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Multiple ChoiceIntermediate 45s

Clock skew and Snowflake

What happens to a Snowflake ID generator if the system clock moves backwards?
Options
  1. 1It may generate duplicate or out-of-order IDs, so implementations typically wait or fail fast until the clock catches up
  2. 2Nothing at all happens and the IDs stay monotonic because the timestamp bits are always strictly increasing
  3. 3It automatically switches to UUIDv4 for a while so that uniqueness no longer depends on the wall clock
  4. 4The worker id is reassigned by the coordinator so that the node can keep generating identifiers safely

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