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从MySQL导入数据到HDFS：ClassNotFoundException

2017-02-06 46 views
1

我想从Hadoop中的Sqoop的MySQL的“员工”数据库导入“员工”表。我使用Hadoop版本“2.7.1”，Sqoop版本“1.4.6”，JDK版本“1.8.0_111”，MySQL版本是“5.7.17”。我已经开始了所有的Hadoop服务。但是，当我尝试从MySQL数据库导入表时，我收到异常。从MySQL导入数据到HDFS：ClassNotFoundException

我已经尝试了SQOOP Not able to import table中提到的方法来解决我的问题，但是他们都没有为我工作。

sqoop的安装路径是：/usr/local/sqoop/

，我使用导入数据的命令是：

bin/sqoop import --connect jdbc:mysql://localhost:3306/Employee --table employee --username root --password root --m 1 --target-dir /user/sqoop/sqlimport/employee

而那我收到的例外是：

Warning: /usr/local/sqoop/bin/../../hbase does not exist! HBase imports will fail. 
Please set $HBASE_HOME to the root of your HBase installation. 
Warning: /usr/local/sqoop/bin/../../hcatalog does not exist! HCatalog jobs will fail. 
Please set $HCAT_HOME to the root of your HCatalog installation. 
Warning: /usr/local/sqoop/bin/../../accumulo does not exist! Accumulo imports will fail. 
Please set $ACCUMULO_HOME to the root of your Accumulo installation. 
Warning: /usr/local/sqoop/bin/../../zookeeper does not exist! Accumulo imports will fail. 
Please set $ZOOKEEPER_HOME to the root of your Zookeeper installation. 
17/02/06 16:44:15 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6 
17/02/06 16:44:15 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 
17/02/06 16:44:15 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 
17/02/06 16:44:15 INFO tool.CodeGenTool: Beginning code generation 
Mon Feb 06 16:44:15 GMT 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 
17/02/06 16:44:16 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `employee` AS t LIMIT 1 
17/02/06 16:44:16 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM `employee` AS t LIMIT 1 
17/02/06 16:44:16 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /usr/local/hadoop/hadoop-2.7.1 
Note: /tmp/sqoop-hduser/compile/f278f3a3c2014397621b675f68a94873/employee.java uses or overrides a deprecated API. 
Note: Recompile with -Xlint:deprecation for details. 
17/02/06 16:44:17 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-hduser/compile/f278f3a3c2014397621b675f68a94873/employee.jar 
17/02/06 16:44:17 WARN manager.MySQLManager: It looks like you are importing from mysql. 
17/02/06 16:44:17 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 
17/02/06 16:44:17 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 
17/02/06 16:44:17 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 
17/02/06 16:44:17 INFO mapreduce.ImportJobBase: Beginning import of employee 
17/02/06 16:44:17 INFO Configuration.deprecation: mapred.job.tracker is deprecated. Instead, use mapreduce.jobtracker.address 
17/02/06 16:44:17 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 
17/02/06 16:44:17 INFO Configuration.deprecation: mapred.jar is deprecated. Instead, use mapreduce.job.jar 
17/02/06 16:44:18 INFO Configuration.deprecation: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps 
17/02/06 16:44:18 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id 
17/02/06 16:44:18 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId= 
Mon Feb 06 16:44:18 GMT 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 
17/02/06 16:44:18 INFO db.DBInputFormat: Using read commited transaction isolation 
17/02/06 16:44:18 INFO mapreduce.JobSubmitter: number of splits:1 
17/02/06 16:44:18 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_local819205273_0001 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458978/parquet-avro-1.4.1.jar <- /usr/local/sqoop/bin/parquet-avro-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-avro-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458978/parquet-avro-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458979/parquet-generator-1.4.1.jar <- /usr/local/sqoop/bin/parquet-generator-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-generator-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458979/parquet-generator-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458980/commons-logging-1.1.1.jar <- /usr/local/sqoop/bin/commons-logging-1.1.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/commons-logging-1.1.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458980/commons-logging-1.1.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458981/jackson-annotations-2.3.0.jar <- /usr/local/sqoop/bin/jackson-annotations-2.3.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/jackson-annotations-2.3.0.jar as file:/app/hadoop/tmp/mapred/local/1486399458981/jackson-annotations-2.3.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458982/jackson-core-asl-1.9.13.jar <- /usr/local/sqoop/bin/jackson-core-asl-1.9.13.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/jackson-core-asl-1.9.13.jar as file:/app/hadoop/tmp/mapred/local/1486399458982/jackson-core-asl-1.9.13.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458983/parquet-jackson-1.4.1.jar <- /usr/local/sqoop/bin/parquet-jackson-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-jackson-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458983/parquet-jackson-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458984/jackson-databind-2.3.1.jar <- /usr/local/sqoop/bin/jackson-databind-2.3.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/jackson-databind-2.3.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458984/jackson-databind-2.3.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458985/parquet-column-1.4.1.jar <- /usr/local/sqoop/bin/parquet-column-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-column-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458985/parquet-column-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458986/hsqldb-1.8.0.10.jar <- /usr/local/sqoop/bin/hsqldb-1.8.0.10.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/hsqldb-1.8.0.10.jar as file:/app/hadoop/tmp/mapred/local/1486399458986/hsqldb-1.8.0.10.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458987/kite-data-core-1.0.0.jar <- /usr/local/sqoop/bin/kite-data-core-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/kite-data-core-1.0.0.jar as file:/app/hadoop/tmp/mapred/local/1486399458987/kite-data-core-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458988/parquet-format-2.0.0.jar <- /usr/local/sqoop/bin/parquet-format-2.