The interesting part is that after repeating the process (update the file, stop
& start pcsd and pcs host auth ) everything is working fine including the web
UI.
Best Regards,
Strahil Nikolov
On Mon, Apr 15, 2024 at 17:20, Strahil Nikolov via
Users wrote: Hi All,
I need your hel
Hi All,
I need your help to change the pcsd port.I set the port in /etc/sysconfig/pcsd
on all nodes:PCSD_PORT=3500
Yet, the daemon is not listening on it.
Best Regards,
Strahil Nikolov___
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Hi All,
I'm sorry for the previous post. Most probably it's not google-cloud-cli as
even after downgrading, fencing still doesn't work all the time.
Best Regards,
Strahil Nikolov
В сряда, 27 март 2024 г. в 15:39:06 ч. Гринуич+2, Strahil Nikolov via Users
написа:
the resource back to the previous
host and "downgraded" the 'google-cloud-cli' package.
Best Regards,
Strahil Nikolov
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Hi Oyvind
I found your e-mail in my spam folder.It seems 'gcloud-ra' doesn't exits and
it's not needed for the fence agent or the gcp-vpc-move-vip.
Best Regards,Strahil Nikolov
On Wed, Feb 7, 2024 at 13:26, Oyvind Albrigtsen wrote:
On 07/02/24 11:15 +0000, Strahil Nik
Hi,
I didn't see any redirect and I was puzzled.Currently, the firewall is still
blocking me and curl-ing it was the only test that came to my mind.
Best Regards,Strahil Nikolov
On Wed, Feb 21, 2024 at 8:56, Ivan Devat wrote: Hi,
the url https://fqdn:2224 redirects to https://fqdn
Hi All,
Is there a specific setup I missed in order to setup the web interface ?
Usually, you just login with the hacluster user on https://fqdn:2224 but when I
do a curl, I get an empty response.
Best Regards,Strahil Nikolov___
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Hi All,
This is my first cluster in the cloud and I have 2 questions that I'm hoping to
get a clue.
1. Where I can find the 'gcloud-ra' binary on EL9 system ? I have installed
resource-agents-cloud but I can't find it.
2. Is gcp-vpc-move-vip a good approach to setup the VIP ?
Best Regards,Strahil
ind those
resources.
Best Regards,
Strahil Nikolov
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Also both SuSE and Red Hat documentation is quite extensive and can be
considered as a good start.
Best Regards,Strahil Nikolov
On Wed, Aug 10, 2022 at 18:41, Turritopsis Dohrnii Teo En
Ming wrote: On Wed, 10 Aug 2022 at 23:37, Reid Wahl
wrote:
>
> On Wed, Aug 10, 2022 at 8
By the way I remember a lot of problems with fence_ilo & fence_ilo_ssh (due to
ILO).If you receive timeouts use fence_ipmi (you have to enable IPMI in ILO).
Best Regards,Strahil Nikolov
On Thu, Aug 4, 2022 at 23:34, Reid Wahl wrote:
___
Ma
able infra -> not without you explicitly
asking for that (and being capable of).
Best Regards,Strahil Nikolov
On Thu, Aug 4, 2022 at 9:38, Ulrich Windl
wrote: Hi!
FYI, here is a copy what I had sent to SUSE support (stating "Because of the
very same DNS resolution problem, stopping al
In clouds you can't just use VIPs.Use azure-lb resource instead.
Best Regards,Strahil Nikolov
On Fri, Jul 29, 2022 at 23:21, Reid Wahl wrote: On Fri,
Jul 29, 2022 at 1:02 PM Reid Wahl wrote:
>
> On Fri, Jul 29, 2022 at 12:52 PM Ross Sponholtz
> wrote:
> >
&g
Well, you can always make a single-node cluster with the quorum device's host
and setup systemd resource to keep the service up and running.With SBD, that
single-node cluster will suicide in case the machine ends in a unresponsive
state.
Best Regards,Strahil Nikolov
On Fri, Jul 15,
est Regards,Strahil Nikolov
On Tue, May 3, 2022 at 0:25, Ken Gaillot wrote: On
Mon, 2022-05-02 at 13:11 -0300, Salatiel Filho wrote:
> Hi, Ken, here is the info you asked for.
