Vbulletin Server Optimization
Nov 13, 2008
I'm on a dedicated server and the httpd service of the server keeps going down which results in downtime for the number of hours until i dont realise that the site is down.
So when I realise the site is down, I ask the hosting support to look into the issue, they tell me the server loads are high and ask me to upgrade even when I just upgraded the server last month.
Generally the forum has around (250 - 300 members) + guests visitors online and is in the alexa top 20k sites.
The first thing I would want to do is hire a person who specializes in server optimization but then I have heard a lot of bad things like the server admin stealing databases and selling it in open market.
The second thing I wanted to do is contact vbulletin for server optimization but they need me to give them server specs and I dont know how to obtain them.
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Jul 22, 2007
I've recently moved a popular forum from one dedicated server to two dedicated servers.
1 server for HTTPD
1 server for MYSQL
The forum is running very slowly, even though server load is low on both servers.
I have tried different mysql optimizations but nothing seems to be working.
Would anyone be willing to help me solve this issue? If so, please PM me. I am happy to pay for your time.
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Apr 18, 2007
i am having quite problem with my server i cant get it to optimize it. During peak times the load goes beyond 10 sometimes 20 to 50 sometimes its just under 1. I have my webserver running on P4 Core 2 6300, 1 GB ram, 250 HDD, on CentOS 4.4 (kernel 2.6.9-42.0.10) etc. It has cpanel/whm running Apache 1.3.7, php 4.4, mysql 4.1, mailscanner, eaccelerator, etc i dont know really what other info to show you.
I host about 200 accounts and there are 4 large php forums (not like WHT) running on it. Sometimes pages stop loading especially these forums have to refresh to get page load.
During day there are approx 700-900 connections.
Previously i had phpsuexec and the load never went beyond 4-5, i have removed it to install eaccelerator.
Here are my configurations
httpd.conf
Code:
RLimitMEM 200990378
RLimitCPU 240
Timeout 45
KeepAlive On
MaxKeepAliveRequests 512
KeepAliveTimeout 2
MinSpareServers 25
MaxSpareServers 35
StartServers 15
MaxClients 512
MaxRequestsPerChild 0
my.cnf
Code:
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
skip-innodb
skip-networking
skip-name-resolve
query_cache_limit = 1M
query_cache_size = 64M
query_cache_type = 1
max_connections = 200
max_user_connections = 100
interactive_timeout = 30
wait_timeout = 30
connect_timeout = 10
thread_cache_size = 80
key_buffer = 256M
join_buffer = 1M
max_allowed_packet = 8M
table_cache = 1500
record_buffer = 1M
sort_buffer_size = 1M
read_buffer_size = 1M
max_connect_errors = 100
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 4
myisam_sort_buffer_size = 32M
#log-bin
server-id = 1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 128M
sort_buffer_size = 128M
read_buffer = 1M
write_buffer = 1M
[myisamchk]
key_buffer =128M
sort_buffer_size = 128M
read_buffer = 1M
write_buffer = 1M
[mysqlhotcopy]
interactive-timeout
top
Code:
top - 13:24:33 up 1 day, 23:24, 1 user, load average: 1.99, 2.26, 3.45
Tasks: 174 total, 1 running, 173 sleeping, 0 stopped, 0 zombie
Cpu(s): 13.3% us, 12.1% sy, 0.0% ni, 13.6% id, 31.8% wa, 29.1% hi, 0.0% si
Mem: 1000952k total, 974492k used, 26460k free, 49024k buffers
Swap: 2031608k total, 171580k used, 1860028k free, 288344k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
10804 mysql 15 0 354m 80m 2744 S 35 8.2 4:00.68 mysqld
12849 nobody 15 0 65816 33m 14m S 10 3.4 0:04.56 httpd
2956 named 18 0 66944 18m 1152 S 3 1.9 40:53.96 named
12800 nobody 15 0 57260 28m 17m S 3 2.9 0:06.95 httpd
336 root 15 0 0 0 0 D 3 0.0 112:24.57 kjournald
12854 nobody 15 0 55008 22m 14m S 2 2.3 0:03.68 httpd
12870 nobody 16 0 55108 23m 14m S 1 2.4 0:04.49 httpd
6373 root 0 -20 0 0 0 S 1 0.0 1:13.66 loop0
