Spotting Crashed Application

[Steve Holden]

Robert Rawlins - Think Blue wrote:
> Hello Guys,
> 
>  
> 
> I’ve got an application that I’ve written, and it sits in an embedded 
> system, from time to time the application will crash, I’m not quite sure 
> what’s causing this, but as we test it more and more we’ll grasp a 
> better understanding and fix the issues.
> 
>  
> 
> However, until then I need a quick solution which can spot the crash and 
> reboot the system. Is there any generic way of writing a separate 
> application that’ll spot the crash in my main application? If not then i 
> was thinking about having my core application log itself as ‘alive’ 
> every 5 minutes or so. My new ‘spotter’ application can check this log, 
> if it’s not been written too in say 6 minutes then the main app must 
> have crashed, and it can reboot.
> 
>  
> 
> Any suggestions on how best to handle this? Obviously finding the bug in 
> my main app is paramount, but a failsafe will never hurt.
> 
I don't know of any pre-written functionality, but I'd recommend using a 
  UDP socket for this. Let your application send a packet (say) every 30 
seconds and have the monitoring application restart it if it doesn't 
hear a packet for 90 seconds.

regards
  Steve
-- 
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