I have my code with my fork in a server and each time a client connects one more process is created. i use this code for the handling of zombies
void sig_chld(int signo){//Diadikasia gia tin diagrafi twn 'zombies'
signal( SIGCHLD, sig_chld );//signal gia ton entopismo tou zombie
pid_t pid;
[code]....
but i need the server to kill each zombie after the client is disconnecting and not to have to press ctrl+c
i want to remove a path, but is in use.. How can i kill the zombie processes?
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I guess i was wrong deleting first the disks that formed the path, but now how could i kill those zombie processes without a reboot?
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how do I detect and kill zombie processes left from the command line of a Linux terminal?
View 3 Replies View RelatedI have written a simple script which has to find required patterns from a bunch of files ( where each file is around 2 GB each,which contain the output of seq 1 10000000000000) on an 8 core machine.I am current forking 6 child processes which run simultaneously on 6 cores of the processor & have to search for the required pattern in 6 different files & inform the parent process when a pattern is found using a PIPE.
The problem is,when a child process is done reading a text file looking for a pattern,it is becoming a zombie process.It exits cleanly when i put a $SIG{CHLD} = "IGNORE"; in the script.Can any one tell me whats going on & how do i improve the communication between child and parent processes?
Code:
#!/bin/perl
use strict;
[code]...
how to even start this Perl script. I have the following processes:
Command used to get this info:
ps aux --forest | grep -e process_name -e ksh | awk '{if ($1 == "user1" && $1 != "root" && $1 != "UID" && $1 != "xfs" && $1 != "mfg" && $1 != "mfgnet") print $0}'
Processes
user1 2819 0.0 0.0 4272 612 ? S Nov17 0:00 \_ -pksh-ksh
user1 2820 0.0 0.0 64956 1584 pts/833 Ss+ Nov17 0:00 \_ -ksh
[code]....
I need a way to kill off the pids 2819, 2820 because they do not have a process tied to them like pids 2918, 2922 and 6657. The way it works is peek shell (pid 2918)is opened then it starts a ksh (pid 2922) session then from there the end user runs a command (pid 6657).
User 1 and User 2 each start a mono process with sudo:
"sudo mono user1.exe" "sudo mono user2.exe"
Each user has a kill.sh in their directory, which is being called by user1.exe/user2.exe to kill the process.
The script itself is
ps aux | grep 'mono user1.exe' | awk '{print $1}' | xargs kill
which in theory should pull *only* the PID of "mono user1.exe" and kill only that. The problem: It kills any and every single instance of mono that is running on my system, every userx.exe thats open. I am confused, as a simple "ps aux | grep 'mono user1.exe'" does only return the mono user1.exe process and not the others. "ps aux | grep 'mono'" returns them all though. how I can modify that script so that it only kills the specific process? Would "pkill -9 -f 'mono MCuser1.exe'" work as well - or would it too kill every instance of mono? I cant do a lot more of trial and error, its not good I am killing those instances accidently...
Sometimes I find a process named 'sh' running under my username with the status 'zombie' waiting channel 'do_exit' on my system. Its ID increments by 4 every time System Monitor updates its display.
Today, it was there immediately after booting The only thing I did after logging in is start the System Monitor
I can't kill it since its ID changes too fast.
I don't know how it gets started, but it bothers me since it is behavior I would expect from something that is trying to hide.
If I hover over its name, the tool tip contains 'sh'
Sometimes (rarely) when I try to open VLC it wont open, but it stays in the background and takes 98-100% of one core.
The problem is that I can't kill that vlc-process.
Code: Select allkillall vlc
will NOT kill it
and
Code: Select allkill 31641
won't work either
top shows
Code: Select allPID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
31641 xxxxxxxx 20 0 1320248 64384 39120 S 100.0 1.6 44:51.94 vlc
Is there any way to kill the vlc-process (without booting the machine)? I also tried the "killall vlc" and "kill 31641" as root with the same results.
I have Debian jessie and the only "nonofficial" repositories I have enabled are
#google chrome
http://dl.google.com/linux/chrome/deb stable main
#Backports
deb http://httpredir.debian.org/debian jessie-backports main
And from those I have installed only chrome, and wine-development, and I dont think those could have anything to do with this problem.
