How Many Concurrent Users On The Average VPS Plan
Jul 26, 2008
I'm on a vps using Dell PowerEdge Servers and 750 GB of transfer.
I have concurrent users settings to where i now have them at "50" and I'm wondering how much higher i can go without troubles.
My app is a perl cgi script in flat files and 95% of visitors will pass through my domain without seeing my webpage. They are only there approx 1 second, maybe 2 as they are quickly redirected from this platform.
My host has a custom solution installed to check for apache stalls every few minutes and it will restart apache when it sticks - and it will stick from time to time.
Just now i do about 75000 per day but plan to double to 150,000 next week and soon after will triple to 225,000 visitors per day.
Should i increase concurrent users now in prep for the increase to 150k or at what level.
Please give some suggestions for concurrent settings at future traffic levels. This host has a multiple server set up in case one fails - i should be good, i think.
75000
150000
225000
300000
400000
500000
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Nov 24, 2008
how many concurrent users support a p4 3ghz with 2gb of ram?
server is running about 10 sites using php/mysql and when there are 30/40 concurrent requests on apache2 the cpu load go to 5/6 until 10 in some cases
is this normal? i need to upgrade my hardware or i need to optimize mysql/php/apache?
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Apr 2, 2008
I am planning to set up a forum. What kind of server do I need? I am expecting to
have
- 40-50 concurrent users
Do I need a dedicated server (2 GB) - which would cost me about - 350$ per month - or is it
possible to find a cheaper solution?
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Jan 15, 2008
I try to search and not found the solutions to limit concurrent of db users to connect to MySQL in same time for example:
Limit user root to connect to MySQL maximum 5 connections in same time
There have max_connections setting but it limit for all users in all connection to MySQL.
But I found that in version 4.1.x there have max_connections property in user table (Users and global privileges) of mysql database, this setting is limit connection in 60 minutes.
I would like to know if there any setting or code modify for this solution that I want.
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Jul 17, 2008
Like the topic suggested, anybody have a rough estimate of how many concurrent users game websites such as wildtangent and instantaction have? Also, what kind of server configuration would be necessary to support those kind of users assuming you have 1 server for web and 1 for database.
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Jul 28, 2009
I am running lighttpd and eccelerator.
I have stripped the php-cgi.
I have tried forking anywhere from 50 to 300 to 1000 fastcgi children with PHP_FCGI_CHILDREN (through lighttpd, I'll attempt to do with same with spawn-fastcgi and fpm)
Server stats:
Intel Core i7 920
12GB DDR
250GB 7.2k RPM SATAII 16MB Cache
I am using to lighttpd's lighttpd-status to estimate concurrent connections.
When I refresh the panel, it shows that there are around 100-150 connections and around 150 requests/s in the last 5 seconds.
My vmstats show that CPU is 98% idle. Blocks written/read is neglible. MySql key_buffer set to 2gb and I'm pretty sure it's not mysql. The overwhelming majority of requests do not access mysql.
EDIT: Uh oh, I just realized that tcp_mem could be a huge bottle neck.
I just set it to:
net.ipv4.tcp_mem = 4096000 87380000 4194304000
It was previously:
net.ipv4.tcp_mem = somenumber somenumber 393,216 <<<--- WTF!
x1000 for my read values (it's an access server only). I can't benchmark the server right now so let me know if you have any suggestions besides this. I do think that this was the problem. When under load images could not be accessed either.
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Jun 2, 2014
I like to create some service plans using the cli-tools, /usr/local/psa/bin/service_plan.I am able to create a service plan, but I'm unable to create a service plan inside a reseller plan. For example I cannot "tell" the service_plan script to add the created serviceplan to a reseller plan. Is it possible to create a serviceplan inside a reseller plan, using the cli?
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Sep 6, 2013
The upgrade has an error when manage the users database.
