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From "Paul Angus (JIRA)" <>
Subject [jira] [Commented] (CLOUDSTACK-3535) No HA actions are performed when a KVM host goes offline
Date Wed, 17 Jul 2013 07:44:48 GMT


Paul Angus commented on CLOUDSTACK-3535:

@Logan - I think your solution works most of the time as long as there is resilience/redundancy
in the management network to the hosts.  so I can see two potential problems - one physical
- if there is only one link into the host for management and it is lost then it would fail
all tests but the VMs would still be up. - and one in the OS - if the cloudbr for management
went down the same would happen.

The first would be avoided by good design. I'm not sure how likely the second is anyway.
> No HA actions are performed when a KVM host goes offline
> --------------------------------------------------------
>                 Key: CLOUDSTACK-3535
>                 URL:
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Hypervisor Controller, KVM, Management Server
>    Affects Versions: 4.1.0, Future
>         Environment: KVM (CentOS 6.3) with CloudStack 4.1
>            Reporter: Paul Angus
> If a KVM host 'goes down', CloudStack does not perform HA for instances which are marked
as HA enabled on that host (including system VMs)
> CloudStack does not show the host as disconnected.

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