Solutions to a series of problems in sqoop job creation

1、 One is to report null pointer errors, as shown in the figure ：

There are two possibilities , The first is the lack of dependent packages ：
cp /opt/software/mysql-connector-java-5.1.31.jar /opt/install/sqoop/lib/
cp /opt/software/commons-lang-2.6.jar /opt/install/sqoop/lib/
cp /opt/software/java-json.jar /opt/install/sqoop/lib/
The second is /sqoop/lib/ There are more hive-exec-3.1.2.jar, Pictured ：

sqoop Of lib Under the folder , Delete the package in the blue box , Or move to another place , To create a job It's going to work

2、 Solve the above problems , It may also report errors

hold /hive/conf/hive-site.xml Copy to /sqoop/conf Under the document

3、Sqoop Report errors ：
ERROR Could not register mbeans java.security.
AccessControlException:access denied(“javax.management.MBeanTrustPermission”“register”)
terms of settlement ：
modify Jdk The file of jdk1.8.0_11/jre/lib/security/java.policy
The specific configuration is as follows ：
grant{
permission javax.management.MBenTrustPermission"register";
};