pcs config' as well as a
>> > bzcatted pe-warn. Anyone with an idea of why the node was fenced ? Is
>> > it because of the failed ipmi monitor warning ?
>>
>> After a short glace it looks as if the network traffic used for VM
migration
>> killed the corosync (or other) communication.
>>
> 
> May I ask what part is making you think so ?

The part that I saw no reason for an intended fencing.

> 
>> >
>> >
>> > Here is the outline:
>> >
>> > At 06:58:27 node03 is being activated with 'pcs start node03', nothing
>> > suspicious in the logs
>> >
>> > At  06:59:17 a resource migration is attempted from node02 to node03
>> > with 'pcs resource move sikkermail30 kvm03-node02.logiva-gcs.dk'
>> >
>> >
>> > on node01 this happens:
>> >
>> > Apr 15 06:59:17 kvm03-node01 pengine[29024]:  warning: Processing
>> > failed monitor of ipmi-fencing-node01 on kvm03-node02.logiva-gcs.dk:
>> > unknown error
>> >
>> > And node02 is fenced ?
>> >
>> > /Steffen
>>
>>
>>
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