topic Re: Not able to kill process JAVA..... in Operating System - HP-UX

Not able to kill process JAVA.....

sreekanthtm — Thu, 03 Jul 2008 06:24:05 GMT

My server performance is very bad.... while trouble shooting the issue I found that java process is using 366MB space, and the total memory usage of my server is crossing 97%.... I am not using any java relate apps in the server. I am trying to kill the process, but its not happening...
Does any one know how to stop/ kill the process...

Re: Not able to kill process JAVA.....

OFC_EDM — Thu, 03 Jul 2008 06:41:59 GMT

Which OS?
Which commands have you tried already?

Can you provide the output of ps -ef showing your process...ps -ef | grep

If you don't care about the java apps then a
kill -9 might work.

If you're having real problems with that. Find out the startup script which starts the java process. Move the script elsewhere in case you need it. Then restart the server.

But I'd be surprised if there wasn't something that relied on it. Considering it was launched.

Maybe try using "fuser" to find out who's using the process first.

Kevin

Re: Not able to kill process JAVA.....

Anshumali — Thu, 03 Jul 2008 06:42:55 GMT

Sreekanth,

What OS you are using and what commands you have used for killing the PID, when you do a check after killing what is parent id displayed for this Java process/

Re: Not able to kill process JAVA.....

Shrikant Lavhate — Thu, 03 Jul 2008 06:43:50 GMT

Hi,

>how to stop/ kill the process

#kill -9

You can get PID from ps output.

#ps -ef| grep -i

However I dont recommend to kill any process without prior knowledge of background for that process. In you case firse investigate about java process running and then only proceed to kill.

-=ShRi=-

Re: Not able to kill process JAVA.....

Jeeshan — Thu, 03 Jul 2008 06:47:08 GMT

its simple

#kill

Re: Not able to kill process JAVA.....

sreekanthtm — Thu, 03 Jul 2008 06:51:20 GMT

OS -- B.11.23 U ia64
I tried kill , then Kill -9 ....Both were not working...
Then I killed the PPID using kill -9 . Now the PPID become 1 (init).

Java is still running...

Re: Not able to kill process JAVA.....

Anshumali — Thu, 03 Jul 2008 06:59:53 GMT

PPID=1... prepare for restart if getting rid is mandatory for you.

Re: Not able to kill process JAVA.....

sreekanthtm — Thu, 03 Jul 2008 07:04:15 GMT

OK...........
I will reboot the server... But after that How can I make sure that the java process will not start at startup...

Re: Not able to kill process JAVA.....

Shrikant Lavhate — Thu, 03 Jul 2008 07:07:10 GMT

Before restart as suggested by Kevin make a dig in statup scripts and make necessary moving of scripts related to java.
After reboot also make sure process is not running in ps.

Re: Not able to kill process JAVA.....

sreekanthtm — Thu, 03 Jul 2008 07:14:11 GMT

How to disable java i startup?
Which r the java related startup scripts...

Re: Not able to kill process JAVA.....

OFC_EDM — Thu, 03 Jul 2008 08:34:29 GMT

You could go at this at a different angle.

Look for the java binaries in /opt (most likely there I think). Move them elsewhere or rename them.

Then restart your server.

Look at the rc.log to see what failed at startup. From that you can look at which files in the rc.0 rc.2 etc folders need to be taken out.

Might be some argument here that it could hang your server at startup though.

An easier method would be to find out the Java executable name.

Then do a find mixed with a grep on all startup files.

find / -exec grep "java" {} /;
Modify to suit your needs.

Re: Not able to kill process JAVA.....

OFC_EDM — Thu, 03 Jul 2008 08:37:07 GMT

Or maybe uninstalling java from the system is a better option? using swremove.

Anyone know of any reasons this may be a bad idea? I can't recall if there's anything critically dependent on java.

Re: Not able to kill process JAVA.....

Dennis Handly — Thu, 03 Jul 2008 10:07:17 GMT

>while trouble shooting the issue I found that java process is using 366MB space

If you can't kill it with kill -9, you'll have to add more swap space or reboot. It isn't using any CPU.

Next time it happens, make sure you get the whole process tree with:
UNIX95=1 ps -Hef -x

>How can I make sure that the java process will not start at startup...

It may be very infrequent or a fluke such that you can live with it.