标签:dfs bsp register new secure bin pass rac sage
1:下载地址 http://mirrors.hust.edu.cn/apache/sqoop/1.4.6/
2:上传压缩包
scp sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz root@hadoop2:/opt/software
3:解压并重命名
tar -zxvf sqoop-1.4.6.bin__hadoop-2.0.4-alpha.tar.gz -C /opt/module
mv sqoop-1.4.6.bin__hadoop-2.0.4-alpha/ sqoop
4:修改配置文件
进入目录 sqoop/conf
mv sqoop-env-template.sh sqoop-env.sh
#Set path to where bin/hadoop is available export HADOOP_COMMON_HOME=/opt/module/hadoop-2.10.1 #Set path to where hadoop-*-core.jar is available export HADOOP_MAPRED_HOME=/opt/module/hadoop-2.10.1 #set the path to where bin/hbase is available #export HBASE_HOME=/opt/module/hbase-2.3.3 #Set the path to where bin/hive is available export HIVE_HOME=/opt/module/hive1.2.1
#Set the path for where zookeper config dir is export ZOOKEEPER_HOME=/opt/module/zookeeper3.5.8 export ZOOCFGDIR=/opt/module/zookeeper3.5.8/conf
6:验证sqoop是否配置正确
进入bin目录下执行 ./sqoop help
出现如下页面则配置成功 出现的警告是因为没有配置hbase、hcatlog等
Warning: /opt/module/sqoop/bin/../../hbase does not exist! HBase imports will fail. Please set $HBASE_HOME to the root of your HBase installation. Warning: /opt/module/sqoop/bin/../../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /opt/module/sqoop/bin/../../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. 21/04/19 11:25:46 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6 usage: sqoop COMMAND [ARGS] 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 See ‘sqoop help COMMAND‘ for information on a specific command.
7:测试sqoop是否能够连上mysql
./sqoop list-databases --connect jdbc:mysql://hadoop2:3306 --username root --password root
能够看到databases说明连接成功
Warning: /opt/module/sqoop/bin/../../hbase does not exist! HBase imports will fail. Please set $HBASE_HOME to the root of your HBase installation. Warning: /opt/module/sqoop/bin/../../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /opt/module/sqoop/bin/../../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. 21/04/19 12:02:23 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6 21/04/19 12:02:24 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 21/04/19 12:02:24 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. Loading class `com.mysql.jdbc.Driver‘. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver‘. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary. mysql information_schema performance_schema sys gmall
到此 sqoop的部署完成
8:导入测试
target-dir 上传hadoop位置
num-mappers 启动mapper的个数,不设置时默认为4个
fields-terminated-by 分隔符
split-by 一那个字段分区,如果mapper为1是否设置效果都相同
./sqoop import --connect jdbc:mysql://hadoop2:3306/gmall \ --username root --password root --table user_info \ --columns id,login_name --where ‘id >= 10 and id <= 30‘ --target-dir /test --delete-target-dir --num-mappers 1 --fields-terminated-by ‘\t‘ --split-by id
--query 后面可以直接写sql
标签:dfs bsp register new secure bin pass rac sage
原文地址:https://www.cnblogs.com/buaaczw/p/14678013.html