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-format-2.0.0.jar as file:/app/hadoop/tmp/mapred/local/1486399458988/parquet-format-2.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458989/ant-eclipse-1.0-jvm1.2.jar <- /usr/local/sqoop/bin/ant-eclipse-1.0-jvm1.2.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/ant-eclipse-1.0-jvm1.2.jar as file:/app/hadoop/tmp/mapred/local/1486399458989/ant-eclipse-1.0-jvm1.2.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458990/parquet-hadoop-1.4.1.jar <- /usr/local/sqoop/bin/parquet-hadoop-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-hadoop-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458990/parquet-hadoop-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458991/commons-jexl-2.1.1.jar <- /usr/local/sqoop/bin/commons-jexl-2.1.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/commons-jexl-2.1.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458991/commons-jexl-2.1.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458992/sqoop-1.4.6.jar <- /usr/local/sqoop/bin/sqoop-1.4.6.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/sqoop-1.4.6.jar as file:/app/hadoop/tmp/mapred/local/1486399458992/sqoop-1.4.6.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458993/opencsv-2.3.jar <- /usr/local/sqoop/bin/opencsv-2.3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/opencsv-2.3.jar as file:/app/hadoop/tmp/mapred/local/1486399458993/opencsv-2.3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458994/parquet-encoding-1.4.1.jar <- /usr/local/sqoop/bin/parquet-encoding-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-encoding-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458994/parquet-encoding-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458995/snappy-java-1.0.5.jar <- /usr/local/sqoop/bin/snappy-java-1.0.5.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/snappy-java-1.0.5.jar as file:/app/hadoop/tmp/mapred/local/1486399458995/snappy-java-1.0.5.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458996/mysql-connector-java-5.1.40-bin.jar <- /usr/local/sqoop/bin/mysql-connector-java-5.1.40-bin.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/mysql-connector-java-5.1.40-bin.jar as file:/app/hadoop/tmp/mapred/local/1486399458996/mysql-connector-java-5.1.40-bin.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458997/avro-mapred-1.7.5-hadoop2.jar <- /usr/local/sqoop/bin/avro-mapred-1.7.5-hadoop2.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/avro-mapred-1.7.5-hadoop2.jar as file:/app/hadoop/tmp/mapred/local/1486399458997/avro-mapred-1.7.5-hadoop2.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458998/jackson-core-2.3.1.jar <- /usr/local/sqoop/bin/jackson-core-2.3.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/jackson-core-2.3.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458998/jackson-core-2.3.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399458999/parquet-common-1.4.1.jar <- /usr/local/sqoop/bin/parquet-common-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/parquet-common-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399458999/parquet-common-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459000/kite-data-hive-1.0.0.jar <- /usr/local/sqoop/bin/kite-data-hive-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/kite-data-hive-1.0.0.jar as file:/app/hadoop/tmp/mapred/local/1486399459000/kite-data-hive-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459001/slf4j-api-1.6.1.jar <- /usr/local/sqoop/bin/slf4j-api-1.6.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/slf4j-api-1.6.1.jar as file:/app/hadoop/tmp/mapred/local/1486399459001/slf4j-api-1.6.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459002/commons-io-1.4.jar <- /usr/local/sqoop/bin/commons-io-1.4.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/commons-io-1.4.jar as file:/app/hadoop/tmp/mapred/local/1486399459002/commons-io-1.4.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459003/ant-contrib-1.0b3.jar <- /usr/local/sqoop/bin/ant-contrib-1.0b3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/ant-contrib-1.0b3.jar as file:/app/hadoop/tmp/mapred/local/1486399459003/ant-contrib-1.0b3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459004/kite-hadoop-compatibility-1.0.0.jar <- /usr/local/sqoop/bin/kite-hadoop-compatibility-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/kite-hadoop-compatibility-1.0.0.jar as file:/app/hadoop/tmp/mapred/local/1486399459004/kite-hadoop-compatibility-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459005/jackson-mapper-asl-1.9.13.jar <- /usr/local/sqoop/bin/jackson-mapper-asl-1.9.13.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/jackson-mapper-asl-1.9.13.jar as file:/app/hadoop/tmp/mapred/local/1486399459005/jackson-mapper-asl-1.9.13.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459006/kite-data-mapreduce-1.0.0.jar <- /usr/local/sqoop/bin/kite-data-mapreduce-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/kite-data-mapreduce-1.0.0.jar as file:/app/hadoop/tmp/mapred/local/1486399459006/kite-data-mapreduce-1.0.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459007/commons-compress-1.4.1.jar <- /usr/local/sqoop/bin/commons-compress-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/commons-compress-1.4.1.jar as file:/app/hadoop/tmp/mapred/local/1486399459007/commons-compress-1.4.1.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459008/paranamer-2.3.jar <- /usr/local/sqoop/bin/paranamer-2.3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/paranamer-2.3.jar as file:/app/hadoop/tmp/mapred/local/1486399459008/paranamer-2.3.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459009/xz-1.0.jar <- /usr/local/sqoop/bin/xz-1.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/xz-1.0.jar as file:/app/hadoop/tmp/mapred/local/1486399459009/xz-1.0.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459010/commons-codec-1.4.jar <- /usr/local/sqoop/bin/commons-codec-1.4.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/commons-codec-1.4.jar as file:/app/hadoop/tmp/mapred/local/1486399459010/commons-codec-1.4.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Creating symlink: /app/hadoop/tmp/mapred/local/1486399459011/avro-1.7.5.jar <- /usr/local/sqoop/bin/avro-1.7.5.jar 