>
>
> # pcs constraint
> Location Constraints:
> Resource: fence-server1
> Disabled on:
>
Why do you use Linstor and not DRBD ?As far as I know Linstor is more suitable
for Kubernetes/Openshift .
Best Regards,Strahil Nikolov
On Thu, Apr 28, 2022 at 8:19, Eric Robinson wrote:
This is probably off-topic but I’ll try anyway. Do we have any Linstor gurus
around here? I’ve read
What is the output of 'gfs2_edit -p jindex /dev/shared_vg1/shared_lv1 |grep
journal
Source:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/configuring_gfs2_file_systems#proc_adding-gfs2-journal-creating-mounting-gfs2
Best Regards,Strahil Nikolov
You can use a meta attribute to expire failures . The attribute name is
'failure-timeout'I have used it for my fencing devices as during the night the
network was quite busy.
Best Regards,Strahil Nikolov
On Tue, Apr 26, 2022 at 23:54, Hayden, Robert via
Users wrote:
Rob
Set the corosync token to 1 miliseconds and adjust the consensus as per the
man 5 corosync.conf and give it a try.
Don't forget to sync the corosync settings among the cluster.
Best Regards,Strahil Nikolov
On Fri, Apr 15, 2022 at 15:27, vitaly wrote: Hello
Everybody.
I am s
7; , while nodeA has a score of 10 - once the node
joins, Dummy1 will move again to nodeA as the score will be:nodeA = 10, current
node = 1 due to stickiness.
Keep in mind that for groups, all resources' score sum up before evaluation.
Best Regards,Strahil Nikolov
On Mon, Apr 11, 2
debug start is doing the described in
https://wiki.clusterlabs.org/wiki/Debugging_Resource_Failures
Best Regards,Strahil Nikolov
On Mon, Apr 11, 2022 at 7:21, Aj Revelino wrote: Hi
Strahil, Yes I went through the documentation from Azure. In fact, we have 6
production clusters running
esource is again
'managed'.
When removing maintenance, it's always nice to 'crm_simulate' . One very good
article is https://www.suse.com/support/kb/doc/?id=19158 .
What is the output of SAPHanaSR-showAttr ?
Best Regards,Strahil Nikolov
On Sat, Apr
You can use 'kind' and 'symmetrical' to control order constraints. The default
value for symmetrical is 'true' which means that in order to stop dummy1 , the
cluster has to stop dummy1 & dummy2.
Best Regards,Strahil Nikolov
On Fri, Apr 8, 2022 at 1
least 15-20 min and enable it
back ?
Best Regards,Strahil Nikolov
On Thu, Mar 31, 2022 at 14:02, Ulrich
Windl wrote: >>> "Gao,Yan"
schrieb am 31.03.2022 um 11:18 in Nachricht
<67785c2f-f875-cb16-608b-77d63d9b0...@suse.com>:
> On 2022/3/31 9:03, Ulrich Windl
Corosync rings are never enough , especially when the network team has such
naughty hands.
Best Regards,Strahil Nikolov
On Mon, Mar 28, 2022 at 16:55, Ulrich
Windl wrote: >>> Strahil Nikolov via Users
schrieb am 28.03.2022 um
15:49 in Nachricht <1758982440.55908
One huge benefit of the new stack is that you can have 8 corosync rings, which
is really powerful.
Best Regards,Strahil Nikolov
On Mon, Mar 28, 2022 at 9:27, Christine caulfield wrote:
On 28/03/2022 03:30, Somanath Jeeva via Users wrote:
> Hi ,
>
> I am upgrading from cor
Also xmllint has '--xpath' (unless you are running something as old as RHEL6)
and is available on every linux distro.
Best Regards,Strahil Nikolov
On Mon, Mar 21, 2022 at 15:41, Ken Gaillot wrote: On
Mon, 2022-03-21 at 08:27 +0100, Ulrich Windl wrote:
> > > > K
You can try creating a dummy resource and colocate all clones with it.
