open-webui/backend/open_webui
DrMelone eec14f1c00 fix: prevent STT from blocking the uvicorn event loop
The transcription endpoint was async but called the synchronous transcribe() function directly, blocking the single-threaded uvicorn event loop for the entire duration of inference. This caused all HTTP and WebSocket connections to stall for every user on the instance during STT processing.

- Add asyncio import

- Use async UploadFile.read() instead of synchronous file.file.read()

- Offload the blocking transcribe() call via asyncio.to_thread()

Closes #24169
2026-05-03 20:08:19 +02:00
..
data refac: mv backend files to /open_webui dir 2024-09-04 16:54:48 +02:00
internal chore: format 2026-04-24 18:48:21 +09:00
migrations refac 2026-04-24 18:20:10 +09:00
models chore: format 2026-04-24 18:48:21 +09:00
retrieval chore: format 2026-04-24 18:48:21 +09:00
routers fix: prevent STT from blocking the uvicorn event loop 2026-05-03 20:08:19 +02:00
socket refac 2026-04-17 13:29:51 +09:00
static chore: format 2026-04-19 22:45:54 +09:00
storage refac 2026-04-12 19:08:30 -05:00
test refac 2026-03-17 17:58:01 -05:00
tools refac 2026-04-24 18:06:19 +09:00
utils chore: format 2026-04-24 18:48:21 +09:00
__init__.py refac (#22987) 2026-03-24 15:41:26 -05:00
alembic.ini fix: Alembic CLI commands from failing 2025-08-15 04:17:47 -04:00
config.py feat: add PaddleOCR-vl loader support and implement retrieval router infrastructure (#23945) 2026-04-24 15:19:37 +09:00
constants.py chore: format 2026-04-14 17:27:31 -05:00
env.py refac 2026-04-24 16:23:28 +09:00
functions.py refac 2026-04-21 14:31:04 +09:00
main.py chore: format 2026-04-24 18:48:21 +09:00
tasks.py refac 2026-03-17 17:58:01 -05:00