HA on Non Responsive
Hello, there! Is it possible to reduce time to auto migrate machines when node is non responsive? Atenciosamente, Arthur Melo Linux User #302250
On 27 Nov 2017, at 12:58, Arthur Melo <arthur@afabrica.net> wrote:
Hello, there!
Is it possible to reduce time to auto migrate machines when node is non responsive?
if you configure power management on hosts so the actual state of VMs by fencing action it’s going to be faster do you have that configured? Thanks, michal
Atenciosamente, Arthur Melo Linux User #302250
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
I had configured, but, I want to migrate before fencing. It's too long to start the machine again when phisical host not start. Atenciosamente, Arthur Melo Linux User #302250 2017-11-27 18:44 GMT-02:00 Michal Skrivanek <michal.skrivanek@redhat.com>:
On 27 Nov 2017, at 12:58, Arthur Melo <arthur@afabrica.net> wrote:
Hello, there!
Is it possible to reduce time to auto migrate machines when node is non responsive?
if you configure power management on hosts so the actual state of VMs by fencing action it’s going to be faster do you have that configured?
Thanks, michal
Atenciosamente, Arthur Melo Linux User #302250
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_8A70ECB1-FDA1-4198-8338-AA26AAC6A8A6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8
On 28 Nov 2017, at 06:42, Arthur Melo <arthur@afabrica.net> wrote: =20 I had configured, but, I want to migrate before fencing. It's too long = to start the machine again when phisical host not start.
then how do you know it=E2=80=99s non responsive and how do you want to = make sure it=E2=80=99s not still running without fencing?
=20 Atenciosamente, Arthur Melo Linux User #302250 =20 =20 2017-11-27 18:44 GMT-02:00 Michal Skrivanek = <michal.skrivanek@redhat.com <mailto:michal.skrivanek@redhat.com>>: =20
On 27 Nov 2017, at 12:58, Arthur Melo <arthur@afabrica.net = <mailto:arthur@afabrica.net>> wrote:
Hello, there!
Is it possible to reduce time to auto migrate machines when node is = non responsive? =20 if you configure power management on hosts so the actual state of VMs = by fencing action it=E2=80=99s going to be faster do you have that configured? =20 Thanks, michal
Atenciosamente, Arthur Melo Linux User #302250
_______________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users = <http://lists.ovirt.org/mailman/listinfo/users> =20 =20
--Apple-Mail=_8A70ECB1-FDA1-4198-8338-AA26AAC6A8A6 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" = class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div = class=3D"">On 28 Nov 2017, at 06:42, Arthur Melo <<a = href=3D"mailto:arthur@afabrica.net" class=3D"">arthur@afabrica.net</a>>= wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><div = dir=3D"ltr" class=3D"">I had configured, but, I want to migrate before = fencing. It's too long to start the machine again when phisical host not = start.</div></div></blockquote><div><br class=3D""></div>then how do you = know it=E2=80=99s non responsive and how do you want to make sure it=E2=80= =99s not still running without fencing?</div><div><br = class=3D""><blockquote type=3D"cite" class=3D""><div class=3D""><div = class=3D"gmail_extra"><br clear=3D"all" class=3D""><div class=3D""><div = class=3D"gmail_signature" data-smartmail=3D"gmail_signature"><div = dir=3D"ltr" class=3D"">Atenciosamente,<br class=3D"">Arthur Melo<br = class=3D"">Linux User #302250<br class=3D""><br = class=3D""></div></div></div> <br class=3D""><div class=3D"gmail_quote">2017-11-27 18:44 GMT-02:00 = Michal Skrivanek <span dir=3D"ltr" class=3D""><<a = href=3D"mailto:michal.skrivanek@redhat.com" target=3D"_blank" = class=3D"">michal.skrivanek@redhat.com</a>></span>:<br = class=3D""><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 = .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=3D""><br = class=3D""> > On 27 Nov 2017, at 12:58, Arthur Melo <<a = href=3D"mailto:arthur@afabrica.net" class=3D"">arthur@afabrica.net</a>>= wrote:<br class=3D""> ><br class=3D""> > Hello, there!<br class=3D""> ><br class=3D""> > Is it possible to reduce time to auto migrate machines when node is = non responsive?