Plesk 11.5 - Apache Memory Usage High

Jul 20, 2014

We are currently running plesk 11.5 and over the last few months, the apache memory usage has been very high. On investigation we have gone through the logs and we can't find a cause.

I can issue a service httpd restart and the memory drops for about 30 minutes and then we see the apache memory grow to almost 1.5 - 2GB. Why this keeps happening?

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Plesk 12.x / Linux :: High Memory Usage - Swap So High

Nov 14, 2014

This is my free -m

total used free shared buffers cached
Mem: 1998 1903 95 0 45 542
-/+ buffers/cache: 1315 683
Swap: 2662 36 2625

Not good ....

I got 5 wordpress and 5 statics website on this server and 100 visitors by 24H00 each day.

Question 1 : Why the memory is so low and the swap so high ?
Question 2 : Why i don't find high usage process in top command ?
Question 3 How can i resolve this problem ?

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Mar 28, 2009

Am using Hypervm,my all vms are not using more than 512 MB memory but when i click on server as localhost the there is show maximum memory usage I have total 8 GB it always show 5-6 GB usage and never drop down, How can I fix this matters?

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High Memory Usage

Oct 11, 2009

I have a Drupal site with around 1000 visitors/day on a basic VPS. (HyperVM with lxadmin) Burstable RAM is 384MB and my site reachs it.

is this normal for a site like this?

anything that I can do to decrease the memory usage?

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High Memory Usage

Aug 30, 2007

I purchased a VPS at wiredtree to upload a site that is in the works so that it would be "ready" once it was launched (had it sitting on a shared server before). So I have this domain on there, as well as a small wordpress blog. In total I'm get a very miniscule trickle of visitors to these websites (as they are not officially launched), around 100 visits per day, many of which are only 1 pageview visits.

My problem is, my server is already idling over its memory limit of 256mb. This is causing major slowdowns, and processes like cpanel are constantly be killed and I can't login.

Does anyone have any idea what is causing my high memory usage? I just can't image that the visitors I am getting are doing much, as for the majority of the day I have absolutely no one viewing my domains, yet my memory usage is still over the limit.

Wiredtree support says its up to me to optimize my msql/php scripts etc for low mem usage, but I don't see how this will help when there is no one using them in the first place.

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Kloxo High Memory Usage

Oct 24, 2009

I installed kloxo on a fresh CentOS installation, not the hostinabox template

I have high memory usage though as seen here

[url]

Apache appears to be running 2 or 3 times? How do I remedy this?

[url]

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High Dom0 Memory Usage On Xen

Nov 29, 2008

I'm running hypervm on xen a centos 5 64 bit box.

The problem I'm having is that after a couple of hours of uptime Dom0 seems to have used up all of it's available memory i.e:

[root@------ ~]# free -m
total used free shared buffers cached
Mem: 1536 1516 19 0 993 247
-/+ buffers/cache: 275 1260
Swap: 16002 0 16002

I have disabled the memory balloon driver in the xen config and set dom0_mem=1536M in grub.conf, i.e:

default=1
timeout=1
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.18-92.1.18.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-92.1.18.el5 ro root=LABEL=/
initrd /initrd-2.6.18-92.1.18.el5.img
title CentOS (2.6.18-92.1.18.el5xen)
root (hd0,0)
kernel /xen.gz-2.6.18-92.1.18.el5 dom0_mem=1536M
module /vmlinuz-2.6.18-92.1.18.el5xen ro root=LABEL=/
module /initrd-2.6.18-92.1.18.el5xen.img

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Exceptionally High Memory Usage On My Dedicated

Oct 4, 2009

I'm currently running vBulletin & two wordpress powered blogs on my box. Number of simultaneous users is about 200~250 and about 15~20 logged in users.

The memory usage is constantly in the range of 1.8 GB - 2.00 GB. Considering that total physical RAM my box has is 2 GB, the memory usage, I believe is exceptionally high.

The same site was running very well on shared hosting environment and also on VPS [with just 512 MB RAM] very fine.

What should I do to bring the memory consumption to minimum (required to run the site well?)