17/02/06 16:44:19 INFO mapred.LocalDistributedCacheManager: Localized file:/usr/local/sqoop/lib/avro-1.7.5.jar as file:/app/hadoop/tmp/mapred/local/1486399459011/avro-1.7.5.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458978/parquet-avro-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458979/parquet-generator-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458980/commons-logging-1.1.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458981/jackson-annotations-2.3.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458982/jackson-core-asl-1.9.13.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458983/parquet-jackson-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458984/jackson-databind-2.3.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458985/parquet-column-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458986/hsqldb-1.8.0.10.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458987/kite-data-core-1.0.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458988/parquet-format-2.0.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458989/ant-eclipse-1.0-jvm1.2.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458990/parquet-hadoop-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458991/commons-jexl-2.1.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458992/sqoop-1.4.6.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458993/opencsv-2.3.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458994/parquet-encoding-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458995/snappy-java-1.0.5.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458996/mysql-connector-java-5.1.40-bin.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458997/avro-mapred-1.7.5-hadoop2.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458998/jackson-core-2.3.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399458999/parquet-common-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459000/kite-data-hive-1.0.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459001/slf4j-api-1.6.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459002/commons-io-1.4.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459003/ant-contrib-1.0b3.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459004/kite-hadoop-compatibility-1.0.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459005/jackson-mapper-asl-1.9.13.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459006/kite-data-mapreduce-1.0.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459007/commons-compress-1.4.1.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459008/paranamer-2.3.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459009/xz-1.0.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459010/commons-codec-1.4.jar 
17/02/06 16:44:20 INFO mapred.LocalDistributedCacheManager: file:/app/hadoop/tmp/mapred/local/1486399459011/avro-1.7.5.jar 
17/02/06 16:44:20 INFO mapreduce.Job: The url to track the job: http://localhost:8080/ 
17/02/06 16:44:20 INFO mapreduce.Job: Running job: job_local819205273_0001 
17/02/06 16:44:20 INFO mapred.LocalJobRunner: OutputCommitter set in config null 
17/02/06 16:44:20 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1 
17/02/06 16:44:20 INFO mapred.LocalJobRunner: OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter 
17/02/06 16:44:20 INFO mapred.LocalJobRunner: Waiting for map tasks 
17/02/06 16:44:20 INFO mapred.LocalJobRunner: Starting task: attempt_local819205273_0001_m_000000_0 
17/02/06 16:44:20 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1 
17/02/06 16:44:20 INFO mapred.Task: Using ResourceCalculatorProcessTree : [ ] 
Mon Feb 06 16:44:20 GMT 2017 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 
17/02/06 16:44:20 INFO db.DBInputFormat: Using read commited transaction isolation 
17/02/06 16:44:20 INFO mapred.MapTask: Processing split: 1=1 AND 1=1 
17/02/06 16:44:20 INFO mapred.LocalJobRunner: map task executor complete. 
17/02/06 16:44:20 WARN mapred.LocalJobRunner: job_local819205273_0001 
java.lang.Exception: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class employee not found 
    at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462) 
    at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522) 
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class employee not found 
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2195) 
    at org.apache.sqoop.mapreduce.db.DBConfiguration.getInputClass(DBConfiguration.java:403) 
    at org.apache.sqoop.mapreduce.db.DataDrivenDBInputFormat.createDBRecordReader(DataDrivenDBInputFormat.java:237) 
    at org.apache.sqoop.mapreduce.db.DBInputFormat.createRecordReader(DBInputFormat.java:263) 
    at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:515) 
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:758) 
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) 
    at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243) 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.ClassNotFoundException: Class employee not found 
    at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2101) 
    at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2193) 
    ... 12 more 
17/02/06 16:44:21 INFO mapreduce.Job: Job job_local819205273_0001 running in uber mode : false 
17/02/06 16:44:21 INFO mapreduce.Job: map 0% reduce 0% 
17/02/06 16:44:21 INFO mapreduce.Job: Job job_local819205273_0001 failed with state FAILED due to: NA 
17/02/06 16:44:21 INFO mapreduce.Job: Counters: 0 
17/02/06 16:44:21 WARN mapreduce.Counters: Group FileSystemCounters is deprecated. Use org.apache.hadoop.mapreduce.FileSystemCounter instead 
17/02/06 16:44:21 INFO mapreduce.ImportJobBase: Transferred 0 bytes in 2.7879 seconds (0 bytes/sec) 
17/02/06 16:44:21 WARN mapreduce.Counters: Group org.apache.hadoop.mapred.Task$Counter is deprecated. Use org.apache.hadoop.mapreduce.TaskCounter instead 
17/02/06 16:44:21 INFO mapreduce.ImportJobBase: Retrieved 0 records. 
17/02/06 16:44:21 ERROR tool.ImportTool: Error during import: Import job failed!

