Introduction Spark provides a unified runtime for big data. HDFS, which is Hadoop's filesystem, is the most used storage platform for Spark as it provides const-effefctive storage for unstructured and semi-structured data on commodity hardware. Spark…
通过Spark SQL External Data Sources JDBC实现将RDD的数据写入到MySQL数据库中. jdbc.scala重要API介绍: /** * Save this RDD to a JDBC database at `url` under the table name `table`. * This will run a `CREATE TABLE` and a bunch of `INSERT INTO` statements. * If you pass `tru…
在spark1.2版本中最令我期待的功能是External Data Sources,通过该API可以直接将External Data Sources注册成一个临时表,该表可以和已经存在的表等通过sql进行查询操作.External Data Sources API代码存放于org.apache.spark.sql包中. 具体的分析可参见OopsOutOfMemory的两篇精彩博文: http://blog.csdn.net/oopsoom/article/details/42061077 ht…
from:http://blogs.msdn.com/b/ericwhite/archive/2010/04/28/searching-external-data-in-sharepoint-2010-using-business-connectivity-services.aspx Business Connectivity Services (BCS) are a set of services and features that provide a way to connect Share…
场景:使用Spark Streaming接收Kafka发送过来的数据与关系型数据库中的表进行相关的查询操作: Kafka发送过来的数据格式为:id.name.cityId,分隔符为tab zhangsan lisi wangwu zhaoliu MySQL的表city结构为:id int, name varchar bj sz sh 本案例的结果为:select s.id, s.name, s.cityId, c.name from student s join city c on s.city…
Learning Spark: Lightning-Fast Big Data Analysis 中文翻译行为纯属个人对于Spark的兴趣,仅供学习. 如果我的翻译行为侵犯您的版权,请您告知,我将停止对此书的开源翻译. Translation the book of Learning Spark: Lightning-Fast Big Data Analysis is only for spark developer educational purposes. If I violated you…