Coursera, Big Data 3, Integration and Processing (week 1/2/3)

This is the 3rd course in big data specification courses.

 

Data model reivew 

  1, data model 的特点: Structured, operations on it, constrains.

  2. different types of data model

 

 

 

Retrieving data (week 1/2)

 

Querying data from ralational DB.

  

 

query data from mongodb

  

 

  

 

  

 

  

 

   

 

  

 

  

  

   

 

  

 

  

输出如下,注意第3条记录  

 

 

Big data integration (week3)

infomation integration 就是从多个infomation source 取数据来完成一个task

  

 

big data 主要的问题是 many sources, 两个solution 是pay-as-you-go, probabilistic schema mapping.

probabilitistic schema mapping 感觉是一种自动计算出 integration schema 的方法.

   

 

  

 

  

 

 

  

 

  

 

  

 

  

 

 

Industry examples for big data integration and processing

using Splunk and Datameer(used in digital music industry)

Splunk 能做什么?和 ES 什么区别?

看这边文章介绍 https://blog.51cto.com/splunkchina/1948105

 

Datameer 呢? 

感觉不主流,不看了

 

posted @ 2018-12-23 17:21  mashuai_191  阅读(212)  评论(0编辑  收藏  举报