I expect to receive responses from the bedrock models, but occasionally do not.
Actual Behavior
I am occasionally getting a hang when I try to talk to the model, where I don't get a response and instead just the grey loading boxes, with errors from the docker container.
Steps to Reproduce
No specific pattern, happens intermittently, but frequently. Usually after a period of time of inactivity, but not always.
Logs & Screenshots
2025-03-24 21:17:36.826 | ERROR | asyncio.runners:run:120 - Task exception was never retrieved
future: <Task finished name='Task-6229' coro=<process_chat_response.<locals>.post_response_handler() done, defined at /venv/lib/python3.11/site-packages/open_webui/utils/middleware.py:1114> exception=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data for satisfy transfer length header.'>")> - {}
Traceback (most recent call last):
File "/venv/lib/python3.11/site-packages/aiohttp/client_proto.py", line 92, in connection_lost
uncompleted = self._parser.feed_eof()
│ └ None
└ <aiohttp.client_proto.ResponseHandler object at 0x7f74f58dfb60>
File "aiohttp/_http_parser.pyx", line 508, in aiohttp._http_parser.HttpParser.feed_eof
raise TransferEncodingError(
└ <class 'aiohttp.http_exceptions.TransferEncodingError'>
aiohttp.http_exceptions.TransferEncodingError: 400, message:
Not enough data for satisfy transfer length header.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
> File "/venv/lib/python3.11/site-packages/open_webui/utils/middleware.py", line 1719, in post_response_handler
await stream_body_handler(response)
│ └ <starlette.responses.StreamingResponse object at 0x7f74f5963250>
└ <function process_chat_response.<locals>.post_response_handler.<locals>.stream_body_handler at 0x7f74f530b880>
File "/venv/lib/python3.11/site-packages/open_webui/utils/middleware.py", line 1471, in stream_body_handler
async for line in response.body_iterator:
│ └ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
└ <starlette.responses.StreamingResponse object at 0x7f74f5963250>
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 52, in __anext__
rv = await self.read_func()
│ └ <member 'read_func' of 'AsyncStreamIterator' objects>
└ <aiohttp.streams.AsyncStreamIterator object at 0x7f74f652ff10>
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 352, in readline
return await self.readuntil()
│ └ <function StreamReader.readuntil at 0x7f76140cf600>
└ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 386, in readuntil
await self._wait("readuntil")
│ └ <function StreamReader._wait at 0x7f76140cf4c0>
└ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 347, in _wait
await waiter
└ <Future finished exception=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not e...
aiohttp.client_exceptions.ClientPayloadError: Response payload is not completed: <TransferEncodingError: 400, message='Not enough data for satisfy transfer length header.'>
...
2025-03-24 21:21:05.626 | ERROR | aiohttp.client:__del__:443 - Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f74f5975a50> - {}
Additional Information
No response
Originally created by @poonesh on GitHub (Mar 24, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/12021
### Check Existing Issues
- [x] I have searched the existing issues and discussions.
- [x] I am using the latest version of Open WebUI.
### Installation Method
Pip Install
### Open WebUI Version
v0.5.20
### Ollama Version (if applicable)
_No response_
### Operating System
ubuntu 22.04
### Browser (if applicable)
_No response_
### Confirmation
- [x] I have read and followed all instructions in `README.md`.
- [x] I am using the latest version of **both** Open WebUI and Ollama.
- [x] I have included the browser console logs.
- [x] I have included the Docker container logs.
- [x] I have listed steps to reproduce the bug in detail.
### Expected Behavior
I have set up openwebui on EKS alongside bedrock-access-gateway following the instructions here: https://docs.openwebui.com/tutorials/integrations/amazon-bedrock
I expect to receive responses from the bedrock models, but occasionally do not.
### Actual Behavior
I am occasionally getting a hang when I try to talk to the model, where I don't get a response and instead just the grey loading boxes, with errors from the docker container.
