Sqoop安装与应用过程
1. 参考说明
参考文档：
http://sqoop.apache.org/docs/1.99.7/admin/Installation.html
2. 安装环境说明
2.1. 环境说明
CentOS7.4+ Hadoop2.7.5的伪分布式环境
|
主机名 |
NameNode |
SecondaryNameNode |
DataNodes |
|
centoshadoop.smartmap.com |
192.168.1.80 |
192.168.1.80 |
192.168.1.80 |
|
|
|
|
|
Hadoop的安装目录为：/opt/hadoop/hadoop-2.7.5
3. 安装
Sqoop由两部分组成：客户端(client)和服务端(server)。需要在集群的其中某个节点上安装server，该节点的服务端可以作为其他Sqoop客户端的入口点。在服务端的节点上必须安装有Hadoop。客户端可以安装在任意数量的机子上。在装有客户端的机子上不需要安装Hadoop。
3.1. Sqoop下载
3.2. Sqoop解压
将下载的sqoop-1.99.7-bin-hadoop200.tar.gz解压到/opt/hadoop/sqoop-1.99.7目录下
4. 配置
4.1. 修改Hadoop配置
4.1.1. 修改core-site.xml文件
[root@centoshadoop hadoop]# vi /opt/hadoop/hadoop-2.7.5/etc/hadoop/core-site.xml
<property>
<name>hadoop.proxyuser.sqoop2.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.sqoop2.groups</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.root.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.root.groups</name>
<value>*</value>
</property>
4.1.2. 修改container-executor.cfg文件
[root@centoshadoop hadoop]# vi /opt/hadoop/hadoop-2.7.5/etc/hadoop/container-executor.cfg
allowed.system.users=sqoop2,hadoop,root
4.1.3. 修改yarn-site.xml文件
[root@centoshadoop hadoop]# vi /opt/hadoop/hadoop-2.7.5/etc/hadoop/yarn-site.xml
4.2. 创建第三方数据库驱动目录
[root@centoshadoop sqoop-1.99.7]# mkdir /opt/hadoop/sqoop-1.99.7/jdbcDriver
[root@centoshadoop sqoop-1.99.7]# chmod g+rwx,o+rwx /opt/hadoop/sqoop-1.99.7/jdbcDriver
4.3. 上传驱动到存放JDBC驱动的目录下
上传软件包mysql-connector-java-5.1.46.jar到/opt/hadoop/sqoop-1.99.7/jdbcDriver目录下
4.4. 修改profile文件
vi /etc/profile
# export JAVA_HOME=/opt/java/jdk1.7.0_45
export JAVA_HOME=/opt/java/jdk1.8.0_171
# export CLASSPATH=.:$JAVA_HOME/lib
export HADOOP_HOME=/opt/hadoop/hadoop-2.7.5
export HADOOP_INSTALL=$HADOOP_HOME
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export PIG_HOME=/opt/hadoop/pig-0.17.0
export HIVE_HOME=/opt/hadoop/hive-2.3.3
export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
export PATH=$PATH:$PIG_HOME/bin
export PATH=$PATH:$HIVE_HOME/bin
export SQOOP_HOME=/opt/hadoop/sqoop-1.99.7
export PATH=$PATH:$SQOOP_HOME/bin
export CLASSPATH=$CLASSPATH:$SQOOP_HOME/server/lib:$SQOOP_HOME/shell/lib:$SQOOP_HOME/tools/lib
export SQOOP_SERVER_EXTRA_LIB=/opt/hadoop/sqoop-1.99.7/jdbcDriver/
export CLASSPATH=.:$JAVA_HOME/lib:$HIVE_HOME/lib
export LD_LIBRARY_PATH=$JAVA_HOME/jre/lib/amd64/server:/usr/local/lib:$HADOOP_HOME/lib/native
export JAVA_LIBRARY_PATH=$LD_LIBRARY_PATH:$JAVA_LIBRARY_PATH
export HADOOP_USER_NAME=hadoop
4.5. 将JDK升级为1.8版本
将JDK切换成1.8的版本，并修改所有与JAVA_HOME相关的变量
4.6. 修改Sqoop的配置文件
[root@centoshadoop bin]# vi /opt/hadoop/sqoop-1.99.7/conf/sqoop.properties
org.apache.sqoop.submission.engine.mapreduce.configuration.directory=/opt/hadoop/hadoop-2.7.5/etc/hadoop/
