VPS- Server Processes Not Getting Killed

Yum Update Killed SSH

Feb 24, 2008

I did a yum update on my VPS and now I can't connect SSH.

Putty gives me the error message "Network error:Connection refused.

My VPS is running fine otherwise.

I opened a support ticket and got this reply.

"Not sure exactly what happened, but something you did has corrupted your system, I cannot even login to it from our node. I think the only thing you can do now is rebuild your system."

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PHP Process In Shell Keeps Getting Killed

Jul 10, 2009

My dedicated machine (Quad core, 8gb ram running Debian stable latest + Apache2) is giving me a real hard time.

I got a long running php script (a crawler) that takes long to run and keep getting killed.

The code already have max_execution_time set to -1 (also tried 90000) and max_input_time + max_memory set to -1 (meaning no limit).

I run it in shell with nice set to 19 (!) to ensure the OS don't kill it:
>> nice --adjust=19 /usr/bin/php -f crawl.php

And always, at the same time (after 10 mins or so) it get "Killed".

I can't trim down the code as the crawl is dynamic (from link to link).

how I can save the php from getting "killed"?

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OOM Killed Process Httpd

Nov 27, 2008

I have a VPS and experienced frequest httpd crash errors. Here's the log I got from support:

Quote:

++++++++++++++++++++++++++++
# grep 6997 /var/log/messages|grep OOM | wc -l
2037
Nov 14 02:07:26 chi08 kernel: OOM killed process httpd (pid=19282, ve=6997) (mm=0e9e1780) exited, free=53673 gen=137193.
Nov 14 02:07:27 chi08 kernel: OOM killed process httpd (pid=19149, ve=6997) (mm=7bc4b440) exited, free=57305 gen=137194 ...........
++++++++++++++++++++++++++++

I have 512MB RAM

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Server Processes Taking Up So Much Cpu

Apr 13, 2008

My server has been crashing quite alot lately, it does have some high traffic sites on there but it has never really been this bad before. Today i noticed these in cpanel, what are they and is there anyway I can control them?

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Could Any Of These Processes Kill My Server

Nov 16, 2007

Code:

