（十一）安装sqoop

下载并解压

1）下载地址：http://mirrors.hust.edu.cn/apache/sqoop/1.4.6/
2）上传安装包sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz到hadoop102的/opt/software路径中
3）解压sqoop安装包到指定目录，如：
tar -zxf sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz -C /opt/module/
4）解压sqoop安装包到指定目录，如：
mv sqoop-1.4.6.bin__hadoop-2.0.4-alpha/ sqoop
5）递归修改目录所属用户
chown shsxt:shsxt sqoop/ -R

修改配置文件

1. 进入到/opt/module/sqoop/conf目录，重命名配置文件
   mv sqoop-env-template.sh sqoop-env.sh
2. 修改配置文件
   vim sqoop-env.sh
   增加如下内容：
   export HADOOP_COMMON_HOME=/opt/module/hadoop-2.7.2
   export HADOOP_MAPRED_HOME=/opt/module/hadoop-2.7.2
   export HIVE_HOME=/opt/module/hive
   export ZOOKEEPER_HOME=/opt/module/zookeeper-3.4.10
   export ZOOCFGDIR=/opt/module/zookeeper-3.4.10/conf
   export HBASE_HOME=/opt/module/hbase

拷贝JDBC驱动，让sqoop连接上mysql

1）进入到/opt/software/mysql-libs路径，解压mysql-connector-java-5.1.27.tar.gz到当前路径
tar -zxvf mysql-connector-java-5.1.27.tar.gz
2）进入到/opt/software/mysql-libs/mysql-connector-java-5.1.27路径，拷贝jdbc驱动到sqoop的lib目录下。
cp mysql-connector-java-5.1.27-bin.jar /opt/module/sqoop/lib/

验证Sqoop

我们可以通过某一个command来验证sqoop配置是否正确：
bin/sqoop help
出现一些Warning警告（警告信息已省略），并伴随着帮助命令的输出：
Available commands:
codegen Generate code to interact with database records
create-hive-table Import a table definition into Hive
eval Evaluate a SQL statement and display the results
export Export an HDFS directory to a database table
help List available commands
import Import a table from a database to HDFS
import-all-tables Import tables from a database to HDFS
import-mainframe Import datasets from a mainframe server to HDFS
job Work with saved jobs
list-databases List available databases on a server
list-tables List available tables in a database
merge Merge results of incremental imports
metastore Run a standalone Sqoop metastore
version Display version information

测试Sqoop是否能够成功连接数据库

bin/sqoop list-databases --connect jdbc:mysql://hadoop102:3306/ --username root --password xxxx
出现如下输出表示成功：
information_schema
mysql
performance_schema
test