I wrote a telegram bot on the aiogram framework. The bot worked fine for over a week, with no problems. The customer started complaining about the bot freezing. I downloaded the log file and saw a bunch of different TraceBacks. This situation has been happening for two days now. List of 3 TraceBacks, for example:
First
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 986, in _wrap_create_connection
return await self._loop.create_connection(*args, **kwargs) # type: ignore[return-value] # noqa
File "/usr/lib/python3.7/asyncio/base_events.py", line 959, in create_connection
raise exceptions[0]
File "/usr/lib/python3.7/asyncio/base_events.py", line 946, in create_connection
await self.sock_connect(sock, address)
File "/usr/lib/python3.7/asyncio/selector_events.py", line 464, in sock_connect
return await fut
File "/usr/lib/python3.7/asyncio/selector_events.py", line 469, in _sock_connect
sock.connect(address)
OSError: [Errno 101] Network is unreachable
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 139, in make_request
async with session.post(url, data=req, **kwargs) as response:
File "/usr/local/lib/python3.7/dist-packages/aiohttp/client.py", line 1138, in __aenter__
self._resp = await self._coro
File "/usr/local/lib/python3.7/dist-packages/aiohttp/client.py", line 536, in _request
req, traces=traces, timeout=real_timeout
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 542, in connect
proto = await self._create_connection(req, traces, timeout)
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 907, in _create_connection
_, proto = await self._create_direct_connection(req, traces, timeout)
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 1206, in _create_direct_connection
raise last_exc
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 1187, in _create_direct_connection
client_error=client_error,
File "/usr/local/lib/python3.7/dist-packages/aiohttp/connector.py", line 992, in _wrap_create_connection
raise client_error(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host api.telegram.org:443 ssl:default [Network is unreachable]
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py", line 385, in start_polling
allowed_updates=allowed_updates
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/bot.py", line 110, in get_updates
result = await self.request(api.Methods.GET_UPDATES, payload)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/base.py", line 232, in request
proxy=self.proxy, proxy_auth=self.proxy_auth, timeout=self.timeout, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 142, in make_request
raise exceptions.NetworkError(f"aiohttp client throws an error: {e.__class__.__name__}: {e}")
aiogram.utils.exceptions.NetworkError: Aiohttp client throws an error: ClientConnectorError: Cannot connect to host api.telegram.org:443 ssl:default [Network is unreachable]
Second
future: <Task finished coro=<Dispatcher._process_polling_updates() done, defined at /usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py:407> exception=TelegramAPIError('Gateway Timeout')>
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py", line 415, in _process_polling_updates
for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py", line 235, in process_updates
return await asyncio.gather(*tasks)
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/handler.py", line 116, in notify
response = await handler_obj.handler(*args, **partial_data)
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py", line 256, in process_update
return await self.message_handlers.notify(update.message)
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/handler.py", line 116, in notify
response = await handler_obj.handler(*args, **partial_data)
File "/home/koval_pavlo03/TokenSaleBot/handlers/admin_commands.py", line 152, in do_adm
await message.answer_document(open('logs.txt', 'rb'))
File "/usr/local/lib/python3.7/dist-packages/aiogram/types/message.py", line 733, in answer_document
reply_markup=reply_markup,
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/bot.py", line 708, in send_document
result = await self.request(api.Methods.SEND_DOCUMENT, payload, files)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/base.py", line 232, in request
proxy=self.proxy, proxy_auth=self.proxy_auth, timeout=self.timeout, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 140, in make_request
return check_result(method, response.content_type, response.status, await response.text())
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 128, in check_result
raise exceptions.TelegramAPIError(description)
aiogram.utils.exceptions.TelegramAPIError: Gateway Timeout
Third
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/aiogram/dispatcher/dispatcher.py", line 385, in start_polling
allowed_updates=allowed_updates
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/bot.py", line 110, in get_updates
result = await self.request(api.Methods.GET_UPDATES, payload)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/base.py", line 232, in request
proxy=self.proxy, proxy_auth=self.proxy_auth, timeout=self.timeout, **kwargs)
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 140, in make_request
return check_result(method, response.content_type, response.status, await response.text())
File "/usr/local/lib/python3.7/dist-packages/aiogram/bot/api.py", line 119, in check_result
exceptions.ConflictError.detect(description)
File "/usr/local/lib/python3.7/dist-packages/aiogram/utils/exceptions.py", line 140, in detect
raise err(cls.text or description)
aiogram.utils.exceptions.TerminatedByOtherGetUpdates: Terminated by other getupdates request; make sure that only one bot instance is running
01/21/2022 19:57:14 SSL error in data received
protocol: <asyncio.sslproto.SSLProtocol object at 0x7feef4858278>
transport: <_SelectorSocketTransport fd=9 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/usr/lib/python3.7/asyncio/sslproto.py", line 526, in data_received
ssldata, appdata = self._sslpipe.feed_ssldata(data)
File "/usr/lib/python3.7/asyncio/sslproto.py", line 207, in feed_ssldata
self._sslobj.unwrap()
File "/usr/lib/python3.7/ssl.py", line 767, in unwrap
return self._sslobj.shutdown()
On my computer everything works fine. The bot is hosted on Google Cloud Platform (Compute engine). I have already tried restarting the bot and the host machine – it did not help; the problem appeared again today. I also changed the bot token, also did not work. For the sake of completeness, below is a list of versions:
$ python3 --version Python 3.7.3 $ python3 -m pip show aiogram Name: aiogram Version: 2.18 Summary: Is a pretty simple and fully asynchronous framework for Telegram Bot API Home-page: https://github.com/aiogram/aiogram Author: Alex Root Junior Author-email: jroot.junior@gmail.com License: MIT Location: /usr/local/lib/python3.7/dist-packages Requires: aiohttp, Babel, certifi Required-by: $ python3 -m pip show aiohttp Name: aiohttp Version: 3.8.1 Summary: Async http client/server framework (asyncio) Home-page: https://github.com/aio-libs/aiohttp Author: Author-email: License: Apache 2 Location: /usr/local/lib/python3.7/dist-packages Requires: aiosignal, async-timeout, asynctest, attrs, charset-normalizer, frozenlist, multidict, typing-extensions, yarl Required-by: aiogram
UPD
Here you can see log file (Google Drive)
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Answer
The problem is that time on your host machine is different from world time.
I have noticed that Google Cloud compute engine doesn’t have any time synchronization services. That explains why the bot works well for some time, and then he starts catching tracebacks.