[Devel] 1.0.0 crash

[Klaus Darilion]

Considering this case:
openser was running fine for 2-3 months. Suddenly a crash, we can't fix 
it as I do not have a core dump. Thus, we have to wait again 2-3 months 
for another crash and the same bug will maybe cause outages at other 
sites too.

regards
klaus

Dan Pascu wrote:
> On Monday 30 January 2006 15:14, Klaus Darilion wrote:
> 
>>Bogdan-Andrei Iancu wrote:
>>
>>>Klaus Darilion wrote:
>>>
>>>>Bogdan-Andrei Iancu wrote:
>>>>
>>>>>Hi,
>>>>>
>>>>>also be sure to have the permission to generate core. Do "ulimit -c
>>>>>unlimited".
>>
>>Why not having "ulimit -c unlimited" and PARAMS="-P $PIDFILE -u openser
>>-g openser -w /tmp" in the default startup script? We would get lots
>>more cordump to analyze.
> 
> 
> I think the startup script should come in a form that is suitable for 
> using the proxy on a production platform, not for debugging.
> I personally do not want to edit the startup script everytime I install 
> the proxy to remove options from it because they are meant for debugging 
> which I don't need, except on rare occasions when I can manually add them 
> for the moment until I fix the problem.
> 
> A better idea would be to include some configuration file from the startup 
> script and in that configuration file we can have various options 
> defined. something like:
> 
> DEFAULTS=/etc/defaults/openser
> if [ -f $DEFAULTS ]; then
>  . $DEFAULTS
> fi
> 
> then we can have conditionals:
> 
> PARAMS="-P $PIDFILE -m $MEMORY -u $USER -g $GROUP"
> 
> if [ $DEBUG = "yes" ]; then
>    ulimit -c unlimited
>    PARAMS = "$PARAMS -w /tmp"
> fi
> 
> This approach would also help to avoid the need to edit the startup script 
> to change things like amount of memory, user/group to run as, ...
> Instead one would only have to edit the defaults file
> 
> P.S.
> For a core file to be truly useful, the program should be compiled with 
> -O0 (i.e. no optimizations). Else precious information may not be 
> available to the debugger, so someone willing to get backtraces from 
> openser crashes has to do a bit more than just set the core limit size 
> and the directory where to write them.
>