[SPARK-43755] Spark Connect - decouple query execution from RPC handler

• Type: Story
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.5.0
• Fix Version/s: 3.5.0, 4.0.0
• Component/s: Connect
• Epic Link: connect-query-lifecycle
• Assignee: Juliusz Sompolski
• Reporter: Juliusz Sompolski
• Created: 23/May/23 16:10
• Updated: 19/Jul/23 00:52
• Resolved: 19/Jul/23 00:52

Description

Move actual query execution out of the RPC handler callback. This allows:

• (immediately) better control over query cancellation, by interrupting the execution thread.
• design changes to the RPC interface to allow different execution models than stream-push from server.

Issue Links

• links to: [Github] Pull Request #41315 (juliuszsompolski)