### Steps to Reproduce
No specific pattern, happens intermittently, but frequently. Usually after a period of time of inactivity, but not always.
### Logs & Screenshots
```
2025-03-24 21:17:36.826 | ERROR | asyncio.runners:run:120 - Task exception was never retrieved
future: <Task finished name='Task-6229' coro=<process_chat_response.<locals>.post_response_handler() done, defined at /venv/lib/python3.11/site-packages/open_webui/utils/middleware.py:1114> exception=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data for satisfy transfer length header.'>")> - {}
Traceback (most recent call last):
File "/venv/lib/python3.11/site-packages/aiohttp/client_proto.py", line 92, in connection_lost
uncompleted = self._parser.feed_eof()
│ └ None
└ <aiohttp.client_proto.ResponseHandler object at 0x7f74f58dfb60>
File "aiohttp/_http_parser.pyx", line 508, in aiohttp._http_parser.HttpParser.feed_eof
raise TransferEncodingError(
└ <class 'aiohttp.http_exceptions.TransferEncodingError'>
aiohttp.http_exceptions.TransferEncodingError: 400, message:
Not enough data for satisfy transfer length header.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
> File "/venv/lib/python3.11/site-packages/open_webui/utils/middleware.py", line 1719, in post_response_handler
await stream_body_handler(response)
│ └ <starlette.responses.StreamingResponse object at 0x7f74f5963250>
└ <function process_chat_response.<locals>.post_response_handler.<locals>.stream_body_handler at 0x7f74f530b880>
File "/venv/lib/python3.11/site-packages/open_webui/utils/middleware.py", line 1471, in stream_body_handler
async for line in response.body_iterator:
│ └ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
└ <starlette.responses.StreamingResponse object at 0x7f74f5963250>
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 52, in __anext__
rv = await self.read_func()
│ └ <member 'read_func' of 'AsyncStreamIterator' objects>
└ <aiohttp.streams.AsyncStreamIterator object at 0x7f74f652ff10>
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 352, in readline
return await self.readuntil()
│ └ <function StreamReader.readuntil at 0x7f76140cf600>
└ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 386, in readuntil
await self._wait("readuntil")
│ └ <function StreamReader._wait at 0x7f76140cf4c0>
└ <StreamReader e=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not enough data ...
File "/venv/lib/python3.11/site-packages/aiohttp/streams.py", line 347, in _wait
await waiter
└ <Future finished exception=ClientPayloadError("Response payload is not completed: <TransferEncodingError: 400, message='Not e...
aiohttp.client_exceptions.ClientPayloadError: Response payload is not completed: <TransferEncodingError: 400, message='Not enough data for satisfy transfer length header.'>
...
2025-03-24 21:21:05.626 | ERROR | aiohttp.client:__del__:443 - Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x7f74f5975a50> - {}
```
### Additional Information
_No response_
GiteaMirror
added the bug label 2026-05-05 17:09:01 -05:00
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Originally created by @poonesh on GitHub (Mar 24, 2025).
Original GitHub issue: https://github.com/open-webui/open-webui/issues/12021
Check Existing Issues
Installation Method
Pip Install
Open WebUI Version
v0.5.20
Ollama Version (if applicable)
No response
Operating System
ubuntu 22.04
Browser (if applicable)
No response
Confirmation
README.md.Expected Behavior
I have set up openwebui on EKS alongside bedrock-access-gateway following the instructions here: https://docs.openwebui.com/tutorials/integrations/amazon-bedrock
I expect to receive responses from the bedrock models, but occasionally do not.
Actual Behavior
I am occasionally getting a hang when I try to talk to the model, where I don't get a response and instead just the grey loading boxes, with errors from the docker container.
Steps to Reproduce
No specific pattern, happens intermittently, but frequently. Usually after a period of time of inactivity, but not always.
Logs & Screenshots
Additional Information
No response