在下载与安装Sqoop工具之前,请先确保您正确配置了Java、Hadoop环境。
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到虚拟机中
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/
Sqoop的配置文件与大多数大数据框架类似,在sqoop根目录下的conf目录中。
1) 重命名配置文件
$ mv sqoop-env-template.sh sqoop-env.sh
2) 修改配置文件
sqoop-env.sh 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 export HBASE_HOME=/opt/module/hbase
将JDBC的驱动复制到Sqoop的lib目录下,如:
$ cp mysql-connector-java-5.1.27-bin.jar /opt/module/sqoop-1.4.6.bin__hadoop-2.0.4-alpha/lib/
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
$ bin/sqoop list-databases –connect jdbc:mysql://hadoop102:3306/ –username root –password 000000
出现如下输出:
information_schema metastore mysql oozie performance_schema