fix test failure

Author: gengliangwang

sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileFormatDataWriter.scala

@@ -73,7 +73,6 @@ abstract class FileFormatDataWriter(
    */
   def commit(): WriteTaskResult = {
     releaseResources()
-    committer.commitTask(taskAttemptContext)
     val summary = ExecutedWriteSummary(
       updatedPartitions = updatedPartitions.toSet,
       stats = statsTrackers.map(_.getFinalStats()))
@@ -108,6 +107,9 @@ class SingleDirectoryDataWriter(
   newOutputWriter()
 
   private def newOutputWriter(): Unit = {
+    recordsInFile = 0
+    releaseResources()
+
     val ext = description.outputWriterFactory.getFileExtension(taskAttemptContext)
     val currentPath = committer.newTaskTempFile(
       taskAttemptContext,
@@ -128,8 +130,6 @@ class SingleDirectoryDataWriter(
       assert(fileCounter < MAX_FILE_COUNTER,
         s"File counter $fileCounter is beyond max value $MAX_FILE_COUNTER")
 
-      recordsInFile = 0
-      releaseResources()
       newOutputWriter()
     }
 
@@ -208,6 +208,9 @@ class DynamicPartitionDataWriter(
    * @param bucketId the bucket which all tuples being written by this `OutputWriter` belong to
    */
   private def newOutputWriter(partitionValues: Option[InternalRow], bucketId: Option[Int]): Unit = {
+    recordsInFile = 0
+    releaseResources()
+
     val partDir = partitionValues.map(getPartitionPath(_))
     partDir.foreach(updatedPartitions.add)
 
@@ -249,21 +252,16 @@ class DynamicPartitionDataWriter(
         statsTrackers.foreach(_.newBucket(currentBucketId.get))
       }
 
-      recordsInFile = 0
       fileCounter = 0
-
-      releaseResources()
       newOutputWriter(currentPartionValues, currentBucketId)
     } else if (description.maxRecordsPerFile > 0 &&
       recordsInFile >= description.maxRecordsPerFile) {
       // Exceeded the threshold in terms of the number of records per file.
       // Create a new file by increasing the file counter.
-      recordsInFile = 0
       fileCounter += 1
       assert(fileCounter < MAX_FILE_COUNTER,
         s"File counter $fileCounter is beyond max value $MAX_FILE_COUNTER")
 
-      releaseResources()
       newOutputWriter(currentPartionValues, currentBucketId)
     }
     val outputRow = getOutputRow(record)