System Design 101 Explain complex systems using visuals and simple terms. Whether you're preparing for a System Design Interview or you simply want to understand how systems work beneath the surface, we hope this repository will help you achieve that. ...
分析工具之二pt-query-digest pt-query-digest是用于分析mysql慢查询的一个工具,它可以分析binlog、General log、slowlog,也可以通过SHOWPROCESSLIST或者通过tcpdump抓取的MySQL协议数据来进行分析。可以把分析结果输出到文件中,分析过程是先对查询语句的条件进行参数化,然后对参数化以后的查询进行分组统计,统计出各查询的...
Explain why we need three segments for connection termination in TCP? Each of the following functions f is defined as f : R -> R. Prove why each function is one to one or not one to one: a) f(x) = (x + 1)/(x - 1) , for all real n...
Differential expression analyses between groups (with three biological replicates per group) were performed using the DESeq2 R package (1.16.1)43. Genes with a correctedP-value< 0.05 as identified by DESeq2 were considered differentially expressed genes (DEGs). We defined those genes expressed (F...
Different communication protocols, e.g., ISO/OSI, IPX, TCP/IP, may be used on the network, but in the case of the Internet, a single, layered communications protocol (TCP/IP) generally enables communications between the differing networks 14 and stations 12. Thus, a communication link may ...