Overview 一个cassandra 集群是由一些commodity server组成的ring-like的去中心化网络。一个client连接cluster是通过连接这个...
发简信
IP属地：华盛顿州
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使用对象 - javscript
Reference: https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Guide/Working_with_O...
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HTTP request method 面试题
GET It requests a resource at the request URL. It should not contain a request body as ...
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garbage collection in Java
Garbage Collector is to free heap memory by destroying unreachable objects. Unreachable...
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LC-600 Non-negative Integers without Consecutive Ones
Given a positive integer n, find the number of non-negative integers less than or equal...
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heap source code python
heapq source code https://hg.python.org/cpython/file/3.4/Lib/heapq.pyhttps://hg.python....
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SQL and NoSQL
SQL数据库被称为关系型数据库（RDBMS），而NoSQL数据库被称为非关系型数据库或分布式数据库。 储存方式 tabledocument， key-value 数据关系需要...
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ETL Process1. Extracting Extracting the data from different sources – the data sources can be file...
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map, reduce, filter -python
map() map returns an iterator.map takes a function and applied the function to every it...
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largest devisible subset
http://lintcode.com/en/problem/largest-divisible-subset/https://leetcode.com/problems/l...
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browser storage
问题 浏览器如何存储信息？ 使用cookie 和 localstorage 那个是永久存储？ 都可以永久储存，但是cookies可以set expire date 最大的不同...
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API design
未完。。 讲清楚如何用以下的概念建立一个完整的网站最重要。databases, app servers, web servers, HTTP database：well st...
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Database 面试题Database mySQL： 设计场景 Foreign key: A FOREIGN KEY is a key used to link two tables togeth...
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Map Reduce Architechtureinput, split map shuffle Reduce Finalize References：http://hokein.me/2013/10/17/map-red...
