Very High Loads
Dec 8, 2008
I have two vps's n ifferent hardware, after my hoster performed an update to node I am now seeing high loads on both vps's
When I reboot the problem goes for a while
My servers host very little websites and little activity and normally run fine
I have notice a process "unhide" running, what is this and where should I start looking for this issue
[root@vps ~]# top
top - 18:47:59 up 1 day, 6:51, 1 user, load average: 1.96, 1.95, 1.92
Tasks: 62 total, 2 running, 60 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0% us, 2.8% sy, 1.1% ni, 96.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 1048576k total, 143908k used, 904668k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached
Unknown command - try 'h' for help
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
23980 root 26 10 1872 876 316 S 2.0 0.1 4:40.86 unhide
1 root 15 0 1644 568 484 S 0.0 0.1 0:03.76 init
1982 root 17 0 6412 1828 1124 S 0.0 0.2 0:00.00 crond
1985 root 18 0 2120 900 784 S 0.0 0.1 0:00.00 run-parts
3228 root 18 0 3252 1028 896 S 0.0 0.1 0:00.00 01-rkhunter
3229 root 18 0 1888 548 460 S 0.0 0.1 0:00.00 awk
3665 apache 15 0 39700 18m 6036 S 0.0 1.8 0:05.14 httpd
5771 apache 15 0 39540 16m 4516 S 0.0 1.6 0:01.14 httpd
7837 root 26 10 11320 9272 976 S 0.0 0.9 0:07.64 rkhunter
9958 apache 15 0 39608 18m 6024 S 0.0 1.8 0:02.84 httpd
11611 root 15 0 8584 2532 1964 S 0.0 0.2 0:00.01 sshd
11831 root 16 0 6144 476 324 S 0.0 0.0 0:00.00 vzctl
11836 root 16 0 2184 1264 1048 S 0.0 0.1 0:00.00 bash
13789 root 16 0 1548 528 436 S 0.0 0.1 0:00.38 syslogd
13794 root 18 0 1484 368 308 S 0.0 0.0 0:00.00 klogd
14022 apache 15 0 39432 15m 3868 S 0.0 1.6 0:00.72 httpd
17612 root 18 0 4056 1052 756 S 0.0 0.1 0:00.00 sshd
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May 6, 2008
I have a Quad Core Xeon server with 2 GB RAM. The server has some high traffic websites & at peak hours (4-5 hrs a day) the server load remains 10.0 to 50.0.
The sites on the server load very slow at these times. Here's the top result during heavy load
[url]
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Jan 2, 2008
I normally don't like too bother others with my problems but this time It seems I have no choice since I spent the whole afternoon trying to find out what the problem was and couldn't solve it "entirely".
Here's some hardware info:
Processor Information Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Xeon(R) CPU 3050 @ 2.13GHz
Processor #1 speed: 2133.418 MHz
Processor #1 cache size: 2048 KB
Processor #2 Vendor: GenuineIntel
Processor #2 Name: Intel(R) Xeon(R) CPU 3050 @ 2.13GHz
Processor #2 speed: 2133.418 MHz
Processor #2 cache size: 2048 KB
Memory Information Memory: 1031324k/1048320k available (2182k kernel code, 16308k reserved, 914k data, 240k init, 130816k highmem)
System Information Linux **************** 2.6.20-1.2320.fc5smp #1 SMP Tue Jun 12 19:40:16 EDT 2007 i686 i686 i386 GNU/Linux
Running Fedora Core 5 and working for over half year with almost no major problems, but today something totally weird just happened...
After waking up I logged to the server and realized how slow it was, I went to see more about that and for my surprise the loading was around 8 so I went to the mail queue to see if there were a few thousand mails, there were 16 mails... So I went to the see CPU % processes at WHM and I was stunted to see around 30 processes allegedly using over 11500% of the CPU or more!
My first thought was that cPanel smoked something before releasing a last update and I didn't realized it immediately so I downgraded from Release to Stable.
Nothing happened and I lost my time with this overheated overloaded and over-everything and I didn't changed any configuration.
I changed many old configs that... I don't know, might crashed with something that might changed... I was trying and looking for anything.
The load was getting up instead of down, it went up to around 60.
The final conclusion is that whenever I turn the MySQL on I got overwhelming loads otherwise the other services "only" give me around 1.5 of load but still very unstable.
