VM Migration Woes on Virtualization

https://www.cockroachlabs.com/docs/stable/operational-faqs.html#what-happens-when-node-clocks-are-not-properly-synchronized

The one rare case to note is when a node's clock suddenly jumps beyond the maximum offset before the node detects it. Although extremely unlikely, this could occur, for example, when running CockroachDB inside a VM and the VM hypervisor decides to migrate the VM to different hardware with a different time.

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