vertical vs horizontal

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What a Data System PromisesData Systems

More terms from this board

• accidental complexitycomplexity from the tools, not the problem
• data-intensivebottleneck is data (amount/complexity/change), not CPU
• failurewhole system stops
• fan-outreaching many targets from one op
• faultone part wrong
• fault-toleranta fault never becomes a failure
• load parameterthe number that describes load (e.g. fan-out)
• operability / simplicity / evolvabilitythe three faces of maintainability
• percentile pNN% of requests are faster
• response timewhat the client sees (service time + queueing + network)
• shared-nothingnodes share no memory/disk
• tail latencythe slow high-percentile requests