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Scenario
I have a hosted engine setup with 2 nodes with shared iscsi storage.
Question:
If I yanked the plug on the host that the hosted engine vm is running on, will it come
back up on the remaining host without any intervention?
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<html><body><div style="font-family: times new roman, new york, times,
serif; font-size: 12pt; color:
#000000"><div><br>Scenario</div><div>I have a hosted
engine setup with 2 nodes with shared iscsi
storage.<br></div><div><br></div><div>Question:<br></div><div>If
I yanked the plug on the host that the hosted engine vm is running on, will it come back
up on the remaining host without any
intervention?<br></div></div></body></html>
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1:24 a.m.
Technically yes, I believe there's a 10 minute or so delay before
it'll come up on the other host.
Pretty sure iscsi is not available for now, only NFS.
On Wed, Apr 16, 2014 at 4:08 AM, Maurice James <mjames(a)media-node.com> wrote:
Scenario
I have a hosted engine setup with 2 nodes with shared iscsi storage.
Question:
If I yanked the plug on the host that the hosted engine vm is running on,
will it come back up on the remaining host without any intervention?
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
2:18 a.m.
Is there any way to change that 10 minute delay?
----- Original Message -----
From: "Andrew Lau" <andrew(a)andrewklau.com>
To: "Maurice James" <mjames(a)media-node.com>
Cc: "users" <users(a)ovirt.org>
Sent: Tuesday, April 15, 2014 7:24:40 PM
Subject: Re: [ovirt-users] Hosted engine
Technically yes, I believe there's a 10 minute or so delay before
it'll come up on the other host.
Pretty sure iscsi is not available for now, only NFS.
On Wed, Apr 16, 2014 at 4:08 AM, Maurice James <mjames(a)media-node.com> wrote:
Scenario
I have a hosted engine setup with 2 nodes with shared iscsi storage.
Question:
If I yanked the plug on the host that the hosted engine vm is running on,
will it come back up on the remaining host without any intervention?
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
4:43 a.m.
Not that I know of.. someone else may now. Sorry
On Wed, Apr 16, 2014 at 10:18 AM, Maurice James <mjames(a)media-node.com> wrote:
Is there any way to change that 10 minute delay?
----- Original Message -----
From: "Andrew Lau" <andrew(a)andrewklau.com>
To: "Maurice James" <mjames(a)media-node.com>
Cc: "users" <users(a)ovirt.org>
Sent: Tuesday, April 15, 2014 7:24:40 PM
Subject: Re: [ovirt-users] Hosted engine
Technically yes, I believe there's a 10 minute or so delay before
it'll come up on the other host.
Pretty sure iscsi is not available for now, only NFS.
On Wed, Apr 16, 2014 at 4:08 AM, Maurice James <mjames(a)media-node.com> wrote:
>
> Scenario
> I have a hosted engine setup with 2 nodes with shared iscsi storage.
>
> Question:
> If I yanked the plug on the host that the hosted engine vm is running on,
> will it come back up on the remaining host without any intervention?
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
8:24 a.m.
New subject: Hosted engine experimental ISCSI support [WAS: Re: Hosted engine]
Il 16/04/2014 04:43, Andrew Lau ha scritto:
Not that I know of.. someone else may now. Sorry
On Wed, Apr 16, 2014 at 10:18 AM, Maurice James <mjames(a)media-node.com> wrote:
> Is there any way to change that 10 minute delay?
>
> ----- Original Message -----
> From: "Andrew Lau" <andrew(a)andrewklau.com>
> To: "Maurice James" <mjames(a)media-node.com>
> Cc: "users" <users(a)ovirt.org>
> Sent: Tuesday, April 15, 2014 7:24:40 PM
> Subject: Re: [ovirt-users] Hosted engine
>
> Technically yes, I believe there's a 10 minute or so delay before
> it'll come up on the other host.
> Pretty sure iscsi is not available for now, only NFS.
iSCSI support is currently under development.
The feature page is http://www.ovirt.org/Features/Self_Hosted_Engine_iSCSI_Support
You're welcome to help testing proposed patch http://gerrit.ovirt.org/26501
IMPORTANT: Don't use this build on production environment / storage!
In order to test it you can download ovirt-hosted-engine-setup from this jenkins build:
http://jenkins.ovirt.org/view/Packaging/job/ovirt-hosted-engine-setup_mas...
and ovirt-hosted-engine-ha from this jenkins build::
http://jenkins.ovirt.org/view/Packaging/job/ovirt-hosted-engine-ha_create...
Above builds include also experimental support for tagged vlans and bond interfaces
http://gerrit.ovirt.org/25894
Since this is an experimental development build, please don't open new BZ, just send
me an email attaching
vdsm, sanlock, libvirt, hosted-engine setup and ha logs.
