Uploaded image for project: 'CloudStack'
  1. CloudStack
  2. CLOUDSTACK-9397

Add Watchdog timer to KVM Instances

    XMLWordPrintableJSON

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: KVM
    • Security Level: Public (Anyone can view this level - this is the default.)
    • Labels:

      Description

      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

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                widodh Wido den Hollander
                Reporter:
                widodh Wido den Hollander
              • Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: