The PUT /nio (update) endpoints for iou, dynamips and cloud copied nio.filters from the request body but never copied nio.markers. So adding a marker (e.g. a project-level global definition) to an already-created link of these node types left nio.markers empty: no mark filter was installed on uBridge and no marker.match signal was emitted. vpcs/qemu/docker already set it; mirror them (getattr for the Union NIO types).
Fixed IOU node suspend API to return proper HTTP 405 Method Not Allowed
error instead of misleading 204 No Content response.
Changes:
- Added HTTPException import to iou_nodes.py
- Fixed suspend_iou_node route from /stop to /suspend (bug fix)
- Changed response from 204 No Content to 405 Method Not Allowed
- Added clear error message: "Suspend is not supported for IOU nodes"
This fix ensures clients receive explicit feedback when attempting to
suspend IOU nodes, which do not support suspend functionality.
Related issue: IOU nodes previously returned 404 when suspend was called
due to incorrect route registration.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