32021 mailnull 17 0 42500 13m 2480 S 1 1.4 0:09.05 MailScanner
12720 nobody 16 0 56088 22m 12m S 1 2.3 0:04.67 httpd
12877 nobody 15 0 55068 23m 15m S 1 2.4 0:04.05 httpd
12725 nobody 15 0 54836 19m 11m S 1 2.0 0:04.01 httpd
12831 nobody 15 0 55468 25m 16m S 1 2.6 0:03.80 httpd
12859 nobody 15 0 54932 22m 14m S 1 2.3 0:03.75 httpd
7 root 5 -10 0 0 0 S 0 0.0 0:28.61 events/1
30091 root 15 0 2828 520 452 D 0 0.1 0:45.08 syslogd
31213 mailnull 16 0 44896 14m 2472 S 0 1.5 0:13.50 MailScanner
12716 nobody 15 0 56016 24m 14m S 0 2.5 0:04.20 httpd
12774 nobody 15 0 56272 25m 16m S 0 2.6 0:04.76 httpd
12843 nobody 15 0 55156 23m 15m S 0 2.4 0:04.38 httpd
12851 nobody 15 0 56184 21m 11m S 0 2.2 0:03.58 httpd
12853 nobody 15 0 54888 22m 14m S 0 2.3 0:03.39 httpd
12864 nobody 16 0 54920 23m 14m S 0 2.4 0:04.43 httpd
13555 nobody 15 0 54492 21m 13m S 0 2.2 0:02.39 httpd
15385 nobody 16 0 52564 8388 2052 S 0 0.8 0:00.08 httpd
1 root 16 0 2260 396 368 S 0 0.0 0:06.43 init
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Dec 26, 2008
I just got new server:
2.0 GHz, Xeon 5405 (Harpertown) (Quad Core) with CentOS 5 installed. It has 4 gigs of RAM.
I would like to optimize it for php/mysql based forum.
Any suggestions on how to tweak my.cnf or httpd.conf or anything else. My main goal is to optimize it for php/mysql.
I understand I can leave everything the way it is, but I would rather optimize my server, if I can.
Like should I install some kind of memory cache and if yes, which one? Should I edit default settings of PHP?
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Feb 18, 2008
I hope some of you folks could give me some pointers here. I have a server that is used for a gaming clan's purposes. Nothing major as far as games go, but what I got I want running at peak efficiency.
The most important is the Counter-Strike source. I really need the kernel frequency to be tweaked for this. The number one question is can I merely modify the existing config file and recompile that or do I need to start all over? If I could do that is it something like make old or something to that matter?
I am running a couple other servers as well, but there is never a time where all the servers have anyone in them. I keep everything running. After installing some weird stuffs here and there I got the memory usage to go down. I think. Regarding a scenario of having more than one instance of a game, is there any way to share memory between them?
My Swap. Is there a way to force idling games to move to it instead of using physical memory?
The kernel is what I really need to take care of. I'm still somewhat of a n00b and have just switched from centos to debian to top it off. So any tips would make my day. Thanks for reading me.
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May 7, 2009
Hi"Optimization of computing resources has long been an important management issue. One of its aspects concerns server scalability and the question of whether an organization should scale-up or scale out.Assume that the computing performance of the servers can be measured by variable 0 <=p, that their total cost is given by "c" and the relationship between server performance and cost is defined by c=αp^β"
a. What is the cost-performance elasticity(ђ), precisely?
b. What would be the range of values for ђ that would be expected by moore's law and what are its implications?
c. What would be the range of values for ђ that would lead managers to scale-out? Draw a graph and throughly explain the implications.
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Jul 2, 2008
My server is running a AMD Athlon(tm) XP 2000+ (1662 MHz)CPU
I only host one site, a vb forum on my server and its killing the CPU with only 80-100 people online.
The load averages are:
23.73 (1 mins) , 20.39 (5 mins) , 10.88 (15 mins)
and these are the processes that are making it slow:
Code:
ID Owner CPU Command
8003 mysql 34.1 % /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --user=mysql --pid-f ...