1(init)/sbin/init/init [3]����������������������������������������������������������������������������������������
2(ksoftirqd/0)/
3(events/0)/
4(khelper)/
5(kacpid)/
20(kblockd/0)/
38(pdflush)/
39(pdflush)/
41(aio/0)/
21(khubd)/
40(kswapd0)/
187(kseriod)/
301(kjournald)/
1345(udevd)/sbin/udevd/udevd�
1704(kauditd)/
1745(kmirrord)/
1975(kjournald)/
1976(kjournald)/
1977(kjournald)/
1978(kjournald)/
1979(kjournald)/
2668(syslogd)/sbin/syslogd/syslogd�-m�0�
2672(klogd)/sbin/klogd/klogd�-x�
2693(named)/usr/sbin/named/var/named/usr/sbin/named�-u�named�
2736(courierlogger)/usr/sbin/courierlogger//usr/sbin/courierlogger�-pid=/var/spool/authdaemon/pid�-facility=mail�-start�/usr/libexec/courier-authlib/authdaemond�
2737(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2772(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2773(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2774(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2775(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2776(authdaemond)/usr/libexec/courier-authlib/authdaemond//usr/libexec/courier-authlib/authdaemond�
2814(smartd)/usr/sbin/smartd//usr/sbin/smartd�
2823(acpid)/usr/sbin/acpid//usr/sbin/acpid�
4454(sshd)/usr/sbin/sshd//usr/sbin/sshd�
4467(xinetd)/usr/sbin/xinetd/xinetd�-stayalive�-pidfile�/var/run/xinetd.pid�
4534(chkservd)/usr/bin/perl/chkservd
4545(courierlogger)/usr/sbin/courierlogger//usr/sbin/courierlogger�-pid=/var/run/imapd.pid�-start�-name=imapd�/usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�143�/usr/lib/courier-imap/sbin/imaplogin�/usr/lib/courier-imap/bin/imapd�Maildir�
4546(couriertcpd)/usr/lib/courier-imap/libexec/couriertcpd//usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�143�/usr/lib/courier-imap/sbin/imaplogin�/usr/lib/courier-imap/bin/imapd�Maildir�
4553(courierlogger)/usr/sbin/courierlogger//usr/sbin/courierlogger�-pid=/var/run/imapd-ssl.pid�-start�-name=imapd-ssl�/usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�993�/usr/lib/courier-imap/bin/couriertls�-server�-tcpd�/usr/lib/courier-imap/sbin/imaplogin�/usr/lib/courier-imap/bin/imapd�Maildir�
4554(couriertcpd)/usr/lib/courier-imap/libexec/couriertcpd//usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�993�/usr/lib/courier-imap/bin/couriertls�-server�-tcpd�/usr/lib/courier-imap/sbin/imaplogin�/usr/lib/courier-imap/bin/imapd�Maildir�
4559(courierlogger)/usr/sbin/courierlogger//usr/sbin/courierlogger�-pid=/var/run/pop3d.pid�-start�-name=pop3d�/usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�110�/usr/lib/courier-imap/sbin/pop3login�/usr/lib/courier-imap/bin/pop3d�Maildir�
4560(couriertcpd)/usr/lib/courier-imap/libexec/couriertcpd//usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�110�/usr/lib/courier-imap/sbin/pop3login�/usr/lib/courier-imap/bin/pop3d�Maildir�
4565(courierlogger)/usr/sbin/courierlogger//usr/sbin/courierlogger�-pid=/var/run/pop3d-ssl.pid�-start�-name=pop3d-ssl�/usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�995�/usr/lib/courier-imap/bin/couriertls�-server�-tcpd�/usr/lib/courier-imap/sbin/pop3login�/usr/lib/courier-imap/bin/pop3d�Maildir�
4566(couriertcpd)/usr/lib/courier-imap/libexec/couriertcpd//usr/lib/courier-imap/libexec/couriertcpd�-address=0�-maxprocs=40�-maxperip=30�-nodnslookup�-noidentlookup�995�/usr/lib/courier-imap/bin/couriertls�-server�-tcpd�/usr/lib/courier-imap/sbin/pop3login�/usr/lib/courier-imap/bin/pop3d�Maildir�
4644(clamd)/usr/sbin/clamd//usr/sbin/clamd�
4648(exim)/usr/sbin/exim/var/spool/exim/usr/sbin/exim�-bd�-oX�26�
4654(exim)/usr/sbin/exim/var/spool/exim/usr/sbin/exim�-bd�-q60m�
4658(exim)/usr/sbin/exim/var/spool/exim/usr/sbin/exim�-tls-on-connect�-bd�-oX�465�
4666(antirelayd)/usr/bin/perl/antirelayd
4752(spamd)/usr/bin/perl//usr/bin/spamd -d --allowed-ips=127.0.0.1 --pidfile=/var/run/spamd.pid --max-children=5
4762(spamd)/usr/bin/perl/spamd child
4763(spamd)/usr/bin/perl/spamd child
4826(pure-ftpd)/usr/sbin/pure-ftpd/pure-ftpd (SERVER)������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������
4829(pure-authd)/usr/sbin/pure-authd//usr/sbin/pure-authd�-s�/var/run/ftpd.sock�-r�/usr/sbin/pureauth�
4856(crond)/usr/sbin/crond/var/spoolcrond�
4874(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
4877(xfs)/usr/X11R6/bin/xfs/xfs�-droppriv�-daemon�
4886(anacron)/usr/sbin/anacron/var/spool/anacronanacron�-s�
4969(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
4995(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
4998(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
5001(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
5004(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
5005(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
5034(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
5083(cphulkd.pl)/usr/bin/perl/cPhulkd - processor
5105(cpdavd)/usr/bin/perl/cpdavd - accepting connections on 2077 and 2078
5116(cpbandwd)/usr/bin/perl/cpbandwd
5117(cpanellogd)/usr/bin/perl/cpanellogd - sleeping for logs
5154(mailmanctl)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/mailmanctl�-s�start�
5155(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=ArchRunner:0:1�-s�
5156(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=BounceRunner:0:1�-s�
5157(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=CommandRunner:0:1�-s�
5158(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=IncomingRunner:0:1�-s�
5159(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=NewsRunner:0:1�-s�
5160(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=OutgoingRunner:0:1�-s�
5161(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=VirginRunner:0:1�-s�
5162(python2.4)/usr/local/bin/python2.4/usr/local/cpanel/3rdparty/mailman/usr/local/bin/python2.4�/usr/local/cpanel/3rdparty/mailman/bin/qrunner�--runner=RetryRunner:0:1�-s�
5172(dbus-daemon-1)/usr/bin/dbus-daemon-1/dbus-daemon-1�--system�
5183(hald)/usr/sbin/hald/hald�
5194(mingetty)/sbin/mingetty//sbin/mingetty�tty1�
5195(mingetty)/sbin/mingetty//sbin/mingetty�tty2�
5196(mingetty)/sbin/mingetty//sbin/mingetty�tty3�
5197(mingetty)/sbin/mingetty//sbin/mingetty�tty4�
5198(mingetty)/sbin/mingetty//sbin/mingetty�tty5�
5199(mingetty)/sbin/mingetty//sbin/mingetty�tty6�
5806(cpsrvd-ssl)/usr/local/cpanel/cpsrvd-ssl/usr/local/cpanel/basecpsrvd - waiting for connections
5924(authProg)/usr/local/cpanel/bin/courier-auth//etc/authlib/authProg�
5959(mysqld_safe)/bin/bash/var/lib/bin/sh�/usr/bin/mysqld_safe�--datadir=/var/lib/mysql�--pid-file=/var/lib/mysql/tiny.dnsprotect.org.pid�
5994(mysqld)/usr/sbin/mysqld/var/lib/mysql/usr/sbin/mysqld�--basedir=/�--datadir=/var/lib/mysql�--user=mysql�--pid-file=/var/lib/mysql/tiny.dnsprotect.org.pid�--skip-external-locking�--socket=/var/lib/mysql/mysql.sock�
6081(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
7291(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
7293(mono)/opt/mono/bin/mono//opt/mono/bin/mono�/opt/mono/lib/mono/1.0/mod-mono-server.exe�--filename�/tmp/mod_mono_server_global�--nonstop�--master�
7298(httpd)/usr/local/apache/bin/httpd//usr/local/apache/bin/httpd�-k�start�-DSSL�
7740(eximstats)/usr/bin/perl/eximstats
7822(authProg)/usr/local/cpanel/bin/courier-auth//etc/authlib/authProg�
8527(authProg)/usr/local/cpanel/bin/courier-auth//etc/authlib/authProg�
9234(cpsrvd-ssl)/usr/local/cpanel/cpsrvd-ssl/usr/local/cpanel/whostmgr/docrootwhostmgrd - serving 81.104.99.97
9236(whostmgr)/usr/local/cpanel/whostmgr/bin/whostmgr/usr/local/cpanel/whostmgr/docroot/usr/local/cpanel/whostmgr/bin/whostmgr�./simpleps�
9237(simpleps)/usr/bin/perl/usr/local/cpanel/whostmgr/docroot/usr/bin/perl�/scripts/simpleps�--html�

Recently server been a lil unstable... unsure why.. only recent thing i've installed is eaccelerator thingy.

and It was a lil unstable before that..

