ubject: Re: KVM HostHA
Hi Jon,
I have to admit that I have a beginner/mediocre understanding of cloudstack
overall (especially the host HA feature). But what works for me should work
for everyone. So, to answer your questions:
1) how many compute nodes do you have
>
I have tested using thr
-enabled VM has
stopped executing and it restarts the HA-enabled VM on another host.
Hope this helps.
Regards,
Parth Patel.
>
>
>
> From: Parth Patel <parthpatel2...@gmail.com>
> Sent: 14 March 2018 14:36
> To: users@cloudstack.apac
not managed to get any failover of VMs no matter what I try
Jon
From: Parth Patel <parthpatel2...@gmail.com>
Sent: 14 March 2018 14:36
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
Hi Paul and Adrina,
I don't know the functioning of Host-HA fe
(4.8) -
> >> libvirt
> >>> get stuck (librbd exception or similar) so agent get's disconnected,
> but
> >>> VMs are still running fine... (except DB get messed up, all NICs loose
> >>> isolation_uri, VR's loose MAC addresses and other IP addresse
ception or similar) so agent get's disconnected, but
>>> VMs are still running fine... (except DB get messed up, all NICs loose
>>> isolation_uri, VR's loose MAC addresses and other IP addresses etc...)
>>>
>>>
>>> Thanks
>>> Andrija
>>>
>>>
&g
;
> >
> > Thanks
> > Andrija
> >
> >
> >
> >
> > On 14 March 2018 at 10:57, Jon Marshall <jms@hotmail.co.uk> wrote:
> >
> >> That would make sense.
> >>
> >>
> >> I have another server being used for something else at the moment so I
> >&g
update this thread when I have tested
>>
>>
>> Jon
>>
>>
>>
>> From: Paul Angus <paul.an...@shapeblue.com>
>> Sent: 14 March 2018 09:16
>> To: users@cloudstack.apache.org
>> Subject: RE: KVM HostHA
>>
Clouds. CSForge is a
> framework developed by ShapeBlue to deliver the rapid deployment of a
> standardised ...
>
>
>
> 53 Chandos Place, Covent Garden, London WC2N 4HSUK
> @shapeblue
>
>
>
>
> -Original Message-
> From: Jon Marshall <jms...
he.org
Subject: RE: KVM HostHA
I'd need to do some testing, but I suspect that your problem is that you only
have two hosts. At the point that one host is deemed out of service, you only
have one host left. With only one host, CloudStack will show the cluster as
ineligible.
It is extremely
.uk>
Sent: 14 March 2018 08:36
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
Hi Paul
My testing does indeed end up with the failed host in maintenance mode but the
VMs are never migrated. As I posted earlier the management server seems to be
saying there is no other host that the
just can't get this to work at the
moment. If I do eventually get it working I will do a write up for others with
same issue :)
From: Paul Angus <paul.an...@shapeblue.com>
Sent: 14 March 2018 07:45
To: users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi
:)
From: Paul Angus <paul.an...@shapeblue.com>
Sent: 14 March 2018 07:45
To: users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi Parth,
Two answer your questions, VM-HA does not restart VMs on an alternate host if
the original host goes down. The management server (without h
.
paul.an...@shapeblue.com
www.shapeblue.com
53 Chandos Place, Covent Garden, London WC2N 4HSUK
@shapeblue
-Original Message-
From: Parth Patel <parthpatel2...@gmail.com>
Sent: 14 March 2018 05:05
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
Hi Paul,
c: Jon Marshall <jms@hotmail.co.uk>
Subject: Re: KVM HostHA
Hi Jon and Victor,
I think the management server pings your host using ipmi (I really don't hope
this is the case).
In my case, I did not have OOBM enabled at all (my hardware didn't support
it)
I think you could disable OOBM an
compute nodes using ipmitool and if it did not get a response because the
> host was down it would fence off that host and move the VMs to an active
> compute node.