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High Memory Usage - Cpanel Server

Jan 6, 2007

for the last few days, i am facing high memory usage up to 90%.

Memory usage get's high, even if i don't have many visitors online. I have to restart httpd to get the memory to normal. some times, server loads, get's high aswell.

In error logs (only unusual things i see):

Code:
[Sat Jan 6 10:37:04 2007] [error] mod_gzip: TRANSMIT_ERROR:ISMEM:104
[Sat Jan 6 10:37:25 2007] [error] mod_gzip: TRANSMIT_ERROR:ISMEM:104

# top:

Code:
top - 10:42:19 up 10:35, 1 user, load average: 22.95, 10.67, 9.79
Tasks: 318 total, 1 running, 317 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.7% us, 1.3% sy, 0.0% ni, 0.0% id, 61.9% wa, 36.1% hi, 0.0% si
Mem: 2009652k total, 1220736k used, 788916k free, 28756k buffers
Swap: 6224564k total, 135212k used, 6089352k free, 389768k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
6365 root 0 -20 0 0 0 D 40 0.0 3:01.33 loop0
4553 root 16 0 3112 1108 760 R 1 0.1 0:00.30 top
327 root 15 0 0 0 0 S 0 0.0 6:33.15 kjournald
3743 nobody 15 0 18592 7260 2320 S 0 0.4 0:00.21 httpd
3833 nobody 15 0 21664 10m 2780 D 0 0.5 0:00.94 httpd
3838 nobody 15 0 20472 9400 2664 S 0 0.5 0:00.18 httpd
3858 nobody 15 0 18876 7616 2388 S 0 0.4 0:00.82 httpd
3919 nobody 16 0 21492 10m 2432 D 0 0.5 0:00.82 httpd
3931 nobody 15 0 18976 8016 2716 D 0 0.4 0:00.45 httpd
4439 nobody 15 0 18892 7612 2368 S 0 0.4 0:00.16 httpd
4913 root 18 0 2512 292 244 D 0 0.0 0:00.24 sync
1 root 16 0 2484 488 456 S 0 0.0 0:06.16 init
2 root RT 0 0 0 0 S 0 0.0 0:00.11 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:06.66 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.16 migration/1
5 root 34 19 0 0 0 S 0 0.0 0:00.71 ksoftirqd/1
6 root 5 -10 0 0 0 S 0 0.0 0:14.59 events/0
7 root 5 -10 0 0 0 S 0 0.0 0:42.07 events/1
this looks suspisous to me:
6365 root 0 -20 0 0 0 D 40 0.0 3:01.33 loop0

as it's taking alot of memory. i don't see this before.

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High Server Load! Swap And Memory Usage

Nov 19, 2007

I have a linux server that is only hosting one site , and although the httpd and mysql are working well , then the server load is high and when I restart the server the server load is high till the swap accelerates to 100% and then it uses the memory alot.

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How We Can Up The Apache Memory Usage

Nov 18, 2008

my grunted memory for apatchi is 51 meg
i want make him 256meg
because the vps its alwayes down
see this please

HTML Code:
29890 nobody 0

2.5

0.1 /usr/local/apache/bin/httpd -k start -DSSL
31854 nobody 0

2.3

0.1 /usr/local/apache/bin/httpd -k start -DSSL
31766 nobody 0

1.8

0.1 /usr/local/apache/bin/httpd -k start -DSSL
32043 nobody 0

1.7

0.1 /usr/local/apache/bin/httpd -k start -DSSL
25921 nobody 0

1.4

0.1 /usr/local/apache/bin/httpd -k start -DSSL
32014 nobody 0

1.3

0.1 /usr/local/apache/bin/httpd -k start -DSSL
25998 nobody 0

1.3

0.1 /usr/local/apache/bin/httpd -k start -DSSL
30388 nobody 0

1.0

0.1 /usr/local/apache/bin/httpd -k start -DSSL

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Apache Memory Usage, Why So Different On 2 VPSs

Mar 24, 2009

I currently have 2 VPSs that I'm monitoring and I noticed that on one of them the memory usage is much higher than the other which doesn't make sense to me. I tracked the high memory usage to the Apache processes.

