[SPARK-26264] It is better to add @transient to field 'locs' for class `ResultTask`.

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 3.0.0
• Component/s: Spark Core
• Assignee: Unassigned
• Reporter: liuxian
• Created: 04/Dec/18 10:21
• Updated: 07/Feb/19 18:06
• Resolved: 05/Dec/18 01:44

Description

The field 'locs' is only used in driver side  for class `ResultTask`, so it is not needed to serialize  when sending the `ResultTask`  to executor.

Although it's not very big, it's very frequent, so we can add` transient` for it  like `ShuffleMapTask`

 

Issue Links

• links to: [Github] Pull Request #23216 (10110346)