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Server Load :: Of Simultaneous Processes Should Not Exceed 5

May 1, 2008

In learning that some hosts seem to be tightening shared hosting specs, I'm wondering what a 'simultaneous process' is... as from this clip: 'number of simultaneous processes should not exceed 5'.

Is each part - for example, graphics and includes - of an individual webpage a 'process'?

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Server Load, And Tracing Httpd Processes

Feb 28, 2008

I have a server that has server load showing at 25-40 (once it was even 53!), running like that for hours. The server has 4 cpus - and yet the sites on the server seem to run fine when I check them. What I'm wondering is, what exactly is load in this context; and how can load run so high like that without the server crashing?

According to top, the load is caused by httpd processes running under user 'nobody', that often take up double digit CPU percentage.

Does Apache always run under 'nobody'?

Is there any way to trace an httpd processes - which account it's for, or which physical script or URL is calling it?

And for top itself, the TIME field on one server of mine is in the format xx:xx (e.g. 3:25), on another it's TIME+ and in the format xx:xx.xx (e.g. 30:02.77). What exactly does this mean? I would asume it's minutes:seconds and minutes:seconds:hundredths, but while watching top it doesn't seem to correlate with that.

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Apache Takes All The Server's Ram With Child Processes

Mar 22, 2008

I do a ps aux, and get a bunch of:

/usr/sbin/httpd

Each one takes up like 4% of the available ram - and when the ram is gone, the server dies (it doesn't have a swap file - half the time you can't even log in to it), and you have to reboot Apache.

I thought of limiting maxchilds, but would that break something else?

Should I just make a swap file? Will that defeat the point of creating child processes?

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Server Update, Too Many Apache Processes But Low Load

Apr 24, 2007

I have 2 almost similar webservers:

debian 3.2, P4 3GHZ, 1 Gb ram, kernel 2.6, apache2, php4

Initial apache2.conf:

Code:
Timeout 4
KeepAlive Off
KeepAliveTimeout 2
ServerLimit 1500

<IfModule prefork.c>
StartServers 10
MinSpareServers 10
MaxSpareServers 15
MaxClients 1500
MaxRequestsPerChild 3000
</IfModule>

I update the sources.list on server 1 to mirrors of the new debian 4 etc . I run apt-get update and apt-get dist-upgrade . A whole bunch of things get updated (it was long time ago that I did this anyway). After some troubles with /boot/grub/menu.lst the server boots ok, and everything is well. This server used to have loads of 15-25 at peak times, but after the update its running very smooth with loads of 2-3 at the same peak times. I dont know why exactly, as I noticed updates in OS , kernel version (from 2.6.8x to 2.6.18) , apache2 , php (4.4.4-8+etch1) , and I also needed to update eaccelerator from 0.94 to 0.95 .

A few days later I update server 2. Everything seems to go the same, although the kernel version stays at 2.6.8-3-686. I dont think kernel version at start was exactly same at server 1. But the new php version is the same as server 1, and everything else looks the same too.

But when peak times are coming up, this server starts to have troubles. It is quickly rising to total of 200-300 processes , while server 1 always stays stable at 60-70.

Server 2 also reacts slow if I click somewhere on the site. It takes 5-10 seconds to show a new page. However the load stays pretty low at 1-2 . I see no big cpu usage and also no big memory usage. I have the impression that this server 2 is somehow wasting a lot of apache processes and is making things hard for itself without a real reason.

When I check the seperate mysql database server, I also notice a lot of processes.

Around 200-250 whereas it used to be 40-60. Sometimes this adds up so hard, that all webservers are blocked because mysql has too much processes. When I check the mysql connections, I see a few dozen things like 'unauthen ip:port Connect login' just hanging. All of them have the ip of webserver 2. Those extra apache processes are somehow hanging on to the mysql server without really doing something.

I dont know what is happening, but this server is underperforming very badly now. I managed to limit the problem by drastically lowering ServerLimit and MaxClients on webserver 2 , but this is no real solution. The server is still slow, at least now its not bringing down the others.

My question : what should I check for now ? I noticed a different structure in the conf files in debian etch, maybe something new has a bad influence on my old conf files? Is there something wrong with the combination of kernel+php version? I have no idea, please point me in the right direction so I can learn from this.

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High Server Load - Httpd Processes

Mar 23, 2008

a topic long time ago that my server load is frequently high.

I'm talking about something like this
Server Load 158.86
Memory Used 28.2 %
Swap Used 99.57 %

[url]

The only way to solve this problem is to identify the load earlier and kill all httpd process. What I did was

#killall -9 httpd
#killall -9 httpd
#killall -9 httpd
x 30~40 times until no pid process found & the server load is back to normal.

On previous thread, I tried to update mysql & php and it works,

Right now again I am experiencing high server load again...

I'm very sure it's caused by httpd but I am still unable to find out the real cause of the problem and which account user is the culprit for causing this high load.

Can someone assist me by telling me where/how to begin with?

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Long Running Apache Processes In Server-status

Feb 13, 2007

I'm not sure I understand the server-status page enough to know if this is a problem or not, but I have several processes that seem to run forever, or until I restart Apache. e.g.

Code:
13-1 21045 0/697/4264 W 59.45 19641 0 0.0 43.28 274.97 66.249.66.133 www.example.com GET /wp/2005/01/ HTTP/1.1
19-1 408 1/834/1831 C 83.52 32463 0 14.8 149.66 263.48 66.249.66.133 www.example.com GET /wp/ HTTP/1.1
30-1 14416 0/430/431 W 35.19 13347 0 0.0 37.42 37.44 66.249.66.133 www.example.com GET /wp/category/issues/ HTTP/1.1

They are almost always on a single domain (there's about 100 on the server) that's a Wordpress site. These processes are also almost always a search engine.

