BFT

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When Machines FailData Systems

More terms from this board

• Byzantine faulta node that lies/acts arbitrarily
• clock skew/driftclocks disagree/wander
• fencing tokena rising number the resource checks to reject stale holders
• leasea time-limited lock
• logical clockorder by causality not time (Lamport/version vector)
• partial failuresome parts broken, others fine
• process pausea thread frozen mid-run (GC, VM, paging)
• safety vs livenessnothing-bad-ever vs something-good-eventually
• system modeltiming + failure assumptions
• time-of-day vs monotonic clockwall time (can jump) vs forward-only elapsed
• timeoutthe only failure detector
• TrueTimeclock as an interval
• unbounded delayno ceiling on network latency