I'm getting a little tired so my explanation may be a little confusing, sorry about that.
Anybody knows what this is? Did this ever happened to you? Extremely high loads without an obvious reason? If anyone could help me I would be thankful for that, I'm getting kind of desperate.
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May 3, 2007
We are having a problem with our Linux dedicated server. At time we are getting high server loads witch is causing the server to go down and reboot. This problem has been going on for over a month now and still liquid web can not tell me what is the cause of the high loads. We have upgraded our RAM to 2 GB. This look to fix the problem for the first week but now we are back to having high loads and downtime.
I'm not a IT person so do not know how to find the problem. Can anyone tell me what I can do the locate the problem. I do know how to access and do some things in the root but do not know enough to find and fix this issue.
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May 11, 2007
Recently, we've been getting a lot of high loads (every 30 mins or so..) This is what shows in the warning email that we receive:
---------------------------------
12.0 04:31:35 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/swh.sellwebhost.com.pid --skip-external-locking
----------------------------------
We are using whm.. Any idea what might be causing this?
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Mar 25, 2009
Two of my VPS's with a company are now showing very high memory loads, even after a reboot, both server are located on different nodes and they both shot up to high ram loads at the same time today(9amGMT) ....
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Apr 30, 2009
has anyone else noticed an unusually high load occurring from 9 till 11 EEST time on their servers?
I've been getting high loads everyday this week at exactly these times.
I'm thinking that this is a crawler/bot that is causing the loads, i've already installed dos deflate and there hasn't been more than 100 connections from the same ip, so I'm ruling out any DOS attack ... besides, what kind of attack only takes place for 2 hours a day at exactly the same time?
I'm on a cpanel system and would like to know which logs to take a look at to determine the cause.
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Apr 6, 2007
I currently have a vps server from GIGEServers, running at 512mb of dedicated and 1024mb spike it seems like apache is using alot of resources, does anyone know of a less hog, or tips on tweaking it, and the same for mysql server any tips on tweaking.
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Mar 3, 2007
We just upgraded to VBulletin 3.6.5, and are experiencing strange behavior. My forums are on a dedicated server, 27,000 users.
We'll be running along fine with loads of .5-2.00, etc. Then suddenly, the loads start climbing to 50, 70, 85+. We've been trying to figure out why. We even went on a different (much more robust) server, still the same result. This only started happening after the upgrade. Restarting the server corrects the problem, but only until it happens again. It can happen at anytime - during peak or off peak. The server may run for an hour or two until this happens, or it can happen 10 minutes after a restart.
Late last night when loads were normal we benched the server hard, and it ran just fine. We just can't figure out where this load spike is coming from.
Server info below:
Servers:
Mysql: server version: 5.0.27-log
PHP: PHP 5.1.6 (cli) Zend Engine v2.1.0,
Apache Server version: Apache/2.2.3
Kernel: 2.6.19-1.2911.fc6 #1 SMP
Server:
Pentium III with 1 gig of ram
15k RPM SCSI Raid 5
1 Gig RAM
-----------------------------------------------------------------------
[root@forums forums]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 6
cpu MHz : 861.001
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 1722.41
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 6
cpu MHz : 861.001
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 1721.51
--------------------------------------------------------------------------
my.cnf:
[root@forums forums]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
log_error = /var/log/mysql_error.log
log-slow-queries = /var/log/mysql_slow_queries.log
safe-show-database
old_passwords
back_log = 20
skip-innodb
key_buffer_size = 256M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 600
thread_cache_size = 384
wait_timeout = 35
connect_timeout = 10
tmp_table_size = 64M
max_heap_table_size = 64M
max_allowed_packet = 64M
max_connect_errors = 10
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
query_cache_limit = 4M
query_cache_size = 48M
query_cache_type = 1
query_prealloc_size = 163840
query_alloc_block_size = 32768
default-storage-engine = MyISAM
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
err-log=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
-------------------------------------------------------
Relevant Apache:
StartServers 10
MinSpareServers 10
MaxSpareServers 15
ServerLimit 256
MaxClients 90
MaxRequestsPerChild 1000
---------------------------------------------------------
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Oct 6, 2009
I have a VPS from KnownHost for about a year for developing purposes. Great place to go for VPS's, by the way.