[root@centoshadoop bin]# vi /opt/hadoop/sqoop-1.99.7/bin/sqoop.sh
export HADOOP_COMMON_HOME=${HADOOP_HOME}/share/hadoop/common
export HADOOP_HDFS_HOME=${HADOOP_HOME}/share/hadoop/hdfs
export HADOOP_MAPRED_HOME=${HADOOP_HOME}/share/hadoop/mapreduce
export HADOOP_YARN_HOME=${HADOOP_HOME}/share/hadoop/yarn
5. 启动Hadoop
5.1. 启动YARN与HDFS
cd /opt/hadoop/hadoop-2.7.5/sbin
start-all.sh
5.2. 启动historyserver
cd /opt/hadoop/hadoop-2.7.5/sbin
mr-jobhistory-daemon.sh start historyserver
6. 验证Sqoop安装与配置
[root@centoshadoop sqoop-1.99.7]# sqoop2-tool verify
Setting conf dir: /opt/hadoop/sqoop-1.99.7/bin/../conf
Sqoop home directory: /opt/hadoop/sqoop-1.99.7
Sqoop tool executor:
Version: 1.99.7
Revision: 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb
Compiled on Tue Jul 19 16:08:27 PDT 2016 by abefine
Running tool: class org.apache.sqoop.tools.tool.VerifyTool
1 [main] INFO org.apache.sqoop.core.SqoopServer - Initializing Sqoop server.
6 [main] INFO org.apache.sqoop.core.PropertiesConfigurationProvider - Starting config file poller thread
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/hadoop/hadoop-2.7.5/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hadoop/hive-2.3.3/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
Verification was successful.
Tool class org.apache.sqoop.tools.tool.VerifyTool has finished correctly.
7. 初始化Sqoop的Repository
[root@centoshadoop sqoop-1.99.7]# sqoop2-tool upgrade
Setting conf dir: /opt/hadoop/sqoop-1.99.7/bin/../conf
Sqoop home directory: /opt/hadoop/sqoop-1.99.7
Sqoop tool executor:
Version: 1.99.7
Revision: 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb
Compiled on Tue Jul 19 16:08:27 PDT 2016 by abefine
Running tool: class org.apache.sqoop.tools.tool.UpgradeTool
0 [main] INFO org.apache.sqoop.core.PropertiesConfigurationProvider - Starting config file poller thread
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/hadoop/hadoop-2.7.5/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hadoop/hive-2.3.3/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
Tool class org.apache.sqoop.tools.tool.UpgradeTool has finished correctly.
[root@centoshadoop sqoop-1.99.7]#
8. 应用Sqoop工具
8.1. 服务端
8.1.1. 启动与关闭sqoop2-server
[root@centoshadoop bin]# cd /opt/hadoop/sqoop-1.99.7/bin/
[root@centoshadoop bin]# sqoop2-server start
Setting conf dir: /opt/hadoop/sqoop-1.99.7/bin/../conf
Sqoop home directory: /opt/hadoop/sqoop-1.99.7
Starting the Sqoop2 server...
[root@centoshadoop bin]# sqoop2-server stop
Setting conf dir: /opt/hadoop/sqoop-1.99.7/bin/../conf
Sqoop home directory: /opt/hadoop/sqoop-1.99.7
Stopping the Sqoop2 server...
Sqoop2 server stopped.
