该paper是2003年Google发表在SOSP（Symposium on Operating Systems Principles-计算机系统畛域的顶会）的论文《The Google File System》集体翻译。作为Hadoop时代的三架马车之一，对以后分布式系统诸多问题的解决方案具备很重要的意义。

IID（如使用基准数据集的图像识别），要么被人工处理为 IID，如为给定的应用问题精心收集合适的训练数据集，或者使用类似 DeepMind「经验回放」（experience replay）的方法，即强化学习智能体存储观测结果稍后再打乱以便后续训练。互信息：二者对我的影响是同等程度的例如使拥有笔记本电脑的顾客想要购买电脑包。推荐待…

1.querys信息汇总(action,affected rows,avg.frequency,avg.latency,bytesin,bytesout,count,cputime,errors,failedrate)2.趋势 环比3.faults requests continue to arrive but do not get serviced by the system(mysqld,disk) {why?so you can prevent it from escalating into an outage?are some of my database pro…

功能：performance prediction, performance diagno- sis, bottleneck explanation, workload insight, optimal admission control, and what-if analysis指标：AggregatedOSstatisticsWorkloadstatisticsfromtheDBMS,includingthenumberof SELECT, UPDATE, DELETE and INSERT commands executed, number of flushed and…

RCA的工具一般可以query and classify anomalies，相关性分析（causal probabilistic gaphical models）