Thanks
>
> On Wed, Apr 16, 2014 at 4:08 AM, Maurice James <mjames(a)media-node.com> wrote:
>>
>> Scenario
>> I have a hosted engine setup with 2 nodes with shared iscsi storage.
>>
>> Question:
>> If I yanked the plug on the host that the hosted engine vm is running on,
>> will it come back up on the remaining host without any intervention?
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
--
Sandro Bonazzola
Better technology. Faster innovation. Powered by community collaboration.
See how it works at redhat.com
9:48 a.m.
There is no config file, but if you really want to change it, then you
can play with the values in:
/usr/lib/python2.6/site-packages/ovirt_hosted_engine_ha/agent/constants.py
(or python 2.7 depending on your setup)
In the case when you pull the plug it should be driven by
ENGINE_BAD_HEALTH_EXPIRATION_SECS
--Jirka
On 04/16/2014 04:43 AM, Andrew Lau wrote:
Not that I know of.. someone else may now. Sorry
On Wed, Apr 16, 2014 at 10:18 AM, Maurice James <mjames(a)media-node.com> wrote:
> Is there any way to change that 10 minute delay?
>
> ----- Original Message -----
> From: "Andrew Lau" <andrew(a)andrewklau.com>
> To: "Maurice James" <mjames(a)media-node.com>
> Cc: "users" <users(a)ovirt.org>
> Sent: Tuesday, April 15, 2014 7:24:40 PM
> Subject: Re: [ovirt-users] Hosted engine
>
> Technically yes, I believe there's a 10 minute or so delay before
> it'll come up on the other host.
> Pretty sure iscsi is not available for now, only NFS.
>
> On Wed, Apr 16, 2014 at 4:08 AM, Maurice James <mjames(a)media-node.com> wrote:
>>
>> Scenario
>> I have a hosted engine setup with 2 nodes with shared iscsi storage.
>>
>> Question:
>> If I yanked the plug on the host that the hosted engine vm is running on,
>> will it come back up on the remaining host without any intervention?
>>
>> _______________________________________________
>> Users mailing list
>> Users(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
11:23 a.m.
Hi,
In the case when you pull the plug it should be driven by
ENGINE_BAD_HEALTH_EXPIRATION_SECS
Actually, if you pull the plug, then the other host will detect that the other host is not
responding after about a minute. And then it will try to start the VM.
>> Pretty sure iscsi is not available for now, only NFS.
Coming in 3.5
--
Martin Sivák
msivak(a)redhat.com
Red Hat Czech
RHEV-M SLA / Brno, CZ
----- Original Message -----
> There is no config file, but if you really want to change it, then you
> can play with the values in:
>
> /usr/lib/python2.6/site-packages/ovirt_hosted_engine_ha/agent/constants.py
> (or python 2.7 depending on your setup)
>
In the case when you pull the plug it should be driven by
ENGINE_BAD_HEALTH_EXPIRATION_SECS
>
> --Jirka
>
> On 04/16/2014 04:43 AM, Andrew Lau wrote:
> > Not that I know of.. someone else may now. Sorry
> >
> > On Wed, Apr 16, 2014 at 10:18 AM, Maurice James <mjames(a)media-node.com>
> > wrote:
> >> Is there any way to change that 10 minute delay?
> >>
> >> ----- Original Message -----
> >> From: "Andrew Lau" <andrew(a)andrewklau.com>
> >> To: "Maurice James" <mjames(a)media-node.com>
> >> Cc: "users" <users(a)ovirt.org>
> >> Sent: Tuesday, April 15, 2014 7:24:40 PM
> >> Subject: Re: [ovirt-users] Hosted engine
> >>
> >> Technically yes, I believe there's a 10 minute or so delay before
> >> it'll come up on the other host.
>> Pretty sure iscsi is not available for now, only NFS.
> >>
> >> On Wed, Apr 16, 2014 at 4:08 AM, Maurice James
<mjames(a)media-node.com>
> >> wrote:
> >>>
> >>> Scenario
> >>> I have a hosted engine setup with 2 nodes with shared iscsi storage.
> >>>
> >>> Question:
> >>> If I yanked the plug on the host that the hosted engine vm is running
on,
> >>> will it come back up on the remaining host without any intervention?
> >>>
> >>> _______________________________________________
> >>> Users mailing list
> >>> Users(a)ovirt.org
> >>> http://lists.ovirt.org/mailman/listinfo/users
> >>>
> > _______________________________________________
> > Users mailing list
> > Users(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
> _______________________________________________
> Users mailing list
> Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>
3684
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6 comments
5 participants
participants (5)
-
Andrew Lau -
Jiri Moskovcak -
Martin Sivak -
Maurice James -
Sandro Bonazzola