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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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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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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Apr 23, 2008
i am facing slight problem with one of my VPSes. It had happened earlier also but had got resolved automatically.
Please see this screenshot: [url]
i know that the server load is not that great to cause this much SWAP usage. i think this is because of the processes not getting killed.
UPDATE: here is the screenshot of my other server with the same provider. which is not really overloaded but i think is facing the same problem of processes not getting killed [url]
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Jul 8, 2008
Do any1 know how to change jail shell to normal shell?
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Apr 13, 2009
We have many process under nobody user, so our server load is Very high and its not good.
Here is our server log about one of this process:
Code:
Time: Mon Apr 13 11:36:33 2009 +0430
PID: 4415
Account: nobody
Uptime: 25532 seconds
Executable:
/usr/local/lsws/bin/lshttpd.4.0
Command Line (often faked in exploits):
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Jul 9, 2007
i have always this process in my server ;
Code:
2 root RT 0 0 0 0 S 0 0.0 0:00.02 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:00.08 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:06.43 migration/1
5 root 34 19 0 0 0 S 0 0.0 0:00.31 ksoftirqd/1
6 root RT 0 0 0 0 S 0 0.0 0:05.22 migration/2
7 root 34 19 0 0 0 S 0 0.0 0:00.82 ksoftirqd/2
8 root RT 0 0 0 0 S 0 0.0 0:01.41 migration/3
9 root 34 19 0 0 0 S 0 0.0 0:00.08 ksoftirqd/3
what doeas mean , and for wich application are this proccess
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Sep 30, 2007
my server in under attack of shell
how can i find shell code in my server? (c99 ...)
is any anti virus or open source tools to find it
how can i disable shell function?
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May 10, 2007
I have spare dedicated machine.
I want to allow user to run few processes on machine (debian etch).
I configurated limits at /etc/security/limits.conf for group "shell".
When I attached user to group shell, limits work well, but he still can look
everywhere on system. (he can do cat /home/somefile.txt, even owned by root).
Is there any method, software to limit user to acces only their home directories?
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May 18, 2009
How can track and follow a process id.
For example i need to know what is following process:
14764 root 39 15 11712 9.8m 1668 R 20 0.1 0:14.22 perl
I need to know wich/where file used perl with process id 14764
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Oct 30, 2009
I am noticing that the kacpid process causing high cpu load.
What does kacpid do? Is there a way to fix for this problem?
Quote:
# ps aux|grep kacpid
root 29 59.6 0.2 0 0 ? S< 22:13 42:20 [kacpid]
Quote:
# lsof -p 29
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
kacpid 29 root cwd DIR 8,2 4096 2 /
kacpid 29 root rtd DIR 8,2 4096 2 /
kacpid 29 root txt unknown /proc/29/exe
Quote:
# ls -l /proc/29/exe
/bin/ls: cannot read symbolic link /proc/29/exe: No such file or directory
lrwxrwxrwx 1 root root 0 Oct 30 22:13 /proc/29/exe
Quote:
# uname -r
2.6.18-164.el5PAE
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Mar 17, 2008
Ive recently installed installed and configured stuff on my new box but after, I realised abnormal memory usage.
Mysql server is taking 256mb, there are somewhere between 6 and 10 apache process taking up at least 40mb each.
Furthermore, when I do: top, I see that the memory usage is increasing by about 120ko each 3 sec.
I am running centos 5.1 and have a load of 0. Basically, there is no one on the server appart from me.
On the server I have at home running debian, I run all thoose thing and it take up 200mb
max.
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Jan 16, 2008
write me a daemon that will run every 10 seconds.
If <process> has failed or run into issues, restart the process and then email me with details.
After installing LiteSpeed on my server with cPanel, a few processes have been having issues.
<process> = /opt/lsws/bin/lshttpd, pureftpd, named
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May 13, 2008
I'd like to put up here a base question which I hope some will have the goodwill to answer even though it might touch some business secrecies.
We're a gameserver hoster since around ten years, running also vserver products since over two years now. Renting a few Racks in Europe since some time we're a bit in a question mark how rootserver companies deal with the initial hardware costs for every new customer.
