m0_46560176的博客

第1关：Sqoop数据导入语法学习start-all.sh schematool -dbType mysql -initSchema 第2关：Mysql导入数据至HDFS上mysql -uroot -p123123 -h127.0.0.1 create database hdfsdb;use hdfsdb;create table student(stu_no int primary key, stu_name varchar(20), stu_age int);insert

第1关：Sqoop数据导出语法学习start-all.sh schematool -dbType mysql -initSchema 第2关：HDFS数据导出至Mysql内mysql -uroot -p123123 -h127.0.0.1 create database hdfsdb;use hdfsdb;create table fruit(fru_no int primary key,fru_name varchar(20),fru_price int,fru_address v

第1关：会话创建与关闭合集import java.io.IOException;import org.apache.zookeeper.WatchedEvent;import org.apache.zookeeper.Watcher;import org.apache.zookeeper.ZooKeeper;public class test1 { // 初始化 ZooKeeper 实例 private ZooKeeper zk; // 实现一个 Watcher.