Kill process by command name

[mop]

I logged onto my server this morning and it was running incredibly slow. I had no idea wtf was causing the problem so I executed top and sorted by memory. I found this:

 7298 customa  18   0  492M 492M  3768 S     0.0 12.3   0:08   1 java
 7300 customa  15   0  492M 492M  3768 S     0.0 12.3   1:58   2 java
 7301 customa  15   0  492M 492M  3768 S     0.0 12.3   1:58   7 java
 7302 customa  15   0  492M 492M  3768 S     0.0 12.3   1:58   5 java
 7303 customa  15   0  492M 492M  3768 S     0.0 12.3   1:58   1 java
 7304 customa  16   0  492M 492M  3768 S     0.0 12.3   1:57   6 java
 7305 customa  15   0  492M 492M  3768 S     0.0 12.3   1:58   3 java
 7306 customa  16   0  492M 492M  3768 S     0.0 12.3   1:58   4 java
 7307 customa  16   0  492M 492M  3768 S     0.0 12.3   1:58   3 java
 7308 customa  15   0  492M 492M  3768 S     0.0 12.3  15:59   5 java
 7309 customa  15   0  492M 492M  3768 S     0.0 12.3   0:07   4 java
 7310 customa  15   0  492M 492M  3768 S     0.0 12.3   0:10   6 java
 7311 customa  25   0  492M 492M  3768 S     0.0 12.3   0:00   4 java
 7312 customa  15   0  492M 492M  3768 S     0.0 12.3   0:00   3 java
 7313 customa  15   0  492M 492M  3768 S     0.0 12.3   0:32   7 java
 7314 customa  16   0  492M 492M  3768 S     0.0 12.3   0:38   6 java
 7315 customa  25   0  492M 492M  3768 S     0.0 12.3   0:00   4 java
 7316 customa  15   0  492M 492M  3768 S     0.0 12.3  11:11   0 java
 7320 customa  25   0  492M 492M  3768 S     0.0 12.3   0:00   0 java
 7578 customa  15   0  492M 492M  3768 S     0.0 12.3   1:00   4 java
 7585 customa  15   0  492M 492M  3768 S     0.0 12.3   2:19   5 java
 7586 customa  15   0  492M 492M  3768 S     0.0 12.3   2:11   1 java
 7587 customa  15   0  492M 492M  3768 S     0.0 12.3   2:21   3 java
 7588 customa  15   0  492M 492M  3768 S     0.0 12.3   2:16   3 java
 7589 customa  15   0  492M 492M  3768 S     0.0 12.3   2:10   2 java
 7590 customa  15   0  492M 492M  3768 S     0.0 12.3   2:13   6 java
 7591 customa  15   0  492M 492M  3768 S     0.0 12.3   2:12   4 java
 7592 customa  15   0  492M 492M  3768 S     0.0 12.3   2:13   0 java
 7593 customa  15   0  492M 492M  3768 S     0.0 12.3   2:19   0 java
 7594 customa  15   0  492M 492M  3768 S     0.0 12.3   2:14   4 java
 7595 customa  15   0  492M 492M  3768 S     0.0 12.3  49:32   5 java
 7599 customa  15   0  492M 492M  3768 S     0.0 12.3   1:03   3 java
 7603 customa  15   0  492M 492M  3768 S     0.0 12.3   1:00   4 java
 7608 customa  15   0  492M 492M  3768 S     0.0 12.3   0:00   2 java

So, how can I killl all process that are executing Java?

[ToRk]

Hello

try
killall -v java

[Tor]

When I look at the killall command I see: -v,--verbose report if the signal was successfully sent

Not sure how killall -v java would help him in this case.

[ToRk]

yes you are right , sorry for this mistake
i recheck & almost nothing kill process by name

[Jordan]

I don't think there is a default method to kill by name. You could write a shell script to do it though.

[Corwin]

in additional you can try to kill with "-12" this will try to shutdown proper the application

[Roger]

I normally do 'ps aux' and 'kill -9' the PID

#ps aux
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND

[Alexander]

I normally do 'ps aux' and 'kill -9' the PID

A more apt and simple method, to kill all processes by the process' name:

killall -9  Java

Note it will kill all open processes of the programme, if you would wish for it to be more specific:

killall -9 Java -u customa

[sea]

This is already answered by the guy above me, but you should know about 'pkill', it kills a process by name. I think you can also use regexp in the name, too.
Check the manpages for it.

example: pkill -9 java;

[phpforfun]

kill -9 $(ps -e |grep "httpd" | awk '{print $1;}')

or

killall -9 httpd

assuming httpd is the service you wanna kill.