Anyway I just installed a game server on it and now the loads are about 0.5 when I do a "top" command.
Should I be worried? The server isn't really used for anything right now, that is why I am using it as a L4D server. Max 8 people on it.
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Nov 19, 2007
I was wondering about a specific VPS package I was considering. I have around 80~90 sites (and therefore accounts) that I need a nice place to call home, but I am wondering if maybe I would be asking too much of this VPS package:
40GB Disk Space
1000GB Transfer
P4 3.2GHz
800MHz Front Side Bus
1GB Guaranteed RAM | 2GB Burst RAM
CentOS 4
50% of CPU Guaranteed | Burst to...I don't remember.
All of the sites I would be hosting easily take up less than 100MB of space each. The most any of them use is 2-5GB of transfer. I know these levels are no where near my allotted resources, but do you think that serving 80-90 accounts like this is too much server load? There will only be 2 VPS' on each server, guaranteed.
Anyone with experience with a VPS and a decent set of accounts/domains, please let me know what you think.
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Aug 21, 2008
I have a shared host with them for a few months which the disk usage for home/backup is usually around 85-95%. Right now I am experiencing very slow download speed. What about yours?
Server Load 2.92 (8 cpus)
Memory Used 42.6 %
Swap Used 0.01 %
Disk /dev/sdc1 (/home) 91 %
Disk /dev/sdd1 (/backup) 90 %
Disk /dev/sde1 (/backup/cpbackup/weekly) 43 %
Disk /dev/ram0 (/ramdisk) 24 %
Disk /dev/sdb1 (/) 22 %
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Oct 10, 2007
I have a server running SUSE. dual quad core chips, 16 gigs of RAM.
It's a webserver only running Apache.
We have been having a problem the past few days where page loads take forever yet CPU load and RAM load are very, very low.
I've noticed when it happens when viewing HTOP that TASKS jump from about 350 average to 1000 average. Pages won't start loading until this number drops.
I see no errors in error_log or messages however restarting Apache seems to fix the issue?
I've tried messing around with KEEPALIVE settings with no help.
Any clues on where to start? Pretty lost on this one becuase I see no errors and the load both CPU and RAM are low.
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Apr 20, 2009
I'm not sure whats the problem with my server.
When accessing websites on our server, we will get a Website not found but after trying 2 or 3 times then the website loads.
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Apr 20, 2009
its 2am night here, and my sites are down....now there is no way i have too much traffic at midnight, also all my websites are new !
this is happening consistently since today morning and im getting no support apart from jargon filled replies from customer care
how do i tweak apache settings and what settings do i make to avoid this ?
im wondering what will happen after few months when my websites actually have good traffic coming in ?
We have checked your server. Please see the load average and process list given below:
The value 4.42 was the CPU load average at the time. A normal load should be below 1.00. I could see that Apache service is causing high load in your server.
So you can tweak Apache in order to reduce the CPU load. Please check and let us know if you need any further assistance.
++++++++++++++++++
[root@chi07 ~]# vzctl exec 18403 w
03:16:20 up 2 min, 0 users, load average: 4.42, 1.42, 0.50
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
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Jan 19, 2009
I was just looking at awstats for a domain that is not in use and only got a max of 10 visits a month till October 08.
Now since November 2008 I have been getting a lot of unique visitors from Italy but there is nothing on the domain, no folders or files.
Here is what AWStats say:
Nov 08: 710
Dec 08: 1593
Jan 09: 4243 (so far)
These are unique visitors 99% coming from Italy
What do you think going on ?
The domain in question is testingurl.com
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May 10, 2008
We have a few websites which get 90% Asian traffic. Looking to optimise the user experience in terms of loading time..
Any specific server providers good for asian traffic? How do I find the latency time for a server provider before I go ahead with buying the server?
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Aug 11, 2007
My server's experiencing very slow page loads.
I ran top and got this (screenshot attached)
Could we say that it is a bit high for one http process to use that much cpu/ram?
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Oct 9, 2012
Im using apache2.2 on Ubuntu 12.04. Im trying to password protect a page using htacces and/or the directory command.
Basically no matter what method I use to try and password the index page it doesnt work. I can protect pages and dir's below, but not in the root www of a vhost.
basically:
/home/cackles/mysite with index.html and .htaccess will allow index.html to load and wont prompt for a pass until the page is refreshed.