Best Regards,Strahil Nikolov
On Tue, Mar 15, 2022 at 20:53, john tillman wrote: > On
15.03.2022 19:35, john tillman wrote:
>> Hello,
>>
>> I'm trying to guarantee that all my cloned drbd reso
illiseconds (at least based on the manpage)
Best Regards,Strahil Nikolov
On Wed, Mar 9, 2022 at 12:46, FLORAC Thierry wrote:
#yiv4997566984 P {margin-top:0;margin-bottom:0;}Hi,
I manage an active/passive PostgreSQL cluster using DRBD, LVM, Pacemaker and
Corosync on a Debian GNU/
I always used this one for triggering kdump when using
sbd:https://www.suse.com/support/kb/doc/?id=19873
On Fri, Feb 25, 2022 at 21:34, Reid Wahl wrote: On Fri,
Feb 25, 2022 at 3:47 AM Andrei Borzenkov wrote:
>
> On Fri, Feb 25, 2022 at 2:23 PM Reid Wahl wrote:
> >
> > On Fri, Feb 2
third location (even in a cloud
nearby).
Best Regards,Strahil Nikolov
On Fri, Feb 25, 2022 at 20:10, Viet Nguyen wrote:
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Strangely I can't see any timeouts set in at the example in
https://pve.proxmox.com/wiki/Fencing ?
Best Regards,Strahil Nikolov
On Tue, Feb 22, 2022 at 18:54, Sebastien BASTARD
wrote: Hello Strahil,
I don't have pcs software (corosync is embedded in proxmox), but I have &quo
fencing is the reboot mechanism
pcs status
Best Regards,Strahil Nikolov
On Tue, Feb 22, 2022 at 16:44, Sebastien BASTARD
wrote: Hello Strahil,
As I don't know the kind of fencing, here is the current configuration of
corosync :
logging {
debug: off
to_syslog: yes}
nodelist {
What kind of fencing are you using ?
Best Regards,Strahil Nikolov
On Tue, Feb 22, 2022 at 15:24, Sebastien BASTARD
wrote: Hello Strahil Nikolov,
Qdevice is not a vm. It is a Linux Debian, physical server.
Best regards.
Le mar. 22 févr. 2022 à 14:20, Strahil Nikolov a écrit :
Is the
Is the qdevice on a VM ?
Best Regards,Strahil Nikolov
On Tue, Feb 22, 2022 at 15:03, Sebastien BASTARD
wrote: ___
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Also,there is a way to tell the cluster to cleanup failures -> failure-timeout
Best Regards,Strahil Nikolov
On Sat, Feb 19, 2022 at 1:52, Jehan-Guillaume de Rorthais
wrote: Hello,
On Fri, 18 Feb 2022 21:44:58 +
"Larry G. Mills" wrote:
> ... This happened again r
Token timeout -> network issue ?
Just run a continious ping (with timestamp) and log it into a file (from each
host to other host + qdevice ip).
Best Regards,Strahil Nikolov
On Thu, Feb 17, 2022 at 11:38, Sebastien BASTARD
wrote: Hello CoroSync's team !
We currently have a
To be honest, I always check
https://documentation.suse.com/sle-ha/15-SP3/html/SLE-HA-all/cha-ha-storage-protect.html#sec-ha-storage-protect-watchdog-timings
for sbd and timings.
Best Regards,Strahil Nikolov
On Wed, Feb 16, 2022 at 19:31, Klaus Wenninger wrote
I haven't heard about removal of the libgfapi, so most probably ot's a
packaging issue.
The FUSE mount point can be setup via a cloned Filesystem resource and there
should be no problems with it and live migration should work.
Best Regards,Strahil Nikolov
On Tue, Feb 15, 202
ds samo old primary is promoted back, the IP never
disappeared while it always started on the correct side (where the master is).
Best Regards,Strahil Nikolov
On Fri, Feb 11, 2022 at 10:38, Jonno wrote: Hello all,
Thank you for your assistance.
Below is the config from my lab environment.
Shouldn't you use kind ' Mandatory' and simetrical TRUE ?
If true, the reverse of the constraint applies for the opposite action (for
example, if B starts after A starts, then B stops before A stops).
Best Regards,Strahil Nikolov
On Fri, Feb 11, 2022 at 9:11, Ulri
One drawback of that approach is that adding a the resource stop command will
also prevent the resources from starting once the UPS gets enough power and
start the servers.
Of course a script in cron (@reboot) or in systemd can overcome it.
Best Regards,Strahil Nikolov
On Thu, Feb 10
If you gracefully shutdown a node - pacemaker will migrate all resources away
so you need to shut them down simultaneously and all resources should be
stopped by the cluster.
Shutting down the nodes would be my choice.
Best Regards,Strahil Nikolov
On Wed, Feb 9, 2022 at 12:52, Lentes
I know... and the editor stuff can be bypassed, if the approach works.