7777 apache 2.1 % /usr/sbin/httpd
7911 apache 2.1 % /usr/sbin/httpd
8382 apache 2.1 % /usr/sbin/httpd
7857 apache 1.9 % /usr/sbin/httpd
7776 apache 1.8 % /usr/sbin/httpd
8384 apache 1.7 % /usr/sbin/httpd
7849 apache 1.6 % /usr/sbin/httpd
9159 root 1.6 % /usr/libexec/webmin/proc/index_cpu.cgi
7852 apache 1.5 % /usr/sbin/httpd
8790 apache 1.4 % /usr/sbin/httpd
8724 apache 1.2 % /usr/sbin/httpd
8775 apache 1.2 % /usr/sbin/httpd
8779 apache 1.1 % /usr/sbin/httpd
8841 apache 1.1 % /usr/sbin/httpd
155 root 1.0 % [kswapd0]
8752 apache 1.0 % /usr/sbin/httpd
8881 root 1.0 % /usr/bin/perl /usr/libexec/webmin/virtual-server/collectinfo.pl
8961 apache 1.0 % /usr/sbin/httpd
8759 apache 0.9 % /usr/sbin/httpd
8777 apache 0.9 % /usr/sbin/httpd
8956 apache 0.9 % /usr/sbin/httpd
8962 apache 0.9 % /usr/sbin/httpd ..
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Apr 9, 2007
I have purchased a proxy website using phproxy script hosted at dedicated server. Its now about 4 months and everything is fine but i want to move my site to another dedicated server provider because current one has some issues.
When i purchased that site seller told me that he has optimized server and installed some scripts {server scripts} to get best out of proxy website. Now seller is out of my contact.
I am very much pleased with current server settings but i need to move. So i want to make sure that i can optimize new server and install same scripts to keep going with current performance.
I only know about http.conf settings and i have noted it ... plz help me about copying every other settings which that guy had done to optimize the server and how can i know which and where those scripts are installed which has made server quite efficient?
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Jan 15, 2007
Can anyone recommend a good company or someone that would be able to optimize Apache and MySQL on my server? I've slightly configured Apache so that it works well with my server so I'm mainly looking for someone to optimize MySQL (since it's using a lot of cpu).
The server load is pretty high so I'm hoping to reduce it before having to upgrade to a new server.
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Oct 30, 2007
i run a fedora server with plesk 8 on it i was wondering if some one can help me to find the best way to optimize the databases on the server at once my servers contains many clients with unicode data in the database.
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Mar 20, 2007
I currently have a server for proxy websites only.
I have disabled MySQL, is that ok?
Will my statistics software still work (awstats)?
What else can i disable or do to optimize the server for proxy websites.
I'm using the phproxy scripts.
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Jan 24, 2007
I'm sure by now most of you have read the Web Server Optimization Guide by Shaw Networks. It came in handy for me when I was first starting out, I reduced my load & memory usage by tonnes. I thought I would make a new thread with an updated How-To.
Recommended Tools/Programs:
Putty - Free SSH Client - [url]
WinSCP - Free SFTP and SCP Client - [url]
MySQL Optimization:
BACKUP:
cp /etc/my.cnf /etc/my.cnf.backup
Use Pico (pico /etc/my.cnf) or Download via WinSCP for editing,
Delete everything that is currently in the file and add the following...
Code:
[mysqld]
port = 3306
socket = /var/lib/mysql/mysql.sock
skip-locking
skip-innodb
query_cache_limit=8M
query_cache_size=256M
query_cache_type=1
max_connections=500
max_user_connections=100
interactive_timeout=60
wait_timeout=60
connect_timeout=30
thread_cache_size=128
key_buffer=16M
join_buffer=1M
max_allowed_packet=16M
table_cache=1024
record_buffer=1M
sort_buffer_size=2M
read_buffer_size=2M
max_connect_errors=100
# Try number of CPU's*2 for thread_concurrency
thread_concurrency=2
myisam_sort_buffer_size=64M
#log-bin
server-id=1
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
To Save: CTRL-X
Restart Service: "service mysqld restart" or "service mysql restart" or "/etc/rc.d/init.d/mysql restart"
HTTP/APACHE Optimization:
BACKUP:
cp /usr/local/apache/conf/httpd.conf /usr/local/apache/conf/httpd.conf.backup
Use Pico (pico /usr/local/apache/conf/httpd.conf) or Download via WinSCP for editing,
Change the following settings in your httpd.conf...
