Server Overload - Fixed By Extra RAM Or More Powerful CPU
Jul 3, 2008
I have a fairly busy server, and received a High Load warning from my firewall monitoring software. Showing a high 5 minute load average alert of 13.89.
I'm presuming extra memory and a more powerful CPU would be required to sort this out?
Time: Thu Jul 3 12:22:06 2008
1 Min Load Avg: 42.90
5 Min Load Avg: 13.89
15 Min Load Avg: 5.82
Running/Total Processes: 51/359
Output from ps:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND ...
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May 21, 2007
I've been tasked with finding a web server for my office. I won't be the one managing it, but I'm supposed to figure out what to purchase. It's pretty low volume. We'll have a max of 20GB/month. We're planning to use Apache, PHP, & mySQL to run a couple of sites based on Wordpress and Movable Type. I figure we probably don't need much, but I just want to make sure before I go recommending something that isn't sufficient. Right now, I'm looking at a low end server with a 3GHz P4, 1GB of DDR 400, and a 7200 RPM hard drive.
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Jun 4, 2009
I have a project coming up to host a self developed database app on a web based SQL server. We have received the prepayment for the server rent for 24 months already and are currently looking for the best possible provider.
Requirements:
Uptime and service response is critical for us. We want an unmanaged server but require the best possible response time in case of hardware defects or network issues (DDoS).
In the beginning the user base (small) will mainly be in Europe but with the tendency to grow more continents. I’d like a US east cost location with a speedy connect to EU but would consider an EU provider with a good rep.
Server specs:
I7 processor for fast RAM access
12GB DDR3 RAM (probably more later)
2 x SSD 80GB in Raid 1 (planning to go RAID10 on 4 disks later)
Hardware Raid controller
2 TB traffic /month
Windows Server Std 2003 x64
SQL Server 2008
Unmanaged. No help needed with server config.
We intend to keep the same hardware for 24 months. So rent to own might be an option Large upfront payment are ok to reduce monthly costs.
Hardware SLA would be nice
KVMoIP would be nice
Firewall:
Dedicated unit would be nice but we have no experience here and would need full support.
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Jul 28, 2009
I have two quad core processors and load is like 15.
May it be caused by switch if it doesnt let traffic trough properly?
if dmesg grep eth shows 100 full duplex is it normal or should it be 1000 full duplex?
how can I make it 1000 full duplex on centos 5?
Quote:
0000:0a:02.0: eth0: (PCI Express:2.5GB/s:Width x4)
0000:0a:02.0: eth0: Intel(R) PRO/1000 Network Connection
0000:0a:02.0: eth0: MAC: 3, PHY: 5, PBA No: ffffff-0ff
0000:0a:02.0: eth1: (PCI Express:2.5GB/s:Width x4)
0000:0a:02.0: eth1: Intel(R) PRO/1000 Network Connection
0000:0a:02.0: eth1: MAC: 3, PHY: 5, PBA No: ffffff-0ff
ADDRCONF(NETDEV_UP): eth0: link is not ready
0000:0a:02.0: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth0: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
0000:0a:02.0: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth1: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
eth0: no IPv6 routers present
eth1: no IPv6 routers present
ADDRCONF(NETDEV_UP): eth0: link is not ready
0000:0a:02.0: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth0: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
0000:0a:02.0: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth1: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
eth0: no IPv6 routers present
eth1: no IPv6 routers present
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Oct 23, 2007
currently i purchase a reseller. when i click in server status, i found out that the detail is as below:
cpsrvd up [green]
Server Load 5.41 (1 cpu) [red]
Memory Used 46.7 % [green]
Swap Used 9.51 % [green]
Disk /dev/sda1 (/boot) 13 % [green]
Disk /dev/sdb (/mount) 57 % [green]
Disk /dev/sda3 (/) 88 % [yellow]
i found that the server load is in red color, and the last item Disk/dev/sda3 is in yellow color. may i know what is the problem?
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Jul 8, 2009
Im using Vmware on dedicated server:
each 2 Intel(R) Xeon(TM) CPU 3.00GHz
1- in vmware show:
2 CPUs x 2 Cores
but i check in SSH we have 7 core !