Rackspace and today specially power costs are huge cash eaters here in Europe. Dedicated Rootservers are huge space & power consumers per customer ratio. The initial Hw costs for every new rootserver customer might be covered after 4-6 months (if the machine has to be bought newly), adding the bandwidth and power costs it might take up to 8-9 months until a benefit might come in.
Is this the business normality in the rootserver market (waiting 9 months for any benefit, or counting only on the benefit of the 2nd customer using the older Hw), or are the better ways to handle those "initial" costs or keep them affordably low?
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Feb 19, 2008
I am showing hundreds of running processes for:
/usr/local/apache/bin/httpd -DSSL
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Apr 16, 2008
In My server i Can see lotz of /usr/local/apache/bin/httpd -k start -DSSL Process also some time it lead to crash of my server,is this caused to improper httpd.con file iam have 200-250 online users here i will give my apachi cofig file
KeepAlive Off
MaxKeepAliveRequests 200
KeepAliveTimeout 15
StartServers 20
MinSpareServers 30
MaxSpareServers 40
MaxClients 600
MaxRequestsPerChild 250
in correct optimization for my apachi also my processer is dual xenon
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Aug 12, 2008
Whats is following peocess?
2011 root 0 -20 0 0 0 S 1 0.0 0:38.52 loop0
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Mar 24, 2008
Is it normal for PHP to spike in cpu usage often? Which setting in php.ini can affect the cpu usage?
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Nov 1, 2007
how to sort this?
Top Process %CPU 98.9 ./dialog --clear --backtitle Zend Optimizer Installation --title Zend Optimizer 3.2.2 --msgbox ?Welcome to the Zend Optimizer 3.2.2 Installation!??For more information regarding this procedure, please see the?Zend Optimizer Installation Guide.? 0 0
Top Process %CPU 98.8 ./dialog --clear --backtitle Zend Optimizer Installation --title Zend Optimizer 3.2.2 --msgbox ?Welcome to the Zend Optimizer 3.2.2 Installation!??For more information regarding this procedure, please see the?Zend Optimizer Installation Guide.? 0 0
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Nov 15, 2007
My hosting company is telling me that I have getting frozen processes on my VPS that is causing apache to stop responding.
My VPS is CentOS, with 512 megs of memory and my website is a Vbulletin forum. I have several add-ons installed on vbulletin, and if one of those are causing the problem, how do I figure it out?
When http stops responding, I can access the server with putty on ssh. Running the "top" command, it shows that I still have 100+ megs of memory free and the processor is barely being used.
This has happened twice in just 2 - 3 days. This morning, I asked my hosting company what can be causing this, but no answer so far.
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Sep 4, 2007
I run a dedicated server, Running
CentOS 4.5 final
Apache 2.0.59
php 4.3.11
MySQL 4.1.20
I have a user who has been importing large sql databases and this causes the cpu to run at 80% - 90% this in turn causes high loads and sometimes causing the server to crash.
Is there a way to automatically limit or control how much the process can use or stop the process to allow the server to recover.
Just trying to put some sort of safe guard in place
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Feb 14, 2007
How do I trace what user this is?
Code:
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME CPU COMMAND 9488 nobody 25 0 1612 1280 1108 S 21.1 0.2 619:37 1 perl bodyb3 200.101.193.42 0 5000
I also ran netstat -n and found this:
Code:
udp 15184 0 server.host.com:55936 ns1.datacenter.net:domain ESTABLISHED
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Mar 15, 2007
I am having only 14 connections, but having many httpd processes.
root@server [~]# pidof httpd
1544 1498 1475 1239 835 686 684 572 570 535 478 32602 32601 32597 32544 32106 32 085 32082 30538 30536 29612 28981 28980 28978 28785 28778 28775 28759 28741 2843 4 28431 28428 28420 28394 28192 28116 27782 27694 27693 27692 27442 27399 27299 27288 27276 27262 27257 27252 27248 27146 27043 26970 26486 26385 26049 26023 25 703 25679 25621 24603 24602 24600 24526 22025 21963 21950 21915 21870 21858 2179 4 21697 21673 21525 21223 21211 21001 20784 20783 20780 20721 20713 20704 20696 20613 20605 20603 20179 19909 19718 19711 19530 19463 19462 19460 19456 19424 19 346 19283 19258 19232 19140 19123 19088 17926 17925 17924 17421 17420 17419 1505 4 15053 15052 14854 14676 14458 14457 14439 14343 14342 14340 14336 14267 14189 13899 13880 10021 10016 10014 10012 10011 10000 9999 9992 9991 9990 9989 9988 99 86 9979 9978 9977 9976 9973 9972 9970 9962 9961 9960 9959 9957 10293
root@server [~]# netstat -n | grep :80 | wc -l
14
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Oct 24, 2007
We are using FreeBsd with Cpanel.
