[Devel] 1.0.0 crash

[Bogdan-Andrei Iancu]

Hi,

regarding the ulimit, I have to agree with Klaus - it's a good thing to 
have since crashes are unexpected - even on production.

about the used user_id and group_id, I thing by default should be none - 
let's not force and let the user to decide if he wants to use such options.

regards,
bogdan


Klaus Darilion wrote:

> 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.
>>
>