Exception with pool

[Reonaydo]

Hello!
I used connection pool to reuse connections. All was ok.
But after some time(about 24 hours) I get exception "index out of range" on each second request.
Also rollback also throw exception.
Here traceback:

Aug 24 15:20:18 justinstalledpanel python[930]: Traceback (most recent call last):                                                                                                                                                       
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain/app.py", line 86, in create_domain                                                                                                                             
Aug 24 15:20:18 justinstalledpanel python[930]: if (yield from is_record_exists(name, conn)):                                                                                                                                            
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain/app.py", line 48, in is_record_exists                                                                                                                          
Aug 24 15:20:18 justinstalledpanel python[930]: yield from cur.execute(query, (name,))                                                                                                                                                   
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/cursors.py", line 238, in execute                                                                                    
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self._query(query)                                                                                                                                                            
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/cursors.py", line 459, in _query                                                                                     
Aug 24 15:20:18 justinstalledpanel python[930]: yield from conn.query(q)                                                                                                                                                                 
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 377, in query                                                                                   
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self._read_query_result(unbuffered=unbuffered)                                                                                                                                
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 518, in _read_query_result                                                                      
Aug 24 15:20:18 justinstalledpanel python[930]: yield from result.read()                                                                                                                                                                 
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 736, in read
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self._read_result_packet(first_packet)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 806, in _read_result_packet
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self._get_descriptions()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 889, in _get_descriptions
Aug 24 15:20:18 justinstalledpanel python[930]: FieldDescriptorPacket)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 499, in _read_packet
Aug 24 15:20:18 justinstalledpanel python[930]: packet = packet_type(buff, self._encoding)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/pymysql/connections.py", line 382, in __init__
Aug 24 15:20:18 justinstalledpanel python[930]: self.__parse_field_descriptor(encoding)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/pymysql/connections.py", line 390, in __parse_field_descriptor
Aug 24 15:20:18 justinstalledpanel python[930]: self.db = self.read_length_coded_string()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/pymysql/connections.py", line 331, in read_length_coded_string
Aug 24 15:20:18 justinstalledpanel python[930]: length = self.read_length_encoded_integer()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/pymysql/connections.py", line 312, in read_length_encoded_integer
Aug 24 15:20:18 justinstalledpanel python[930]: c = self.read_uint8()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/pymysql/connections.py", line 282, in read_uint8
Aug 24 15:20:18 justinstalledpanel python[930]: result = self._data[self._position]
Aug 24 15:20:18 justinstalledpanel python[930]: IndexError: index out of range
Aug 24 15:20:18 justinstalledpanel python[930]: During handling of the above exception, another exception occurred:
Aug 24 15:20:18 justinstalledpanel python[930]: Traceback (most recent call last):
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiohttp/server.py", line 266, in start
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self.handle_request(message, payload)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiohttp/web.py", line 90, in handle_request
Aug 24 15:20:18 justinstalledpanel python[930]: resp = yield from handler(request)
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain/app.py", line 41, in middleware
Aug 24 15:20:18 justinstalledpanel python[930]: return (yield from handler(request))
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain/app.py", line 96, in create_domain
Aug 24 15:20:18 justinstalledpanel python[930]: yield from conn.rollback()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 327, in rollback
Aug 24 15:20:18 justinstalledpanel python[930]: yield from self._read_ok_packet()
Aug 24 15:20:18 justinstalledpanel python[930]: File "/var/www/autodomain-venv/lib/python3.4/site-packages/aiomysql/connection.py", line 298, in _read_ok_packet
Aug 24 15:20:18 justinstalledpanel python[930]: raise OperationalError(2014, "Command Out of Sync")
Aug 24 15:20:18 justinstalledpanel python[930]: pymysql.err.OperationalError: (2014, 'Command Out of Sync')

[jettify]

Hi
could you specify: aimysql, pymysql and python versions. This issue should be solved in master I will do release to PyPI very soon.

[Reonaydo]

Hello!

~# python3 -V
Python 3.4.2

~# pip list
aiohttp (0.21.6)
aiomysql (0.0.7)
asyncio (3.4.3)
chardet (2.3.0)
envparse (0.2.0)
pip (1.5.6)
PyMySQL (0.6.7)
setuptools (5.5.1)

[jettify]

Could you test recent version? Issue should be fixed.

[Reonaydo]

About 2 days without errors. It seems that issue fixed. Thank you!

[jettify]

Thanks for letting us know!

On Tue, 30 Aug 2016 at 07:10 Leonid Popov notifications@github.com wrote:

About 2 days without errors. It seems that issue fixed. Thank you!

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