Re: [ClusterLabs] Pacemaker confirm that node was fenced successfully

2018-08-13 Thread Ken Gaillot 
On Mon, 2018-08-13 at 18:13 +0200, FeldHost™ Admin wrote:
> Hello, thanks for reply, so basiclly, can I leverage existing cli
> tools and do for ex. call crm node fence xyz?

Yes

> 
> S pozdravem Kristián Feldsam
> Tel.: +420 773 303 353, +421 944 137 535
> E-mail.: supp...@feldhost.cz
> 
> www.feldhost.cz - FeldHost™ – Hostingové služby
> prispôsobíme vám. Máte špecifické požiadavky? Poradíme si s nimi.
> 
> FELDSAM s.r.o.
> V rohu 434/3
> Praha 4 – Libuš, PSČ 142 00
> IČ: 290 60 958, DIČ: CZ290 60 958
> C 200350 vedená u Městského soudu v Praze
> 
> Banka: Fio banka a.s.
> Číslo účtu: 2400330446/2010
> BIC: FIOBCZPPXX
> IBAN: CZ82 2010  0024 0033 0446
> 
> > On 13 Aug 2018, at 17:15, Ken Gaillot  wrote:
> > 
> > On Sat, 2018-08-11 at 17:38 +0200, FeldHost™ Admin wrote:
> > > Hi all, I have question:
> > > 
> > > We have Corosync/Pacemaker cluster running for KVM
> > > virtualisation. VM
> > > Instances are managed by external software (Opennebula). To
> > > achieve
> > > automatic migration of running VMs from failed node, external sw
> > > need
> > > fence node and confirm that was fenced successfully. When node
> > > fail,
> > > it will be fenced by cluster stack, so I don't want to do second
> > > fencing by external sw, but instead I want to connect to alive
> > > nodes
> > > and get fencing status. Is there some API in pacemaker to get it
> > > or I
> > > need to somehow parse result from pcs/crmsh?
> > 
> > Hi,
> > 
> > You can call stonith_admin, or use the pacemaker fencing client API
> > (used for example by DLM). The API documentation is rudimentary:
> > 
> > http://clusterlabs.org/pacemaker/doxygen/Pacemaker-1.1.18/stonith-n
> > g_8h.html
> > 
> > Be sure you click on "stonith_api_operations_s" for descriptions of
> > the
> > API functions.
> > 
> > Whether you use the API or stonith_admin, pacemaker will not fence
> > twice if a request arrives while another identical request is in
> > progress.
> > 
> > > Thank you for reply.
> > > 
> > > S pozdravem Kristián Feldsam
> > > Tel.: +420 773 303 353, +421 944 137 535
> > > E-mail.: supp...@feldhost.cz
> > > 
> > > www.feldhost.cz - FeldHost™ – Hostingové služby
> > > prispôsobíme vám. Máte špecifické požiadavky? Poradíme si s nimi.
> > > 
> > > FELDSAM s.r.o.
> > > V rohu 434/3
> > > Praha 4 – Libuš, PSČ 142 00
> > > IČ: 290 60 958, DIČ: CZ290 60 958
> > > C 200350 vedená u Městského soudu v Praze
> > > 
> > > Banka: Fio banka a.s.
> > > Číslo účtu: 2400330446/2010
> > > BIC: FIOBCZPPXX
> > > IBAN: CZ82 2010  0024 0033 0446
> > > 
> > > ___
> > > Users mailing list: Users@clusterlabs.org
> > > https://lists.clusterlabs.org/mailman/listinfo/users
> > > 
> > > Project Home: http://www.clusterlabs.org
> > > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scra
> > > tch.
> > > pdf
> > > Bugs: http://bugs.clusterlabs.org
> > -- 
> > Ken Gaillot 
> > ___
> > Users mailing list: Users@clusterlabs.org
> > https://lists.clusterlabs.org/mailman/listinfo/users
> > 
> > Project Home: http://www.clusterlabs.org
> > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratc
> > h.pdf
> > Bugs: http://bugs.clusterlabs.org
> 
> ___
> Users mailing list: Users@clusterlabs.org
> https://lists.clusterlabs.org/mailman/listinfo/users
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.
> pdf
> Bugs: http://bugs.clusterlabs.org
-- 
Ken Gaillot 
___
Users mailing list: Users@clusterlabs.org
https://lists.clusterlabs.org/mailman/listinfo/users

