Ken Gaillot
> I'm glad it's resolved, but for future reference, that does indicate a
> serious problem. It means the fencer is not accepting any requests, so
> any fencing attempts or even attempts to monitor a fencing device from
> that node will fail.
>
That sounds like pacemaker-fenced
Christine caulfield
> It sounds like you're running an old version of libqb, upgrading to
> libqb 2.0.6 (in RHEL 9.1) should fix those messages
Thanks a lot for the quick response! I will arrange the upgrade.
Regards,
tbskyd
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Hi:
the cluster is running under RHEL 9.0 elements. today I saw log
report strange errors like below:
Mar 27 13:07:06.287 example.com pacemaker-fenced[2405]
(qb_sys_mmap_file_open) error: couldn't allocate file
/dev/shm/qb-2405-2403-12-A9UUaJ/qb-request-stonith-ng-data:
Interrupted
Hi:
I am using RHEL 9.1 with pacemaker-cli-2.1.4-5. I tried command below:
> cibadmin -Q -o xxx
I expect the result tell me that "xxx" scope is not exist, but the
command return the whole configuration. is this the normal behavior?
thanks a lot for help.
Regards,
tbskyd
Ken Gaillot
> FYI, the old and new status XML are nearly identical. The old XML's
> outermost element is
>
>
>...
>
>
> while the new XML has
>
>
>...
>
>
>
> As long as you're not looking at those particular elements, parsing the
> XML output is the same.
>
> The format is
Tomas Jelinek
> As we are aware of the difficulties of using pcs in scripts, we indeed
> have a long term goal to provide machine readable output from pcs. Since
> pcs started with a focus on producing human readable output, it's a lot
> of work to do. Quite a big part of pcs code base cannot be
Strahil Nikolov
>
> By the way , how do you monitor your pacemaker clusters ?
> We are using Nagios and I found only 'check_crm' but it looks like it was
> made for crmsh and most probably won't work with pcs without modifications.
>
> Best Regards,
> Strahil Nikolov
we use zabbix so we wrote
Ulrich Windl
> "Coming from SUSE" I'm using crm shell for most tasks, and I think the syntax
> is quite good.
good for SUSE! unfortunately RHEL didn't include the utility...
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Hi:
I have some scripts which use 'pcs' and 'crm_mon'. I prefer pcs
since it is an all-in-one tool. but besides 'pcs cluster cib' it has
no stable text output. reading document of pacemaker 2.1 I found it
says:
"In addition to crm_mon and stonith_admin, the crmadmin, crm_resource,
Reid Wahl
> Disaster recovery is the main use case we had in mind. See the RHEL 8.2
> release notes:
> -
> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.2_release_notes/rhel-8-2-0-release#enhancement_high-availability-and-clusters
>
> I thought I also
Reid Wahl
> I don't think we do require fencing for single-node clusters. (Anyone at Red
> Hat, feel free to comment.) I vaguely recall an internal mailing list or IRC
> conversation where we discussed this months ago, but I can't find it now.
> I've also checked our support policies
Ulrich Windl
>
> >>> d tbsky schrieb am 08.04.2021 um 05:52 in Nachricht
> :
> > Hi:
> > I found RHEL 8.2 support single node cluster now. but I didn't
> > find further document to explain the concept. RHEL 8.2 also support
> > "disaster re
Hi:
I found RHEL 8.2 support single node cluster now. but I didn't
find further document to explain the concept. RHEL 8.2 also support
"disaster recovery cluster". so I think maybe a single node disaster
recovery cluster is not bad.
I think corosync is still necessary under single node
Klaus Wenninger
> Guess that heavily depends on what you are running inside your VMs.
> If the services inside don't need each other or anything provided by
> the other cluster-resources (or other way round) or everything is
> synchronizing independently from the cluster ...
> What you could
Klaus Wenninger
> In this case it might be useful not to wait some defined time
> hoping startup of the VM would have gone far enough that
> the IO load has already decayed enough.
> What about a resource that checks for something running
> inside the VM that indicates that startup has completed?
Reid Wahl
>
> An order constraint set with kind=Serialize (which is mentioned in the first
> reply to the thread you linked) seems like the most logical option to me. You
> could serialize a set of resource sets, where each inner set contains a
> VirtualDomain resource and an
Hi:
since the vm start/stop at once will consume disk IO, I want to
start/stop the vm
one-by-one with delay.
search the email-list I found the discussion
https://oss.clusterlabs.org/pipermail/pacemaker/2013-August/043128.html
now I am testing rhel8 with pacemaker 2.0.4. I wonder if
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