[SPARK-30235] Keeping compatibility with 2.4 external shuffle service regarding host local shuffle blocks reading

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Spark Core
• Assignee: Attila Zsolt Piros
• Reporter: Attila Zsolt Piros
• Created: 12/Dec/19 13:35
• Updated: 17/Dec/19 18:33
• Resolved: 17/Dec/19 18:33

Description

When `spark.shuffle.readHostLocalDisk.enabled` is true then a new message is used which is not supported by Spark 2.4.

Issue Links

• links to: GitHub Pull Request #26869