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Re: [ClusterLabs] Pacemaker confirm that node was fenced successfully

2018-08-13 Thread FeldHost™ Admin 
Hello, thanks for reply, so basiclly, can I leverage existing cli tools and do 
for ex. call crm node fence xyz?

S pozdravem Kristián Feldsam
Tel.: +420 773 303 353, +421 944 137 535
E-mail.: supp...@feldhost.cz

www.feldhost.cz - FeldHost™ – Hostingové služby prispôsobíme vám. Máte 
špecifické požiadavky? Poradíme si s nimi.

FELDSAM s.r.o.
V rohu 434/3
Praha 4 – Libuš, PSČ 142 00
IČ: 290 60 958, DIČ: CZ290 60 958
C 200350 vedená u Městského soudu v Praze

Banka: Fio banka a.s.
Číslo účtu: 2400330446/2010
BIC: FIOBCZPPXX
IBAN: CZ82 2010  0024 0033 0446

> On 13 Aug 2018, at 17:15, Ken Gaillot  wrote:
> 
> On Sat, 2018-08-11 at 17:38 +0200, FeldHost™ Admin wrote:
>> Hi all, I have question:
>> 
>> We have Corosync/Pacemaker cluster running for KVM virtualisation. VM
>> Instances are managed by external software (Opennebula). To achieve
>> automatic migration of running VMs from failed node, external sw need
>> fence node and confirm that was fenced successfully. When node fail,
>> it will be fenced by cluster stack, so I don't want to do second
>> fencing by external sw, but instead I want to connect to alive nodes
>> and get fencing status. Is there some API in pacemaker to get it or I
>> need to somehow parse result from pcs/crmsh?
> 
> Hi,
> 
> You can call stonith_admin, or use the pacemaker fencing client API
> (used for example by DLM). The API documentation is rudimentary:
> 
> http://clusterlabs.org/pacemaker/doxygen/Pacemaker-1.1.18/stonith-ng_8h.html 
> 
> 
> Be sure you click on "stonith_api_operations_s" for descriptions of the
> API functions.
> 
> Whether you use the API or stonith_admin, pacemaker will not fence
> twice if a request arrives while another identical request is in
> progress.
> 
>> 
>> Thank you for reply.
>> 
>> S pozdravem Kristián Feldsam
>> Tel.: +420 773 303 353, +421 944 137 535
>> E-mail.: supp...@feldhost.cz
>> 
>> www.feldhost.cz - FeldHost™ – Hostingové služby
>> prispôsobíme vám. Máte špecifické požiadavky? Poradíme si s nimi.
>> 
>> FELDSAM s.r.o.
>> V rohu 434/3
>> Praha 4 – Libuš, PSČ 142 00
>> IČ: 290 60 958, DIČ: CZ290 60 958
>> C 200350 vedená u Městského soudu v Praze
>> 
>> Banka: Fio banka a.s.
>> Číslo účtu: 2400330446/2010
>> BIC: FIOBCZPPXX
>> IBAN: CZ82 2010  0024 0033 0446
>> 
>> ___
>> Users mailing list: Users@clusterlabs.org
>> https://lists.clusterlabs.org/mailman/listinfo/users
>> 
>> Project Home: http://www.clusterlabs.org
>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.
>> pdf
>> Bugs: http://bugs.clusterlabs.org
> -- 
> Ken Gaillot mailto:kgail...@redhat.com>>
> ___
> Users mailing list: Users@clusterlabs.org 
> https://lists.clusterlabs.org/mailman/listinfo/users 
> 
> 
> Project Home: http://www.clusterlabs.org 
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf 
> 
> Bugs: http://bugs.clusterlabs.org 
___
Users mailing list: Users@clusterlabs.org
https://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org

