
--_000_BFAB40933B3367488CE6299BAF8592D1014E52CC4584SOCRATESasl_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hi All, I have 2 hosts which are at remote locations where the ISP is forcing a con= nection reset after some days. During that reset the connection will be dow= n for at most 2 minutes and the engine starts to complain about the hosts n= ot being reachable. What is the right value to tweak to compensate this ? Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ?= And is it possible to only apply this for a certain cluster or DC or is it= global ? Thank you, Sven --_000_BFAB40933B3367488CE6299BAF8592D1014E52CC4584SOCRATESasl_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" xmlns:o=3D"urn:schemas-micr= osoft-com:office:office" xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" xmlns=3D"http:= //www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV=3D"Content-Type" CONTENT= =3D"text/html; charset=3Dus-ascii"><meta name=3DGenerator content=3D"Micros= oft Word 15 (filtered medium)"><style><!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-fareast-language:EN-US;} a:link, span.MsoHyperlink {mso-style-priority:99; color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {mso-style-priority:99; color:#954F72; text-decoration:underline;} span.E-MailFormatvorlage17 {mso-style-type:personal-compose; font-family:"Calibri",sans-serif; color:windowtext;} .MsoChpDefault {mso-style-type:export-only; font-family:"Calibri",sans-serif; mso-fareast-language:EN-US;} @page WordSection1 {size:612.0pt 792.0pt; margin:70.85pt 70.85pt 2.0cm 70.85pt;} div.WordSection1 {page:WordSection1;} --></style><!--[if gte mso 9]><xml> <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> </xml><![endif]--><!--[if gte mso 9]><xml> <o:shapelayout v:ext=3D"edit"> <o:idmap v:ext=3D"edit" data=3D"1" /> </o:shapelayout></xml><![endif]--></head><body lang=3DDE link=3D"#0563C1" v= link=3D"#954F72"><div class=3DWordSection1><p class=3DMsoNormal>Hi All, <o:= p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>= <span lang=3DEN-US>I have 2 hosts which are at remote locations where the I= SP is forcing a connection reset after some days. During that reset the con= nection will be down for at most 2 minutes and the engine starts to complai= n about the hosts not being reachable. What is the right value to tweak to = compensate this ? <o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DE= N-US>Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTime= out ? And is it possible to only apply this for a certain cluster or DC or = is it global ? <o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-U= S style=3D'mso-fareast-language:DE'><o:p> </o:p></span></p><p class=3D= MsoNormal><span lang=3DEN-US style=3D'mso-fareast-language:DE'>Thank you, <= o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US style=3D'mso-f= areast-language:DE'><o:p> </o:p></span></p><p class=3DMsoNormal><span = lang=3DEN-US style=3D'mso-fareast-language:DE'>Sven </span><o:p></o:p></p><= /div></body></html>= --_000_BFAB40933B3367488CE6299BAF8592D1014E52CC4584SOCRATESasl_--

Hi Sven, Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased) iirc no other changes are needed, but CC-ing Martin just in case i'm wrong. Best regards, Oved On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations. Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues. Thanks, Piotr On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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

Ok, I'll try that one. Thank you -----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations. Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues. Thanks, Piotr On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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

Hi Piotr, I can't find that in the list of variables to set if I do an "engine-config -a" Is this something I have to setup first ? Thank you, Sven -----Ursprüngliche Nachricht----- Von: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] Im Auftrag von Sven Achtelik Gesendet: Donnerstag, 27. April 2017 10:04 An: Piotr Kliczewski <piotr.kliczewski@gmail.com>; Oved Ourfali <oourfali@redhat.com> Cc: users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts Ok, I'll try that one. Thank you -----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations. Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues. Thanks, Piotr On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Sven, Which version of ovirt-engine do you use? Thanks, Piotr On Mon, May 29, 2017 at 10:26 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi Piotr,
I can't find that in the list of variables to set if I do an "engine-config -a" Is this something I have to setup first ?
Thank you, Sven
-----Ursprüngliche Nachricht----- Von: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] Im Auftrag von Sven Achtelik Gesendet: Donnerstag, 27. April 2017 10:04 An: Piotr Kliczewski <piotr.kliczewski@gmail.com>; Oved Ourfali <oourfali@redhat.com> Cc: users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Ok, I'll try that one.
Thank you
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations.
Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues.
Thanks, Piotr
On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