Set "Timeout" value to "Timeout 60"
Set "KeepAlive" to "KeepAlive on"
Set "KeepAliveTimeout" to "KeepAliveTimeout 3"
Set "MinSpareServers" to "MinSpareServers 16"
Set "MaxSpareServers" to "MaxSpareServers 32"
Set "MaxRequestsPerChild" to "MaxRequestsPerChild 256"
Set "HostnameLookups" to "HostnameLookups Off"
Note:
These settings will not work under all server environments its recommended that you tweak around with the numbers until your web server is running 100% please read Apache documentation before changing any settings so you know what you are changing [url]
To Save: CTRL-X
Restart Service: "service httpd restart" or "/etc/rc.d/init.d/httpd restart"
Installing eAccelerator:
eAccelerator is a further development from mmcache PHP Accelerator & Encoder. It increases performance of PHP scripts by caching them in compiled state, so that the overhead of compiling is almost completely eliminated. [url]
If you run CPanel please visit [url] for an auto-installer which will do all the hard work for you.
Run the following in SSH.
Code:
cd /
mkdir ea
cd ea
wget [url]
bunzip2 eaccelerator-0.9.5.tar.bz2
tar -xvf eaccelerator-0.9.5.tar
cd eaccelerator-0.9.5
export PHP_PREFIX="/usr"
$PHP_PREFIX/bin/phpize
./configure --enable-eaccelerator=shared --with-php-config=$PHP_PREFIX/bin/php-config
make
make install
mkdir /phpcache
chmod 0777 /phpcache
Edit your PHP.INI file and at the bottom add...
Code:
To install as a ZEND extension:
zend_extension="/ea/eaccelerator-0.9.5/modules/eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/phpcache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
OR to install as a PHP extension:
extension="/ea/eaccelerator-0.9.5/modules/eaccelerator.so"
eaccelerator.shm_size="16"
eaccelerator.cache_dir="/phpcache"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"
Restart Service: "service httpd restart" or "/etc/rc.d/init.d/httpd restart"
For a great tutorial on Optimizing host.conf & sysctl.conf visit..
http://www.eth0.us/node/104
Common SSH Commands visit..
[url]
How to block an IP using iptables visit..
[url]
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Apr 21, 2008
So the site got featured on [url]and now the server is drowning...
The Coppermine Gallery usually hovers around 30~50 users daily and now, 1800, and im at a lost as how I should configure mysql to take on such a load. right now it takes about 10 secs or more to load a page and sometimes it would time out. Because it si coppermine, all pages are dynamic and can't be cached -_-"
Here's the my.cnf right now after i played around with the numbers
server spec
Opteron 170 (2ghz)
2gb ram
250 7200rpm
[mysqld]
set-variable=local-infile=0
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
# Default to using old password format for compatibility with mysql 3.x
# clients (those using the mysqlclient10 compatibility package).
old_passwords=1
#skip-networking
back_log = 75
key_buffer = 256M
myisam_sort_buffer_size = 64M
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
table_cache = 1800
thread_cache_size = 384
wait_timeout = 7200
max_connections = 600
connect_timeout = 100
wait_timeout = 12000
tmp_table_size = 100M
max_heap_table_size = 64M
max_allowed_packet = 15M
max_connect_errors = 9999999
read_rnd_buffer_size = 524288
bulk_insert_buffer_size = 8M
query_cache_limit = 40M
query_cache_size = 150M
query_cache_type = 1
query_prealloc_size = 65536
tmp_table_size = 64M
query_alloc_block_size = 131072
default-storage-engine = MyISAM
[mysql.server]
user=mysql
basedir=/var/lib
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
nice = -5
open_files_limit = 8192
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 16M
write_buffer = 16M
httpd.conf
Timeout 20
#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive Off
#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100
#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 15
##
## Server-Pool Size Regulation (MPM specific)
##
# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# ServerLimit: maximum value for MaxClients for the lifetime of the server
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule prefork.c>
StartServers 8
MinSpareServers 5
MaxSpareServers 20
ServerLimit 200
MaxClients 200
MaxRequestsPerChild 1500
</IfModule>
# worker MPM
# StartServers: initial number of server processes to start
# MaxClients: maximum number of simultaneous client connections
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule worker.c>
StartServers 2
MaxClients 150
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild 0
</IfModule>
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Jun 24, 2008
I have a fairly high end server in which I have installed SIM. SIM is restarting Apache up to 10 times a day, presumably due to high load causing un-availability.
