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
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...