In this #Jepsen analysis, we explore three safety bugs in @YugaByte DB: a distributed, multi-model database which combines sharded instances of Raft with leader leases, hybrid logical clocks, and a custom 2PC cross-shard transactional protocol. https://jepsen.io/analyses/yugabyte-db-1.1.9 …
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Adding a few relevant points about the clock skew here. Firstly, YugaByte DB achieves single key linearizability by using monotonic clock (and not wall clocks), so that use-case does not face this issue.
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Secondly, the probability of such an event is quite low in public clouds where NTP systems are configured reasonably well and there is not much variance across instances.
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