On restart, Apache / MYSQL is stable until the load / mem usage begins to climb then it is restarted again. Here are my 'load' stats for today:
Load for today
High (2:18am): 4.63
Low (3:30am): 1.20
Mean: 1.84
Latest: 1.61
Mem usage for today
High (1:36am): 9,192.9 MB
Low (1:48am): 7,995.7 MB
Mean: 8,683.1 MB
Latest: 8,781.7 MB
I have seen it using 20GB RAM before.
I have tried to follow various optimisation guides but these seem tailored to less powerful servers.
The web application I run on this server is almost entirely MYSQL based, with thousands of DB calls a day. Across the entire system I probably get 200,000 bot hits per day or even more. At peak times search engine bots are literally hammering the server.
My server specs are:
# Processor: Quad-Core Xeon Processor * 8
# CPU Speed: 3Ghz
# RAM: 32 GB DDR2
# HDD: 36 GB 15k Raptor X2 + 1TB Sata
# OS: 32Bit CentOS
Changes / optimisation of the actual application is not possible.
My configuration files are:
My.cnf ....
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May 27, 2008
I'm currently in the process of installing a mysql database server on my dedicated game server box. I was using shared hosting before, but i got a complaint from them that i was using too many connections and memory so i have to host the database myself.
Here's the stats of the server:
Dual Core Dual CPU Intel Xeon 3.0Ghz (2 core per cpu & 2 cpu's)
4GB RAM
120GB SATAII Hard Drive
Windows 2003 Enterprise Edition SP2 (180 Day Trial)
Currently, im hosting around 10 game servers on the machine with around 30% CPU load. I'm running with the page file disabled (its using 2 GB of RAM instead). Server runs fine like this (i heard its a performance boost, and it is). Over 2GB of ram are free at all times even when most of the game servers are full.
I want the database server to be able to as many connections are need from the game servers but at the same time i dont want to affect performance of the game servers. Any suggestions on what settings i should use?
I'm currently using these settings:
key_buffer = 512M
max_allowed_packet = 1M
table_cache = 512
sort_buffer_size = 1M
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 16M
max_connections = 100
query_cache_size = 128MB
query_cache_limit = 4MB
tmp_table_size = 30MB
wait_timeout = 120
P.S. The SQL will have 3 databases (AMXBans, SourceBans, & a RP character db). Everytime a player connects to one of my servers, their information is checked against the database if they are an admin. So in total i have around 126 slots for players to connect on.
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Jul 12, 2008
i find a site hacked all the sites are vbulletin and has no protection .. i think it hacked by Fourm home
i mad a search for SSH and i didnt find any thing
can you advice me how to stop this way of hacking plz?
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Jan 10, 2008
What is the best way to setup a server for a vbulletin forum with 500-600 concurrent users.
I am torn between going with 1 large box, or a webserver,database server split.
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Sep 24, 2007
I am trying to transfer my Vb database to another server but I am getting error.
Here's what I did.
1. I exported my old database to my old server to my PC.
2. I imported my database to my new server (different domain)
Now I cannot continue because different errors occur. Please tell me the correct process to do this.
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Jun 18, 2009
Can anyone recommend a Apached and MYSQL optimization expert? I just some optimization done on mysql and apache upgraded... but pache wouldn't restart with the following entries:
MinSpareThreads 25
MaxSpareThreads 35
ThreadsPerChild 25
if i remove above then it starts... but my CPU spikes and I am getting a ton of errors emailed to me:
Invalid SQL:
SELECT COUNT(DISTINCT(userid)) AS count FROM vb_session WHERE vb_session.userid>0 AND vb_session.lastactivity>1245294346;
MySQL Error : Out of memory (Needed 8388580 bytes)
Error Number : 5
Request Date : Wednesday, June 17th 2009 @ 09:39:06 PM
Error Date : Wednesday, June 17th 2009 @ 09:39:06 PM
Its constantly complaining about this same query and i thought i removed all of the vbulletin options...
i am pulling my hair out... cuz my server isn't swapping, ther are 0ver 8GBs in cache.... but my CPU goes up
Here is original problem thread...