Best Regards,Strahil Nikolov
On Sat, Jan 29, 2022 at 15:43, Digimer wrote:On
2022-01-29 03:16, Strahil Nikolov wrote:
I think there is pcs cluster edit --scope=resources (based on memory). Can you
try to
I think there is pcs cluster edit --scope=resources (based on memory).Can you
try to delete it from there ?
Best Regards,Strahil Nikolov
On Sat, Jan 29, 2022 at 7:12, Digimer wrote:
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Are you using HA-LVM or CLVM ?
Best Regards,Strahil Nikolov
On Thu, Jan 27, 2022 at 16:10, Ulrich
Windl wrote: Hi!
I know this is semi-offtopic, but I think it's important:
I've upgraded one cluster node being a Xen host from SLES15 SP2 to SLES15 SP3
using virtual DVD boot
idempotent and build all clusters from a
single role/formula, absolutely perfect and without missing components,
packages or settings.
Best Regards,
Strahil Nikolov
В четвъртък, 13 януари 2022 г., 19:35:57 Гринуич+2, Ken Gaillot
написа:
I think the use case is where senior admins c
To be honest, I don't see any benefit.Even if you have the stack translated,
when a more complex setup is needed -> you will always have to search in the
source/github issues/documentation/mailing list history and rely on English.
Best Regards,Strahil Nikolov
On Tue, Jan 11, 2022
ages/c/corosync-2.3.5-1.fc23.x86_64.rpm
which theoretically should be close enough.
P.S.: I couldn't find those versions for Fedora 22, but they seem available for
F23.
Best Regards,
Strahil Nikolov
В вторник, 23 ноември 2021 г., 21:11:58 Гринуич+2, vitaly
написа:
Hello,
I a
You are right, but usually when the SBD disk has failed, I always focus on
recovering it as soon as possible. Once the disk is recovered and the watcher
detects it back - shutting down is possible.
And of course disk-based sbd is better than nothing.
Best Regards,Strahil Nikolov
On Sun
te: On Sat, Nov 20, 2021 at 08:33:26PM +0000,
Strahil Nikolov via Users wrote:
> You can also use this 3rd node to provide iSCSI and then the SBD will
> be disk-full :D . The good thing about this type of setup is that you
> do won't need to put location constraints for the 3rd node.
W
ween a primary and
secondary (a.k.a master-slave ) replication.
Best Regards,
Strahil Nikolov
В петък, 19 ноември 2021 г., 21:46:22 Гринуич+2, john tillman
написа:
> On Fri, Nov 19, 2021 at 11:26:01AM -0500, john tillman wrote:
>> Anyone have any other ideas for a conf
Have you tried with ping and a location constraint for avoiding hosts that
cannot ping an extrrnal system.
Best Regards,Strahil Nikolov
On Mon, Nov 15, 2021 at 0:07, S Rogers wrote:
Using on-fail=fence is what I initially tried, but it doesn't work
unfortunately.
It looks like th
Also, check what 'drbdadm' has to tell you. Both nodes should be in sync,
otherwise pacemaker will prevent the failover.
Best Regards,Strahil Nikolov
On Sun, Nov 14, 2021 at 20:09, Andrei Borzenkov wrote:
On 14.11.2021 19:47, Neil McFadyen wrote:
> I have a Ubuntu 2
At least it's worth trying (/etc/sysconfig/pacemaker):PCMK_trace_files=*
Best Regards,Strahil Nikolov
On Sun, Oct 31, 2021 at 18:10, Vladislav Bogdanov
wrote: ___
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Have you checked the options in /etc/sysconfig/pacemaker as recommended in
https://documentation.suse.com/sle-ha/15-SP3/html/SLE-HA-all/app-ha-troubleshooting.html#sec-ha-troubleshooting-log
?
Best Regards,
Strahil Nikolov
В неделя, 31 октомври 2021 г., 13:33:43 ч. Гринуич+2, Andrei
Ah... That's the first thing I change.In SLES, that is defaulted to 10s and so
far I have never seen an environment that is stable enough for the default 1s
timeout.
Best Regards,Strahil Nikolov
On Sat, Oct 9, 2021 at 9:59, Jehan-Guillaume de Rorthais
wrote:
Le 9 octobre 2021 00:
What do you mean by 1s default timeout ?
