sqoop從mysql向hive中導數據時報數據庫訪問被拒絕怎么辦

這篇文章主要講解了“sqoop從mysql向hive中導數據時報數據庫訪問被拒絕怎么辦”，文中的講解內容簡單清晰，易于學習與理解，下面請大家跟著小編的思路慢慢深入，一起來研究和學習“sqoop從mysql向hive中導數據時報數據庫訪問被拒絕怎么辦”吧！

sqoop從mysql向hive中導數據，報數據庫訪問被拒絕。但詭異的是，sqoop的報錯是提示連接本機的mysql被拒絕了，并不是提示連接目標數據所在的mysql被拒絕。我的還連了zookeeper，還會提示連接所有的zookeeper主機的mysql被拒絕。日志如最下方。

其實這些問題都是一個原因，就是目標數據所在的mysql限制了zookeeper的主機去訪問它。只需要在該mysql上授權即可。

執行

grant all privileges on *.* to hadoop@'%' identified by 'password';
flush privileges;

出錯日志：

15/09/17 10:51:30 ERROR manager.SqlManager: Error executing statement: java.sql.SQLException: Access denied for user 'hadoop'@'192.168.1.110' (using password: YES)
java.sql.SQLException: Access denied for user 'hadoop'@'192.168.1.110' (using password: YES)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1094)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4208)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4140)
        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:925)
        at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1747)
        at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1287)
        at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2494)
        at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2527)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2309)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:834)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
        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:408)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:419)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
        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.SqlManager.execute(SqlManager.java:744)
        at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:767)
        at org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:270)
        at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:241)
        at org.apache.sqoop.manager.SqlManager.getColumnTypesForQuery(SqlManager.java:234)
        at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:304)
        at org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1833)
        at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1645)
        at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107)
        at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:478)
        at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
        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)
15/09/17 10:51:30 ERROR tool.ImportTool: Encountered IOException running import job: java.io.IOException: No columns to generate for ClassWriter
        at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1651)
        at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107)
        at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:478)
        at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:605)
        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)

感謝各位的閱讀，以上就是“sqoop從mysql向hive中導數據時報數據庫訪問被拒絕怎么辦”的內容了，經過本文的學習后，相信大家對sqoop從mysql向hive中導數據時報數據庫訪問被拒絕怎么辦這一問題有了更深刻的體會，具體使用情況還需要大家實踐驗證。這里是億速云，小編將為大家推送更多相關知識點的文章，歡迎關注！