Here's the overview of the VPSs:

LiquidWeb VPS- 512MB RAM, 10 Sites with minimal usage.
Average httpd process (Owner Priority Cpu% Mem% Command):
nobody 0 0.0 1.2 /usr/local/apache/bin/httpd -k start -DSSL

Virpus VPS- 384MB RAM, 61 sites with moderate usage.
Average httpd process (Owner Priority Cpu% Mem% Command):
nobody 0 0.0 0.3 /usr/local/apache/bin/httpd -k start -DSSL

Both Apache configurations are identical, the only difference besides the hardware is that LiquidWeb runs CentOS4.7 and Virpus runs CentOS5.2, any ideas? It's not to big of a deal since I'm not near my limit for either of them but I was just curious.

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Average Apache CPU And Memory Usage

Aug 14, 2008

tell me what the average usage of the CPU and RAM be from apache?

User 'Nobody' (Which I presume is apache) is using 13% CPU and 38.98% of RAM. Is this normal or is it well overloaded?

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Apache Memory / Cpu Usage / Magento

Jul 31, 2014

I'm running a single Magento website with only around 150 products, and very low traffic, on a VPS with 2 Cores and 4GB of ram. However I am getting constant warning emails about high Apache Memory usage and High CPU usage.

The server and site were working fine, however since the server failed (Power cut on upgrade at the hosts end) and we rebuilt the website I'm getting these warnings, my host said it is just the website and the server needed upgrading... to which I did (server was a 1 core 2GB ram server). However since I've upgraded I'm still getting these warning emails.

Here is the latest one: URL...

Code:
4951 apache 20 0 441m 137m 6556 S 0.0 3.6 2:28.77 httpd
4952 apache 20 0 443m 139m 7168 S 0.0 3.6 2:43.72 httpd
7377 apache 20 0 358m 54m 6576 S 0.0 1.4 1:25.76 httpd
7692 apache 20 0 433m 129m 6588 S 0.0 3.4 1:20.64 httpd

[code]....

I'm really new to VPS's and plesk so I'm wondering what I can do to try and track down what is causing these high usage as I'm 100% certain the site was fine before. The server has default build both before and after the fail.

Server Information:
OSCentOS 6.5 (Final)
Panel version11.5.30 Update #47
2 Cores
4GB Ram

Are there any tools within plesk that I can use to see what is causing these issues? It's making the website load extremely slow.

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Apache Threads High Memory Use

May 29, 2007

In the last day or two I've been having issues with memory on one of by boxes.

Something eats it all up, so the OS starts swapping, the I/O wait shoots up, and soon the load is up in the hundreds and the thing is totally useless.

During the day today I've tracked the something to occational apache processes. It seems that occationally a thread is started which uses upwards of 150M of memory. These threads are obvioudly doing something heavyweight and take a while to complete. When I get a few of them running together it soons finishes off all my available memory. Below is an extract from top when a couple of these threads are running.

Code:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10230 nobody 25 0 197m 27m 9392 R 45.5 2.9 0:03.27 /usr/local/apache/bin/httpd -DSSL
10231 nobody 25 0 197m 25m 8376 R 52.8 2.7 0:01.60 /usr/local/apache/bin/httpd -DSSL
I was wondering if anyone could help out by suggesting some ways of tracking down what page/script it which uses so much memory. It's a cPanel server so it's not really practical to tail -f the apache logs (not knowing which account it is means I don't know which file to watch).

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Trojan Activity - Running Perl With High CPU Usage, With User Apache

Sep 5, 2007

Running programs named Perl with Heavy CPU usage, with the ownership of user apache.

We found the problem on Fedora 3 and Fedora 6.

In our case, it was the result of a Trojan activity.

Quick Solution

Check the cron jobs of user apache
crontab -u apache -e
*/1 * * * * perl /tmp/.tmp/tmpfile
delete the cronjob entry.
Also delete the file /tmp/.tmp/tmpfile
also added "apache" to the file /etc/cron.deny

That's all

Problem and solution in detail....