Best Regards,Strahil Nikolov
On Fri, Oct 8, 2021 at 16:02, damiano giuliani
wrote: ___
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These 'dirty' sysctl settings are configureable. For large sequential I/O it's
desirable 'dirty' ratio/bytes to be bigger, while for small files/random I/O
it's better to be kept low.
Best Regards,
Strahil Nikolov
В вторник, 5 октомври 2021 г., 08:52:20 ч. Гр
Dif you try the 'ionice -c 2 -n 7 nice cp ' ?
Best Regards,Strahil Nikolov
On Thu, Sep 30, 2021 at 14:58, Lentes,
Bernd wrote:
- On Sep 30, 2021, at 3:55 AM, Gang He g...@suse.com wrote:
>>
>> 1) No problems during this step, the procedure just needs a f
Yeah,
it seems I missed the nodeid, so can you try setting the "name: hostname" in
the corosync.conf ?
Best Regards,
Strahil Nikolov
В вторник, 28 септември 2021 г., 10:34:41 ч. Гринуич+3, Strahil Nikolov via
Users написа:
Erm,
in my corosync.conf I got also 'na
Erm,
in my corosync.conf I got also 'name: the-name-of-the-host' and 'nodeid:
' .
I don't see these 2 in your config .
Best Regards,
Strahil Nikolov
В вторник, 28 септември 2021 г., 02:39:20 ч. Гринуич+3, Neitzert, Greg A
написа:
Hello,
We have an is
Hey Ken,
how should someone set the maintenace via pcs ?
Best Regards,Strahil Nikolov
On Mon, Sep 27, 2021 at 19:56, Ken Gaillot wrote: On
Mon, 2021-09-27 at 12:37 +0200, Lentes, Bernd wrote:
> Hi,
>
> i have a two-node cluster running on SLES 12SP5 with two HP servers
> and
I would use something liek this:
ionice -c 2 -n 7 nice cp XXX YYY
Best Regards,
Strahil Nikolov
В понеделник, 27 септември 2021 г., 13:37:31 ч. Гринуич+3, Lentes, Bernd
написа:
Hi,
i have a two-node cluster running on SLES 12SP5 with two HP servers and a
common FC SAN.
Most of my
#x27;t drop more
than 50% of the nodes simultaneously ?
Vest Regards,Strahil Nikolov
On Tue, Sep 7, 2021 at 21:08, Antony Stone
wrote: On Tuesday 07 September 2021 at 19:37:33, M N S H SNGHL wrote:
> I am looking for some suggestions here. I have created an 8 node HA cluster
> on m
In order to test properly, use firewall rules to drop the corosync traffic.I
remember that this test (ifdown NKC) was inefficient in previous versions of
corosync.
If you wish to be more safe, try to setup ocf:pacemaker:ping.
Best Regards,Strahil Nikolov
On Fri, Sep 3, 2021 at 5:09, 重力加速度
that.
Your setup looksfar close to the oVirt project ... (just mentioning).
Best Regards,Strahil Nikolov
Sent from Yahoo Mail on Android
On Sat, Aug 28, 2021 at 13:33, lejeczek via Users
wrote:
On 26/08/2021 10:35, Klaus Wenninger wrote:
>
>
> On Thu, Aug 26, 2021 at 11:13 AM
; module as the system is fenced via
SAN and even if not rebooted , there is no risk .
Best Regards,Strahil Nikolov
Sent from Yahoo Mail on Android
On Sat, Aug 28, 2021 at 10:14, Andrei Borzenkov wrote:
On Fri, Aug 27, 2021 at 8:11 PM Gerry R Sommerville wrote:
>
> Hey all,
>
>
> name="statusurl" value="http://localhost/server-status"/>
Can you show the apache config for the status page ? It must be accessible only
from localhost (127.0.0.1) and should not be reachable from the other nodes.
Bes
g and data on
a shared FS.
Sadly, I can't find my notes right now.
Best Regards,Strahil Nikolov
On Mon, Aug 9, 2021 at 13:43, Andreas Janning
wrote: Hi all,
we recently experienced an outage in our pacemaker cluster and I would like to
understand how we can configure the cluster to
>Because Asterisk at cityA is bound to a floating IP address, which is held
>onone of the three machines in cityA. I can't run Asterisk on all
>threemachines there because only one of them has the IP address.