On the rare case I see them running on other domains on the same server they're always on Wordpress sites.

The longer the processes run, the more processor/memory they use, the more they slow the server down.

It seems to have just started in the past few weeks, I've had the site there for a couple years.

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Apache :: Number Of Fcgid Processes On Windows Server

Oct 10, 2013

I'm new to fcgid on Windows. my current set up is as follows;

Windows Server 2008
Apache 2.4.4
PHP 5.3.27 (fcgid)
MySQL 5.6.14

1. Looking at windows task manager, each of my processes have 4 threads each. What does this mean?

2. Does the number of FcgidMaxProcesses x memory_limit = Total amount of memory required?

3. Number of Threadsperchild = number of FcgidMaxProcesses ?

I just want to know how these two work together.

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Plesk 11.x / Linux :: How To Stop High Number Of Httpd Processes Crashing Server

May 17, 2014

Our server is running; Plesk 11.0.9 and CentOS 5.7 it has a Q8200 CPU @ 2.33GHz and 2GB of RAM. Now there are just two websites on the server plus a couple of redirects/forwarding domains, although lots of domains are still on the server but turned off in Plesk. Both websites are OSCommerce sites and I just need to keep these sites going until the end of the year when we will switch to our new Joomla based website.

We have seen an increasing number of server crashes and after various checks of the logs, fitting a new BIOS battery, check of the hardware by EasySpace who host the server, installation of ClamAV, LMD and RKHunter (which did find some Trojans and Suspect software), I have traced it down to some external Http activity that is taking all of my CPU time and RAM. Here is a screen capture of the Htop listing and when I killed these processes the CPU and RAM went back to normal. The problem is that I usually have to restart the HTTPD service and sometimes things get so bad that the server crashes and I have to request a power cycle.

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What Are These Processes

Aug 6, 2007

ps x

Quote:

7992 ? S 0:08 [cifsd]
26898 ? S 0:00 [cifsoplockd]
26899 ? S 0:00 [cifsdnotifyd]

What are those processes?

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Trace Your Processes

Oct 23, 2006

anybody here have a review or a way to trace proccess from scratch after top -c or ps -aux
how i got the exact file or user cause this process ....

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Processes Under Fcgid

Jul 10, 2009

I just recently switched to using fcgid with cPanel and was wondering how I can go about seeing what is actually running under each process. Before when I was running PHP as CGI I could do psauxwe|grep PID and see all the environmental variables along with the path. I'm not able to do that any longer with fcgid. Is there anyway to get this info now?

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Are These Essential Processes

Jun 6, 2009

rpc 1749 1 0 04:15 ? 00:00:00 rpcbind
dbus 1766 1 0 04:15 ? 00:00:00 dbus-daemon --system
root 1790 1 0 04:15 ? 00:00:00 /usr/sbin/acpid
68 1798 1 0 04:15 ? 00:00:00 hald
root 1801 1 0 04:15 ? 00:00:00 /usr/sbin/console-kit-daemon
root 1802 1798 0 04:15 ? 00:00:00 hald-runner
root 1898 1802 0 04:15 ? 00:00:00 hald-addon-input: Listening on /dev/input/event1 /dev/input/event0
68 1939 1802 0 04:15 ? 00:00:00 hald-addon-acpi: listening on acpid socket /var/run/acpid.socket

just wondering if i really need them...

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Suspicious Processes

Nov 27, 2008

Well one of my servers has been under a DDoS attack for a while and I've been doing things to keep it down but there is a suspicious process that keeps running and I am guessing that is whats keeping the server load up because when I stop apache the load goes down but not for long.

The process is this:

Code:
/opt/adobe/fms/fmscore -adaptor _defaultRoot_ -vhost _defaultVHost_ -app registry -inst registry -tag -conf /opt/adobe/fms/conf/Server.xml -name _defaultRoot_:_defaultVHost_:registry:registry:

Does anyone know what this process is or how to block it?

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How Can I See What Processes Are Sleeping

Jul 11, 2008

I've found I've got tons of processes "sleeping" on my server, how do I view what processes are sleeping? Is there a command I can run that lists all sleeping (only) processes?

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Processes Eating Up Cpu

Feb 12, 2008

Got some processes that regularly eat up my cpu resources:

%CPU 36.0netstat -plan

%CPU 36.0 /usr/local/apache/bin/httpd -k start -DSSL

%CPU 6.2httpd [truncurl.com] [/leisha?.jpg]
Note leisha.jpg does not even exist!!

%CPU 7.0 /usr/local/bin/python2.4 -S /usr/local/cpanel/3rdparty/mailman/cron/disabled

Something is going seriously wrong with my server,
what can I do ?

My server is frequently down because of kmemsize errors and I'm sure something is misconfigured.

Will try to disable mailman now, pretty strange to find that in my log.

urrent Time: Tuesday, 12-Feb-2008 04:38:22 PST
Restart Time: Tuesday, 12-Feb-2008 04:11:28 PST
Parent Server Generation: 0
Server uptime: 26 minutes 53 seconds
Total accesses: 16026 - Total Traffic: 14.8 MB
CPU Usage: u1.97 s1.55 cu0 cs0 - .218% CPU load
9.94 requests/sec - 9.4 kB/second - 971 B/request
46 requests currently being processed, 20 idle workers ....

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Sleeping Processes

Feb 1, 2008

How do I get a list of just the sleeping processes on a Red Hat server?

