（1）connector：sqoop2中预定了各种链接，这些链接是一些配置模板。#查看预定制的连接器sqoop:000> show connector+------------------------+---------+------------------------------------------------------------+----------------------+|          Name          | Version |                           Class                            | Supported Directions |+------------------------+---------+------------------------------------------------------------+----------------------+| oracle-jdbc-connector  | 1.99.7  | org.apache.sqoop.connector.jdbc.oracle.OracleJdbcConnector | FROM/TO              || sftp-connector         | 1.99.7  | org.apache.sqoop.connector.sftp.SftpConnector              | TO                   || kafka-connector        | 1.99.7  | org.apache.sqoop.connector.kafka.KafkaConnector            | TO                   || kite-connector         | 1.99.7  | org.apache.sqoop.connector.kite.KiteConnector              | 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              || generic-jdbc-connector | 1.99.7  | org.apache.sqoop.connector.jdbc.GenericJdbcConnector       | FROM/TO              |+------------------------+---------+------------------------------------------------------------+----------------------+其中，最基本的是generic-jdbc-connector，是mysql等关系型数据库的连接器。支持数据的从关系型数据库的导入导出。除此之外，支持导入导出的还有：hdfs-connector、kite-connector和oracle-jdbc-connector。仅支持数据导入的连接器有： sftp-connector 、 ftp-connector 以及kafka-connector 。通过这些模板，可以创建出对应数据源的link，比如我们链接mysql，就是使用JDBC的方式进行链接，这时候就从这个generic-jdbc-connector模板继承出一个link。那如果我们需要连接hdfs，则需要使用hdfs-connector模版。（2）link：从connector继承出的对象，用于指定的对数据源的链接。（3）job：指定一个导入导出作业，必须指定数据源和数据目的地，并配置各项job参数，用于提交给mapreduce。

#设置set [server|option|truststore]#查看show [server|version|connector|driver|link|job|submission|option|role|principal|privilege]#创建create [link|job|role]#删除delete [link|job|role]#更新update [link|job]#克隆clone [link|job]#执行任务start [job]#结束任务stop [job]#查看任务状态status [job]#启用enable [link|job]#禁用disable [link|job]#授权grant [role|privilege]#回收授权revoke [role|privilege]

set option --name verbose --value trueset option --name poll-timeout --value 20000

sqoop:000> show server -allServer host: localhostServer port: 12000Server webapp: sqoop

sqoop:000> show version -allclient version:  Sqoop 1.99.7 source revision 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb   Compiled by abefine on Tue Jul 19 16:08:27 PDT 2016server version:  Sqoop 1.99.7 source revision 435d5e61b922a32d7bce567fe5fb1a9c0d9b1bbb   Compiled by abefine on Tue Jul 19 16:08:27 PDT 2016API versions:  [v1]

sqoop:000> show connector +------------------------+---------+------------------------------------------------------------+----------------------+|          Name          | Version |                           Class                            | Supported Directions |+------------------------+---------+------------------------------------------------------------+----------------------+| oracle-jdbc-connector  | 1.99.7  | org.apache.sqoop.connector.jdbc.oracle.OracleJdbcConnector | FROM/TO              || sftp-connector         | 1.99.7  | org.apache.sqoop.connector.sftp.SftpConnector              | TO                   || kafka-connector        | 1.99.7  | org.apache.sqoop.connector.kafka.KafkaConnector            | TO                   || kite-connector         | 1.99.7  | org.apache.sqoop.connector.kite.KiteConnector              | 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              || generic-jdbc-connector | 1.99.7  | org.apache.sqoop.connector.jdbc.GenericJdbcConnector       | FROM/TO              |+------------------------+---------+------------------------------------------------------------+----------------------+

sqoop:000> show link0    [main] WARN  org.apache.hadoop.util.NativeCodeLoader  - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable+------+----------------+---------+| Name | Connector Name | Enabled |+------+----------------+---------++------+----------------+---------+

show server --allshow option --name verboseshow version --allshow connector --all or show connectorshow drivershow link --allshow link --name linkNameshow job --all show job --name jobNameshow submissionshow submission -j jobNameshow submission --job jobName --detail

create link --connector connectorName
create link -c connectorName

例如：
create link -connector generic-jdbc-connector
create link -connector hdfs-connector

create job --from fromLinkName --to toLinkName create job -f fromLinkName -t toLinkName

update link --name linkNameupdate job --name jobName

delete link --name linkNamedelete job --name jobName

clone link --name linkNameclone job --name jobName

start job --name jobNamestart job --name jobName --synchronous

stop job --name jobName

status job --name jobName