Hi, this same error happened to me as well. My setup:
Django==1.3.1
gevent==0.13.6
greenlet==0.3.4
gunicorn==0.13.4
psycopg2==2.4.4
I use this function to make psycopg2 "green" (in the gunicorn config):
worker_class = "gevent"
def def_post_fork(server, worker):
from psyco_gevent import make_psycopg_green
make_psycopg_green()
worker.log.info("Made Psycopg Green")
post_fork = def_post_fork
This is making me worried of using the Gunicorn+Gevent+psycopg2 combo.
Cheers,
Daniel
On Friday, January 20, 2012 3:46:47 PM UTC+1, j_syk wrote:
>
> I was testing one my apps today with a form that features a drop-down
> field that initiates a json lookup for additional detail. You choose a
> location, it populates address fields. It's been working for weeks.
> Today, when I clicked an entry, the target detail field didn't change.
>
> I have debug off, so instantly I feel my phone buzz and I've been sent
> a http500 report e-mail with the following message-
>
>
> DatabaseError: execute cannot be used while an asynchronous query is
> underway
>
>
> I can't seem to reproduce the error, it's never happened before, and I
> haven't changed this piece of code for a while, so I doubt it's
> something new.
>
> I'm willing to write it off as a fluke, but at the same time I'd like
> to learn more and the search results on the topic don't seem good.
>
> Server setup is Django 1.3.1, Gunicorn 0.13 with geventlet processes,
> Nginx 0.7, postgres 8.4.8,
> That particular page was using Jquery and a .getJSON call to a json
> output produced by a django view which calls a basic query.
>
> What should I know about the "asynchronous query" error? Are there
> ways to prevent it? Should I be worried?
On Friday, January 20, 2012 3:46:47 PM UTC+1, j_syk wrote:
>
> I was testing one my apps today with a form that features a drop-down
> field that initiates a json lookup for additional detail. You choose a
> location, it populates address fields. It's been working for weeks.
> Today, when I clicked an entry, the target detail field didn't change.
>
> I have debug off, so instantly I feel my phone buzz and I've been sent
> a http500 report e-mail with the following message-
>
>
> DatabaseError: execute cannot be used while an asynchronous query is
> underway
>
>
> I can't seem to reproduce the error, it's never happened before, and I
> haven't changed this piece of code for a while, so I doubt it's
> something new.
>
> I'm willing to write it off as a fluke, but at the same time I'd like
> to learn more and the search results on the topic don't seem good.
>
> Server setup is Django 1.3.1, Gunicorn 0.13 with geventlet processes,
> Nginx 0.7, postgres 8.4.8,
> That particular page was using Jquery and a .getJSON call to a json
> output produced by a django view which calls a basic query.
>
> What should I know about the "asynchronous query" error? Are there
> ways to prevent it? Should I be worried?
On Friday, January 20, 2012 3:46:47 PM UTC+1, j_syk wrote:
>
> I was testing one my apps today with a form that features a drop-down
> field that initiates a json lookup for additional detail. You choose a
> location, it populates address fields. It's been working for weeks.
> Today, when I clicked an entry, the target detail field didn't change.
>
> I have debug off, so instantly I feel my phone buzz and I've been sent
> a http500 report e-mail with the following message-
>
>
> DatabaseError: execute cannot be used while an asynchronous query is
> underway
>
>
> I can't seem to reproduce the error, it's never happened before, and I
> haven't changed this piece of code for a while, so I doubt it's
> something new.
>
> I'm willing to write it off as a fluke, but at the same time I'd like
> to learn more and the search results on the topic don't seem good.
>
> Server setup is Django 1.3.1, Gunicorn 0.13 with geventlet processes,
> Nginx 0.7, postgres 8.4.8,
> That particular page was using Jquery and a .getJSON call to a json
> output produced by a django view which calls a basic query.
>
> What should I know about the "asynchronous query" error? Are there
> ways to prevent it? Should I be worried?
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