Re: [ClusterLabs] Pacemaker confirm that node was fenced successfully

2018-08-13 Thread Ken Gaillot 
On Sat, 2018-08-11 at 17:38 +0200, FeldHost™ Admin wrote:
> Hi all, I have question:
> 
> We have Corosync/Pacemaker cluster running for KVM virtualisation. VM
> Instances are managed by external software (Opennebula). To achieve
> automatic migration of running VMs from failed node, external sw need
> fence node and confirm that was fenced successfully. When node fail,
> it will be fenced by cluster stack, so I don't want to do second
> fencing by external sw, but instead I want to connect to alive nodes
> and get fencing status. Is there some API in pacemaker to get it or I
> need to somehow parse result from pcs/crmsh?

Hi,

You can call stonith_admin, or use the pacemaker fencing client API
(used for example by DLM). The API documentation is rudimentary:

http://clusterlabs.org/pacemaker/doxygen/Pacemaker-1.1.18/stonith-ng_8h.html

Be sure you click on "stonith_api_operations_s" for descriptions of the
API functions.

Whether you use the API or stonith_admin, pacemaker will not fence
twice if a request arrives while another identical request is in
progress.

> 
> Thank you for reply.
> 
> S pozdravem Kristián Feldsam
> Tel.: +420 773 303 353, +421 944 137 535
> E-mail.: supp...@feldhost.cz
> 
> www.feldhost.cz - FeldHost™ – Hostingové služby
> prispôsobíme vám. Máte špecifické požiadavky? Poradíme si s nimi.
> 
> FELDSAM s.r.o.
> V rohu 434/3
> Praha 4 – Libuš, PSČ 142 00
> IČ: 290 60 958, DIČ: CZ290 60 958
> C 200350 vedená u Městského soudu v Praze
> 
> Banka: Fio banka a.s.
> Číslo účtu: 2400330446/2010
> BIC: FIOBCZPPXX
> IBAN: CZ82 2010  0024 0033 0446
> 
> ___
> Users mailing list: Users@clusterlabs.org
> https://lists.clusterlabs.org/mailman/listinfo/users
> 
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.
> pdf
> Bugs: http://bugs.clusterlabs.org
-- 
Ken Gaillot 
___
Users mailing list: Users@clusterlabs.org
https://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org

[ClusterLabs] Pacemaker confirm that node was fenced successfully

2018-08-11 Thread FeldHost™ Admin 
Hi all, I have question:

We have Corosync/Pacemaker cluster running for KVM virtualisation. VM Instances 
are managed by external software (Opennebula). To achieve automatic migration 
of running VMs from failed node, external sw need fence node and confirm that 
was fenced successfully. When node fail, it will be fenced by cluster stack, so 
I don't want to do second fencing by external sw, but instead I want to connect 
to alive nodes and get fencing status. Is there some API in pacemaker to get it 
or I need to somehow parse result from pcs/crmsh?

Thank you for reply.

S pozdravem Kristián Feldsam
Tel.: +420 773 303 353, +421 944 137 535
E-mail.: supp...@feldhost.cz

www.feldhost.cz - FeldHost™ – Hostingové služby prispôsobíme vám. Máte 
špecifické požiadavky? Poradíme si s nimi.

FELDSAM s.r.o.
V rohu 434/3
Praha 4 – Libuš, PSČ 142 00
IČ: 290 60 958, DIČ: CZ290 60 958
C 200350 vedená u Městského soudu v Praze

Banka: Fio banka a.s.
Číslo účtu: 2400330446/2010
BIC: FIOBCZPPXX
IBAN: CZ82 2010  0024 0033 0446

___
Users mailing list: Users@clusterlabs.org
https://lists.clusterlabs.org/mailman/listinfo/users

Project Home: http://www.clusterlabs.org
Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
Bugs: http://bugs.clusterlabs.org