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Zombie process utilising 99% of the CPU....

 
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Regular Advisor

Zombie process utilising 99% of the CPU....

Hello Folks,

I have an issue with one of my hp-ux box, the CPU utilisation is about 99%. So many zombie process are there like some 500 processes.

root 221280 762056 1 0:00
root 225392 762056 0 0:00
root 233570 762056 0 0:00
root 254138 762056 1 0:00
root 270514 762056 0 0:00
root 299228 762056 1 0:00
root 307324 762056 0 0:00
root 319612 762056 1 0:00
root 344286 762056 0 0:00
root 368824 762056 0 0:00
root 377002 762056 0 0:00
root 381090 762056 1 0:00
root 385140 762056 0 0:00
root 393332 762056 0 0:00
root 397400 762056 1 0:00
root 401544 762056 0 0:00
root 405740 762056 0 0:00
root 409758 762056 1 0:00
root 430138 762056 0 0:00
root 458874 762056 0 0:00
root 475364 762056 1 0:00
root 479398 762056 1 0:00
root 487458 762056 0 0:00
root 491520 762056 1 0:00
root 495768 762056 1 0:00
root 503852 762056 0 0:00
root 507990 762056 0 0:00
root 512032 762056 1 0:00
root 516168 762056 1 0:00
root 528426 762056 1 0:00
root 532492 762056 0 0:00
root 540868 762056 0 0:00
root 544774 762056 0 0:00
root 548954 762056 1 0:00
root 553118 762056 0 0:00
root 561254 762056 3 0:00
root 569534 762056 0 0:00
root 573464 762056 0 0:00
root 581646 762056 1 0:00
root 598242 762056 1 0:00
root 618578 762056 1 0:00
root 622712 762056 0 0:00

So can one help me, how to kill all the zombie process in one shot.

Thanks in advance...
12 REPLIES 12
Highlighted
Honored Contributor

Re: Zombie process utilising 99% of the CPU....

You can't kill defunct processes. You need to reboot the system to clear these.
Regards
Shibin
Highlighted
Regular Advisor

Re: Zombie process utilising 99% of the CPU....

Since its a production box, is there any other way to kill all those zombies..
Highlighted
Acclaimed Contributor

Re: Zombie process utilising 99% of the CPU....

>> So can one help me, how to kill all the zombie process in one shot.


Reboot.



You can't kill a zombie.

Hope this helps!
Regards
Torsten.

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Highlighted
Honored Contributor

Re: Zombie process utilising 99% of the CPU....

No. Reboot is only way to get rid off these.
Regards
Shibin
Highlighted
Acclaimed Contributor

Re: Zombie process utilising 99% of the CPU....

>zombie process utilising 99% of the CPU

Zombies don't take up CPU time. Something else is doing that.

>is there any other way to kill all those zombies.

See below.

>Shibin: You can't kill defunct processes. You need to reboot the system to clear these.

This isn't true. You can kill zombies by killing the zombie master.
What does "ps -fp 762056" show?
Is it more important to keep zombie master alive or to kill the zombies?
Highlighted
Regular Advisor

Re: Zombie process utilising 99% of the CPU....

Hello Denis,

Now the master zombie pid is 1249292.

So i tried out the below command

#ps -fp 1249292

UID PID PPID C STIME TTY TIME CMD
root 1249292 1 0 23:57:40 - 0:34 /opt/IBM/ITM/aix526/ux/bin/kuxagent

Can u pls let me know what can i do on that.

THnaks!!!!!
Highlighted
Acclaimed Contributor

Re: Zombie process utilising 99% of the CPU....

>Now the master zombie PID is 1249292.

(zombie master :-)

>/opt/IBM/ITM/aix526/ux/bin/kuxagent
>Can you please let me know what can I do on that?

Is this kuxagent process important? If you kill it, can you restart it?

This talks about killing it:
http://publib.boulder.ibm.com/infocenter/tivihelp/v15r1/index.jsp?topic=/com.ibm.itm.doc_6.1/betaworkbook364.htm
Highlighted
Honored Contributor

Re: Zombie process utilising 99% of the CPU....

Try to stop/start tivoli agent...
Highlighted
Regular Advisor

Re: Zombie process utilising 99% of the CPU....

how can i stop and start the kuxagent process ?