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Too Many Sleeping Processes

Aug 18, 2007

Kernel Version(uname -r):
2.6.9-42.ELsmp

Hardware Information:
Intel C2D E6400
2GB DDRAM Memory
120GB EIDE Hard Drive

Software Version(if it is a specific peice of software causing problems)
IPB Forum Software

Control Panel(if any)
Plesk

A "ps -auxf" and/or a "top"(if possible)

Code:
[root@server ~]# ps -auxf
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.3/FAQ
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 1892 384 ? S 19:42 0:00 init [3]
root 2 0.0 0.0 0 0 ? S 19:42 0:00 [migration/0]
root 3 0.0 0.0 0 0 ? SN 19:42 0:00 [ksoftirqd/0]
root 4 0.0 0.0 0 0 ? S 19:42 0:00 [migration/1]
root 5 0.0 0.0 0 0 ? SN 19:42 0:00 [ksoftirqd/1]
root 6 0.0 0.0 0 0 ? S< 19:42 0:00 [events/0]
root 8 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [khelper]
root 9 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [kacpid]
root 31 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [kblockd/0]
root 32 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [kblockd/1]
root 53 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [aio/0]
root 54 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [aio/1]
root 1858 0.0 0.0 0 0 ? S< 19:43 0:00 \_ [kauditd]
root 5022 0.0 0.0 0 0 ? S 19:52 0:00 \_ [pdflush]
root 7 0.0 0.0 0 0 ? S< 19:42 0:00 [events/1]
root 311 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [ata/0]
root 312 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [ata/1]
root 334 0.0 0.0 0 0 ? S< 19:42 0:00 \_ [kmirrord]
root 5021 0.0 0.0 0 0 ? S 19:52 0:00 \_ [pdflush]
root 33 0.0 0.0 0 0 ? S 19:42 0:00 [khubd]
root 52 0.6 0.0 0 0 ? S 19:42 0:54 [kswapd0]
root 200 0.0 0.0 0 0 ? S 19:42 0:00 [kseriod]
root 316 0.0 0.0 0 0 ? S 19:42 0:00 [scsi_eh_0]
root 317 0.0 0.0 0 0 ? S 19:42 0:00 [scsi_eh_1]
root 346 0.0 0.0 0 0 ? S 19:42 0:01 [kjournald]
root 1427 0.0 0.0 2576 296 ? S<s 19:43 0:00 udevd
root 1931 0.0 0.0 0 0 ? S 19:43 0:00 [kjournald]
root 2525 0.0 0.0 3400 256 ? Ss 19:43 0:00 cpuspeed -d -n
root 2526 0.0 0.0 3400 252 ? S 19:43 0:00 \_ cpuspeed -d -n
root 2875 0.0 0.0 1644 460 ? Ss 19:43 0:00 syslogd -m 0
root 2879 0.0 0.0 2544 340 ? Ss 19:43 0:00 klogd -x
root 2889 0.0 0.0 3252 284 ? Ss 19:43 0:00 irqbalance
rpc 2907 0.0 0.0 2136 336 ? Ss 19:43 0:00 portmap
root 2926 0.0 0.0 2784 440 ? Ss 19:43 0:00 rpc.statd
root 2954 0.0 0.0 5252 160 ? Ss 19:43 0:00 rpc.idmapd
root 3021 0.0 0.0 2472 424 ? S 19:43 0:00 /usr/sbin/smartd
root 3030 0.0 0.0 3048 312 ? Ss 19:43 0:00 /usr/sbin/acpid
root 3039 0.0 0.0 8816 852 ? Ss 19:43 0:00 cupsd
root 3114 0.0 0.0 4932 480 tty8 Ss+ 19:43 0:00 /bin/bash
root 3252 0.0 0.0 5500 948 ? Ss 19:43 0:00 /usr/sbin/sshd
root 4926 0.0 0.1 9852 2456 ? Ss 19:47 0:02 \_ sshd: root@pts/0,pts/1
root 4930 0.0 0.0 4452 1400 pts/0 Ss 19:48 0:00 \_ -bash
root 5029 0.1 0.0 2812 984 pts/0 S+ 19:54 0:13 | \_ top -c
root 4968 0.0 0.0 5276 1408 pts/1 Ss 19:49 0:00 \_ -bash
root 13543 0.0 0.0 3868 820 pts/1 R+ 21:57 0:00 | \_ ps -auxf
root 5656 0.0 0.0 4520 1244 ? Ss 20:18 0:00 \_ /usr/libexec/openssh/sftp-server
root 3265 0.0 0.0 3476 656 ? Ss 19:43 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid
root 3291 0.0 0.0 5296 580 ? S 19:43 0:00 /usr/lib/courier-imap/couriertcpd -address=0 -stderrlogger=/usr/sbin/courierlogger -stderrloggername=imapd -maxproc
root 3293 0.0 0.0 4884 464 ? S 19:43 0:00 /usr/sbin/courierlogger imapd
root 3303 0.0 0.0 3956 512 ? S 19:43 0:00 /usr/lib/courier-imap/couriertcpd -address=0 -stderrlogger=/usr/sbin/courierlogger -stderrloggername=imapd-ssl -max
root 3305 0.0 0.0 4168 208 ? S 19:43 0:00 /usr/sbin/courierlogger imapd-ssl
root 3313 0.0 0.0 5300 512 ? S 19:43 0:00 /usr/lib/courier-imap/couriertcpd -address=0 -stderrlogger=/usr/sbin/courierlogger -stderrloggername=pop3d -maxproc
root 3315 0.0 0.0 5180 208 ? S 19:43 0:00 /usr/sbin/courierlogger pop3d
