whybangbang
whybangbang
chrome extension reuqest 
if you use client.NewRequest for every request, i think it's thread safe, it always copy middleware,ctx from client and new http request and response for every request
不太明白你这个分级是什么意思,bloom 你可以采用的办法就是提取相同的部分做过滤 例如 article.com/item/1 article.com/item/2 article.com/item/3...你直接存一个article.com/item/就行,每次来一个设置对应host的摘取规则取出article.com/item/ 去bloom 判断就行
if your work is elk,kibana is better, if your search application build on es, maybe easy-es will help you