java - Sqoop导入错误错误:java.io.IOException:nextKeyValue中的SQLException

Question

我编写了一个脚本，以执行从oracle表到HDFS目录的增量数据导入。我使用以下sqoop命令进行导入:

    sqoop -- import \
   --connect $JDBCconnectionString  \
   --username $dbUserName \
   --password-file $passwordLocal \
   --query 'select * from dmt_sim.dim_product WHERE $CONDITIONS' \
   --split-by "PRODUCT_TITLE" \
   --incremental append \
   --check-column "KEY" \
   --last-value "1" \
   --append \
   --fields-terminated-by '\t' \
   --target-dir /user/ksrinivasan/dmn_product

在运行期间将替换变量$ JDBCconnectionString，$ dbUserName，$ passwordLocal的值，以便与oracle数据库的连接和获取边界值均成功，但是在作业启动时会引发错误。

16/01/25 06:19:29 INFO mapreduce.Job: Job job_1452256584707_106782 running in uber mode : false
06:19:36            16/01/25 06:19:29 INFO mapreduce.Job:  map 0% reduce 0%
06:20:07            16/01/25 06:20:00 INFO mapreduce.Job: Task Id : attempt_1452256584707_106782_m_000000_0, Status : FAILED
06:20:07            Error: java.io.IOException: SQLException in nextKeyValue
06:20:07                at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:277)
06:20:07                at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:553)
06:20:07                at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
06:20:07                at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
06:20:07                at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
06:20:07                at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
06:20:07                at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
06:20:07                at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
06:20:07                at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
06:20:07                at java.security.AccessController.doPrivileged(Native Method)
06:20:07                at javax.security.auth.Subject.doAs(Subject.java:415)
06:20:07                at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
06:20:07                at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
06:20:07            Caused by: java.sql.SQLSyntaxErrorException: ORA-00907: missing right parenthesis
06:20:07            
06:20:07                at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:445)
06:20:07                at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
06:20:07                at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
06:20:07                at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
06:20:07                at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)
06:20:07                at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
06:20:07                at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)
06:20:07                at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:884)
06:20:07                at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1167)
06:20:07                at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1289)
06:20:07                at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3584)
06:20:07                at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:3628)
06:20:07                at oracle.jdbc.driver.OraclePreparedStatementWrapper.executeQuery(OraclePreparedStatementWrapper.java:1493)
06:20:07                at org.apache.sqoop.mapreduce.db.DBRecordReader.executeQuery(DBRecordReader.java:111)
06:20:07                at org.apache.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:235)
06:20:07                ... 12 more
06:20:07            

因此，如果其他人也遇到了同样的问题，并且他们对如何调试此类问题有一些见识，那很好!

Answer 1

nextKeyValue中的SQLException
这意味着在您执行时，源KEY列中没有最后一个值“1”。