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How to kill SSH Defunct process

Posted on 2008-10-13
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Last Modified: 2013-12-16
Hi All,

Currently we have issues with defunct processes. These defunct processes slows down the performance of the database servers. I know defunct can be killed by either rebooting the server or kill the parent process. My problem is as this is a database server, we have some processes related to database too running as defunct.

My request is to kill only SSH defunct processes. Do we any script to do so.

Kindly assist.

Cheers,
Bull
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Question by:tkstkstks
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Expert Comment

by:michofreiha
ID: 22703979
I  advice to list them all first and them kill them one by one
to list all SSh processes:

ps -aux | grep SSH

You'll get the PID of each one and kill them one by one

kill -9 PID
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Assisted Solution

by:omarfarid
omarfarid earned 125 total points
ID: 22704486
If you can not kill a defunct process, then you have to reboot.
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Author Comment

by:tkstkstks
ID: 22704620
I have almost 250 defunct process running, i don't have time to kill each one by one.
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Accepted Solution

by:
omarfarid earned 125 total points
ID: 22704693
can you reboot?

try

ps -ef | grep defunct | grep -v grep | awk ' { print $2 } ' | while read pid
do
  kill -9 $pid
done
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