root 3324 0.0 0.0 3524 512 ? S 19:43 0:00 /usr/lib/courier-imap/couriertcpd -address=0 -stderrlogger=/usr/sbin/courierlogger -stderrloggername=pop3d-ssl -max
root 3326 0.0 0.0 5260 208 ? S 19:43 0:00 /usr/sbin/courierlogger pop3d-ssl
root 3336 0.0 0.0 2604 220 ? Ss 19:43 0:00 gpm -m /dev/input/mice -t exps2
named 3365 0.0 0.0 47804 1552 ? Ssl 19:43 0:00 /usr/sbin/named -u named -c /etc/named.conf -u named -t /var/named/run-root
root 3431 0.0 0.0 5492 476 ? S 19:43 0:00 /bin/sh /usr/bin/mysqld_safe --defaults-file=/etc/my.cnf --pid-file=/var/run/mysqld/mysqld.pid
mysql 3461 2.3 1.7 180312 36012 ? Sl 19:43 3:06 \_ /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-file
qmails 3485 0.0 0.0 2816 408 ? S 19:43 0:00 qmail-send
qmaill 3487 0.0 0.0 3364 392 ? S 19:43 0:00 \_ splogger qmail
root 3488 0.0 0.0 3432 192 ? S 19:43 0:00 \_ qmail-lspawn ./Maildir/
qmailr 3489 0.0 0.0 2340 320 ? S 19:43 0:00 \_ qmail-rspawn
qmailq 3490 0.0 0.0 2960 264 ? S 19:43 0:00 \_ qmail-clean
postgres 3533 0.0 0.0 19968 964 ? S 19:44 0:00 /usr/bin/postmaster -p 5432 -D /var/lib/pgsql/data
popuser 3549 0.0 0.0 28160 1112 ? Ss 19:44 0:00 /usr/bin/spamd --username=popuser --daemonize --nouser-config --helper-home-dir=/var/qmail --max-children 5 --creat
popuser 3550 0.0 0.0 28160 360 ? S 19:44 0:00 \_ spamd child
popuser 3551 0.0 0.0 28160 360 ? S 19:44 0:00 \_ spamd child
popuser 3552 0.0 0.0 28160 360 ? S 19:44 0:00 \_ spamd child
popuser 3553 0.0 0.0 28160 360 ? S 19:44 0:00 \_ spamd child
popuser 3554 0.0 0.0 28160 360 ? S 19:44 0:00 \_ spamd child
root 3638 0.0 0.0 36808 836 ? Ss 19:44 0:00 /usr/local/psa/admin/bin/httpsd
psaadm 3643 0.0 1.3 48492 27292 ? S 19:44 0:01 \_ /usr/local/psa/admin/bin/httpsd
psaadm 4927 0.0 0.6 42516 13556 ? S 19:48 0:00 \_ /usr/local/psa/admin/bin/httpsd
root 3899 0.0 0.0 5292 512 ? Ss 19:44 0:00 crond
root 3917 0.0 0.0 2800 328 ? Ss 19:44 0:00 /usr/sbin/atd
dbus 3931 0.0 0.0 3272 312 ? Ss 19:44 0:00 dbus-daemon-1 --system
root 3953 0.0 0.0 8380 1368 ? Ss 19:44 0:00 hald
root 4022 0.0 0.0 2284 292 tty1 Ss+ 19:44 0:00 /sbin/mingetty tty1
root 4023 0.0 0.0 3188 292 tty2 Ss+ 19:44 0:00 /sbin/mingetty tty2
root 4024 0.0 0.0 1724 292 tty3 Ss+ 19:44 0:00 /sbin/mingetty tty3
root 4025 0.0 0.0 3012 292 tty4 Ss+ 19:44 0:00 /sbin/mingetty tty4
root 4026 0.0 0.0 1924 292 tty5 Ss+ 19:44 0:00 /sbin/mingetty tty5
root 4027 0.0 0.0 3276 292 tty6 Ss+ 19:44 0:00 /sbin/mingetty tty6
root 5067 0.0 0.6 30840 13108 ? Ss 20:10 0:00 httpd -k start
apache 5068 0.0 0.2 21704 4800 ? S 20:10 0:00 \_ httpd -k start
apache 9257 1.9 1.2 46684 25732 ? S 21:06 1:01 \_ httpd -k start
apache 9675 1.9 1.2 46492 25892 ? S 21:11 0:54 \_ httpd -k start
apache 10137 1.5 1.2 46532 25944 ? S 21:16 0:38 \_ httpd -k start
apache 10556 2.0 1.2 46332 25732 ? S 21:21 0:44 \_ httpd -k start
apache 10627 1.5 1.2 46932 25980 ? S 21:21 0:33 \_ httpd -k start
apache 10633 1.8 1.2 46640 26052 ? S 21:21 0:39 \_ httpd -k start
apache 10727 2.0 1.2 46312 25360 ? S 21:22 0:43 \_ httpd -k start
apache 10734 2.1 1.2 47100 26144 ? S 21:22 0:44 \_ httpd -k start
apache 11350 1.9 1.2 46048 25444 ? S 21:29 0:32 \_ httpd -k start
apache 11352 1.7 1.1 45764 24804 ? S 21:29 0:28 \_ httpd -k start
apache 11625 1.8 1.2 46344 25380 ? S 21:32 0:27 \_ httpd -k start
apache 12100 1.2 1.1 45220 24244 ? S 21:37 0:15 \_ httpd -k start
apache 12273 1.5 1.2 46028 25428 ? S 21:39 0:16 \_ httpd -k start
apache 12511 1.6 1.2 46444 25468 ? S 21:42 0:15 \_ httpd -k start
apache 12816 2.1 1.1 45372 24680 ? S 21:46 0:13 \_ httpd -k start
apache 12896 1.7 1.1 44264 23292 ? S 21:48 0:09 \_ httpd -k start
apache 13096 1.6 1.2 46684 25704 ? S 21:51 0:06 \_ httpd -k start
apache 13102 1.7 1.1 44272 23300 ? S 21:51 0:06 \_ httpd -k start
apache 13320 1.2 1.0 42392 21408 ? S 21:54 0:02 \_ httpd -k start
apache 13344 0.9 1.0 41808 20812 ? S 21:54 0:01 \_ httpd -k start

vmstat 5 5(if possible):