[url]
2nd post has recommended config... and my subsequent probs
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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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Apr 17, 2009
I run a large adult vBulletin community with 70,000 members, 1/2 million posts, 186,000 attachments (a lot video), and closing in on 100 million downloads since our start some odd years ago. I've been battling keeping the site up for quite some time, and I am starting to wonder whether we shot too low on the server setup. I figure I would ask the pros here at WHT for some advice.
This is our current setup:
Site server:
Quote:
CPU: Intel(R) Core(TM)2 Duo CPU E4500 @ 2.20GHz
4 Gig ram
250 Gig sata harddrive
Unix FreeBSD 6.2
Apache
MySQL server:
Quote:
CPU: Pentium III/Pentium III Xeon/Celeron (2666.62-MHz 686-class CPU)
Cores per package: 4
4 Gig ram
750 Gig SATA harddrive
Unix FreeBSD 6.4
Apache
Do you think the site would perform better under one server and maybe a more powerful processor? What should I be looking at exactly as far as hardware goes for this type of site. I should note we push about 2.5TB of bandwidth monthly.
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Mar 30, 2008
i get this error after installation my vb in my site
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Oct 12, 2007
I just added a database server in private network and moved the database for Vbulletin Forum to this server.
But some how, the Forum is loading extremely slow compare to before ( when it was on the localhost). Also, Compare to another website on server (using local database) it is much slower.
One thing good is the load is lower
2 servers are connected via 10mbs private link, both servers are at Softlayer.
webserver: Opteron 170, 2GB RAM, 73GB SCSI 15K
database: Quad Xeon 3220, 2GB RAM, 73GB SCSI 15K.
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Jun 18, 2008
I've problem with my system (Dell vostro200) I've Mcafee security center and it will block some scripts running in the system during the browsing. I can't use any of vBulletin forums ( registration and posting ) I can't do even Mcafee online registratation also. I'm not an expert in os configurations.
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Apr 11, 2009
I'm running a Xeon Quad Core 2.5GHz with 2GB RAM. Comments on my setup for shared hosting? (will upgrade ram if people believe that will help with increase page loadtimes.)
XCACHE:
xcache.shm_scheme = "mmap"
xcache.size = 64M
xcache.count = 5
xcache.slots = 16K
xcache.ttl = 3600
xcache.gc_interval = 7200
xcache.var_size = 64M
xcache.var_count = 5
xcache.var_slots = 16K
xcache.var_ttl = 3600
xcache.var_maxttl = 7200
xcache.var_gc_interval = 300
xcache.test = Off
xcache.readonly_protection = Off
xcache.mmap_path = "/dev/zero"
xcache.coredump_directory = ""
xcache.cacher = On
xcache.stat = On
xcache.optimizer = On
MySQL:
[mysqld]
set-variable = max_connections=500
safe-show-database
old-passwords = 1
skip-networking
skip-name-resolve
skip-external-locking
socket = /var/lib/mysql/mysql.sock
skip-locking
key_buffer = 384M
max_allowed_packet = 1M
table_cache = 5120
join_buffer_size = 1M
read_buffer_size = 1M
sort_buffer_size = 2M
read_rnd_buffer_size=8M
myisam_sort_buffer_size=64M
thread_cache_size=8
thread_cache=256
query_cache_limit=12M
query_cache_size=512M
thread_concurrency = 8
wait_timeout=120
connect_timeout=30
long_query_time=5
[isamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
[myisamchk]
key_buffer = 256M
sort_buffer_size = 256M
read_buffer = 2M
write_buffer = 2M
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Feb 27, 2008
MySQL keep giving me error like this:
Warning: mysql_connect() [function.mysql-connect]: Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug in /home/user/public_html/file.php on line 400
Can't create a new thread (errno 11); if you are not out of available memory, you can consult the manual for a possible OS-dependent bug
My server has 5GB SWAP, 2GB RAM
[my.cnf]
key buffer = 512m
read buffer = 4m
sort buffer = 4m
max connection = 500
i learn using a formula key buffer + (read+sort)*max connection
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Feb 12, 2008
I hosted users files on a xfs partition.
