2017年5月4日
Output Operations on DStreams
摘要： Output OperationMeaning print() Prints the first ten elements of every batch of data in a DStream on the driver node running the streaming application 阅读全文
posted @ 2017-05-04 23:04 静若清池 阅读(118) 评论(0) 推荐(0)
Window Operations on DStreams
摘要： A more efficient version of the above reduceByKeyAndWindow() where the reduce value of each window is calculated incrementally using the reduce values 阅读全文
posted @ 2017-05-04 23:01 静若清池 阅读(103) 评论(0) 推荐(0)
Transformations on DStreams
摘要： TransformationMeaning map(func) Return a new DStream by passing each element of the source DStream through a function func. flatMap(func) Similar to m 阅读全文
posted @ 2017-05-04 22:42 静若清池 阅读(170) 评论(0) 推荐(0)
CentOS下安装Telnet
摘要： 1. 安装 [root@master ~]# yum list |grep telnet telnet-server.x86_64 1:0.17-59.el7 @base telnet.x86_64 1:0.17-59.el7 base [root@master ~]# yum install te 阅读全文
posted @ 2017-05-04 09:55 静若清池 阅读(256) 评论(0) 推荐(0)