注意：

我已经在一个组“hdgroup”中的单独用户“hduser”中安装了Hadoop及其相关工具。

来源

2017-02-06 Mants

+0

用'运行--outdir java_files'选项并查看错误是否消失... –

+0

[SQOOP不能导入表]的可能重复（http://stackoverflow.com/questions/21599785/sqoop-not-able-to-import -table） – oh54

+0

@RonakPatel，我尝试了'bin/sqoop import --connect jdbc：mysql：//localhost：3306/Employee --table employee --username root --password root --m 1 --target-dir/user/sqoop/sqlimport/employee --outdir java_files'，但仍然收到相同的异常。 – Mants

回答

1

在这个问题上花了很多时间后，我自己找到了解决方案。我需要使用--bindir选项来指向sqoop的安装目录，以通知sqoop服务应该从哪里选择jar文件。

命令为我工作从MySQL导入数据到HDFS是：为我工作

bin/sqoop import --connect jdbc:mysql://localhost:3306/Employee --username root --password root --m 1 --table employee --bindir /usr/local/sqoop/ --target-dir /user/sqoop/sqlimport/employee

命令把数据从HDFS导出到MySQL是：

bin/sqoop export --connect jdbc:mysql://localhost:3306/Employee --username root --password root --m 1 --table employeeexported --bindir /usr/local/sqoop/ --export-dir /user/sqoop/sqlimport/employee/part-m-00000

来源

2017-02-08 14:29:52 Mants

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