/home/cackles/mysite/subdir will prompt for a pass before it goes any further.
I purged and started from scratch again last night and for nothing, it would seem, well I learned/refreshed a few things so it wasnt a complete bust ... just 7hrs
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Feb 20, 2008
I have a cPanel server with 4GB RAM
My server hangs time to time, once or twice a day. This is the last status when it happens.
Server Load 75.90 (2 cpus)
Memory Used 92 %
Swap Used 65.78 %
When I was still inside SSH when it happens, the processes I can see inside "top" are a lot of httpd processes.
So I "killall -9 httpd", I had to do it 30~40 times
#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.
Before that, I check httpd fullstatus, they look very normal, same goes to what I see inside WHM Apache status & cpu usage status.
At first I thought it was a memory problem after consulting with a server admin, so I replaced all 4GB new ram stick (such a waste)
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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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Oct 31, 2009
My server is very slow, High CPU, High Apache load....
I got a new server and i had setup a script on it.
No server tweaks has been done.
I run a filehosting site so it gets very slow when traffic is high.
Here is some info:
Code:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4135 filedip 19 0 12812 8892 2212 R 18.9 0.4 0:00.74 index.cgi
3140 apache 15 0 22624 9604 2768 S 17.3 0.5 1:54.45 httpd
3556 apache 15 0 22792 9592 2768 S 17.3 0.5 0:43.53 httpd
3739 apache 15 0 22672 9556 2744 S 17.3 0.5 1:09.67 httpd
3884 apache 15 0 22664 9560 2744 S 17.3 0.5 0:23.98 httpd
3474 apache 15 0 22672 9572 2756 R 16.1 0.5 1:34.09 httpd
3548 apache 15 0 22792 9560 2740 S 16.1 0.5 1:33.67 httpd
3991 apache 15 0 22640 9588 2756 S 15.1 0.5 0:22.44 httpd
3475 apache 15 0 22672 9580 2756 S 13.2 0.5 1:31.42 httpd
3493 apache 15 0 22664 9592 2768 S 12.9 0.5 1:15.52 httpd
3769 apache 15 0 22664 9580 2756 S 12.9 0.5 0:45.19 httpd
3638 apache 15 0 22664 9576 2756 S 12.3 0.5 0:32.82 httpd
3724 apache 16 0 22664 9580 2756 R 12.3 0.5 0:34.25 httpd
3626 apache 15 0 22672 9580 2756 S 11.7 0.5 0:52.54 httpd
4023 apache 16 0 22792 9560 2740 R 11.3 0.5 0:13.16 httpd
3882 apache 15 0 22664 9576 2756 S 10.1 0.5 0:38.56 httpd
3005 apache 15 0 22672 9588 2768 R 9.1 0.5 2:06.61 httpd
I dont know much about server managment...
how to fix this so server doesnt go slow?
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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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Jul 2, 2008
I am running in a High load problem lately. I have one of those cheap 1and1 servers which was running fine until 2 weeks ago. Once I rebooted accidentaly, it did not come back with some unrepairable kernel errors and I had to re-image it.
I chose to reimage the server with CentOS 5, for better support. The new re-image worked fine for some days, at least so I thought and now I am having high loads. The server crashes if not monitored every moment as the load is unpredictable.
Just a restart of the Apache will bring the server back to normality, but I am not sure if it is apache or some other script to be blamed.
I have beeing monitoring through apache server-status, but I cannot organize something unusual in the high load moments.
