Nux created CLOUDSTACK-8943:
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Summary: KVM HA is broken, let's fix it
Key: CLOUDSTACK-8943
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8943
Project: CloudStack
Issue Type: Bug
Security Level: Public (Anyone can view this level - this is the default.)
Environment: Linux distros with KVM/libvirt
Reporter: Nux
Currently KVM HA works by monitoring an NFS based heartbeat file and it can
often fail whenever this network share becomes slower, causing the hypervisors
to reboot.
This can be particularly annoying when you have different kinds of primary
storages in place which are working fine (people running CEPH etc).
Having to wait for the affected HV which triggered this to come back and
declare it's not running VMs is a bad idea; this HV could require hours or days
of maintenance!
This is embarrassing. How can we fix it? Ideas, suggestions? How are other
hypervisors doing it?
Let's discuss, test, implement. :)
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