Booting the machine does work, but I don't want to boot my machine just now. This happens about once per week
I have a process that I cannot kill with kill -9 how to go about this?
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It is an openvpn process but I cannot retsrat the service as I alreday have another openvpn service running on the server so when I do openvpn service restart, it won;t know which service to restart.
Slack is 32bit. Frequently, firefox becomes unresponsive. I can close the window, but the process is not terminated. I am not able to restart firefox without rebooting.
When this problems occurs the firefox processes are not terminated by the 'kill' command. Example
Code:
tim@bart:/home/http/run/baker/cron$ ps aux | grep firefox
tim 3780 0.0 0.0 3356 1640 ? S 15:59 0:00 /bin/sh /usr/bin/firefox
tim 3792 0.0 0.0 3404 1696 ? S 15:59 0:00 /bin/sh /usr/lib/firefox-3.5.2/run-mozilla.sh /usr/lib/firefox-3.5.2/firefox-bin
tim 3796 0.3 3.2 316560 95712 ? Sl 15:59 0:21 /usr/lib/firefox-3.5.2/firefox-bin
[Code]....
I have an issue on one of my servers whereby the [normally very helpful] du and tar programs are somehow using up too much or my system resources (du 40% mem, tar 20% mem) and causing problems. I am after a command which is able to kill a process without knowledge of a PID but by process name e.g. "du" and memory usage e.g. >= 10%.
Something along the lines of:
kill $(pgrep du) grep %MEM > 10
Although I know that is invalid syntax I cannot fathom the correct/best way to achieve this end!
if i do a
ps aux | grep ftp
that would show me at least any active ftp connects started with the ftp command, right? Is there then a way to use that to somehow kill any stuck sessions that are older than an hour?
I am developing a daemon that is acting up and I am now unable to create any new processes (ie. I cannot start a new process to kill the other rogue processes). So, I need to be able to kill the processes from a remote machine. How do I do "kill" remotely without admin privileges? If I cannot kill my own process from a remote machine as a normal user then tell me so I can mark it as the correct answer.
View 3 Replies View RelatedI'm working with Eclipse and it's starting to misbehave now and then which completely freezes my computer. Is there any emergency command to kill such a misbehaving process so I don't have to reboot my computer?
I already have a emergency xkill icon in my taskbar and a [Ctrl]+[F1] console with "> sudo killall eclipse" pretyped(!) but sometimes it's even to late for this. What I would need is a emergency command/console that gets a guaranteed amount of process time so I can kill these process.
I've run into what is apparently an age-old SSH problem, which is that killing an ssh client process does not kill the remote process (unlike e.g. rsh). There seem to be lots of patches and a couple of open bugs on this topic that have been there for about 10 years or so... Having convinced myself by googling that there is no easy solution, I'm now looking for a workaround of some sort. I'm writing a testing framework so the processes I'm running remotely could be anything at all, i.e. I only have control of the client side. Also the remote processes are of course highly unstable and I need to be able to terminate them if they hang. ssh -t won't work for me as I don't necessarily have a terminal. Finding the remote process ID would be enough so I can do ssh <machine> kill <pid>, but I don't see any way to do that either. Just using ps, pgrep etc seems to suffer from not being able to uniquely identify the correct process, and killing the wrong process is of course very bad.
View 14 Replies View RelatedAll the kill idle user processes scripts I've seen don't take into account that the user might have multiple sessions open. Such is the case with one of our clients. Currently, every hour or two I need to do the following:
This will get the TTY and idle time for all users.
For each idle time over a half hour, I do the following (TTY is the TTY from the previous command with a space.
I then kill those processes.
There must be a way to do this automatically in a bash or perl script. I've tried both, but can't seem to get things to work properly.
i was referring to an article given in following website.[URL] I was surprise to know that i can kill all running processes by using kill 0. However when i tried running the command nothing happened.
my machine details:
Code:
# lsb_release -a
LSB Version: :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: EnterpriseEnterpriseServer
Description: Enterprise Linux Enterprise Linux Server release 5.2 (Carthage)
Release: 5.2
Codename: Carthage
I'm attempting to use 'killall' to kill all mysql processes, however after using the command mysql processes are still alive. 'killall mysql' says no processes were killed, and while 'killall mysql_safe' gives no message there are still mysql processes alive afterwards.
