Candid wrote:
I am using web2py in my organization for internal applications. One of
the applications uses dedicated instance of web2py (v1.78.1) running
on dedicated ubuntu server. It connects to our SQL Server 2005
database via freetds. It runs with the following parameters:
python web2py.py -i ... -p ... -a ... -n 100 -q 100
The application uses connection pool with 50 connections.
Recently it has started freezing occasionally. The weird thing is that
the whole web2py server freezes and basically stops responding, so not
only you cannot access the app, you cannot even open the admin
console. Sometimes it starts working again after a few minutes,
sometimes I have to restart web2py.
I suspect it has something to with either web server threads not
getting released or databases connections not getting returned to the
pool (the latter would not explain why I cannot access admin console
though).
Has anyone had similar issues? Any suggestions on how to troubleshoot
the problem? Any input would be highly appreciated.
Greetings,
I have a web2py application running in 1.76.5 (from source, and haven't
had the chance to test the app in a more recent version of web2py).
The server is running vanilla Ubuntu 7.10 with all the patches up to
when support and security updates stopped.
Every now and again there is a "BUG: unable to handle kernel paging
request at virtual address b79b3000", always in the web2py Python
process, and web2py more or less hangs.
Actually XML-RPC calls timeout, web pages do not load, but the web2py
internal cron keeps working and generating more Python processes (each
of which also seems to hang).
I need to kill -9 the processes and start it again.
This did not happen at all during the previous 4 months of development
on the same server, and does not happen at all in another NetBSD-based
server that I have setup as a development/test environment.
For various other reasons a replacement server is being commissioned at
the moment, so restarting web2py every couple of days suffices for me
for now.
Rowdy
