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<div class="moz-cite-prefix">On 6/19/20 12:13 AM, Howard wrote:<br>
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<div>Thanks for all the help so far. With your assistance, I'm
very close to stable.</div>
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<div>Made the following changes to the vmfence stonith resource:</div>
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<div>Meta Attrs: failure-timeout=30m migration-threshold=10<br>
Operations: monitor interval=60s
(vmfence-monitor-interval-60s)<br>
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<div>If I understand this correctly, it will check if the
fencing device is online every 60 seconds. It will try 10
times and then mark the node ineligible. After 30 minutes it
will start trying again.</div>
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<div dir="ltr" class="gmail_attr">On Thu, Jun 18, 2020 at 12:29
PM Ken Gaillot <<a href="mailto:kgaillot@redhat.com"
moz-do-not-send="true">kgaillot@redhat.com</a>> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On
Thu, 2020-06-18 at 21:32 +0300, Andrei Borzenkov wrote:<br>
> 18.06.2020 18:24, Ken Gaillot пишет:<br>
> > Note that a failed start of a stonith device will
not prevent the<br>
> > cluster from using that device for fencing. It just
prevents the<br>
> > cluster from monitoring the device.<br>
> > <br>
> <br>
> My understanding is that if stonith resource cannot run
anywhere, it<br>
> also won't be used for stonith. When failcount exceeds
threshold,<br>
> resource is banned from node. If it happens on all nodes,
resource<br>
> cannot run anywhere and so won't be used for stonith.
Start failure<br>
> automatically sets failcount to INFINITY.<br>
> <br>
> Or do I misunderstand something?<br>
<br>
I had to test to confirm, but a stonith resource stopped due
to<br>
failures can indeed be used. Only stonith resources stopped
via<br>
location constraints (bans) or target-role=Stopped are
prevented from<br>
being used.<br>
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Unfortunately this could be a bit tricky to test as fenced updates<br>
the device-list on configuration changes but scores as well
influence<br>
if a device is taken into that list.<br>
So there is as well a possible dependency on when the device-list
has been<br>
updated most recently.<br>
Don't know if it is relevant for this config but unfortunately
something<br>
to have in the back of one's mind in case of more complex fencing<br>
setups.<br>
An uglyness that is known for a long time but there is no easy way<br>
to solve the issue without loosing part of the independence and with<br>
that robustness of the fencing subsystem.<br>
<br>
Klaus<br>
<blockquote type="cite"
cite="mid:CAO51vj7RniJZ60kAkmcgqZTouBjBwgkaKDqDnqSvh32+JDbd7Q@mail.gmail.com">
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
-- <br>
Ken Gaillot <<a href="mailto:kgaillot@redhat.com"
target="_blank" moz-do-not-send="true">kgaillot@redhat.com</a>><br>
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