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Plesk 12.x / Windows :: High Cpu Usage And Methods To Understand What Website Is Involved

Jul 15, 2015

from about 3-4 days, the cpu of my server, from an average of 0-15% load, grew up to a constant 80-90-100% cpu load.

There were two processes called php-cgi.exe IWAM_PLESK(default) that, each one, constantly burned 30-40% of cpu load.

So, stopping websites one by one, I found the website that was the cause of the cpu overload.

On my "old" windows vps, there were processes called with the name of the website hosted (for example websitename_web.exe), so it was easy to immediately find exactly what website was involved in the hypotetical cpu or ram overload issue.

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Server High Load/high Mysql Usage

Jul 2, 2009

I have a site that is eating up my server resources and need to know what the best solution for this is. I'm thinking of getting another server just for mysql but do not know what specs the server should be to handle the current traffic/database load and have the site run smoothly without slowing down to a snail's pace.

An alternative is to get another server just for the videos being served and leave the database and html on the current server. This is where I'm stuck and don't know what route to take with this.

My current server stats:

Dual Xeon 5130
4GB RAM
250GB
50 Mbit/sec
CentOS 3.9

Website traffic stats:

15,000 visitors/day
150,000 pageviews/day
Serving videos

I've attached screenshots of top and bandwidth usage per day. Hopefully with this information you could tell me if I need another server or if there are any things I can do to the current server to help things move faster.

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Memory Usage :: Put More Content Into Memory?

Jul 16, 2009

I just got a new server Dual E5520 with 6GB RAM, SAS 15k rpm raid10. It's running well. However, the memory usage is just around 2.5GB, even when I have more traffic. Here is the kernel info

Quote:

# uname -a
Linux server2.[url]2.6.18-128.1.10.el5 #1 SMP Thu May 7 10:35:59 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

Any idea that we can put more content into memory?

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Memory Usage For XEN Vs. VOZ

Jun 23, 2009

It seems that a user may get more percentage of memory purchased for real use. I've got a xen VPS which has access to all 8 CPU cores. Guess this is a good thing to be able to burst CPU resources

[xwu@atom ~]$ cat /proc/cpuinfo | grep processor | awk '{a++} END {print a}'
8

But this requires lots of kthread running to be able to access all CPU resources, which in turn consumes quite some memory, a valuable, limited resource on a small VPS instance.

[xwu@atom ~]$ cat /proc/meminfo | grep Mem
MemTotal: 524288 kB
MemFree: 276128 kB

The output above is grathered when almost no other services are running except sshd.

While XEN VPS surely consumes more memory than OVZ VPS, I would suggest the Xen VPS can be built in such a way less memory is required to just do the housekeeping.

Of course, that would imply careful provisioning, maybe less "overselling" for the sake of lack of a term. The bottom line is how we can reduce the memory usage, while ensure individual VPS instance can still have fair share of CPU if needed.

Is there anyway in the VPS kernel config which can disable access to certain CPU core, thus reducing the number of kthreads and etc?

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Memory Usage On VPS

Dec 1, 2008

I do not know if i have problems with my vps but "top" output looks strange for me. It looks like apache processes have huge VIRT parameter and all processes have huge SWAP param.

My VPS 712 guaranteed and 1024 burstable. I'm running 10 virt hosts with very small traffic. Totally not more than 500 visits/day. Most of sites are static and only two are PHP.

Apache and PHP configuration are very standard.

Here is top output: ...

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Memory Usage

Jul 30, 2007

this is my machine's vmstat result

procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
1 1 0 1864 16352 34576 146252 0 3 541 106 146 142 6 23 71

I want to free some space

How can I do that?

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Nov 1, 2007

how much adding php to apache will increase memory usage on a VPS? This would be php5.

I need it to use phpMyAdmin to manage my MySQL database (actual site is running off tomcat but jspmyadmin won't work for some reason).

Or can someone recommend a database design tool (I've used toad data modeler before) which I can use on my home pc to generate SQL statements for execution on the server (and please don't say notepad).

