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Posted to issues@cloudstack.apache.org by "Wido den Hollander (JIRA)" <ji...@apache.org> on 2017/12/19 16:07:00 UTC
[jira] [Closed] (CLOUDSTACK-9397) Add Watchdog timer to KVM
Instances
[ https://issues.apache.org/jira/browse/CLOUDSTACK-9397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wido den Hollander closed CLOUDSTACK-9397.
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Resolution: Fixed
This has been merged into master
> Add Watchdog timer to KVM Instances
> -----------------------------------
>
> Key: CLOUDSTACK-9397
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9397
> Project: CloudStack
> Issue Type: New Feature
> Security Level: Public(Anyone can view this level - this is the default.)
> Components: KVM
> Reporter: Wido den Hollander
> Assignee: Wido den Hollander
> Labels: kvm, libvirt, watchdog
>
> A Watchdog timer can be used by the hypervisor to verify if an Instance is still alive. If not, for example due to a kernel panic the HV can reset the Instance so that it boots again.
> Inside the Instance the 'watchdog' daemon has to run to provide this. If the Watchdog is not running the HV can't verify if the Instance has crashed.
> This is supported by Libvirt and Qemu and can be configured in the XML: https://libvirt.org/formatdomain.html#elementsWatchdog
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