mysql - Sqoop 导出到 MySQL 导出作业失败工具.ExportTool 但得到记录

Question

这是来自

的后续问题

sqoop export local csv to MySQL error on mapreduce

我能够运行 sqoop 作业并使用以下命令将数据从本地 .csv 文件导入 MySQL:

$ sqoop export -fs local -jt local -D 'mapreduce.application.framework.path=/usr/hdp/2.5.0.0-1245/hadoop/mapreduce.tar.gz' --connect jdbc:mysql://172.52.21.64:3306/cf_ae07c762_41a9_4b46_af6c_a29ecb050204 --username username --password password --table test3 --export-dir file:///home/username/folder/test3.csv

但是，即使我在 MySQL 中检查后成功导出记录，我仍然看到错误 ERROR tool.ExportTool: Error during export: Export job failed!

完整日志如下:

17/04/10 09:36:28 INFO mapreduce.Job: The url to track the job: http://localhost:8080/
17/04/10 09:36:28 INFO mapreduce.Job: Running job: job_local2136897360_0001
17/04/10 09:36:28 INFO mapred.LocalJobRunner: OutputCommitter set in config null
17/04/10 09:36:28 INFO mapred.LocalJobRunner: OutputCommitter is org.apache.sqoop.mapreduce.NullOutputCommitter
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Waiting for map tasks
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Starting task: attempt_local2136897360_0001_m_000000_0
17/04/10 09:36:28 INFO mapred.Task:  Using ResourceCalculatorProcessTree : [ ]
17/04/10 09:36:28 INFO mapred.MapTask: Processing split: Paths:/home/username/folder/test3.csv:36+7,/home/username/folder/test3.csv:43+8
17/04/10 09:36:28 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false
17/04/10 09:36:28 INFO mapred.LocalJobRunner:
17/04/10 09:36:28 INFO mapred.Task: Task:attempt_local2136897360_0001_m_000000_0 is done. And is in the process of committing
17/04/10 09:36:28 INFO mapred.LocalJobRunner: map
17/04/10 09:36:28 INFO mapred.Task: Task 'attempt_local2136897360_0001_m_000000_0' done.
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Finishing task: attempt_local2136897360_0001_m_000000_0
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Starting task: attempt_local2136897360_0001_m_000001_0
17/04/10 09:36:28 INFO mapred.Task:  Using ResourceCalculatorProcessTree : [ ]
17/04/10 09:36:28 INFO mapred.MapTask: Processing split: Paths:/home/username/folder/test3.csv:0+12
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper:
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: Exception raised during data export
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper:
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: Exception:
java.lang.RuntimeException: Can't parse input data: 'id'
    at test3.__loadFromFields(test3.java:316)
    at test3.parse(test3.java:254)
    at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:89)
    at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
    at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
    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$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NumberFormatException: For input string: "id"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:492)
    at java.lang.Integer.valueOf(Integer.java:582)
    at test3.__loadFromFields(test3.java:303)
    ... 13 more
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: Dumping data is not allowed by default, please run the job with -Dorg.apache.sqoop.export.text.dump_data_on_error=true to get corrupted line.
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: On input file: file:/home/username/folder/test3.csv
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: At position 0
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper:
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: Currently processing split:
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: Paths:/home/username/folder/test3.csv:0+12
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper:
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: This issue might not necessarily be caused by current input
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper: due to the batching nature of export.
17/04/10 09:36:28 ERROR mapreduce.TextExportMapper:
17/04/10 09:36:28 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Starting task: attempt_local2136897360_0001_m_000002_0
17/04/10 09:36:28 INFO mapred.Task:  Using ResourceCalculatorProcessTree : [ ]
