unsloth/studio/backend/core
Daniel Han 8ba46b566a
Studio: close switch/cancel races during model load (#6918)
Fix six race conditions when a user switches or cancels a model while a
previous load or generation is still in flight, across the inference
orchestrator and the /load and /unload routes:

- Cancel an in-flight generation on a safetensors/MLX model switch and
  serialize unload with load under the inference lifecycle gate.
- Cancel an in-flight load off the lifecycle gate so a Stop-loading
  cancel does not wait out the multi-minute load; guard the dispatched
  mailbox against a racing unload.
- Recheck the loading marker after spawn and again after the load
  response before publishing, so a load cancelled mid-flight is reaped
  instead of going live.
- Discard the loading marker before tearing the subprocess down in
  cancel_load, closing a spawn-after-cancel window and an orphaned
  compare-mode dispatcher during unload.
- Match the unload target before canceling an in-flight GGUF load and
  add an off-gate fast path for the still-loading GGUF case.
- Run the Unsloth unload off the event loop so a paused SSE stream
  holding _gen_lock cannot block the loop.

Adds studio/backend/tests/test_orchestrator_unload_cancel.py covering
the unload/cancel/switch race paths.
2026-07-06 19:43:15 -07:00
..
data_recipe Studio: harden background consumer loops and streaming paths against silent UI freezes (#6653) 2026-06-26 03:31:33 -07:00
export Studio: multi-select export formats, portable FP8/INT8, GGUF LoRA, and source parity (#6767) 2026-07-03 08:25:10 -07:00
inference Studio: close switch/cancel races during model load (#6918) 2026-07-06 19:43:15 -07:00
rag Studio: customizable RAG embedding model with HF search, settings tab reorganization (#6800) 2026-07-02 05:26:33 -07:00
training Add MLX-aware public Unsloth trainer API (#6462) 2026-07-02 23:02:26 +01:00
__init__.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
_torchao_stub.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
import_guards.py Studio: self-heal unsloth namespace shadows; clearer failed-load messages (#6532) 2026-06-21 22:43:31 -07:00
tool_healing.py Studio: parse Mistral [TOOL_CALLS] and rehearsal tool-call shapes (#5704) 2026-07-06 18:52:13 -07:00