Code:
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 4
cpu MHz : 7680.000
cache size : 2048 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est cid cx16 xtpr lahf_lm
bogomips : 6012.44
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 4
cpu MHz : 5120.000
cache size : 2048 KB
physical id : 1
siblings : 4
core id : 0
cpu cores : 2
apicid : 4
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl vmx est cid cx16 xtpr lahf_lm
bogomips : 5984.27
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
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Oct 26, 2009
i want to kill apache/http and restart it again automatically. i need this because sometime we are not in front of the server to fix an overload issue immediately, which can affect a server very badly. i believe many of us already face this kind of situation and hope there is some kind of script or way to do this.
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Oct 27, 2008
Today my server was down cause it was overloaded and when i restart my server its running how to stop such problem in the future
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May 22, 2008
I have heard a lot of cases when customers used forbidden PHP scripts on shared servers and as a result their accounts were suspended due to the server overload. I am just wondering what scripts it is desirable not to use within shared hosting packages?
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May 22, 2008
I have heard a lot of cases when customers used forbidden PHP scripts on shared servers and as a result their accounts were suspended due to the server overload. I am just wondering what scripts it is desirable not to use within shared hosting packages?
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Oct 30, 2008
Debian Server Ubnormal CPU
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Apr 5, 2007
how can i find out what has caused my server to hang/overload once its rebooted?
I know that the SWAP maxed out but i am unsure why.
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Feb 19, 2014
Is there a way to protect apache server from overload? For example Nginx has a module called SysGuard when system load or memory use goes too high all subsequent requests will be redirected to the URL specified by the 'action' parameter.
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Aug 28, 2007
How I Fixed My Exim Was Allow Perl Access To Other Users Besides Root
chmod 755 -R /usr/bin/perl
Restart Exim
/scripts/restartsrv_eximstats
Issue Was Resolved.
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Sep 29, 2008
I have been receiving these a couple time a day lately and not sure what to do or how to go about checking what might be overloading the server. IF this looks familiar to anyone, I'd appreciate some helpful tips. I'm still a novice, but can muddle my way around the server if given enough guidance. Here is the email I've been getting:
"IMPORTANT: Do not ignore this email.
This is cPanel stats runner on host.myserverhost.com!
While processing the log files for user xxxxxxx, the cpu has been maxed out for more than a 6 hour period. The current load/uptime line on the server at the time of this email is
19:20:10 up 2 days, 7:06, 0 users, load average: 15.17, 13.24, 8.00
You should check the server to see why the load is so high and take steps to lower the load. If you want stats to continue to run even with a high load; Edit /var/cpanel/cpanel.config and change extracpus to a number larger then 0 (run /usr/local/cpanel/startup afterwards to pickup the changes)."
I guess my question is, how would I go about determining what is causing the excess load? Seems to happen even when not many folks are on my site.
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Jun 9, 2008
I'm on a low-end dedicated server that I run 2 decent sized blogs on. I'm getting several traffic spikes a day where the load goes through the roof and I think I need my server optimized.
My server admin says I need a bigger server and he has never steered me wrong but this is ridiculous:
My blogs use Wordpress as its blogging platform....I know they hog server resources and I've recently installed Super cache so that seems to help.
I average about 5,000 pageviews a day and I would think even a low-end box should handle this but maybe I am wrong.
Here's the server specs:
Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Celeron(R) CPU 2.40GHz
Processor #1 speed: 2394.661 MHz
Processor #1 cache size: 128 KB
Memory: 1033924k/1048016k available (2171k kernel code, 13360k reserved, 723k data, 172k init, 130512k highmem)
hda: ST380011A, ATA DISK drive
hdc: Lite-On LTN486S 48x Max, ATAPI CD/DVD-ROM drive
hda: max request size: 1024KiB
hda: 156250000 sectors (80000 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(100)
hda: cache flushes supported
hdc: ATAPI 48X CD-ROM drive, 120kB Cache, UDMA(33)
Memory:
total used free shared buffers cached
Mem: 1035148 993356 41792 0 151312 527008
-/+ buffers/cache: 315036 720112
Swap: 2040212 476700 1563512
Total: 3075360 1470056 1605304
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Jul 5, 2007
how check which database / user MySQL overload the server?
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Jun 11, 2008
What are the advantages and disadvantages to buy unmetered or fixed bandwidth dedicated?
For burstnet unmetered does it guarantee to have some good bandwidth or it can be very very slow at peak times?
I can find about the same price almost 2TB/month or 10mbps unmetered.