PRODUCT, VERSION, VERSION OF MICROUPDATE, OPERATING SYSTEM, ARCHITECTURE
OS Microsoft Windows Server 2008 R2 Service Pack 1 x64
Panel version 11.5.30 Update #13, last updated at Sept 1, 2013 03:30 PM
PROBLEM DESCRIPTION
In a costumer panel have a one database MSSQL, and assign to this DB 3 users, but the tab option "Users" don't work fot his costumer and show this error:
Error Javascript:
TypeError: template is null
this.template = template.toString(); in protototype.js 8472831 (lÃnea 807)
ACTUAL RESULT
Error Javascript:
TypeError: template is null
this.template = template.toString(); in protototype.js 8472831 (lÃnea 807)
EXPECTED RESULT
Show users in the tab users for database.
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Apr 21, 2009
i have a vps, and im current use lighttpd, but i want move to litespeed Standard. And i see they limit Max Concurrent Connections =150 on standard version.
but what is Max Concurrent Connections? where can i find it.
and is it the number connection via port 80 (netstat -nt | grep :80 | wc -l)?
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Mar 25, 2009
On my server, users can connect to any database as long as they have the database user and password. This makes it easier to hack any database on the server.
What I want to do is to make the users can only connect to their own databases and not other's.
I tried changing the localhost ip address but it didn't work ( I assume I didn't do it the right way)
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Apr 23, 2008
Iam currently on godaddy on shared hosting but my site with php and mysql is very slow on queries and get a lot of timeouts
So far i have contacted the below providers and asked them how many concurrent connections on mysql database they support
hostgator - 25 connections
powweb - 20 connections
hostmonster - 30 connections
Servage - 20 connections
anhosting - 50 connections
How is most reliable and i can count on ? I want to tranfer my domain.
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Oct 6, 2008
Is there any host with a shared connection that will allow Unlimited concurrent connections to both http and to mysql.
I Got a myspace clone that just blows through connections when my users are logged in.
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Jan 10, 2009
I was looking at some load balancers hosting companies offer and some of the load balancer specs say they can handle up to 15million concurrent sessions(users online at the same time), so does this mean if i had a site like wikipedia that had 15 million users online at the same time, would i be able to do this with only 2 dedicated servers, or will the Cpu's not be enough?
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Jun 21, 2008
Server: Dell 2950
onboard NIC only
CentOS 4.6
Is it possible to run two concurrent VPN connections using the Linux Cisco VPN client? We need to have one server be able to communicate over two different vendors gateways.
Do we need to possibly add an additional NIC to the server first?
When we try to connect to another profile we get the error:
Initializing the VPN connection.
Secure VPN Connection terminated locally by the Client
Reason: A connection already exists.
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Apr 28, 2009
Currently I use WHM/cPanel latest on a few boxes, I have (at least to my knowledge) copied the exact compile settings between servers, yet some of my servers allow me to do concurrent file downloads (using DownThemAll or another "accelerator") whilst others only let me make 1 connection. These servers also don't show me the final filesize while downloading. So my question is, what did I set/unset to cause this to happen? It's been bugging me for a month or so now and no amount of recompiling has fixed the issue (aside from a clean install of the OS/cPanel). I can provide a list of modules and other config settings if required.
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Mar 23, 2009
I am planning to get a Juniper firewall, but due to SSG140 has a maximum of 48,000 concurrent sessions per second, so it triggers me how do I measure the concurrent session of a linux server of the total throughput instead of just port 80?
OS: CentOS
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Jul 11, 2014
Is it possible to limit the max number of concurrent access to an url?
Let's see the following example: URL...
/a1 concurrent access should be limited to for example 20.
While we have an other url:
https:/ssss.com/a2
/a2 should be limited to 30.
Is it possible to do it with some apache config?
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Jun 25, 2015
I am running Plesk 12.0.18 on Centos 6.4
I have noticed that the CPU on my VPS maxes out. This occurs when there are many concurrent visitors to any of the 7 domains. 6 of the domains run Wordpress and 1 runs php-bb forum. When I run top during high cpu I see multiple "php-cgi":
32664 xxxx 30 10 211m 38m 8228 S 21.0 0.9 0:03.70 php-cgi
32675 xxxx 30 10 209m 38m 7992 S 25.8 0.9 0:02.08 php-cgi
30809 apache 30 10 422m 98m 2492 S 8.8 2.2 0:18.07 httpd
Looking at the process
PID TTY STAT TIME COMMAND
32664 ? SN 0:01 /usr/bin/php-cgi -c /var/www/vhosts/system/websitex.com/etc/php.ini
The net result is CPU hits 100% and visitors are greeted with Service Unavailable ...
