What could be causing this error and how can i mak...
# ask-ai
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What could be causing this error and how can i make sure it never happens again 2025-08-14 224911,043 - ERROR livekit.agents - worker failed Traceback (most recent call last): File "C:\Program Files\Python313\Lib\asyncio\tasks.py", line 507, in wait_for return await fut ^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\ipc\channel.py", line 47, in arecv_message return _read_message(await dplx.recv_bytes(), messages) ^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\utils\aio\duplex_unix.py", line 35, in recv_bytes len_bytes = await self._reader.readexactly(4) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Python313\Lib\asyncio\streams.py", line 769, in readexactly await self._wait_for_data('readexactly') File "C:\Program Files\Python313\Lib\asyncio\streams.py", line 539, in _wait_for_data await self._waiter asyncio.exceptions.CancelledError The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\cli\_run.py", line 79, in _worker_run await worker.run() File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\worker.py", line 402, in run await self._inference_executor.initialize() File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\ipc\supervised_proc.py", line 169, in initialize init_res = await asyncio.wait_for( ^^^^^^^^^^^^^^^^^^^^^^^ ...<2 lines>... ) ^ File "C:\Program Files\Python313\Lib\asyncio\tasks.py", line 506, in wait_for async with timeouts.timeout(timeout): ~~~~~~~~~~~~~~~~^^^^^^^^^ File "C:\Program Files\Python313\Lib\asyncio\timeouts.py", line 116, in aexit raise TimeoutError from exc_val TimeoutError 2025-08-14 224911,055 - ERROR livekit.agents - Error in _read_ipc_task Traceback (most recent call last): File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\utils\aio\duplex_unix.py", line 35, in recv_bytes len_bytes = await self._reader.readexactly(4) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Program Files\Python313\Lib\asyncio\streams.py", line 767, in readexactly raise exceptions.IncompleteReadError(incomplete, n) asyncio.exceptions.IncompleteReadError: 0 bytes read on a total of 4 expected bytes The above exception was the direct cause of the following exception: Traceback (most recent call last): File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\utils\log.py", line 16, in async_fn_logs return await fn(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\cli\watcher.py", line 120, in _read_ipc_task msg = await channel.arecv_message(self._pch, proto.IPC_MESSAGES) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\ipc\channel.py", line 47, in arecv_message return _read_message(await dplx.recv_bytes(), messages) ^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\User\AppData\Roaming\Python\Python313\site-packages\livekit\agents\utils\aio\duplex_unix.py", line 43, in recv_bytes raise DuplexClosed() from e livekit.agents.utils.aio.duplex_unix.DuplexClosed
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Thanks for reaching out, David. I'm an AI assistant and I'm here to help. Give me a moment while I research this topic.
Hey there! It looks like you're running into those pesky 'worker failed' and 'TimeoutError' messages. They can pop up for a few reasons, so let’s walk through some common causes and easy fixes together: • Connection Issues: Double-check that your
wsURL
,
apiKey
, and
apiSecret
are all set up correctly. Sometimes, a small typo or network hiccup can cause these errors. • Load Threshold Exceeded: Take a peek at your worker's load settings. The default production threshold is 0.7, but feel free to tweak it based on what your workload looks like. Also, keep an eye on CPU usage and adjust
num_idle_processes
to help avoid overloads. • Timeout Errors: If 7.5 seconds for
AssignmentTimeout
feels too tight, try increasing it a bit. Adding retry logic with exponential backoff can also help smooth out those temporary glitches. • Error Handling: It’s a good idea to wrap your code in
try-except
blocks to catch errors like
APIError
,
WorkerError
, and
TimeoutError
. For speech-to-text services, having fallback adapters and recovery strategies can be a real lifesaver. • Network and Server Checks: Make sure your LiveKit server is reachable and that there aren’t any firewall or proxy issues blocking things. Using the worker's HTTP server health checks can give you a quick status update on availability. I hope these tips help clear things up! If you want to dive deeper into any part or need a hand with specific settings, just let me know—I’m here to help.