[root@centoshadoop bin]# jps
29780 NameNode
30085 SecondaryNameNode
30247 ResourceManager
31767 SqoopJettyServer
29913 DataNode
32107 Jps
30364 NodeManager
29245 JobHistoryServer
[root@centoshadoop bin]#
8.2. 客户端
8.2.1. 启动运行Sqoop的交互式Shell环境
[root@centoshadoop bin]# cd /opt/hadoop/sqoop-1.99.7/bin/
[root@centoshadoop bin]# sqoop2-shell
sqoop:000> :exit
8.2.2. 设置错误显示
sqoop:000> set option --name verbose --value true
Verbose option was changed to true
8.2.3. 连接Sqoop服务端
sqoop:000> set server -host 192.168.1.80
Server is set successfully
# set server --host ubuntu02 --port 12000 --webapp sqoop
sqoop:000> show version --all
client version:
Sqoop 1.99.7 source revision 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb
Compiled by abefine on Tue Jul 19 16:08:27 PDT 2016
server version:
Sqoop 1.99.7 source revision 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb
Compiled by abefine on Tue Jul 19 16:08:27 PDT 2016
API versions:
[v1]
8.2.4. 创建MySQL的Link对象
sqoop:000> show connector
+------------------------+---------+------------------------------------------------------------+----------------------+
| Name | Version | Class | Supported Directions |
+------------------------+---------+------------------------------------------------------------+----------------------+
| generic-jdbc-connector | 1.99.7 | org.apache.sqoop.connector.jdbc.GenericJdbcConnector | FROM/TO |
| kite-connector | 1.99.7 | org.apache.sqoop.connector.kite.KiteConnector | FROM/TO |
| oracle-jdbc-connector | 1.99.7 | org.apache.sqoop.connector.jdbc.oracle.OracleJdbcConnector | FROM/TO |
| ftp-connector | 1.99.7 | org.apache.sqoop.connector.ftp.FtpConnector | TO |
| hdfs-connector | 1.99.7 | org.apache.sqoop.connector.hdfs.HdfsConnector | FROM/TO |
| kafka-connector | 1.99.7 | org.apache.sqoop.connector.kafka.KafkaConnector | TO |
| sftp-connector | 1.99.7 | org.apache.sqoop.connector.sftp.SftpConnector | TO |
+------------------------+---------+------------------------------------------------------------+----------------------+
sqoop:000>
sqoop:000> create link -c generic-jdbc-connector
Creating link for connector with name generic-jdbc-connector
Please fill following values to create new link object
Name: mysql-link
Database connection
Driver class: com.mysql.jdbc.Driver
Connection String: jdbc:mysql://192.168.1.80:3306/sqooptest?useSSL=false
Username: root
Password: ***
Fetch Size:
Connection Properties:
There are currently 0 values in the map:
entry#
SQL Dialect
Identifier enclose: # 空格
New link was successfully created with validation status OK and name mysql-link
sqoop:000>
8.2.5. 创建HDFS的Link对象
sqoop:000> create link -connector hdfs-connector
Creating link for connector with name hdfs-connector
Please fill following values to create new link object
Name: hdfs-link
HDFS cluster
URI: hdfs://192.168.1.80:9000
Conf directory:
Additional configs: /opt/hadoop/hadoop-2.7.5/etc/hadoop
There are currently 0 values in the map:
entry#
New link was successfully created with validation status OK and name hdfs-link
sqoop:000>
8.2.6. 显示Link对象
sqoop:000> show link --all
2 link(s) to show:
link with name mysql-link (Enabled: true, Created by root at 5/23/18 3:48 PM, Updated by root at 5/23/18 3:48 PM)
Using Connector generic-jdbc-connector with name {1}
Database connection
Driver class: com.mysql.jdbc.Driver
Connection String: jdbc:mysql://192.168.1.80:3306/sqooptest?useSSL=false
Username: root
Password:
Fetch Size:
Connection Properties:
protocol = tcp
SQL Dialect
Identifier enclose: `
link with name hdfs-link (Enabled: true, Created by root at 5/23/18 4:00 PM, Updated by root at 5/23/18 4:00 PM)
Using Connector hdfs-connector with name {1}
