On Monday, May 8, 2023 at 6:36:13 AM UTC-7 Lisandro wrote:
Hey there!
I recently updated to Web2py Version
2.24.1-stable+timestamp.2023.03.23.05.07.17
It uses python 3.9.14, running in production serving around 60 requests per
second, using resources efficiently and running really smoothly :D
Since the update, I'm seeing this error sporadically:
*redis.exceptions.DataError:
Invalid input of type: 'NoneType'. Convert to a bytes, string, int or float
first.*
This is the traceback:
Traceback (most recent call last):
File "applications/eldia/compiled/models.db.py", line 113, in <module>
File "/var/www/medios/gluon/globals.py", line 979, in connect
row = table(record_id, unique_key=unique_key)
[...]
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 318, in read_response
raw = self._buffer.readline()
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 249, in readline
self._read_from_socket()
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 195, in _read_from_socket
raise ConnectionError(SERVER_CLOSED_CONNECTION_ERROR)
redis.exceptions.ConnectionError: Connection closed by server.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/var/www/medios/gluon/main.py", line 439, in wsgibase
serve_controller(request, response, session)
File "/var/www/medios/gluon/main.py", line 173, in serve_controller
run_models_in(environment)
File "/var/www/medios/gluon/compileapp.py", line 563, in run_models_in
restricted(ccode, environment, layer=model)
File "/var/www/medios/gluon/restricted.py", line 219, in restricted
exec(ccode, environment)
File "applications/eldia/compiled/models.db.py", line 116, in <module>
File "applications/eldia/compiled/models.db.py", line 47, in raise_error
gluon.http.HTTP: 500 INTERNAL SERVER ERROR
tripped while already falling, methinks
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/var/www/medios/gluon/main.py", line 455, in wsgibase
session._try_store_in_db(request, response)
File "/var/www/medios/gluon/globals.py", line 1254, in _try_store_in_db
record_id = table.insert(**dd)
File "/var/www/medios/gluon/contrib/redis_session.py", line 167, in insert
pipe.execute()
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/client.py",
line
2078, in execute
return conn.retry.call_with_retry(
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/retry.py", line
46, in call_with_retry
return do()
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/client.py",
line
2079, in <lambda>
lambda: execute(conn, stack, raise_on_error),
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/client.py",
line
1922, in _execute_transaction
all_cmds = connection.pack_commands(
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 895, in pack_commands
for chunk in self.pack_command(*cmd):
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 858, in pack_command
for arg in map(self.encoder.encode, args):
File
"/opt/virtualenvs/medios_py39/lib/python3.9/site-packages/redis/connection.py",
line 108, in encode
raise DataError(
redis.exceptions.DataError: Invalid input of type: 'NoneType'. Convert to a
bytes, string, int or float first.
This looks like it involves one of these being None:
dd = dict(locked=0,
client_ip=response.session_client,
modified_datetime=request.now.isoformat(),
session_data=session_pickled,
unique_key=unique_key)
but this seems to be in trying to clean up after the original issue.
It's not clear to me where or how the error happens. From what I see, I
understand that the problem is with redis session, but I can't figure out
where.
What I would investigate is the exception at the top of the list, which
means finding out why the socket was closed.
I run python 3.9.14 with virtualenv and Redis 4.3.5.
Any point or suggestion will be much appreciated.
Thanks!
Sorry, I'm not a redis expert, but in compound fractures, er, exceptions,
the first one to occur is where the problem started. Good luck!
/dps
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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