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Memory Usage

Mar 10, 2007

We have a server that is rebooting, we saw that free memory reaches almost 0 before the server reboot.

im running a cpanel server on P4 3.6HT / 1GB RAM / load always under 1.0:

Apache
46.6 to 80 requests/sec - 183.7 kB/second - 4034 B/request

top - 11:07:15 up 21 min, 1 user, load average: 0.29, 0.38, 0.46
Mem: 1026348k total, 529632k used, 496716k free, 31148k buffers

Most processes are:
12239 nobody 15 0 49436 7324 3116 S 1 0.7 0:00.25 /usr/local/apache/bin/httpd -DSSL

Is the time to increase RAM server or would be a hardware problem?

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Aug 30, 2007

Those of you who work with shared hosting, how much memory per customer do you allow for PHP? What about for Ruby on Rails?

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Memory Usage

Jan 2, 2007

I am trying to run tomcat on my linux server and I am getting memory allocation error. When I see check memory usage it is full, but when I check the cpu usage it show as this:

load average: 0.00, 0.00, 0.00

When I run top command, I found tis.

16003 root 19 19 5492 5492 5040 D N 0.7 0.6 0:00 0 pkgacct - triwaste
1 root 8 0 476 432 412 S 0.0 0.0 0:35 0 init [3]
2 root 9 0 0 0 0 SW 0.0 0.0 0:00 0 keventd
3 root 19 19 0 0 0 SWN 0.0 0.0 0:00 0 ksoftirqd_CPU0
4 root 9 0 0 0 0 SW 0.0 0.0 12:09 0 kswapd
5 root 9 0 0 0 0 SW 0.0 0.0 0:00 0 bdflush
6 root 9 0 0 0 0 SW 0.0 0.0 4:16 0 kupdated
7 root 9 0 0 0 0 DW 0.0 0.0 40:29 0 kjournald
384 root 9 0 0 0 0 SW 0.0 0.0 0:00 0 kjournald
385 root 9 0 0 0 0 SW 0.0 0.0 8:05 0 kjournald
387 root 9 0 0 0 0 SW 0.0 0.0 2:45 0 loop0
642 root 8 0 800 752 692 S 0.0 0.0 0:02 0 xinetd -stayalive -pidfile /var/run/xinetd.pid
653 root 9 0 1324 1168 1128 S 0.0 0.1 0:44 0 /usr/sbin/sshd
920 named 9 0 4012 3488 2240 S 0.0 0.3 0:00 0 /usr/sbin/named -u named
921 named 9 0 4012 3488 2240 S 0.0 0.3 0:19 0 /usr/sbin/named -u named
922 named 9 0 4012 3488 2240 S 0.0 0.3 3:49 0 /usr/sbin/named -u named
923 named 9 0 4012 3488 2240 S 0.0 0.3 0:04 0 /usr/sbin/named -u named
924 named 9 0 4012 3488 2240 S 0.0 0.3 1:07 0 /usr/sbin/named -u named
1252 root 8 0 928 616 564 S 0.0 0.0 0:10 0 crond
1260 root 9 0 5172 1436 1408 S 0.0 0.1 0:59 0 /usr/local/apache/bin/httpd -DSSL
1346 xfs 9 0 2528 680 656 S 0.0 0.0 0:00 0 xfs -droppriv -daemon
1355 daemon 9 0 556 540 500 S 0.0 0.0 0:00 0 /usr/sbin/atd
1552 root 18 19 11844 8740 7968 S N 0.0 0.9 35:28 0 cpanellogd - setting up logs for detail
1599 root 9 0 1008 876 876 S 0.0 0.0 0:00 0 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pi
1630 mysql 9 0 70928 56M 53624 S 0.0 6.3 0:34 0 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql

When the memory usage 6.3 is what is it mean? Is it using 6.3% of the total memory?

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Dec 30, 2008

I was just wondering about DA memory load. Like CPANEL load around 300mb and LXADMIN about 20mb. I was going to get VPS with 256 only to host 40-50 church sites with just static html, not dynamic or anything. Greatly appreciated with your input. I'm still learning all of this

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