sqoop 导出hive数据到mysql 执行命令
bin/sqoop export --connect jdbc:mysql://slaver3:3306/ishangzu --username root --password root --table dw_pv_uv_ip --export-dir /user/hive/warehouse/t_20161019.db/dw_pv_uv_ip/datestr=20161019 --input-fields-terminated-by '\001'
报如下错误:
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:928) at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1750) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1290) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2493) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2526) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2311) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at com.mysql.jdbc.Util.handleNewInstance(Util.java:411) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:416) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:347) at java.sql.DriverManager.getConnection(DriverManager.java:571) at java.sql.DriverManager.getConnection(DriverManager.java:215) at org.apache.sqoop.manager.SqlManager.makeConnection(SqlManager.java:885) at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52) at org.apache.sqoop.manager.CatalogQueryManager.listTables(CatalogQueryManager.java:102) at org.apache.sqoop.tool.ListTablesTool.run(ListTablesTool.java:49) at org.apache.sqoop.Sqoop.run(Sqoop.java:143) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:179) at org.apache.sqoop.Sqoop.runTool(Sqoop.java:218) at org.apache.sqoop.Sqoop.runTool(Sqoop.java:227) at org.apache.sqoop.Sqoop.main(Sqoop.java:236)
问题本质:基于安全考虑root账户一般只能本地访问,但是在开发过程中可能需要打开root的远程访问权限。下面是基本的步骤:
登录到mysql中,为root进行远程访问的授权,执行下面的命令:
mysql> GRANT ALL PRIVILEGES ON *.* TO root@"%" IDENTIFIED BY "root";
mysql> flush privileges;
执行完上面的操作后,即可