Code:
# killall mysql
mysql: no process killed
# killall mysqld_safe
[code].....
I don't know about your computer but when mine is working properly no process is sucking 95%+ over time. I would like to have some failsafe that kills any processes behaving like that. This comes to mind because when I woke up this morning my laptop had been crunching all night long on a stray chromium child process.
This can probably be done as a cron job, but before I make it a full time job creating something like this I'd thought I should check here. :) I hate reinventing the wheel.
I issue the command ps -aux | grep tony. It displays the following output
tony 10986 0.0 0.0 33532 464 ? S Feb01 0:00 vncconfig -iconic
tony 10988 0.0 0.0 86012 512 ? S Feb01 0:00 twm
tony 15553 0.0 0.0 92404 1848 ? S 10:34 0:00 sshd: tony@pts/34
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I am trying to write a script which when executed should kill all currently running cat processes.
View 1 Replies View RelatedHow to tell the kill command to ignore processes if that process is not alive?
For example: 3453 is an alive process but 44534 is not.
kill -9 3453 44534
How to kill the processes accessing Internet in background using terminal commands.Command to stop (disconnect) the processes accessing Internet.Command to kill the process accessing Internet.
View 1 Replies View RelatedI thought 'killall' would work, but I need to provide the "command" to kill. I'm really looking for a command that will kill all processes that have a particular file/directory open. Currently, my script fails on an 'umount' because there are several processes that have this filesystem open. The command 'lsof' is a good tool to determine which processes have a filesystem open, but I don't really want to write a script that parses through the 'lsof' output to capture PSIDs. Is there a linux command that can kill all processes that may have a particular filesystem open?
View 2 Replies View RelatedI'm trying to avoid kill -9 for the reasons described in the Useless Use of Kill -9 form letter. Is this function sufficient, or do I need to kill the kill processes after a timeout or take care of other subtleties?
soft_kill()
{
# Try to avoid forcing a kill
# @param $1: PID
kill $1 || kill -INT $1 || kill -HUP $1 ||
(echo "Could not kill $1" >&2; kill -KILL $1)
}
As an aside, what's a better name for this function? The current name reminds me of "Killing Me Softly", and manslaughter sounds a bit severe. Maybe spoon_kill (Google it)?
My script in /usr/bin displays the time on the console tty1 :
Quote:
if [ $(echo &>/dev/null > /dev/tty8; echo $?) -eq 0 ]
then
while [ 1 -lt 2 ]
do
[code].....
I'm started this script : /usr/bin/showtime How i can kill process of this script.
I wanted to know how to kill more than one process in unix??
e.g- I have problem statement as
"Write a shell script to Kill all processes started from your login "
Today I run OpenOffice.org extensions update and it freezed fter showing me that everything was successful.When i xkilled it it refused tolaunch without any problem indication.killall soffice.bin didn't report "No process found" after 1,2,3...20 times.So I tried killall soffice.bin -i
Code:
$ sudo killall soffice.bin -i
Kill soffice.bin(3319) ? (y/N) y
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My server pretty often becomes full up php processes running which are not needed.Is there a way to search for and kill any php process that is more than 3 hours old? as I understand it, i need to use ps piped with awk. awk at the moment seems very complicated to me, do not how to start tackling it.
View 5 Replies View RelatedI am doing real time programming in C++, under Linux. I have two processes, let me say A and B. A process is being started periodically, every 5ms. B process is being started every 10ms. The process A is doing data processing. The process B is reading that data and displays it. I am confused about how to run periodically processes. The problem is that the period of process A should be as much as it is possible accurate (5ms). For the process B it isn't so important. I have created independent processes, each in one .cpp file, and I am starting them from bash file. Is that OK? I don't have to make child processes in order to have parallel processes?
View 1 Replies View Related