That's not true. You can use a cloned IP resource with 'globally-unique=true'
which run
I still can't understand why the whole cluster will fail when only 3 nodes are
down and a qdisk is used.
CityA -> 3 nodes to run packageA -> 3 votesCityB -> 3 nodes to run packageB ->
3 votesCityC -> 1 node which cannot run any package (qdisk) -> 1 vote
Max votes:7Quorum: 4
As long as one city is
That's why you need a qdisk at a 3-rd location, so you will have 7 votes in
total.When 3 nodes in cityA die, all resources will be started on the remaining
3 nodes.
Best Regards,Strahil Nikolov
On Wed, Aug 4, 2021 at 17:23, Antony Stone
wrote: On Wednesday 04 August 2021 at 16:
1/html/Clusters_from_Scratch/_move_resources_manually.html
Best Regards,Strahil Nikolov
On Tue, Aug 3, 2021 at 22:16, Ervin Hegedüs wrote: Hi,
On Tue, Aug 03, 2021 at 05:46:51PM +, Strahil Nikolov via Users wrote:
> Yes.INFINITY= 100 (one million)-INFINITY=-100(negative one mi
Yes.INFINITY= 100 (one million)-INFINITY=-100(negative one mill)
Set stickiness > 100 .
Best Regards,Strahil Nikolov
> The `location` section overwrites the stickiness?
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Won't something like this work ? Each node in LA will have same score of 5000,
while other cities will be -5000.
pcs constraint location DummyRes1 rule score=5000 city eq LA
pcs constraint location DummyRes1 rule score=-5000 city ne LA
stickiness -> 1
Best Regards,Strahil Nikolov
Firewall issue ?
Did you check on corosync level if all nodes reach each other ?
Best Regards,
Strahil Nikolov
В сряда, 28 юли 2021 г., 16:32:51 ч. Гринуич+3, S Sathish S via Users
написа:
Hi Team,
we are trying to add node03 to existing cluster after adding we could see
So far, I never had a cluster with nodes directly connected to the same
switches. Usually it's a nodeA -> switchA -> switchB -> nodeB and sometimes
connectivity between switches goes down (for example a firewall rule).
Best Regards,
Strahil Nikolov
В сряда, 28 юли 2021
Hi,
consider using a 3rd system as a Q disk. Also, you can use iscsi from that node
as a SBD device, so you will have proper fencing .If you don't have a hardware
watchdog device, you can use softdog kernel module for that.
Best Regards,Strahil Nikolov
On Wed, Jul 21, 2021 at 1:45, Di
ouble.
Keep in mind that you can use either dirty_ratio or dirty_bytes and either
dirty_background_ratio or dirty_background_bytes , but never both.
Best Regards,
Strahil Nikolov
В вторник, 20 юли 2021 г., 18:04:36 ч. Гринуич+3, PASERO Florent
написа:
Thanks Ulrich !
Could you exp
Yep, just set the stickiness to something bigger than '0' (max is INFINITY ->
100)
Best Regards,Strahil Nikolov
On Thu, Jul 15, 2021 at 15:02, Ervin Hegedüs wrote: Hi
there,
I have to build a very simple cluster with only one resource: a virtual IP.
The "challeng
If you experience multiple outages, you should consider enabling the kdump
feature of sbd. It will increase the takeover time, but might provide valuable
info.
Best Regards,Strahil Nikolov
On Wed, Jul 14, 2021 at 15:12, Klaus Wenninger wrote
In some cases the third location has a single IP and it makes sense to use it
as QDevice. If it has multiple network connections to that location - use a
full blown node .
Best Regards,Strahil Nikolov
On Tue, Jul 13, 2021 at 20:44, Andrei Borzenkov wrote:
On 13.07.2021 19:52, Gerry R
Actually, I don't mind but it will be nice if I don't get kicked from time to
time due to too many bounces. :)
Best Regards,Strahil Nikolov
On Sat, 2021-07-10 at 12:34 +0100, lejeczek wrote:
> Hi Admins(of this mailing list)
>
> Could you please fix in DMARC(s) so tho
erformance tuning on both is not a trivial task - as any other
performance tuning.