Some one has upload some scripts,they are running and attacking
to other systems.
last pid: 64017; load averages: 59.59, 60.75, 63.04 up 19+22:52:28 12:03:45
457 processes: 61 running, 315 sleeping, 81 zombie
CPU states: 52.4% user, 0.0% nice, 47.6% system, 0.0% interrupt, 0.0% idle
Mem: 465M Active, 212M Inact, 236M Wired, 22M Cache, 111M Buf, 62M Free
Swap: 2048M Total, 458M Used, 1590M Free, 22% Inuse
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
3282 root 128 0 37536K 30520K RUN 3:49 4.79% 4.79% perl
62953 root 128 0 30284K 25248K RUN 0:05 1.90% 1.90% perl
49249 root 128 0 33720K 28876K RUN 0:46 1.86% 1.86% perl
2981 root 128 0 40928K 30724K RUN 3:56 1.56% 1.56% perl
76809 nobody 127 0 4148K 2080K RUN 13:52 1.42% 1.42% perl5.8.8
19633 nobody 127 0 4148K 2128K RUN 2:34 1.42% 1.42% perl5.8.8
57451 nobody 126 0 4148K 2072K RUN 39:24 1.22% 1.22% perl5.8.8
76599 nobody 126 0 4148K 2080K RUN 13:53 1.22% 1.22% perl5.8.8
76966 nobody 126 0 4148K 2080K RUN 14:01 1.17% 1.17% perl5.8.8
60286 nobody 126 0 4148K 2072K RUN 38:42 1.12% 1.12% perl5.8.8
77488 nobody 126 0 4148K 2080K RUN 13:48 1.12% 1.12% perl5.8.8
77697 nobody 126 0 4148K 2080K RUN 13:47 1.12% 1.12% perl5.8.8
56573 nobody 126 0 4148K 2096K RUN 39:55 1.07% 1.07% perl5.8.8
58126 nobody 126 0 4148K 2072K RUN 39:11 1.07% 1.07% perl5.8.8
76513 nobody 126 0 4148K 2080K RUN 13:58 1.07% 1.07% perl5.8.8
76807 nobody 126 0 4148K 2080K RUN 13:57 1.07% 1.07% perl5.
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Jun 7, 2009
For security reason I have these php functiosn disabled:
show_source, system, shell_exec, exec, popen, proc_open, procopen, passthru
Can anyone please tell me whether if it will prevent shell scripts from working?
They can still upload the shells but cant read/write/execute commands in 777 directories?
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Apr 16, 2005
I'm having a problem connecting to SSH/Shell on my server. I get the Login Prompt, but when i enter the User/Pass i just get "SSH-2.0-OpenSSH_3.6.1p2", everything under that is blank.
I've restarted the SSH Server and made sure the account i was using was set to use Normal Shell (not jailed). What could be the problem?
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Oct 8, 2006
I was wondering if it were possible to chmod a directory that is set to a low number to 777 using a shell or command and if so can anyone point me in the right direction as to how to go about doing so ??? I am trying to learn a little and i pefer using my browser to edit files rather then a ftp client.
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Jun 9, 2007
I was just wondering if anyone is aware of Linux VPS or shell account providers with servers that are physically located in Pennsylvania. The only two I've come across so far are Nocster and VPS Village.
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Oct 8, 2009
I keep seeing web hosts where it says that there is/isn't shell access, etc. What's shell access and what do you do with it in/with a web host?
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May 27, 2008
Is there a such thing? I use shell mainly for whois info, tracing, telnet for email issues, etc etc. Is there a 'toolkit' for such things?
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