oVirt Engine Version: 4.1.2.2-1.el7.centos -----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Montag, 29. Mai 2017 10:30 An: Sven Achtelik <Sven.Achtelik@eps.aero> Cc: Oved Ourfali <oourfali@redhat.com>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts Sven, Which version of ovirt-engine do you use? Thanks, Piotr On Mon, May 29, 2017 at 10:26 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi Piotr,
I can't find that in the list of variables to set if I do an "engine-config -a" Is this something I have to setup first ?
Thank you, Sven
-----Ursprüngliche Nachricht----- Von: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] Im Auftrag von Sven Achtelik Gesendet: Donnerstag, 27. April 2017 10:04 An: Piotr Kliczewski <piotr.kliczewski@gmail.com>; Oved Ourfali <oourfali@redhat.com> Cc: users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Ok, I'll try that one.
Thank you
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations.
Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues.
Thanks, Piotr
On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Sven, This config value is hidden. You can update it by running: su - postgres -c "psql engine -c "UPDATE vdc_options set option_value = '<your value in seconds here>' where option_name = 'vdsHeartbeatInSeconds'"" Please note that the default value is 30 seconds. and next you need to restart your engine. Thanks, Piotr On Mon, May 29, 2017 at 10:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
oVirt Engine Version: 4.1.2.2-1.el7.centos
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Montag, 29. Mai 2017 10:30 An: Sven Achtelik <Sven.Achtelik@eps.aero> Cc: Oved Ourfali <oourfali@redhat.com>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Sven,
Which version of ovirt-engine do you use?
Thanks, Piotr
On Mon, May 29, 2017 at 10:26 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi Piotr,
I can't find that in the list of variables to set if I do an "engine-config -a" Is this something I have to setup first ?
Thank you, Sven
-----Ursprüngliche Nachricht----- Von: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] Im Auftrag von Sven Achtelik Gesendet: Donnerstag, 27. April 2017 10:04 An: Piotr Kliczewski <piotr.kliczewski@gmail.com>; Oved Ourfali <oourfali@redhat.com> Cc: users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Ok, I'll try that one.
Thank you
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations.
Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues.
Thanks, Piotr
On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

Seems to be wokring. Thank you ! -----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Montag, 29. Mai 2017 10:41 An: Sven Achtelik <Sven.Achtelik@eps.aero> Cc: Oved Ourfali <oourfali@redhat.com>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts Sven, This config value is hidden. You can update it by running: su - postgres -c "psql engine -c "UPDATE vdc_options set option_value = '<your value in seconds here>' where option_name = 'vdsHeartbeatInSeconds'"" Please note that the default value is 30 seconds. and next you need to restart your engine. Thanks, Piotr On Mon, May 29, 2017 at 10:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
oVirt Engine Version: 4.1.2.2-1.el7.centos
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Montag, 29. Mai 2017 10:30 An: Sven Achtelik <Sven.Achtelik@eps.aero> Cc: Oved Ourfali <oourfali@redhat.com>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Sven,
Which version of ovirt-engine do you use?
Thanks, Piotr
On Mon, May 29, 2017 at 10:26 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi Piotr,
I can't find that in the list of variables to set if I do an "engine-config -a" Is this something I have to setup first ?
Thank you, Sven
-----Ursprüngliche Nachricht----- Von: users-bounces@ovirt.org [mailto:users-bounces@ovirt.org] Im Auftrag von Sven Achtelik Gesendet: Donnerstag, 27. April 2017 10:04 An: Piotr Kliczewski <piotr.kliczewski@gmail.com>; Oved Ourfali <oourfali@redhat.com> Cc: users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
Ok, I'll try that one.
Thank you
-----Ursprüngliche Nachricht----- Von: Piotr Kliczewski [mailto:piotr.kliczewski@gmail.com] Gesendet: Donnerstag, 27. April 2017 09:59 An: Oved Ourfali <oourfali@redhat.com> Cc: Sven Achtelik <Sven.Achtelik@eps.aero>; users@ovirt.org Betreff: Re: [ovirt-users] Timeout for Hosts
I think that you are looking for vdsHeartbeatInSeconds which specifies acceptable time of no activity. You can increase it which would make it more resilient to network fluctuations.
Please note that it is part of the host life cycle and too big value would limit our ability to detect real network issues.
Thanks, Piotr
On Thu, Apr 27, 2017 at 8:36 AM, Oved Ourfali <oourfali@redhat.com> wrote:
Hi Sven,
Relevant configuration items are: vdsTimeout (which is set by default to 180 seconds, so you should be good) vdsHeartbeatInSeconds (this one should be increased)
iirc no other changes are needed, but CC-ing Martin just in case i'm wrong.
Best regards, Oved
On Thu, Apr 27, 2017 at 9:30 AM, Sven Achtelik <Sven.Achtelik@eps.aero> wrote:
Hi All,
I have 2 hosts which are at remote locations where the ISP is forcing a connection reset after some days. During that reset the connection will be down for at most 2 minutes and the engine starts to complain about the hosts not being reachable. What is the right value to tweak to compensate this ?
Is it on of these: TimeoutToResetVdsInSeconds, VdsRefreshRate, vdsTimeout ? And is it possible to only apply this for a certain cluster or DC or is it global ?
Thank you,
Sven
_______________________________________________ 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
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (3)
-
Oved Ourfali
-
Piotr Kliczewski
-
Sven Achtelik