The Tail at Scale

  • 文章重点列了七种工程上的解决方案
    • hedged requests(最快请求),
    • tied requests(最快请求完成后取消其他请求),
    • micro-partition(微分区),
    • selectively increase replication factors(增加读分区),
    • put slow machines on probation(隔离慢速机器),
    • ‘good enough’ responses(不完美但是足够好的结果),
    • canary requests(试探性请求)

参考

The Tail at Scale_ Achieving Rapid Response Times in Larg ***

[CACM2013] The Tail at Scale