[SPARK-27622] Avoid the network when block manager fetches disk persisted RDD blocks from the same host

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: Block Manager, Spark Core
• Assignee: Attila Zsolt Piros
• Reporter: Attila Zsolt Piros
• Created: 02/May/19 11:26
• Updated: 17/May/20 18:20
• Resolved: 25/Jun/19 14:36

Description

Currently fetching blocks always uses the network even when the two block managers are running on the same host.

Issue Links

• is depended upon by: SPARK-27651 Avoid the network when block manager fetches shuffle blocks from the same host
• links to: GitHub Pull Request #24554