大数据小白之路

启动hive报错[hadoop@master2 conf]$ hive which: no hbase in (/home/hadoop/app/hive-2.1.1/bin:/home/hadoop/app/sqoop/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/hadoop/app/java/jdk1.8.0_101/bin:/home/hadoop/app/hadoop-2.7.2/bin:/home/hadoop/app/hadoop-2.7.2/sbin:/home/hadoop/.local/...

1 添加数据sqoop import --connect jdbc:mysql://localhost:3306/sqooptest --table sqoop_class --username root --password hadoop --check-column class_id --incremental append --last-value 6 -m 1sqooptest 为数据库名字sqoop_class 为表名username 为数据库用户名password 为数据库密码chec...

CENTOS7默认数据库是mariadb，我们要先下载mysql的repo源1.下载mysql的repo源$ wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm2.安装mysql-community-release-el7-5.noarch.rpm包$ sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm安装这个包3.安装mysql$ sudo yum install mysql-server...

主机名为：master2core-site.xml<property> <name>fs.default.name</name> <value>hdfs://master2:9000</value> </property> <property> <name>hadoop.tmp.dir</name> <value>/opt/hadoop-2.7.2/current/tmp</value> </pr...