> >
> > This is obviously too simplistic so could someone explain how it is
> meant to work and what it is protecting
___
From: Paul Angus <paul.an...@shapeblue.com>
Sent: 13 March 2018 07:01
To: users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi all,
One small note, unplugging the management NIC will only cause an HA event if
the storage is running over that NIC al
Sent: 13 March 2018 07:01
To: users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi all,
One small note, unplugging the management NIC will only cause an HA event if
the storage is running over that NIC also.
Is the storage is over a separate NIC then, the guest VMs will continue to r
t;paul.an...@shapeblue.com>
Sent: 13 March 2018 07:01
To: users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi all,
One small note, unplugging the management NIC will only cause an HA event if
the storage is running over that NIC also.
Is the storage is over a separate NIC then, the guest V
el2...@gmail.com>
Sent: 12 March 2018 17:35
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
>
> Hi Jon,
>
> As I said, in my case, making the host HA didn't work but by just
> having a HA VM running on host and executing - (WARNING) "echo c >
> /proc/sys
rk
> it as down (which it does).
>
>
> I am in testing mode so I think I will just go and pull the power and see
> what happens :)
>
>
> Thanks
>
>
> Jon
>
>
> ____________
> From: Paul Angus <paul.an...@shapeblue.com
Sent: 12 March 2018 15:53
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
Hi Paul
Thanks for the response.
I think I am not understanding how it was meant to work then. My understanding
was that the manager used ipmitool to just keep querying the compute nodes as
to their status so
users@cloudstack.apache.org
Subject: RE: KVM HostHA
Hi Jon,
I think that what you guys are finding, is that a controlled host shutdown,
which will cause the agent to shutdown cleanly; Is not considered an HA event.
I wouldn't expect CloudStack to take any action if you shut down a host, only
if the host
regards,
Paul Angus
paul.an...@shapeblue.com
www.shapeblue.com
53 Chandos Place, Covent Garden, London WC2N 4HSUK
@shapeblue
-Original Message-
From: Jon Marshall <jms@hotmail.co.uk>
Sent: 12 March 2018 15:15
To: users@cloudstack.apache.org
Subject: Re: KVM HostHA
I have the same issue here and am not entirely sure what the behaviour should
be.
I have one manager node and 2 compute nodes running 4.11 with ipmi working
correctly.
>From the UI under HA -
HA Enabled Yes
HA State Available
HA Provider kvmhaprovider
although
Hi Victor,
I too had a similar failover requirement. I also got on the path of making
an HA-enabled KVM host in CS 4.9 after doing the same steps you performed
but in CS 4.9 where the agent got in "Alert" state but not in "Down" state.
However, if your requirement is simply that in case a host
vic...@ihnetworks.com>
Sent: 08 March 2018 08:36
To: users@cloudstack.apache.org; Andrija Panic <andrija.pa...@gmail.com>
Subject: Re: KVM HostHA
Hello Andrija,
Yes I am doing the same test as you mentioned ie unplug NIC in one of the host
and observer the action of VM's in that host. Bu
Hell Paul,
I am using the default values set by cloudstack and didn't changed those
default values.
Regards
Victor
On 03/07/2018 11:37 PM, Paul Angus wrote:
Hi Victor,
What parameters do you have for:
kvm.ha.activity.check.max.attempts
kvm.ha.activity.check.interval
Hello Andrija,
Yes I am doing the same test as you mentioned ie unplug NIC in one of
the host and observer the action of VM's in that host. But in my test
the VM's didn't get started in another host.
Regards
Victor
On 03/07/2018 11:52 PM, Andrija Panic wrote:
Hi Victor,
zero experience
Hi Victor,
zero experience here with 4.11 in general, but what are you expecting to
happen ?
you powered off a host, so nothing for IPMI driver to do - host is down
already, no host HA actions are expected afaik.
I guess you might have have wanted to i.e. unplug NIC (cause network issues
on
Hi Victor,
What parameters do you have for:
kvm.ha.activity.check.max.attempts
kvm.ha.activity.check.interval
kvm.ha.activity.check.timeout
kvm.ha.health.check.timeout
kvm.ha.degraded.max.period
the logs should show entries relating to these, BUT it's possible that as
you performed a clean
30 matches
Mail list logo
