Hung Process

[Guest_imported]

Hi,

Does anyone know any unix command/ have any script ideas to see if a process has hung?

thanks,
Jon

 

[MikeLacey]

do a command like

ps -ef | grep process_name

and look at the amount of time the process is accumulating. A hung process will often accumulate a lot of processor time as it spins about.

Sometimes.... a hung process will not accumulate any time at all - they hang for wildly different reasons. Mike
________________________________________________________________

"Experience is the comb that Nature gives us, after we are bald."

Is that a haiku?
I never could get the hang
of writing those things.

 

[gillou]

I believe that for several OS, you have a command to display the activity for a process. On Sun, it's truss, on SGI, it's par and for the other i don't remember ...
You may see if there's no Read/write activity.
Good Luck,
Gilles

 

[Guest_imported]

Thanks Gilles, I'm using the truss command at the moment, if anyone has any other solutions please let me know....

Thanks,
Jon

 

[MikeLacey]

what is truss telling you? Mike
________________________________________________________________

"Experience is the comb that Nature gives us, after we are bald."

Is that a haiku?
I never could get the hang
of writing those things.

 

[Guest_imported]

Basically it's giving the processes read/writes, I'm thinking of perhaps redirecting this to a file & writing a loop to see if it's being appended to... This would let me know if it's hung or not.... A little crude perhaps, but should work...

 

[dobbyn]

Use "tail -f" to see if a file is being appeneded to.