Output from /usr/local/psa/bin/php_handler --list
id: display name: full version: version: type: cgi-bin: php-cli: php.ini: custom:
cgi 5.3.3 5.3.3 5.3 cgi /usr/bin/php-cgi /etc/php.ini false
fastcgi 5.3.3 5.3.3 5.3 fastcgi /usr/bin/php-cgi /etc/php.ini false
module 5.3.3 5.3.3 5.3 module /usr/bin/php-cgi /etc/php.ini false
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Aug 12, 2008
I will be running Plesk.
I only need 1 user, Administrator with full Remote Desktop Connection access.
But I need to be able to serve websites using Plesk.
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Apr 29, 2009
If everyone can take a look at this (while all domains were turned off) and give me any advice to what is eating up resources so badly? The load averages are at 1.3+ with only yum trying to run on the box and it has already been running to nearly two hours were this would typically take 10-15 minutes max prior.
Host: FutureHost
Type: VPS
DC: Dallas
Plan: VPS Elite with 1.5GB of memory
top - 11:40:21 up 2:26, 2 users, load average: 1.35, 1.39, 1.37
Tasks: 41 total, 1 running, 40 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.3%us, 0.0%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1572864k total, 202300k used, 1370564k free, 0k buffers
Swap: 0k total, 0k used, 0k free, 0k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 15 0 1988 664 572 S 0 0.0 0:02.57 init
3572 admin 15 0 24488 9308 6072 S 0 0.6 0:00.11 php-cgi
3643 admin 15 0 24488 9324 6088 S 0 0.6 0:00.10 php-cgi
3685 apache 18 0 7940 3688 876 S 0 0.2 0:06.49 lighttpd
3686 admin 25 0 24076 7684 5096 S 0 0.5 0:00.05 php-cgi
3689 admin 25 0 24080 7684 5096 S 0 0.5 0:00.05 php-cgi
3690 admin 25 0 24080 7692 5096 S 0 0.5 0:00.05 php-cgi
3692 admin 20 0 24076 7684 5096 S 0 0.5 0:00.05 php-cgi
3693 admin 20 0 24076 7684 5096 S 0 0.5 0:00.05 php-cgi
3790 admin 20 0 24080 7688 5096 S 0 0.5 0:00.05 php-cgi
3905 admin 20 0 24072 7680 5096 S 0 0.5 0:00.05 php-cgi
4053 admin 20 0 24072 7680 5096 S 0 0.5 0:00.05 php-cgi
5252 admin 20 0 24080 7688 5096 S 0 0.5 0:00.06 php-cgi
5415 admin 15 0 24368 8820 5748 S 0 0.6 0:00.06 php-cgi
5628 admin 20 0 24076 7684 5096 S 0 0.5 0:00.06 php-cgi
5734 root 18 0 9844 2804 2268 S 0 0.2 0:00.52 sshd
5828 root 15 0 2516 1408 1116 S 0 0.1 0:00.02 bash
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May 8, 2009
I have a VPS, and i wanted to know if the CPU / Load Average that shows at my Plesk control panel reports only the usage of my part of the server cpu, or if it is the real/complete cpu usage for the entire server?
So in a simple way, is another user with a vps at the same server is doing a high cpu task at is vps, will it show at my plesk cpu load average?
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Oct 26, 2009
This question is for owners who sell their own VPS services.
Can anyone tell me a 'rough' estimate of what their average setup users purchase from you? Or perhaps a top 3 of your setups?
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Feb 26, 2009
Having a reseller account(didn't need it, but was talked into it originally), on the average how many domains should I expect to be hosted on one IP? Right now I show 466 for my IP. This is more for curiosity at this point than anything.
