[Run Service] Ensure `CreateRun` works expected

[machichima]

Need to fix CreateRun to work correctly

Missing functionality

• fillDefaultInputs: fill in default if no input provided

Response

Field	Expected	Presented?	Need implement?
run	Run	✅	❌
run.action	Action	✅	❌
run.action.id	ActionIdentifier	✅	❌
run.action.metadata	ActionMetadata	❌	✅
run.action.status	ActionStatus	❌	✅
run.action.status.phase	ActionPhase	❌	✅
run.action.status.start_time	Timestamp	❌	✅
run.action.status.end_time	optional Timestamp	❌	❌ (unavailable at run creation time)
run.action.status.attempts	uint32	❌	✅
run.action.status.cache_status	CatalogCacheStatus	❌	✅
run.action.status.duration_ms	optional uint64	❌	❌ (duration is not meaningful before execution progresses)

[runllm]

It could be possible that the missing functionality around fillDefaultInputs—filling in default values when no input is provided—is already validated in Flyte's backend logic. Test cases in the Flyte codebase show that if inputs are missing, the system fills them with default values from the launch plan, and errors are raised only if required inputs are missing or types mismatch. See examples in execution_validator_test.go and launch_plan_validator_test.go.

Though I'm not entirely certain, it might be that the fields you listed as missing in the run.action.status (such as phase, start_time, attempts, cache_status) are not present at run creation because the action has not yet started executing. The code and docs do not show these fields being set at creation time, which aligns with your table. Duration and end time are also not meaningful or available until execution progresses. Would you like a step-by-step breakdown of how default inputs are filled and when these status fields become available?

Sources:

• execution_validator_test.go
• launch_plan_validator_test.go

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[WangWang0226]

#take