Code:
[root@server ~]# vmstat 5 5
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 0 346036 1017716 19312 331832 48 145 73 189 606 190 16 2 75 7
1 0 346036 1015972 19320 331824 0 0 9 82 1189 494 34 3 63 0
0 0 346036 1008156 19332 332072 0 0 20 134 1364 594 36 3 61 0
1 0 346036 1009820 19340 332064 0 0 0 91 1153 300 12 1 87 0
0 0 346036 1009844 19348 332056 0 0 1 83 1165 216 13 1 87 0

Linux Distro and Version
Linux 2.6.9-42.ELsmp

Log File(s)

Problem:

Tasks: 580 total, 1 running, 579 sleeping, 0 stopped, 0 zombie

I keep getting too many sleeping processes (300-500) - making the load shoot to 20-50 within 30 minutes.

I stop apache, and restart it in 5 minutes, everythings fine.

Cycle repeats.

Where can I stop this? By editing the httpd.conf file?

Which setting would it be under?

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Why So Many Httpd Processes

Apr 18, 2007

I was wondering why are there so many Httpd processes running?

Code:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 4808 656 ? Ss Apr17 0:00 init [3]
root 5579 0.0 0.0 3660 580 ? Ss Apr17 0:00 syslogd -m 0
named 5596 0.0 0.0 51260 3064 ? Ssl Apr17 0:00 /usr/sbin/named -u named -n1 -c /etc/named.conf -u named -t /
root 5612 0.0 0.0 23000 1228 ? Ss Apr17 0:00 /usr/sbin/sshd
root 5620 0.0 0.0 8748 908 ? Ss Apr17 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid
root 5679 0.0 0.0 6432 1192 ? S Apr17 0:00 /bin/sh /usr/bin/mysqld_safe --defaults-file=/etc/my.cnf --pi
mysql 5713 1.2 1.0 152112 43796 ? Sl Apr17 28:39 /usr/libexec/mysqld --defaults-file=/etc/my.cnf --basedir=/us
qmails 5771 0.0 0.0 2612 492 ? S Apr17 0:00 qmail-send
qmaill 5773 0.0 0.0 2560 496 ? S Apr17 0:00 splogger qmail
root 5774 0.0 0.0 2600 400 ? S Apr17 0:00 qmail-lspawn ./Maildir/
qmailr 5776 0.0 0.0 2600 432 ? S Apr17 0:00 qmail-rspawn
qmailq 5777 0.0 0.0 2556 380 ? S Apr17 0:00 qmail-clean
root 5798 0.0 0.0 9740 944 ? Ss Apr17 0:00 crond
root 27839 0.0 0.4 165396 16396 ? Ss 18:09 0:00 /usr/sbin/httpd
apache 27853 0.5 0.4 225028 19380 ? S 18:09 0:18 /usr/sbin/httpd
apache 27855 0.5 0.4 223784 18060 ? S 18:09 0:21 /usr/sbin/httpd
apache 27861 0.5 0.4 224336 18696 ? S 18:10 0:19 /usr/sbin/httpd
apache 27862 0.5 0.4 223276 17408 ? S 18:10 0:19 /usr/sbin/httpd
apache 27876 0.3 0.4 223892 18248 ? S 18:10 0:13 /usr/sbin/httpd
apache 27877 0.5 0.4 223936 18284 ? S 18:10 0:18 /usr/sbin/httpd
apache 27878 0.4 0.4 222672 16728 ? S 18:10 0:15 /usr/sbin/httpd
apache 27879 0.2 0.4 224328 18588 ? S 18:10 0:08 /usr/sbin/httpd
apache 27880 0.5 0.4 224164 18528 ? S 18:10 0:20 /usr/sbin/httpd
apache 27915 0.2 0.4 224072 18380 ? S 18:10 0:10 /usr/sbin/httpd
apache 27916 0.5 0.5 226436 20704 ? S 18:10 0:18 /usr/sbin/httpd
apache 27917 0.5 0.4 223208 17236 ? S 18:10 0:19 /usr/sbin/httpd
apache 31980 0.4 0.4 223152 17156 ? S 18:31 0:09 /usr/sbin/httpd
apache 32121 0.3 0.5 226344 20612 ? S 18:32 0:07 /usr/sbin/httpd
apache 32205 0.6 0.4 224272 18616 ? S 18:33 0:13 /usr/sbin/httpd
apache 1749 0.4 0.4 224520 18896 ? S 18:42 0:07 /usr/sbin/httpd
apache 1752 0.5 0.4 223272 17204 ? S 18:42 0:09 /usr/sbin/httpd
apache 1759 0.6 0.4 223316 17344 ? S 18:42 0:11 /usr/sbin/httpd
apache 1760 0.6 0.4 222940 16960 ? S 18:42 0:10 /usr/sbin/httpd
apache 1789 0.3 0.4 223372 17392 ? S 18:42 0:06 /usr/sbin/httpd
apache 1893 0.4 0.4 223256 17264 ? S 18:43 0:06 /usr/sbin/httpd
root 3469 0.0 0.0 41260 3036 ? Ss 18:47 0:00 sshd: root@pts/0
root 3478 0.0 0.0 6588 1524 pts/0 Ss 18:47 0:00 -bash
apache 5175 0.7 0.4 171244 17208 ? S 18:52 0:07 /usr/sbin/httpd
apache 9237 0.7 0.4 223288 17236 ? S 19:08 0:00 /usr/sbin/httpd
apache 9260 0.2 0.3 170156 15756 ? S 19:08 0:00 /usr/sbin/httpd
apache 9454 0.7 0.3 170576 16128 ? S 19:09 0:00 /usr/sbin/httpd
root 9558 0.0 0.0 5484 836 pts/0 R+ 19:10 0:00 ps -aux
thanks!