At this moment for example:
top - 09:00:36 up 15:43, 3 users, load average: 3.57, 4.60, 5.32
Tasks: 144 total, 2 running, 142 sleeping, 0 stopped, 0 zombie
Cpu(s): 10.6%us, 6.5%sy, 0.0%ni, 18.7%id, 63.5%wa, 0.2%hi, 0.5%si, 0.0%st
12:00:29 AM CPU %user %nice %system %iowait %steal %idle
12:10:01 AM all 9.14 0.00 5.52 44.66 0.00 40.68
12:20:14 AM all 6.83 0.00 3.98 27.88 0.00 61.32
12:30:10 AM all 6.44 0.00 4.20 81.25 0.00 8.11
12:40:09 AM all 5.25 0.00 4.09 81.93 0.00 8.73
12:50:15 AM all 5.11 0.00 3.79 90.74 0.00 0.36
01:00:07 AM all 7.22 0.00 4.52 57.11 0.00 31.15
01:10:13 AM all 6.89 0.00 4.01 55.38 0.00 33.71
01:20:14 AM all 4.37 0.00 3.27 41.88 0.00 50.48
01:30:25 AM all 4.26 0.00 3.29 63.42 0.00 29.03
01:40:06 AM all 27.18 0.00 4.75 58.27 0.00 9.80
01:50:03 AM all 29.64 0.00 6.61 51.50 0.00 12.25
02:00:07 AM all 27.00 0.00 8.48 55.49 0.00 9.03
02:10:10 AM all 19.29 0.00 4.97 73.80 0.00 1.94
02:20:04 AM all 37.85 0.00 6.78 40.70 0.00 14.67
02:30:05 AM all 15.65 0.00 4.80 68.47 0.00 11.08
02:40:08 AM all 9.06 0.00 5.60 37.49 0.00 47.86
02:50:07 AM all 5.36 0.00 3.62 42.29 0.00 48.73
03:00:02 AM all 6.05 0.00 4.08 47.27 0.00 42.60
03:10:02 AM all 4.22 0.00 3.68 38.17 0.00 53.93
03:20:02 AM all 4.06 0.00 3.75 41.37 0.00 50.82
03:30:22 AM all 4.42 0.00 3.93 45.25 0.00 46.41
03:40:11 AM all 4.34 0.00 3.95 39.58 0.00 52.13
03:50:02 AM all 4.67 0.00 4.01 32.53 0.00 58.80
04:00:08 AM all 3.72 0.00 3.87 28.40 0.00 64.02
04:10:02 AM all 13.49 0.00 6.58 20.82 0.00 59.10
04:20:01 AM all 6.70 0.00 4.63 6.06 0.00 82.61
04:30:02 AM all 1.44 0.00 1.21 4.75 0.00 92.59
04:40:01 AM all 12.42 0.00 8.12 7.65 0.00 71.81
04:50:02 AM all 1.43 0.00 1.07 4.02 0.00 93.47
05:00:02 AM all 1.60 0.00 1.40 8.62 0.00 88.38
05:10:10 AM all 3.80 0.00 3.02 17.86 0.00 75.32
05:20:06 AM all 5.10 0.00 4.22 23.34 0.00 67.34
05:30:02 AM all 1.54 0.00 1.40 11.22 0.00 85.85
05:40:05 AM all 1.75 0.00 1.89 13.12 0.00 83.23
05:50:12 AM all 2.15 0.00 2.22 18.92 0.00 76.72
06:00:02 AM all 1.92 0.00 2.01 12.87 0.00 83.20
06:10:02 AM all 2.27 0.00 2.16 11.53 0.00 84.04
06:20:03 AM all 3.56 0.00 3.02 25.26 0.00 68.16
06:30:10 AM all 2.66 0.00 2.05 18.13 0.00 77.16
06:40:02 AM all 2.58 0.00 2.25 22.87 0.00 72.30
06:50:02 AM all 2.68 0.00 1.92 15.77 0.00 79.63
07:00:03 AM all 3.06 0.00 2.48 26.01 0.00 68.46
07:10:03 AM all 3.65 0.00 3.20 36.54 0.00 56.61
07:10:03 AM CPU %user %nice %system %iowait %steal %idle
07:20:03 AM all 4.40 0.00 3.28 43.86 0.00 48.46
07:30:02 AM all 4.10 0.00 3.17 31.30 0.00 61.43
07:40:06 AM all 7.67 0.00 3.95 50.79 0.00 37.59
07:50:02 AM all 4.72 0.00 3.11 44.30 0.00 47.86
08:00:03 AM all 5.57 0.00 3.72 47.15 0.00 43.56
08:10:07 AM all 10.66 0.00 3.59 71.62 0.00 14.13
08:20:17 AM all 5.67 0.00 3.42 58.81 0.00 32.10
08:30:10 AM all 11.12 0.00 3.49 76.71 0.00 8.67
08:40:03 AM all 7.00 0.00 3.36 47.94 0.00 41.71