I use SATA II disks, and sometimes load is increased when ftp activity is intensive.
Drive where users files are hosted returns values like
hdparm -Tt /dev/sdb
/dev/sdb:
Timing cached reads: 5050 MB in 2.00 seconds = 2528.72 MB/sec
Timing buffered disk reads: 4 MB in 3.30 seconds = 1.21 MB/sec
I noticed a load increase specially when I delete a directory with many small files.
ways to optimyze a xfs partition?
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Jun 14, 2007
currently im on a VPS server and things are fine normally. However whenever there are like 20 users on my site (browser based text game) things get ugly. The sql queries are all needed and don't think it can get much more effiecent.
Anyways my website is very dynamic all information is changing every second.
For example a user when every page they go to or refresh their account is being set to time() to show that they are online at that second. Processor load gets up to like 6 at times and that is when it is virtually impossible to connect to the site.
Is there anythign you recommend? mysql is the top then when i login via ssh and run 'top'
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May 23, 2009
Well, I decided giving it a shot.
I have a large proxy, are getting ~3k pageviews/day.
I only got 128 MB RAM on my VPS, so no panels works on it (not even kloxo/lxa). I would guess apache wont do it in the long run either.
So I decided to go with nginx. But I feel it isn't quite good optimized, as it sometimes takes like 1 minute to load the page.
Here is my current config:
#######################################################################
#
# This is the main Nginx configuration file.
#
# More information about the configuration options is available on
# * the English wiki - http://wiki.codemongers.com/Main
# * the Russian documentation - http://sysoev.ru/nginx/
#
#######################################################################
#----------------------------------------------------------------------
# Main Module - directives that cover basic functionality
#
# http://wiki.codemongers.com/NginxMainModule
#
#----------------------------------------------------------------------
user nginx;
worker_processes 12;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
#----------------------------------------------------------------------
# Events Module
#
# http://wiki.codemongers.com/NginxEventsModule
#
#----------------------------------------------------------------------
events {
worker_connections 1024;
}
#----------------------------------------------------------------------
# HTTP Core Module
#
# http://wiki.codemongers.com/NginxHttpCoreModule
#
#----------------------------------------------------------------------
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] $request '
'"$status" $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
# Load config files from the /etc/nginx/conf.d directory
include /etc/nginx/conf.d/*.conf;
#
# The default server
#
server {
listen 80;
server_name _;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root /usr/share/nginx/html;
index index.php index.html index.htm;
}
error_page 404 /404.html;
location = /404.html {
root /usr/share/nginx/html;
}
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ .php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
location ~ .php$ {
root html;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME /usr/share/nginx/html$fastcgi_script_name;
include fastcgi_params;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /.ht {
# deny all;
#}
}
}
Any ideas on better optimizing?
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Oct 13, 2009
I am facing problem regarding my site. I have dedicated server with WHM/cPanel, i have integrated tomcat with apache , the apache processes are too high aroung 1200-1400, So please guide me howto optimize my apache for better performance.
root@trick [/]# ps aux | grep -c httpd
1403
root@trick [/]# ps aux | grep -c mysql
3
root@trick [/l]# free -m
total used free shared buffers cached
Mem: 4053 3408 645 0 220 1890
-/+ buffers/cache: 1297 2756
Swap: 4094 0 4094
---------------------------------------------
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
<IfModule prefork.c>
StartServers 10
MinSpareServers 10
MaxSpareServers 20
ServerLimit 1000
MaxClients 600
MaxRequestsPerChild 0
</IfModule>
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May 25, 2009
I'm looking to get some tips to optimize my Apache webservers. Now i have 2 apache servers with load balancer. If someone can guide me and bring some tips for this purpose is highly appreciated.
Also, i would like to know about disadvantages of enabling KeepAlive. Recently i have enabled it and found my site load much better. But the disadvantage (that i experienced personally) is after stop browsing for a while (about 40-60 minutes) i need to keep triggering the URL of site several times to get enter the website. If not i can't get into it and it likes the site giving no response at all.
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