Hi Community,
I am testing High Availability (HA) for Cloudstack VMs using KVM and NFS.
To simulate a host failure, I am triggering a kernel panic. When the
command is executed, the host status remains "up" for 3-4 minutes before
transitioning to an "Alert '' state and not marked as "Down ". As a
Yu Huang,
I guess nobody has done this (as you are not getting any responses)
Did you do further experiments ? how did you fare?
On Thu, Nov 23, 2023 at 7:50 AM Yu Huang Chan wrote:
>
> Hi All,
>
> According to the CloudStock documentation, HA for hosts and HA-enabled KVM
> VMs only work with pri
Hi All,
According to the CloudStock documentation, HA for hosts and HA-enabled KVM
VMs only work with primary storage and must have iSCSI or NFS storage.
In our current setup, the primary storage is Linstor raw block storage.
To enable HA for hosts and HA-enabled KVM VM features, is it possible th
will start vms
> on another host if a host will be unavailable. But I am not 100% sure about
> this.
>
> Regards,
> Swen
>
> -Ursprüngliche Nachricht-
> Von: Bryan Tiang
> Gesendet: Mittwoch, 11. Oktober 2023 15:48
> An: users@cloudstack.apache.org
>
@cloudstack.apache.org
Cc: Bryan Tiang
Subject: Re: AW: Cloudstack VM HA
What I learned in practice is that enabling Host HA affects VM HA.. in
that VM HA no longer works. :)
So what does Host HA do? It'll reboot the hypervisor via IPMI if it is
deemed unreachable. While the hypervisor is do
e used for host ha in the future. I read something on the ccc
agenda.
Regards,
Swen
-Ursprüngliche Nachricht-
Von: Bryan Tiang
Gesendet: Dienstag, 10. Oktober 2023 12:36
An: users@cloudstack.apache.org
Betreff: Cloudstack VM HA
Hi All,
We are setting up Cloudstack + Linbit SDS (
Hi Nux,
My deployment is using KVM on centos 7 and NFS as primary storage. Even
after enabling HA HA State is showing as "Ineligible" on all 3 KVM hosts.
Did I miss something?
Reg,
Jon
On Tue, 10 Oct, 2023, 19:06 Nux, wrote:
> Hello,
>
> You need a stable NFS primary storage for the hearbeat
Nachricht-
Von: Bryan Tiang
Gesendet: Mittwoch, 11. Oktober 2023 15:48
An: users@cloudstack.apache.org
Betreff: Re: AW: Cloudstack VM HA
Hi Nix and Swen,
Thanks for the input! Just curious, can VM HA and Host HA be enabled at the
same time?
In our case, using Cloudstack + Linstor.
And to
2:36
> An: users@cloudstack.apache.org
> Betreff: Cloudstack VM HA
>
> Hi All,
>
> We are setting up Cloudstack + Linbit SDS (via plugin). Hypervisor is Ubuntu.
>
> We are trying to test the VM HA by powering down a physical node at random.
> However, the VMs doesn’t seem
read something on the ccc agenda.
Regards,
Swen
-Ursprüngliche Nachricht-
Von: Bryan Tiang
Gesendet: Dienstag, 10. Oktober 2023 12:36
An: users@cloudstack.apache.org
Betreff: Cloudstack VM HA
Hi All,
We are setting up Cloudstack + Linbit SDS (via plugin). Hypervisor is Ubuntu.
We are
Hello,
You need a stable NFS primary storage for the hearbeat file.
You can keep it in disabled state after the testing - so VMs do not get
created there - but it needs to be present.
Watch out, if the NFS storage becomes unstable or unreachable via
network (switch fault etc) the hypervisors wi
Hi All,
We are setting up Cloudstack + Linbit SDS (via plugin). Hypervisor is Ubuntu.
We are trying to test the VM HA by powering down a physical node at random.
However, the VMs doesn’t seem to be failing over to the other nodes.
VM HA is enabled already, is there something we are missing?
Re
cool
Subject: Re: Urgent Issue : Cloudstack VM HA not working
Hi ,
I'm working on FC as primary storage ,can that be related to this issue ?
On my log cloudstack is showing that the vm's are restarted after he
ditects the host in down state,but physically the vm's are not started .
Regards,
> > Somesh
> >
> >
> > -Original Message-
> > From: Fedi Ben Ali [mailto:ben.ali.fe...@gmail.com]
> > Sent: Friday, August 14, 2015 5:23 PM
> > To: users@cloudstack.apache.org
> > Cc: prapul cool
> > Subject: Re: Urge
15 5:23 PM
> To: users@cloudstack.apache.org
> Cc: prapul cool
> Subject: Re: Urgent Issue : Cloudstack VM HA not working
>
> hi,
>
> On the xencenter its halted and in the cloudDB its running.
> The vmsync process is not getting any information about the VM.
>
> 20
PM
To: users@cloudstack.apache.org
Cc: prapul cool
Subject: Re: Urgent Issue : Cloudstack VM HA not working
hi,
On the xencenter its halted and in the cloudDB its running.
The vmsync process is not getting any information about the VM.
2015-08-14 18:46 GMT+03:00 Somesh Naidu :
> Fedi,
>
> I am assuming
to:ben.ali.fe...@gmail.com]
> Sent: Friday, August 14, 2015 7:59 AM
> To: users@cloudstack.apache.org
> Cc: prapul cool
> Subject: Re: Urgent Issue : Cloudstack VM HA not working
>
> Hi,
>
> thanks for your replys,
> but all those links are basically discribing how to do
)?
Regards,
Somesh
-Original Message-
From: Fedi Ben Ali [mailto:ben.ali.fe...@gmail.com]
Sent: Friday, August 14, 2015 7:59 AM
To: users@cloudstack.apache.org
Cc: prapul cool
Subject: Re: Urgent Issue : Cloudstack VM HA not working
Hi,
thanks for your replys,
but all those links are basically
Hi,
thanks for your replys,
but all those links are basically discribing how to do the pool-master
failover (i already made those the configuration of xenserver ha ).
but in my case i'm not recovering from a slave faillure ,even when i stop a
vm from xencenter ,cloudstack do not start it as descri
Hi,
This may also be of help:
http://blog.remibergsma.com/2015/05/23/making-xenserver-and-cloudstack-sing-and-dance-together-again/
I’d also consider upgrading to 4.4.4. I just did a 4.4.2 -> 4.4.4 upgrade and
it went without issues. It has many fixes over 4.4.2.
Regards,
Remi
On 14 Aug 2015,
Hi ,From Xenserver6.2 onwards, you need to enabled native HA at pool level for
cloudstack HA to work.please refer the link for more
details.http://www.shapeblue.com/xenserver-native-ha-with-cloudstack/
Regards,
Prapul sriram,
Cloud Architect,
PSI Cloud Solutions,
Psiclouds.com.
On Friday
hello ,
I'm working on cloudstack 4.4.2 and xenserver 6.2 cluster with 5 hosts, i
deployed many virtual machines with compute offerings having ha feature
enabled.
But when i stops one of the pools hosts , happens all VM steel set to
running on cloudstack and no ha is done.
Even when i stop a
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