Average: all 7.53 0.00 3.76 38.90 0.00 49.81
Some configurations:
The reimage partittioning looks like this:
/dev/sda1 950M 138M 765M 16% /
/dev/sda5 4.7G 1.9G 2.9G 40% /usr
/dev/sda7 63G 58G 5.0G 93% /var
/dev/sda6 4.7G 23M 4.7G 1% /home
none 1.0G 500K 1.0G 1% /tmp
KeepAlive On
MaxKeepAliveRequests 300
KeepAliveTimeout 15
<IfModule prefork.c>
StartServers 10
MinSpareServers 20
MaxSpareServers 50
ServerLimit 256
MaxClients 180
MaxRequestsPerChild 2000
</IfModule>
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-locking
query_cache_limit=1M
query_cache_size=32M
query_cache_type=1
max_connections=250
interactive_timeout=100
wait_timeout=20
connect_timeout=10
thread_cache_size=80
key_buffer=64M
join_buffer=1M
max_allowed_packet=16M
table_cache=512
record_buffer=1M
sort_buffer_size=1M
read_buffer_size=1M
max_connect_errors=10
thread_concurrency=2
read_rnd_buffer_size=1M
myisam_sort_buffer_size=64M
server-id=1
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 3
model name : Intel(R) Pentium(R) 4 CPU 2.80GHz
stepping : 4
cpu MHz : 2793.324
cache size : 1024 KB
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Nov 8, 2008
I have extremely high CPU load average, but when I run TOP command there are not any process with high CPU
CPU load averages:
211.65 (1 min) 227.29 (5 mins) 247.89 (15 mins)
Tasks: 364 total, 2 running, 360 sleeping, 2 stopped, 0 zombie
Cpu(s): 0.0%us, 0.3%sy, 0.0%ni, 0.0%id, 99.7%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 2065460k total, 2012372k used, 53088k free, 60964k buffers
Swap: 2040212k total, 3280k used, 2036932k free, 619900k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
19871 root 15 0 4944 2488 1656 R 1 0.1 0:02.73 top
1 root 15 0 4208 1320 1136 S 0 0.1 0:01.55 init
2 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
3 root 34 19 0 0 0 S 0 0.0 0:01.77 ksoftirqd/0
4 root RT 0 0 0 0 S 0 0.0 0:00.01 migration/1
5 root 34 19 0 0 0 S 0 0.0 0:01.16 ksoftirqd/1
6 root 10 -5 0 0 0 S 0 0.0 0:01.04 events/0
7 root 10 -5 0 0 0 S 0 0.0 0:00.65 events/1
8 root 10 -5 0 0 0 S 0 0.0 0:00.00 khelper
9 root 11 -5 0 0 0 S 0 0.0 0:00.00 kthread
35 root 10 -5 0 0 0 S 0 0.0 0:00.15 kblockd/0
36 root 10 -5 0 0 0 S 0 0.0 0:00.00 kblockd/1
37 root 15 -5 0 0 0 S 0 0.0 0:00.00 kacpid
127 root 10 -5 0 0 0 S 0 0.0 0:13.16 ata/0
128 root 16 -5 0 0 0 S 0 0.0 0:00.00 ata/1
129 root 10 -5 0 0 0 D 0 0.0 0:01.15 ata_aux
130 root 10 -5 0 0 0 S 0 0.0 0:00.00 kseriod
158 root 16 0 0 0 0 S 0 0.0 0:00.00 pdflush
159 root 15 0 0 0 0 D 0 0.0 0:01.00 pdflush
160 root 10 -5 0 0 0 S 0 0.0 0:10.68 kswapd0
161 root 11 -5 0 0 0 S 0 0.0 0:00.00 aio/0
So my server is "unresponsive" for abour 18 hours, burst net didnt answer my tickets and I dont know what to do. Ive been with this setup for almost 5 months with no problems, No changes have been made to hardware or software.
