#24549: Django with Oracle backend - Application gets killed very often in
Ubuntu
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Reporter: rajmohanh | Owner: nobody
Type: Bug | Status: new
Component: Database layer (models, ORM) | Version: 1.6
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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Hi,
Our system is an application which runs on Ubuntu 14.04.2 LTS/ Apache /
Django / Oracle / cx_Oracle.
The application gets killed very often, as many requests are sent to the
application. We have tried our level best to overcome this issue, but we
couldn't. After debugging, we found that it is happening due to DB
Connection Issues.
The same issue can be seen in the development server also - as given below
{{{
[29/Mar/2015 11:47:17] "POST /*/ HTTP/1.1" 200 24632
[29/Mar/2015 11:47:17] "POST /*/ HTTP/1.1" 200 24632
Killed
(env)rajmohan@o:~/src$ ==
}}}
We could reproduce this problem by running the following code in
python manage.py shell
{{{
import threading
class MyThread(threading.Thread):
def run(self):
name = User.objects.all().first().username
for i in range(90):
th = MyThread()
th.start()
}}}
This will kill the application as -
In [4]: Killed
This issue is there in Apache Server also.
Please note that this happens only in Oracle version - In sqlite there are
absolutely no issues.
The same issue does not happen on Windows. Only in our linux boxes.
We tried connection pooling etc, but that didn't solve the problem. Please
let me know whether we are doing something very wrong?
--
Ticket URL: <https://code.djangoproject.com/ticket/24549>
Django <https://code.djangoproject.com/>
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