somejfn commented on issue #2984: kvm: reset KVM host on heartbeat failure URL: https://github.com/apache/cloudstack/pull/2984#issuecomment-434282987 @wido Allow me to disagree. If a transient NFS issue happens and result in mass reset of KVM hosts after 5 minutes, this creates way more damage/outages than waiting for the NFS server to come back and VM just resume IO to disk. Last time we saw this it was a failed switch update that caused a network partition for 22 minutes. On 4.9.3 we were lucky to survive the event while on 4.11 Im afraid I'd have to explain why 2000 VMs got rebooted.
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