Parquet file in invalid state while writing to S3 from EMR

I'm writing parquet to S3 from Spark 1.6.1 on EMR. And when it got to the last few files to write to S3, I received this stacktrace in the log with no other errors before or after it. It's very consistent. This particular batch keeps erroring the same way.

```
2016-06-10 01:46:05,282] WARN org.apache.spark.scheduler.TaskSetManager [task-result-getter-2hread] - Lost task 3737.0 in stage 2.0 (TID 10585, ip-172-16-96-32.ec2.internal): org.apache.spark.SparkException: Task failed while writing rows.
at org.apache.spark.sql.execution.datasources.DynamicPartitionWriterContainer.writeRows(WriterContainer.scala:414)
at org.apache.spark.sql.execution.datasources.InsertIntoHadoopFsRelation$$anonfun$run$1$$anonfun$apply$mcV$sp$3.apply(InsertIntoHadoopFsRelation.scala:150)
at org.apache.spark.sql.execution.datasources.InsertIntoHadoopFsRelation$$anonfun$run$1$$anonfun$apply$mcV$sp$3.apply(InsertIntoHadoopFsRelation.scala:150)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: The file being written is in an invalid state. Probably caused by an error thrown previously. Current state: COLUMN
at org.apache.parquet.hadoop.ParquetFileWriter$STATE.error(ParquetFileWriter.java:146)
at org.apache.parquet.hadoop.ParquetFileWriter$STATE.startBlock(ParquetFileWriter.java:138)
at org.apache.parquet.hadoop.ParquetFileWriter.startBlock(ParquetFileWriter.java:195)
at org.apache.parquet.hadoop.InternalParquetRecordWriter.flushRowGroupToStore(InternalParquetRecordWriter.java:153)
at org.apache.parquet.hadoop.InternalParquetRecordWriter.close(InternalParquetRecordWriter.java:113)
at org.apache.parquet.hadoop.ParquetRecordWriter.close(ParquetRecordWriter.java:112)
at org.apache.spark.sql.execution.datasources.parquet.ParquetOutputWriter.close(ParquetRelation.scala:101)
at org.apache.spark.sql.execution.datasources.DynamicPartitionWriterContainer.writeRows(WriterContainer.scala:405)
... 8 more
```

**Reporter**: [Peter Halliday](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=hoangelos)

_{**Note**: *This issue was originally created as [PARQUET-632](https://issues.apache.org/jira/browse/PARQUET-632). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*}

Inizia dai percorsi di ParquetFileWriter.java, InternalParquetRecordWriter.java e WriterContainer.scala di Spark indicati nello stack trace. Riproduci la scrittura di file Parquet su S3 da parte di Spark 1.6.1-on-EMR e traccia il fallimento precedente che lascia il writer nello stato COLUMN; il lavoro è completo quando sono state identificate una causa riproducibile e una correzione verificata oppure una diagnosi precisa.

Scritto dal modello di indicizzazione a partire dal testo della issue.