[SPARK-27090] Removing old LEGACY_DRIVER_IDENTIFIER ("<driver>")

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Spark Core
• Labels: release-notes
• Target Version/s: 3.0.0
• Docs Text: The executor ID for the driver has been "driver" rather than "<driver>" since Spark 1.5. Spark 3 no longer uses or recognizes this ID for the driver.
• Assignee: Shivu Sondur
• Reporter: Attila Zsolt Piros
• Created: 07/Mar/19 20:37
• Updated: 12/Mar/19 18:32
• Resolved: 12/Mar/19 18:30

Description

For legacy reasons LEGACY_DRIVER_IDENTIFIER was checked for a few places along with the new DRIVER_IDENTIFIER ("driver") to decided whether a driver is running or an executor.

The new DRIVER_IDENTIFIER ("driver") was introduced in spark version 1.4. So I think we have a chance to get rid of  the LEGACY_DRIVER_IDENTIFIER.

Issue Links

• links to: GitHub Pull Request #24026