Dynamic machine ID leases in Elixir
Distributed ID generators often look simple: combine a timestamp, a counter, and a machine ID. NoNoncense uses that idea for fast counter, sortable, and encrypted nonces. It is a wonderfully fast design, right up until two running nodes receive the same machine ID. The hard part is not incrementing a counter. It is deciding who may use each machine ID, especially when pods are replaced, nodes…
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