[SPARK-21283] FileOutputStream should be created as append mode

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.3.0
• Fix Version/s: 2.3.0
• Component/s: Spark Core
• Assignee: liuxian
• Reporter: liuxian
• Created: 03/Jul/17 04:11
• Updated: 04/Jul/17 01:17
• Resolved: 04/Jul/17 01:17

Description

`FileAppender` is used to write `stderr` and `stdout` files in `ExecutorRunner`.
But before writing `ErrorStream` into the the `stderr` file, the header information has been written into ,if FileOutputStream is not created as append mode, the header information will be lost

Issue Links

• links to: [Github] Pull Request #18507 (10110346)