Keep Partial Migration Loads And Recover By Reset
Context
A migration can fail after some datasets have already committed.
Decision and Origin
A failed or cancelled run preserves committed loads; supported workspace reset clears loaded records and job mappings while retaining uploads, run history and designated configuration. The origin recorded above supplies the authority for this choice; implementation evidence supplies the limits described here.
Alternative Comparison
Compensate every dataset after failure: Import jobs do not offer the update rollback mechanism.
Load a staging workspace and copy it after success: The cited plan selects loading the destination while it remains in its loading state.
Consequences
Staff inspect partial results and choose whether to reset and reload.
The implementation limits reset to sandbox workspaces in implementation status and loading state.
A reset that fails partway leaves partial deletion and can be repeated.