Process crash with no reason

[gil.shinar at gmail.com]

On Jan 27, 5:00 pm, Philip Semanchuk <phi... at semanchuk.com> wrote:
> On Jan 27, 2009, at 7:00 AM, gil.shi... at gmail.com wrote:
>
>
>
> > On Jan 26, 8:40 pm, Philip Semanchuk <phi... at semanchuk.com> wrote:
> >> On Jan 26, 2009, at 1:13 PM, gil.shi... at gmail.com wrote:
>
> >>> Hi All,
>
> >>> I'm running a program that is acting as a nice interface to sybase'
> >>> replication server. The program is using the cherrypy web service  
> >>> for
> >>> the GUI. The process is crashing every few days with no reason. In  
> >>> the
> >>> log I can see INFO and DEBUG (No ERROR) log lines and I do not get  
> >>> any
> >>> TraceBack python's message. This program is running on solaris 9
> >>> machine.
> >>> Where can I see or what can I do in order to find out what causes  
> >>> the
> >>> process to crash?
> >>> I have tried simulating a "traceBack" message and I could see this
> >>> traceback message in one of the log files I'm using. When the  
> >>> process
> >>> crashes without my help, I don't have a clue.
> >>> Let me know if you need any other info
>
> >> Although Python isn't immune to fatal errors like you describe, I'd
> >> immediately suspect a 3rd-party module instead, esp. one written in C
> >> or C++. Are you using anything like that?
>
> > No I do not.
>
> But you're using CherryPy, aren't you? And as Tim Golden pointed out,  
> you're probably using another 3rd party lib to talk to Sybase. ISTR  
> that CherryPy is written in pure Python but if you have a database  
> adapter lib it probably isn't.
>
> > Is there a way to monitor who had "killed" my process?
>
> That's more of a Solaris question than a Python one, and I don't know  
> much about Solaris. Is there a system log where Solaris records when &  
> why it has killed errant processes?

Yes I am using CherryPy. One of the developers I'm working with thinks
it is a cherrypy issue. Our python process has nothing to do if
cherrypy is stuck or down. But still, it is strange that there are no
leftovers from the crashed process.
Solaris has system logs that has nothing in them about this process.

Any other suggestion will be great.

Thanks