#7200 fix: propagate abort phase to sub-actions and fix WatchActionDetails race Pull request opened by AdilFayyaz Why are the changes needed? Aborting a parent action left sub-actions and group members stuck on their previous phase in the UI. Two independent gaps — missing DB cascade and a notification race — prevented the ABORTED state from reaching clients. What changes were proposed in this pull request? • AbortAction cascade: recursive CTE marks all non-terminal descendants ABORTED in a single round-trip, inserts abort events, and fires notifyActionUpdate for each • UpdateActionPhase abort event: inserts into action_events before notifying so WatchActionDetails phase transitions are always consistent with the action's phase • K8s informer DeleteFunc: unwraps tombstones and sets ABORTED for cascade-deleted CRs that carry no terminal condition; skips markTerminalStatusRecorded on already-deleted objects • WatchActionDetails subscription order: goroutine now subscribes before the initial DB fetch, closing the race window where cascade notifications fired before the handler was registered • AbortRun: returns child identifiers so the reconciler can push all non-terminal children for pod termination, not just the root How was this patch tested? • Abort a parent action with running K8s task sub-actions — confirm all sub-actions immediately show ABORTED in both the sidebar list and detail panel • Abort a group action — confirm group and all trace children update without requiring a page refresh • Abort with an active phase filter (e.g. ?status=RUNNING) — confirm sub-actions are updated before being removed from the filtered list (frontend fix in RunStore.ts) • Abort from CLI against a parent action — confirm children are cascade-aborted in DB even though the reconciler only deletes the parent CR • Run all unit tests Setup process Screenshots Check all the applicable boxes • I updated the documentation accordingly. • All new and existing tests passed. • All commits are signed-off. Related PRs Docs link •

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• #6583 • fix: propagate abort phase to sub-actions and fix WatchActionDetails race 👈 flyteorg/flyte