<br class=3D""> <br class=3D""> </span>if you configure power management on hosts so the actual state of = VMs by fencing action it=E2=80=99s going to be faster<br class=3D""> do you have that configured?<br class=3D""> <br class=3D""> Thanks,<br class=3D""> michal<br class=3D""> <span class=3D"">><br class=3D""> > Atenciosamente,<br class=3D""> > Arthur Melo<br class=3D""> > Linux User #302250<br class=3D""> ><br class=3D""> </span>> ______________________________<wbr = class=3D"">_________________<br class=3D""> > Users mailing list<br class=3D""> > <a href=3D"mailto:Users@ovirt.org" class=3D"">Users@ovirt.org</a><br = class=3D""> > <a href=3D"http://lists.ovirt.org/mailman/listinfo/users" = rel=3D"noreferrer" target=3D"_blank" = class=3D"">http://lists.ovirt.org/<wbr = class=3D"">mailman/listinfo/users</a><br class=3D""> <br class=3D""> </blockquote></div><br class=3D""></div> </div></blockquote></div><br class=3D""></body></html>= --Apple-Mail=_8A70ECB1-FDA1-4198-8338-AA26AAC6A8A6--
The oVirt show if the phisical host is unresponsive. Virtual Machines appear with a "?" on the status and I cannot start in another machine. I have to mark "host has been restarted" and put in management mode. Atenciosamente, Arthur Melo Linux User #302250 2017-11-28 10:01 GMT-02:00 Michal Skrivanek <michal.skrivanek@redhat.com>:
On 28 Nov 2017, at 06:42, Arthur Melo <arthur@afabrica.net> wrote:
I had configured, but, I want to migrate before fencing. It's too long to start the machine again when phisical host not start.
then how do you know it’s non responsive and how do you want to make sure it’s not still running without fencing?
Atenciosamente, Arthur Melo Linux User #302250
2017-11-27 18:44 GMT-02:00 Michal Skrivanek <michal.skrivanek@redhat.com>:
On 27 Nov 2017, at 12:58, Arthur Melo <arthur@afabrica.net> wrote:
Hello, there!
Is it possible to reduce time to auto migrate machines when node is non responsive?
if you configure power management on hosts so the actual state of VMs by fencing action it’s going to be faster do you have that configured?
Thanks, michal
Atenciosamente, Arthur Melo Linux User #302250
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On Tue, Nov 28, 2017 at 2:14 PM, Arthur Melo <arthur@afabrica.net> wrote:
The oVirt show if the phisical host is unresponsive. Virtual Machines appear with a "?" on the status and I cannot start in another machine. I have to mark "host has been restarted" and put in management mode.
You might be missing the architecture here behind 'not responding'. If the host is not responding, we don't know what the status of the VM is. We don't know if the host is up or down. This has two consequences: 1. We can't migrate the VM (as we can't communicate with our host daemon - VDSM). 2. We can't run the VM elsewhere (as we can't be sure it's down, it might cause corruption if we run it twice). I've over-simplified a bit our architecture, as we have capabilities both for the host and the VM to see if they are still renewing their leases on the storage. In that case, we don't need to fence, but we still need to handle the situation somehow. Y. Atenciosamente,
Arthur Melo Linux User #302250
2017-11-28 10:01 GMT-02:00 Michal Skrivanek <michal.skrivanek@redhat.com>:
On 28 Nov 2017, at 06:42, Arthur Melo <arthur@afabrica.net> wrote:
I had configured, but, I want to migrate before fencing. It's too long to start the machine again when phisical host not start.
then how do you know it’s non responsive and how do you want to make sure it’s not still running without fencing?
Atenciosamente, Arthur Melo Linux User #302250
2017-11-27 18:44 GMT-02:00 Michal Skrivanek <michal.skrivanek@redhat.com> :
On 27 Nov 2017, at 12:58, Arthur Melo <arthur@afabrica.net> wrote:
Hello, there!
Is it possible to reduce time to auto migrate machines when node is non responsive?
if you configure power management on hosts so the actual state of VMs by fencing action it’s going to be faster do you have that configured?
Thanks, michal
Atenciosamente, Arthur Melo Linux User #302250
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (3)
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Arthur Melo -
Michal Skrivanek -
Yaniv Kaul