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public class MovieClass { public class MovieMapper extends Mapper<LongWritable, Text, LongWritable, DoubleWritable> { @Override protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, LongWritable, DoubleWritable>.Cont

create database hive; use hive; create table loan( LoanStatus STRING, BorrowerRate FLOAT, ProsperScore FLOAT, Occupation STRING, EmploymentStatus STRING, IsBorrowerHomeowner BOOLEAN, CreditScorerangeLower INT, CreditScorer

1.安装ntp rpm -qa|grep ntp yum install ntp -y 2.删除mariadb rpm -aq | grep mariadb rpm -e --nodeps mariadb-libs- 版本 3.安装mysql rpm -ivh mysql-community-common ... libs ... libs-compat ... client ... server 4.修改主机名 hostnamectl set-hostname xxx bash 5.关闭防

下载安装 打开网站找到版本https://mirrors.tuna.tsinghua.edu.cn/apache/kafka，然后下载 wget http://mirrors.tuna.tsinghua.edu.cn/apache/kafka/2.7.0/kafka_2.13-2.7.0.tgz tar -zxvf kafka_2.13-2.7.0.tgz cd kafka_2.13-2.7.0/ 修改配置文件 cd config vi server.properties 修改参数 log.dir.