Solaris

Dear Bos,

I have one server,everday if I check with command TOP always present zombie,like below:

Code:

last pid:  4578;  load averages:  0.15,  0.11,  0.13                                                                                                07:56:15
298 processes: 295 sleeping, 1 running, 2 zombie, 1 on cpu
CPU states:     % idle,     % user,     % kernel,     % iowait,     % swap
Memory: 8192M real, 2465M free, 7700M swap in use, 2541M swap free

how to kill zombie process?thank for your help.


warm regards

Fredginting

Technically you cannot kill zombies - they are already dead.

Either reboot the system, kill the parent process or restart the particular service.

check out preap. this does not always work. may need to try and kill -9 it.

You can let try..

Code:

for i in `ps -lLef | grep defunct |grep -v grep | awk '{print $4}'`
               do 
                 echo "Killiing Process..pidno= $i" ; sleep 1 
                  kill -9 $i ; sleep 5; 
               done

This is pointless. A defunct process as its names implies is dead. Being dead, it cannot be killed "more", even with "-9". Also, a dead process uses no resources (RAM, CPU, I/O ...) so isn't really an issue per se , unless there are thousands or more, by polluting ps output and filling the process table.
The fact there are defunct processes is however exhibiting a bug or anomaly with their parent processes.

I'm curious what the zombie is, or was.

Hi jlliagre
fredginting wants to kill zombie process.I show the way of how do it just probably..
Zombie process already inactive but it remains to stay in ps table..
In this way parent can read exit status of its chid process(so zombie process)..
Zombie process has not been waited for its parent process..
Maybe if it waits to its parent process then parent process send wait() call to system for its zombie and system is kill the its zombie..
on this state kill -9 does not guarantee to kill a zombie process never.
If completely kill it firstly kill the parent process which has the zombie process..
In my opinion zombie can stay here baceuse has any damage to me

thanks for sharing your informations