And I just upgraded my Vps to 256mb how does the new spec compare to other 256 vps systems:

Code:
Processing UBC version 2.5 for VEID: 44763202
Wed Apr 18 19:17:27 CEST 2007 s15248973.onlinehome-server.com
19:17:27 up 1 day, 14:39, 1 user, load average: 0.49, 0.41, 0.30
-----------------------------------------------
****** vmguarpages and oomguarpages limits are unspecified
****** each VE privvmpages limit should be <= 0.6 * RAM (=1228 MB), probably [much] lower.
563 MB Allocation Limit [privvmpages limit]
****** only high value processes have a chance in this range
****** having this safety range is important to permit critical processes
512 MB Allocation Barrier [privvmpages barrier]
****** allocation requests in this range have a chance
64 MB Allocation Guarantee [vmguarpages barrier]
****** allocation will succeed in this range
256 MB Memory Guarantee [oomguarpages barrier]
416 MB ( 419 MB Max) page memory allocated [privvmpages held]
229 MB ( 231 MB Max) memory + swap used [oomguarpages held]
229 MB ( 231 MB Max) page memory used [physpages held]
33 MB ( 33792 KB) kernel memory limit [kmemsize limit]
****** a safety range here, between limit and barrier, is important
30 MB ( 30720 KB) kernel memory barrier [kmemsize barrier]
16 MB ( 16497 KB) kernel memory used [kmemsize held]
0 MB ( 910 KB) buffer memory used [*buf held]
-----------------------------------------------
Used : Max_Used : Limit for Other Resources
1779 1785 8192 numfile
6 8 413 numflock
14 14 150 numiptent
11 15 720 numothersock
54 55 128 numproc
1 1 32 numpty
0 1 512 numsiginfo
46 47 720 numtcpsock
-----------------------------------------------
Fail Count conditions: 1
privvmpages 106709 107460 131072 144180 870

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VPS & Background Processes

Dec 8, 2007

On jaguarpc.com, their terms of service state,

"We do not allow programs to run continually in the background. This is to minimize system resources used and operational maintenance needed. We do not allow any chat or topsite programs on our servers other than the ones we pre-install for our clients to use. IRC: We currently DO NOT allow IRC or IRC bots to be operated on our network."

I thought the whole point of using a VPS was so you could run a continuous application (like a chat/game/etc server)? Why are so many VPS services against IRC (the chat server I use is not IRC based, but I just think its wierd so many prohibit IRC)

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Spamd Processes

Oct 15, 2007

I'm having a problem with one user account, every 5-10 minutes a spamd process of this user gets locked using 60-90% cpu and never ends. If I don't kill the process another one does the same and they all get locked causing very high loads

I reinstalled exim but it did nothing

The problem persisted even when this user's account was suspended

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Crond Multiple Processes

Aug 16, 2007

I'm sure this isn't normal, but I have to ask. Is this normal :

...and if not, why on earth will it be doing this? ....

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How To Disbale Courierlogger Processes

May 25, 2009

We have one centos vps, with whm 11 on it. This VPS continuously have following process running and that is eating too much of memory on the server

1953 root 18 0 1580 416 348 S 0 0.0 0:00.00 courierlogger
1954 root 15 0 1688 544 464 S 0 0.0 0:00.00 couriertcpd
1960 root 25 0 1576 336 280 S 0 0.0 0:00.00 courierlogger
1961 root 25 0 1688 520 440 S 0 0.0 0:00.00 couriertcpd
1969 root 18 0 1584 420 348 S 0 0.0 0:00.00 courierlogger
1972 root 15 0 1684 540 464 S 0 0.0 0:00.00 couriertcpd
1980 root 25 0 1576 336 280 S 0 0.0 0:00.00 courierlogger
1981 root 25 0 1688 516 440 S 0 0.0 0:00.00 couriertcpd
1989 root 25 0 1580 420 348 S 0 0.0 0:00.00 courierlogger

how to disable this processes, because after killing it, it again starts.

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May 28, 2009

OS: CentOS 5
Software: Apache 2 / PHP CGI 5.8 / suPHP

Today I took the leap and switched to suPHP, rather than the Apache module. This is just what suited us best for hosting our own websites, keeping them more isolated from eachother bar a certain shared directory.

All is great, apart from I'm now noticing Zombie processes all of the time. These processes do seem to go away though, if I watch top the amount of Zombie processes will go up and down between 0 and 10.

Code:
17471 gnation 15 0 0 0 0 Z 1 0.0 0:00.03 php-cgi <defunct>
17463 gnation 16 0 0 0 0 Z 1 0.0 0:00.02 php-cgi <defunct>
17467 gnation 16 0 0 0 0 Z 1 0.0 0:00.02 php-cgi <defunct>

Are these processes a problem, considering they do leave after a while? I've read up about Zombie processes and it would seem that as long as they are closing at some point, instead of hanging around, then that's fine. Is this supposed to happen in my setup?

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Nov 17, 2008

how can i discover hidden processes running? Already running rkhunter, chrootkit.
[root@kenny ~]# ps auxfww
USER PID %CPU %MEM SIZE RSS TTY STAT START TIME COMMAND
Segmentation fault
[root@kenny ~]#

This just appen when i use flag "f = --full". Some running process causing this.

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