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Jul 8, 2007
What Should be load average of a VPS to be called as IDEAL?
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Feb 5, 2007
optimize MySql i have load average: 3.49, 3.79, 3.80
my server have more than 200 web site working online i have so many Mysql process ..
my server info:
CPUs:
Quote:
Processor #1 Vendor: GenuineIntel
Processor #1 Name: Intel(R) Xeon(TM) CPU 3.00GHz
Processor #1 speed: 2993.075 MHz
Processor #1 cache size: 2048 KB
Processor #2 Vendor: GenuineIntel
Processor #2 Name: Intel(R) Xeon(TM) CPU 3.00GHz
Processor #2 speed: 2993.075 MHz
Processor #2 cache size: 2048 KB
Processor #3 Vendor: GenuineIntel
Processor #3 Name: Intel(R) Xeon(TM) CPU 3.00GHz
Processor #3 speed: 2993.075 MHz
Processor #3 cache size: 2048 KB
Processor #4 Vendor: GenuineIntel
Processor #4 Name: Intel(R) Xeon(TM) CPU 3.00GHz
Processor #4 speed: 2993.075 MHz
Processor #4 cache size: 2048 KB
Memory Information:
Quote:
Memory: 5190364k/5767168k available (1877k kernel code, 51280k reserved, 759k data, 184k init, 4325120k highmem)
System Information:
Quote:
Linux 2.6.9-42.0.8.ELsmp #1 SMP Tue Jan 23 13:01:26 EST 2007 i686 i686 i386 GNU/Linux
PHP Version: 4.4.4
MySQL Version: 4.1.21-standard
MySql Settings :
Quote:
[mysqld]
skip-locking
character-sets-dir=/usr/share/mysql/charsets/
query_cache_limit=1M
query_cache_size=16M
query_cache_type=1
max_user_connections=100
max_connections=500
interactive_timeout=60
wait_timeout=30
connect_timeout=10
thread_cache_size=96
thread_concurrency=2
key_buffer=8M
join_buffer=1M
max_allowed_packet=24M
table_cache=1024
record_buffer=1M
sort_buffer_size=1024K
read_buffer_size=1024K
max_connect_errors=10
read_rnd_buffer_size=1024K
myisam_sort_buffer_size=16M
socket=/var/lib/mysql/mysql.sock
key_buffer_size=16M
[mysql.server]
user=mysql
basedir=/var/lib
[safe_mysqld]
open_files_limit=4096
[mysqldump]
quick
max_allowed_packet=8M
max_allowed_packet=8M
[mysql]
no-auto-rehash
[isamchk]
key_buffer=16M
sort_buffer=16M
read_buffer=8
write_buffer=8M
[myisamchk]
key_buffer=16M
sort_buffer=16M
read_buffer=8M
write_buffer=8M
[mysqlhotcopy]
interactive-timeout
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Jan 4, 2007
I am considering adding offsite secondary backup servers in house on a full T1 (multiple? or a fractional T3?). Servers will be located in Ontario Canada. Does anyone know the average, upper, and lower cost for a full or even partial T1? I am trying to go as cheap as possible since the line probably wont be used unless the datacenter looses service.
If anyones had any experience with T1, as far as price, reliability, best providers etc
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Feb 24, 2008
What is the average price for a constant 100mb ethernet line into colocation cages in datacenters?
I'm getting a 20x30 cage in a local datacenter and they are offering it at $75/day or $2250/month.
Keep in mind that it is dedicated to me, as well as fully redundant from Verio/NTT and Level3.
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Oct 22, 2009
I have to move about 50 GB each night from one server to another.
This is the command I'm using:
Code:
/bin/nice -n +19 scp -c blowfish -l 18000 -P 22222 root@XX.XX.XX.XX:/backup/dailybacks/*.tar.gz ./
There is no private lan so i have to use internet. I'm using blowfish, which will reduce cpu load, and also limiting bandwidth transfer, usign -l 18000. How ever, I still do see some high load averages..
