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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-9397) Add Watchdog timer to KVM Instances
Date Thu, 03 Nov 2016 04:46:58 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-9397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15631566#comment-15631566
] 

ASF GitHub Bot commented on CLOUDSTACK-9397:
--------------------------------------------

Github user rhtyd commented on the issue:

    https://github.com/apache/cloudstack/pull/1707
  
    @blueorangutan package



> 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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