[IGNITE-13471] Execute user-defined compute jobs asynchronously when CompletionStage is returned

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: compute
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Unassigned
• Reporter: Pavel Tupitsyn
• Created: 22/Sep/20 08:50
• Updated: 22/Sep/20 08:50

Description

When user-defined Compute jobs (callables, runnables) return CompletionStage:

1. Wait for completion (in a non-blocking way if possible)
2. Extract the result and return to the initiator node
3. Construct completed CompletionStage with the result on the initiator node and return to the user code