sqoop将mysql数据表导入到hive报错
[root@ip-172-32-1-221 lib]# sqoop import --connect jdbc:mysql://54.223.175.12:3308/gxt3 --username guesttest --password guesttest --table ecomaccessv3 -m 1 --hive-import Warning: /opt/cloudera/parcels/CDH-5.10.0-1.cdh5.10.0.p0.41/bin/../lib/sqoop/../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. 18/06/20 16:34:32 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6-cdh5.10.0 18/06/20 16:34:32 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 18/06/20 16:34:32 INFO tool.BaseSqoopTool: Using Hive-specific delimiters for output. You can override 18/06/20 16:34:32 INFO tool.BaseSqoopTool: delimiters with --fields-terminated-by, etc. 18/06/20 16:34:32 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 18/06/20 16:34:32 INFO tool.CodeGenTool: Beginning code generation 18/06/20 16:34:32 ERROR manager.SqlManager: Error executing statement: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 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.SQLError.createCommunicationsException(SQLError.java:1137) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:355) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2490) 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:904) at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52) at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:763) at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:786) at org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:289) at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:260) at org.apache.sqoop.manager.SqlManager.getColumnTypes(SqlManager.java:246) at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:327) at org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1858) at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1658) at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107) at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:488) at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:615) 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) Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.<init>(Socket.java:425) at java.net.Socket.<init>(Socket.java:241) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:258) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:305) ... 33 more 18/06/20 16:34:32 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:1664) at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107) at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:488) at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:615) 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)
网上说是MySQL驱动包的问题下，需要更换驱动包：“原有的jar包是mysql-connector-java-5.1.17.jar，替换成mysql-connector-java-5.1.32-bin.jar，可以使用了” ------亲测不行
cd /opt/cloudera/parcels/CDH-5.10.0-1.cdh5.10.0.p0.41/lib/sqoop/lib/ ll cp /home/zc.lee/mysql-connector-java-5.1.32-bin.jar ./mysql-connector-java.jar
运行起来还是没有能把mr task跑起来，报错和上次一致。