Do you have any other suggestion to optimize CPU performance while running scp?
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Jun 20, 2009
Why my server - load average is high?
below is output of top:
top - 13:52:53 up 29 days, 5:39, 3 users, load average: 72.05, 68.90, 67.89
Tasks: 857 total, 2 running, 833 sleeping, 20 stopped, 2 zombie
Cpu(s): 4.2%us, 2.5%sy, 0.0%ni, 26.4%id, 63.6%wa, 0.5%hi, 2.8%si, 0.0%st
Mem: 8181908k total, 8135188k used, 46720k free, 35104k buffers
Swap: 4192956k total, 26624k used, 4166332k free, 7321172k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
337 mysql 15 0 327m 56m 4252 S 4.0 0.7 74:18.53 mysqld
24732 root 15 0 13380 1760 808 R 1.0 0.0 0:10.44 top
313 root 10 -5 0 0 0 S 0.3 0.0 90:25.28 kswapd0
22040 nobody 15 0 63148 3272 1572 S 0.3 0.0 0:00.30 httpd
22136 nobody 15 0 63148 3260 1572 S 0.3 0.0 0:00.21 httpd
22291 nobody 15 0 63148 3280 1580 S 0.3 0.0 0:00.18 httpd
22327 nobody 16 0 63148 3280 1580 D 0.3 0.0 0:00.20 httpd
22406 nobody 15 0 63148 3276 1580 S 0.3 0.0 0:00.18 httpd
22522 nobody 16 0 63148 3268 1580 S 0.3 0.0 0:00.10 httpd
23553 nobody 16 0 63148 3244 1556 S 0.3 0.0 0:00.09 httpd
23556 nobody 15 0 63148 3256 1568 S 0.3 0.0 0:00.09 httpd
26260 nobody 16 0 63148 3296 1608 S 0.3 0.0 0:00.13 httpd
26618 nobody 16 0 63148 3244 1556 S 0.3 0.0 0:00.13 httpd
28849 nobody 16 0 63148 3240 1556 S 0.3 0.0 0:00.04 httpd
28903 nobody 15 0 63148 3208 1532 S 0.3 0.0 0:00.02 httpd
29533 nobody 15 0 0 0 0 Z 0.3 0.0 0:00.02 httpd <defunct>
29558 nobody 15 0 63148 3236 1548 S 0.3 0.0 0:00.01 httpd
29587 nobody 15 0 63148 3216 1536 S 0.3 0.0 0:00.01 httpd
29592 nobody 15 0 63148 3208 1532 S 0.3 0.0 0:00.02 httpd
1 root 15 0 10344 576 544 S 0.0 0.0 0:05.36 init
2 root RT -5 0 0 0 S 0.0 0.0 3:58.90 migration/0
3 root 34 19 0 0 0 S 0.0 0.0 6:15.52 ksoftirqd/0
4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
5 root RT -5 0 0 0 S 0.0 0.0 0:12.33 migration/1
6 root 34 19 0 0 0 S 0.0 0.0 0:30.07 ksoftirqd/1
7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1
8 root RT -5 0 0 0 S 0.0 0.0 0:02.57 migration/2
9 root 34 19 0 0 0 S 0.0 0.0 0:02.84 ksoftirqd/2
10 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/2
11 root RT -5 0 0 0 S 0.0 0.0 0:11.61 migration/3
12 root 34 19 0 0 0 S 0.0 0.0 0:01.12 ksoftirqd/3
13 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/3
14 root 10 -5 0 0 0 S 0.0 0.0 0:00.22 events/0
15 root 10 -5 0 0 0 S 0.0 0.0 0:00.10 events/1
16 root 10 -5 0 0 0 S 0.0 0.0 0:00.16 events/2
17 root 10 -5 0 0 0 S 0.0 0.0 0:00.09 events/3
18 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper
87 root 10 -5 0 0 0 S 0.0 0.0 0:00.03 kthread
94 root 10 -5 0 0 0 S 0.0 0.0 0:00.78
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