HDFS cluster
URI: hdfs://192.168.1.80:9000
Conf directory:
Additional configs::
sqoop:000>
8.2.7. 创建MySQL导数据到HDFS的Job
8.2.7.1. 准备数据
create database sqooptest character set utf8;
CREATE TABLE topic (
id int(11) NOT NULL AUTO_INCREMENT,
name varchar(50) DEFAULT NULL,
address varchar(100) DEFAULT NULL,
time datetime DEFAULT NULL,
content varchar(500) DEFAULT NULL,
PRIMARY KEY(id)
)ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=UTF8;
INSERT INTO topic(name, address, time, content) values('11', '111', '2018-05-01 08:00:00', 'hello world');
INSERT INTO topic(name, address, time, content) values('11', '111', '2018-05-01 08:00:00', NULL);
8.2.7.2. 创建任务（MySQLàHDFS）
sqoop:000> create job -f mysql-link -t hdfs-link
Creating job for links with from name mysql-link and to name hdfs-link
Please fill following values to create new job object
Name: mysql2hdfs
Database source
Schema name: sqooptest #必填，数据库名称
Table name: topic #必填，表名
SQL statement:
Column names:
There are currently 0 values in the list:
element#
Partition column: id
Partition column nullable:
Boundary query:
Incremental read
Check column:
Last value:
Target configuration
Override null value:
Null value:
File format:
0 : TEXT_FILE
1 : SEQUENCE_FILE
2 : PARQUET_FILE
Choose: 0
Compression codec:
0 : NONE
1 : DEFAULT
2 : DEFLATE
3 : GZIP
4 : BZIP2
5 : LZO
6 : LZ4
7 : SNAPPY
8 : CUSTOM
Choose: 0
Custom codec:
Output directory:/sqoop/sqooptest/mysqltable/ #必填
Append mode:
Throttling resources
Extractors:
Loaders:
Classpath configuration
Extra mapper jars:
There are currently 0 values in the list:
element#
New job was successfully created with validation status OK and name mysql2hdfs
sqoop:000>
8.2.7.3. 启动Job
[root@centoshadoop sbin]# hadoop fs –mkdir -p /sqoop/sqooptest/mysqltable
[root@centoshadoop sbin]# hadoop fs –chmod –R 777 /sqoop
sqoop:000> show job
+----+-------------------------+-------------------------------------+----------------------------+---------+
| Id | Name | From Connector | To Connector | Enabled |
+----+-------------------------+-------------------------------------+----------------------------+---------+
| 1 | mysql2hdfs | mysql-link (generic-jdbc-connector) | hdfs-link (hdfs-connector) | true |
+----+-------------------------+-------------------------------------+----------------------------+---------+
sqoop:000>
sqoop:000> set option --name verbose --value true
Verbose option was changed to true
sqoop:000> start job -name mysql2hdfs
Submission details
Job Name: mysql2hdfs
Server URL: http://localhost:12000/sqoop/
Created by: root
Creation date: 2018-05-24 08:57:14 CST
Lastly updated by: root
External ID: job_1527123411152_0002
http://centoshadoop:8088/proxy/application_1527123411152_0002/
Source Connector schema: Schema{name= sqooptest . topic ,columns=[
FixedPoint{name=id,nullable=true,type=FIXED_POINT,byteSize=4,signed=true},
Text{name=name,nullable=true,type=TEXT,charSize=null},
Text{name=address,nullable=true,type=TEXT,charSize=null},
Date{name=time,nullable=true,type=DATE_TIME,hasFraction=true,hasTimezone=false},
Text{name=content,nullable=true,type=TEXT,charSize=null}]}
2018-05-24 08:57:14 CST: BOOTING - Progress is not available
sqoop:000>
8.2.7.4. 查看结果
[root@centoshadoop sbin]# hadoop fs -ls /sqoop/sqooptest/mysqltable
Found 1 items
-rw-r--r-- 1 root supergroup 97 2018-05-24 08:57 /sqoop/sqooptest/mysqltable/363e7159-49c3-40b2-937e-897acf2ad80b.txt
[root@centoshadoop sbin]# hadoop fs -cat /sqoop/sqooptest/mysqltable/363e7159-49c3-40b2-937e-897acf2ad80b.txt
3,'11','111','2018-05-01 08:00:00.000','hello world'
4,'11','111','2018-05-01 08:00:00.000',NULL
[root@centoshadoop sbin]#
