LuciferYang commented on a change in pull request #33628:
URL: https://github.com/apache/spark/pull/33628#discussion_r682437668



##########
File path: 
core/src/main/scala/org/apache/spark/storage/DiskBlockObjectWriter.scala
##########
@@ -262,6 +262,27 @@ private[spark] class DiskBlockObjectWriter(
     file
   }
 
+  /**
+   * Reverts write metrics that haven't been committed yet and delete the file 
held
+   * by current `DiskBlockObjectWriter`. Callers should invoke this function 
when there
+   * are runtime exceptions in file writing process and the file is no longer 
needed.
+   */
+  def deleteHeldFile(): Unit = {

Review comment:
       ok




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