sqoop连接mysq了，用root用户报错，换成普通用户就可以了。

1、用root用户连接，报错
[hadoop@ha1 ~]$ sqoop import --connect jdbc:mysql://192.168.255.11:3306/test --username root -password 123456 --table t1 -m 1
13/05/12 19:36:04 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/05/12 19:36:04 INFO tool.CodeGenTool: Beginning code generation
13/05/12 19:36:05 ERROR manager.SqlManager: Error executing statement: java.sql.SQLException: Access denied for user 'root'@'192.168.255.11' (using password: YES)
13/05/12 19:36:05 ERROR manager.SqlManager: Error executing statement: java.sql.SQLException: Access denied for user 'root'@'192.168.255.11' (using password: YES)
java.sql.SQLException: Access denied for user 'root'@'192.168.255.11' (using password: YES)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3603)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3535)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:934)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4104)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1299)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2338)
at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2371)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.cloudera.sqoop.manager.SqlManager.makeConnection(SqlManager.java:606)
at com.cloudera.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:51)
at com.cloudera.sqoop.manager.MySQLManager.execute(MySQLManager.java:201)
at com.cloudera.sqoop.manager.SqlManager.getColumnNamesForRawQuery(SqlManager.java:112)
at com.cloudera.sqoop.manager.SqlManager.getColumnNames(SqlManager.java:96)
at com.cloudera.sqoop.orm.ClassWriter.generate(ClassWriter.java:924)
at com.cloudera.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:82)
at com.cloudera.sqoop.tool.ImportTool.importTable(ImportTool.java:337)
at com.cloudera.sqoop.tool.ImportTool.run(ImportTool.java:423)
at com.cloudera.sqoop.Sqoop.run(Sqoop.java:144)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at com.cloudera.sqoop.Sqoop.runSqoop(Sqoop.java:180)
at com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:218)
at com.cloudera.sqoop.Sqoop.main(Sqoop.java:228)
13/05/12 19:36:05 ERROR sqoop.Sqoop: Got exception running Sqoop: java.lang.NullPointerException
java.lang.NullPointerException
at com.cloudera.sqoop.orm.ClassWriter.cleanColNames(ClassWriter.java:889)
at com.cloudera.sqoop.orm.ClassWriter.generate(ClassWriter.java:951)
at com.cloudera.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:82)
at com.cloudera.sqoop.tool.ImportTool.importTable(ImportTool.java:337)
at com.cloudera.sqoop.tool.ImportTool.run(ImportTool.java:423)
at com.cloudera.sqoop.Sqoop.run(Sqoop.java:144)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at com.cloudera.sqoop.Sqoop.runSqoop(Sqoop.java:180)
at com.cloudera.sqoop.Sqoop.runTool(Sqoop.java:218)
at com.cloudera.sqoop.Sqoop.main(Sqoop.java:228)

[hadoop@ha1 ~]$ sqoop import --connect jdbc:mysql://192.168.255.11:3306/test --username hive -password hive --table t1 -m 1
13/05/12 19:39:52 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead.
13/05/12 19:39:52 INFO tool.CodeGenTool: Beginning code generation
13/05/12 19:39:52 INFO manager.MySQLManager: Executing SQL statement: SELECT t.* FROM `t1` AS t LIMIT 1
13/05/12 19:39:52 INFO manager.MySQLManager: Executing SQL statement: SELECT t.* FROM `t1` AS t LIMIT 1
13/05/12 19:39:52 INFO orm.CompilationManager: HADOOP_HOME is /hadoop/hadoop-0.20.2/bin/..
13/05/12 19:39:52 INFO orm.CompilationManager: Found hadoop core jar at: /hadoop/hadoop-0.20.2/bin/../hadoop-0.20.2-core.jar
13/05/12 19:39:55 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hadoop/compile/1d908a6795a11d16b02c45842702585d/t1.jar
13/05/12 19:39:55 WARN manager.MySQLManager: It looks like you are importing from mysql.
13/05/12 19:39:55 WARN manager.MySQLManager: This transfer can be faster! Use the --direct
13/05/12 19:39:55 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path.
13/05/12 19:39:55 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql)
13/05/12 19:39:55 INFO mapreduce.ImportJobBase: Beginning import of t1
13/05/12 19:39:55 INFO manager.MySQLManager: Executing SQL statement: SELECT t.* FROM `t1` AS t LIMIT 1
13/05/12 19:39:59 INFO mapred.JobClient: Running job: job_201305121833_0001