Best Regards,Strahil Nikolov
On Sat, Jul 10, 2021 at 0:12, Eric Robinson wrote:
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I would try to add 'trace_ra=1' or 'trace_ra=1 trace_file=' to debug
it further. In the first option (without trace_file) , the file will be at
/var/lib/heartbeat/trace_ra//*timestamp
Are you sure that the system is not overloaded and can't respond in time ?
Best
Also, it's worth mentioning that you can still make changes without downtime.
For example you can edit corosync conf and push it to all nodes, then set
global maintenance, stop the cluster and then start it again.
Best Regards,Strahil Nikolov
On Mon, Jun 21, 2021 at 9:37, Jan Friesse
You can reload corosync via 'pcs' and I think that both are supported.The main
question is if you did reload corosync on all nodes in the cluster ?
Best Regards,Strahil Nikolov
On Sat, Jun 19, 2021 at 1:22, Gerry R Sommerville wrote:
Dear community,
I would like to ask few
Maybe you can try:
while true ; do echo '0' > /proc/sys/kernel/nmi_watchdog ; sleep 1 ; done
and in another shell stop pacemaker and sbd.
I guess the only way to easily reproduce is with sbd over iscsi.
Best Regards,Strahil Nikolov
On Tue, Jun 15, 2021 at 21:30, Andrei Borzenkov
l
be triggered.
Best Regards,
Strahil Nikolov
В вторник, 15 юни 2021 г., 18:47:06 ч. Гринуич+3, Andrei Borzenkov
написа:
On Tue, Jun 15, 2021 at 6:43 PM Strahil Nikolov wrote:
>
> How did you stop pacemaker ?
systemctl stop pacemaker
surprise :)
> Usually I use 'pcs cl
How did you stop pacemaker ?Usually I use 'pcs cluster stop' or it's crm
alternative.
Best Regards,Strahil Nikolov
On Tue, Jun 15, 2021 at 18:21, Andrei Borzenkov wrote:
We had the following situation
2-node cluster with single device (just single external storage
avai
Thanks for the update. Could it be something local to your environment ?
Have you checked mounting the OCFS2 on a vanilla system ?
Best Regards,Strahil Nikolov
On Tue, Jun 15, 2021 at 12:01, Ulrich
Windl wrote: Hi Guys!
Just to keep you informed on the issue:
I was informed that I'
Did you notice any delay in 'systemctl status openstack-cinder-scheduler' ? As
far as I know the cluster will use systemd (or even maybe dbus) to get the info
of the service.
Also, 10s monitor intercal seems quite aggressive - have you considered
increasing that ?
Best Regards,Strah
Based on the constraint rules you have mentioned , failure of mysql should not
cause a failover to another node. For better insight, you have to be able to
reproduce the issue and share the logs with the community.
Best Regards,Strahil Nikolov
On Sat, Jun 5, 2021 at 23:33, Eric Robinson
It shouldn't relocate or affect any other resource,as long as the stop
succeeds.If the stop operation times out or fails -> fencing kicks in.
Best Regards,Strahil Nikolov___
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Did you configure pacemaker blackbox ?
If not, it could be valuable in such cases.
Also consider updating as soon as possible. Most probably nobody can count the
bug fixes that were introduced between 7.5 and 7.9, nor anyone will be able to
help as you are running a pretty outdated version (even
I agree -> fencing is mandatory.
You can enable the debug logs by editing corosync.conf or
/etc/sysconfig/pacemaker.
In case simple reload doesn't work, you can set the cluster in global
maintenance, stop and then start the stack.
Best Regards,Strahil Nikolov
On Fri, May 28, 2021
ra (based on memory -> so use find/locate).
Best Regards,Strahil Nikolov
On Fri, May 28, 2021 at 22:10, Abithan Kumarasamy
wrote: Hello Team, We have been recently running some tests on our Pacemaker
clusters that involve two Pacemaker resources on two nodes respectively. The
test case
what is your fencing agent ?
Best Regards,Strahil Nikolov
On Thu, May 27, 2021 at 20:52, Eric Robinson wrote:
We found one of our cluster nodes down this morning. The server was up but
cluster services were not running. Upon examination of the logs, we found that
the cluster just
hen make a snapshot via your Virtualization tech
stack.
Best Regards,Strahil Nikolov
On Tue, May 18, 2021 at 13:52, Ulrich
Windl wrote: Hi!
I thought using the reflink feature of OCFS2 would be just a nice way to make
crash-consistent VM snapshots while they are running.
As it is a bit tri
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