Im using Centos 5.0
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Apr 14, 2009
When I run the top command on my server, my output is as follows:
=====================================
Tasks: 515 total, 50 running, 363 sleeping, 1 stopped, 101 zombie
Cpu(s): 1.1%us, 2.6%sy, 94.3%ni, 0.0%id, 0.0%wa, 0.3%hi, 1.7%si, 0.0%st
Mem: 1026792k total, 976680k used, 50112k free, 27548k buffers
Swap: 2096472k total, 466248k used, 1630224k free, 251920k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
400 nobody 17 1 48592 18m 6956 R 20 1.9 0:17.65 lsphp5
6925 nobody 17 1 50008 17m 4048 R 20 1.7 0:06.15 lsphp5
13819 nobody 17 1 47900 14m 3372 R 17 1.4 0:04.23 lsphp5
24392 nobody 17 1 51084 16m 4304 S 11 1.6 0:13.07 lsphp5
3339 nobody 16 1 50620 17m 3876 D 11 1.7 0:08.43 lsphp5
358 nobody 17 1 49260 17m 5352 R 10 1.8 0:13.00 lsphp5
4059 nobody 17 1 47824 15m 4688 S 9 1.6 0:08.23 lsphp5
26979 nobody 16 1 51220 19m 5392 R 9 1.9 0:12.04 lsphp5
11864 nobody 17 1 48592 15m 4376 R 8 1.6 0:03.76 lsphp5
381 nobody 17 1 52100 19m 4576 S 7 1.9 0:09.34 lsphp5
4056 nobody 17 1 48564 15m 3932 R 7 1.5 0:06.58 lsphp5
12838 nobody 17 1 48856 16m 4088 R 7 1.6 0:06.11 lsphp5
6924 nobody 17 1 51060 15m 4188 R 6 1.6 0:04.36 lsphp5
14343 nobody 17 1 47736 13m 2712 R 6 1.3 0:00.18 lsphp5
11848 nobody 17 1 48580 16m 5268 S 5 1.7 0:06.18 lsphp5
11862 nobody 17 1 48124 14m 3848 R 5 1.5 0:04.23 lsphp5
14293 nobody 17 1 47872 13m 3020 S 5 1.4 0:00.84 lsphp5
=====================================
lsphp is my webserver (litespeed). The sleeping processes are my SHOUTcast servers.
The thing I am concerned about is the "94.3%ni". This is slowing down my server completely and I am not too sure of what it is. Can anyone shed any light on this?
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Jun 24, 2009
My VPS holds about 80 domains and low-use accounts.
Every night, from around 1.30am, the load suddenly skyrockets and will usually be around 5 to 10 for a few hours. Occasionally it'll spike to 30+ for a few minutes.
I had some antispam software running, and a couple of other packages (mail queues, mail manage etc), so I disabled all of that and removed all the crontab entries etc.
It's not really made any difference.
I can see the load stats going back 8 hours, as part of the ASSP spam package (I've just left the ASSP server load cron running just so I can continue monitoring it!)
Can the apparent load on my VPS be caused by other VPS's on the same node?? So in reality, my load is fine but is being affected by other people's VPS's?
I hope that makes sense. I'm 99% sure that my VPS is 'clean' (in so far as cron entries)
I'm asking the question because I took a second VPS on the same node and that one too has high loads overnight when there's nothing running on it (ie, no add-on software, no Cpanel accounts added)
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Apr 19, 2009
I have a VPS with LXadmin control panel and 1024 Ram.
the memory always 333-450 but now it is more than 800 and the VPS stopped I restarted it many times but after restarting it the memory gone crazy again.
So, how to know what causes high load and eating my Memory?
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Apr 25, 2009
Anyone know of any good/cheap high-bandwidth VPS providers? Don't need anything crazy as far as processing power or RAM (512MB with no burstable is fine). Sorta like Slicebox's budget servers, which I've had good experience with.
To e upfront, the box will be used for a little bit of testing, etc. but mostly to seed the latest Windows 7 builds :p. Don't think Microsoft minds all that much...Win7 requires a legitimate beta key to activate (which I have, and I'm not giving anyone mine) and it's a whole lot cheap for them to let people download over BitTorrent than Akamai, which they normally use.
So, any ideas? EU isn't out of the question...anywhere with a lot of/unmetered bandwidth for cheap, and a VPS that's reliable + has at least 512MB of memory for prices comparable (or slightly lower than) to Slicebox.
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Jun 16, 2009
I've a remote download site that uses tons of BW (about 900GB daily), and it uses sql connection quite alot - I've set it to max connection for my current server.
For now, I've the intention of separating main site with download server. where The main site will contains the sql DB. But my concern is, I want to buy a cheap VPS for the main site, but no idea if I need high BW and ram.
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