17/04/10 09:36:28 INFO mapred.MapTask: Processing split: Paths:/home/username/folder/test3.csv:12+12
17/04/10 09:36:28 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false
17/04/10 09:36:28 INFO mapred.LocalJobRunner:
17/04/10 09:36:28 INFO mapred.Task: Task:attempt_local2136897360_0001_m_000002_0 is done. And is in the process of committing
17/04/10 09:36:28 INFO mapred.LocalJobRunner: map
17/04/10 09:36:28 INFO mapred.Task: Task 'attempt_local2136897360_0001_m_000002_0' done.
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Finishing task: attempt_local2136897360_0001_m_000002_0
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Starting task: attempt_local2136897360_0001_m_000003_0
17/04/10 09:36:28 INFO mapred.Task:  Using ResourceCalculatorProcessTree : [ ]
17/04/10 09:36:28 INFO mapred.MapTask: Processing split: Paths:/home/username/folder/test3.csv:24+12
17/04/10 09:36:28 INFO mapreduce.AutoProgressMapper: Auto-progress thread is finished. keepGoing=false
17/04/10 09:36:28 INFO mapred.LocalJobRunner:
17/04/10 09:36:28 INFO mapred.Task: Task:attempt_local2136897360_0001_m_000003_0 is done. And is in the process of committing
17/04/10 09:36:28 INFO mapred.LocalJobRunner: map
17/04/10 09:36:28 INFO mapred.Task: Task 'attempt_local2136897360_0001_m_000003_0' done.
17/04/10 09:36:28 INFO mapred.LocalJobRunner: Finishing task: attempt_local2136897360_0001_m_000003_0
17/04/10 09:36:28 INFO mapred.LocalJobRunner: map task executor complete.
17/04/10 09:36:28 WARN mapred.LocalJobRunner: job_local2136897360_0001
java.lang.Exception: java.io.IOException: Can't export data, please check failed map task logs
    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.io.IOException: Can't export data, please check failed map task logs
    at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:122)
    at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:39)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:146)
    at org.apache.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:64)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
    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$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Can't parse input data: 'id'
    at test3.__loadFromFields(test3.java:316)
    at test3.parse(test3.java:254)
    at org.apache.sqoop.mapreduce.TextExportMapper.map(TextExportMapper.java:89)
    ... 11 more
Caused by: java.lang.NumberFormatException: For input string: "id"
    at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
    at java.lang.Integer.parseInt(Integer.java:492)
    at java.lang.Integer.valueOf(Integer.java:582)
    at test3.__loadFromFields(test3.java:303)
    ... 13 more
17/04/10 09:36:29 INFO mapreduce.Job: Job job_local2136897360_0001 running in uber mode : false
17/04/10 09:36:29 INFO mapreduce.Job:  map 100% reduce 0%
17/04/10 09:36:29 INFO mapreduce.Job: Job job_local2136897360_0001 failed with state FAILED due to: NA
17/04/10 09:36:29 INFO mapreduce.Job: Counters: 15
    File System Counters
        FILE: Number of bytes read=673345391
        FILE: Number of bytes written=679694703
        FILE: Number of read operations=0
        FILE: Number of large read operations=0
        FILE: Number of write operations=0
    Map-Reduce Framework
        Map input records=2
        Map output records=2
        Input split bytes=388
        Spilled Records=0
        Failed Shuffles=0
        Merged Map outputs=0
        GC time elapsed (ms)=0
        Total committed heap usage (bytes)=2805989376
    File Input Format Counters
        Bytes Read=0
    File Output Format Counters
        Bytes Written=0
17/04/10 09:36:29 INFO mapreduce.ExportJobBase: Transferred 0 bytes in 5.4541 seconds (0 bytes/sec)
17/04/10 09:36:29 INFO mapreduce.ExportJobBase: Exported 2 records.
17/04/10 09:36:29 ERROR mapreduce.ExportJobBase: Export job failed!
17/04/10 09:36:29 ERROR tool.ExportTool: Error during export: Export job failed!

有什么想法还是我应该忽略？我不想在运行较大的作业时犯错并保持原样而遗漏一些东西。

更新 1

下面是没有空行和空格的.csv内容

这是 sqoop 之后的结果，没问题:

Answer 1

错误是由于文件中的 CSV header 引起的。 Sqoop 没有任何选项可以在将数据导出到 MySQL 时忽略 header 。在执行 sqoop-export 之前，您必须手动删除 header 。

Any idea or should I just ignore?

因为这只是一行，处理包含 header 的拆分的映射器会抛出异常，但它们不足以终止作业。谁喜欢在作业执行日志中看到异常。