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Sep 21, 2007
some setup recommendations as I feel I have outgrown my current server.
I have two websites:
#1 is a busy vBulletin based forum with 42,000 members.
#2 is a website with Wordpress and Vbulletin installed (though the forum is nowhere near as busy as the first site) and gets roughly 2000 uniques a day.
When site #2 gets a good surge of visitors from offline media or a large site, site #1 will die first with the "mysql error: too many connections" error and site #2 will take a very very long time to load.
For every other day, the load is quite low, nearly always under 1.50.
The current server that both sites reside on has the following specs:
Quote:
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 2
model name : Intel(R) Pentium(R) 4 CPU 2.66GHz
stepping : 9
cpu MHz : 2667.540
cache size : 512 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 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe cid xtpr
bogomips : 5339.18
total used free shared buffers cached
Mem: 1003 484 519 0 3 192
-/+ buffers/cache: 288 715
Swap: 2047 25 2022
What sort of setup would be best for me?
A files server and a sql server?
A server for site #1 and another for site #2?
A single, more powerful server?
Or something else you recommend?
Also, for the setup you do recommend, can you recommend a hosting company that is reliable and can do it for a good price?
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Mar 6, 2008
for a hosting server,many parts of the hardware are all important,
and some part may effect the performance and price,
i just wonder two part,
how can i judge if the raid card and chip is powerful enough to run a hosting server?
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Oct 7, 2008
Im a webdesigner so when looking for hosting i try to find one that is simple to manage, hardware powerful, lots of ready to install scripts and a beautiful webmail like Atmail or Zimbra.
So im looking for a powerful / quality high end "shared" hosting package.
Until now i have looked at:
- Mediatemple
(as @mail, exelent support but slow in Europe)
- Mosso
(is always good to be powered by rackspace but i think that the cloud hosting concept is still unsstable. Any experience?
- SimpleHelix (realy fast magento demo store, lots of scripts, @Mail and seems to have a fast network to europe)
So any advices on premium shared hosting?
An in Europe, any company similar to mediatemple or simplehelix?
Budjet: up to 100 $
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Jun 5, 2009
Atom N330 with 2G RAM,
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Aug 11, 2007
Server is running fine on 2GB memory on Xeon 3060 running on Apache 1.3, php 4.4.6 and mysql 4.1.21
It's only used to host a forum with about 80 members online and a multimedia download section.
Would it be a big difference if I upgrade to 3GB? Like will it support more downloads at once without boggind down the server? Which stuff should I tweak in apache and mysql config to make use of extra gig of ram?
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Apr 16, 2009
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I've been scouring WHT and Google for something that will meet my needs but have not yet been successful. Does anyone know where I can find such a VPS? Or is there nothing out there and should I concentrate on fully dedicated products?
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Jul 24, 2008
Although I have switch to using VPS for some time, I still have a question in mind.
Most registrars need 2 ns which 2 IPs are sufficent. Why some hostings are giving 4 IPs?
I ever sign up with one hosting which give 1 IP. If a minimum of 2 IPs is needed, what else can I do other than pay money for an extra IP? Feel cheated.
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Nov 24, 2008
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Dec 7, 2008
One of my hosting accounts has tons of extra space on it. Both bandwith and disk space. Enough to easily run one additional site. How can I use that extra space as hosting for another separate domain?
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Oct 17, 2007
i was ddos'ed heavily two months ago and my host decided to invest in some ips hardware. even after installation, the targeted ip still had to be null-routed. because of the ddos, i was told the incoming bandwidth was going over my commit (500mbit?) and I had to increase my commit from 100 to 200mbit.
the attacks are over now, but i am stuck with paying for the commit. i am still under contract and i cannot exactly move 22U's of machines easily. i don't know how to proceed. I do not really want to sublease my cabinet out, but i also do not want to pay the extra costs for something that i am not using. I do not mind paying a one-time payment for the bandwidth cost during the attacks, but .. oh well.
has anyone ever subleased their cabinet? what kind of terms should i be offering and watching out for?
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Jul 18, 2007
i have vps 512 MB ram From HostForWeb working Fine! in 160 websites! Hosted
But! in swvps.com with 2 gig ram! Low Working! OverLoad and CPU Usage is Red Alert
But HostForWeb VPS with 512 MB Ram good Working I Dont Know Why SWvps.com Is Low with 2 gig ram for me?
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