Ubuntu Servers :: Kill Processes With Name=x && %mem>y?
Sep 22, 2010
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!
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Jun 15, 2010
I'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.
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Dec 14, 2010
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?
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Dec 3, 2010
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
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Nov 18, 2010
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).
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Oct 28, 2010
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.
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Aug 26, 2009
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.
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Nov 18, 2010
All 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.
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Aug 3, 2010
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
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Aug 14, 2009
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].....
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Oct 21, 2010
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...
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May 3, 2010
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.
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Feb 11, 2011
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
[code]....
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Oct 19, 2010
I am trying to write a script which when executed should kill all currently running cat processes.
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Jun 18, 2010
How 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
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Jul 28, 2011
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.
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Dec 16, 2009
I 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?
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Apr 12, 2011
i want to remove a path, but is in use.. How can i kill the zombie processes?
[Code]....
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?
[Code]....
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Apr 28, 2011
how do I detect and kill zombie processes left from the command line of a Linux terminal?
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Dec 15, 2010
I'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)?
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Oct 21, 2010
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
[code]...
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Jun 22, 2011
After an update recently I noticed that my process count jumped up quite a bit. Somehow it doesn't seem related (it was an apt update I believe), but I'll just throw it out there. All of the extra processes seem to be related to XFS and JFS file system kernel processes, but none of my file systems use XFS nor JFS, just EXT3 & EXT4. Is there any safe/easy way to kill off these processes and prevent them from re-spawning? I don't find having irrelevant idle processes to be beneficial nor efficient. It's using Ubuntu 10.04 64-bit. Only active file systems are EXT4 and EXT3.
[Code]...
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Feb 22, 2010
I'm looking for a command that will give me a list of users (unique, dont name my user account 60 times) that are running processes on a system.
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Apr 1, 2010
When I open top and look at the running processes, there a bunch that are -5 in the nice and 0 with everything else.
[Code]....
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Apr 19, 2010
I have several web servers running Ubuntu 8.04 64-bit server and occasionally Apache sends my load to 13 and higher.
Is there a log that actually tracks the system load levels and possibly the processes running at the time and their percentage of the load?
At the basic level what I am looking for would be a log of top but not exactly that.
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Aug 19, 2010
I was under the impression that /etc/environment was the place to put variables if you wanted them to be available to all users at all times. But I just realized root which is running my service processes doesn't seem to load it.My /etc/environment:
Code:
RAILS_ENV="production"
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
[code]....
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Dec 5, 2010
I have written this script to monitor Apache2:
Code:
#!/bin/bash
#count lines that show apache2 but not the fgrep itself
let i=`ps aux | fgrep apache2 | fgrep -v grep | wc -l`
if [ "$i" -gt 0 ]
then
#log something
[Code]...
It has all been working fine until recently when Apache is becoming unresponsive. I manually ran ps to check and there were 3 processes. However when I ran apache2ctl graceful I got the message 'httpd not running, trying to start' Is there a better way to check if a daemon is up?
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Apr 12, 2010
how I could save all of the mail sendmail processes to a named pipe?
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Apr 7, 2011
Using Ubuntu server 10.04.2 64-bit all up to date.
I am running multi-threaded processes. These use OpenMP in my own code and the multi-threaded ACML maths library. When run in the foreground, everything is fine i.e. if I have set
export OMP_NUM_THREADS=8
then when I start all 8 cores are in use and things whizz along. However, when running overnight and logged out using e.g. 'at now + 1 minute' then the command, I am only getting about 130% CPU and it slows down accordingly. I have tried renice'ing and calling from within a bash script in case sh is doing something odd but nothing seems to solve it. I am sure that in the recent past this wasn't the case.
The libraries being used are shared versions in case that might have any bearing.
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Jan 13, 2011
the process is mcelog. When I do as root kill -9 2323 which is pid of mcelog the process is not killed. I tried doing the same from top, press K and enter pid of mcelog. doing ps auwx | grep mcelog I see there are several results. I tried killing all of them like kill -9 2355 2341 3425 2345. But re-running the above commands still shows them as running. How else would I troubleshoot this to avoid restarting of the box.
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