On Feb 14, 2011, at 10:24 AM, Luis Díaz wrote:
> ready to investigate:
> 
> psycopg2 
> 
> http://wiki.postgresql.org/wiki/Using_psycopg2_with_PostgreSQL
> 
> The error could be caused by a bad query
> developed?
> 
> Could provide an app that generates the error?

I'm not using it myself; I'm not sure what triggers the error. I assume that 
there's more information earlier in this thread.

> 
> Díaz Luis
> TSU Analisis de Sistemas
> Universidad de Carabobo
> 
> Facultad de Odontología
> 
> 
> 
> 
> 
> 2011/2/14 Luis Díaz <diazluis2...@gmail.com>
> 
> I have installed:
> python-psycopg2/lenny update 2.0.7-4
> 
> Question:
> What is the funsion of psycopg2?
> 
> Díaz Luis
> TSU Analisis de Sistemas
> Universidad de Carabobo
> 
> Facultad de Odontología
> 
> 
> 
> 
> 
> 2011/2/14 Jonathan Lundell <jlund...@pobox.com>
> 
> On Feb 14, 2011, at 9:48 AM, Luis Díaz wrote:
>> 
>> Greetings.
>> 
>> I have tried to replicate the error and have had no
>> exicto.
> 
> Thanks. What version of psycopg2 are you using?
> 
>> 
>> Environment:
>> virtual server 1: debian ssl web2py
>> virtual server 2: debian ssl postgresql
>> 
>> Application:
>> simple queries and throwing 2
>> results.
>> 
>> tool:
>> Jmeter:
>> Threads 1200
>> 0.2 seconds upload
>> 
>> Díaz Luis
>> TSU Analisis de Sistemas
>> Universidad de Carabobo
>> 
>> Facultad de Odontología
>> 
>> 
>> 
>> 
>> 
>> 2011/2/12 Luis Díaz <diazluis2...@gmail.com>
>> Translation error .. sorry.
>> 
>> I could not ..
>> might wonder if any of you?
>> 
>> Díaz Luis
>> TSU Analisis de Sistemas
>> Universidad de Carabobo
>> 
>> Facultad de Odontología
>> 
>> 
>> 
>> 
>> 
>> 2011/2/12 Jonathan Lundell <jlund...@pobox.com>
>> On Feb 12, 2011, at 8:46 AM, ron_m wrote:
>> 
>> > FWIW I am on Ubuntu 10.04 with all patches applied and could not reproduce 
>> > the above problem when I tried. The version of python-psycopg2 from the 
>> > standard repository is 2.0.13. Not an iron-clad guarantee because 
>> > something else could be at play but at least a data point. I also drove 
>> > the application a lot harder from ab with 10x number of requests to try 
>> > and reproduce but still nothing.
>> >
>> > The fact it doesn't fail when processes=5 and threads=1 agrees well with 
>> > the GIL problem - without threads there is no need to hold the GIL.
>> 
>> Yes, it's a useful data point.
>> 
>> The best test will be to have an environment that actually fails with 
>> psycopg2 2.0.7, and have the failure disappear with an updated version (and 
>> no other changes), and to get the error back again with 2.0.7.
>> 
>> 
> 
> 
> 
> 


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