Narrowing Down Sites MySQL Cpu Usage
Jul 27, 2008
I'm no SQL expert so I'm not exactly sure what to look for in-depth here. However, I noticed that MySQL would periodically raise to 98% cpu usage in top. So, I checked it out and turns out every time you load the front page of a site I host it takes about 30 seconds to load and its during that time that MySQL is freaking out.
I know the user relies heavily on MySQL, however I want to try to narrow down the problem as much as possible for them. Any recommendations on what else to look for?
View 5 Replies
ADVERTISEMENT
Apr 3, 2009
We want to serve web pages and I think we're getting very close to picking a partner for that. But we also want to have a secure, HA mySQL instance to vend serial numbers to purchased products. This means two more servers at separate data centers behind a load balancer. HA web servers are pretty expensive, is there a mySQL only solution that would be cheaper?(Connectria?) The load would be very light....
View 3 Replies
View Related
Jun 14, 2007
Many big web hosts provide details CPU usage stats for clients
For example, blue host provide cpu details like
[url]
View 2 Replies
View Related
Oct 29, 2009
I'm trying to write an article about webhosting. I've completed most of the article but there are some points I still can't figure out.
a) I'm actually confused about this: is limiting of cpu usage the same as limiting cpu cycles or even cpu throttling? I see these terms mentioned everywhere but they're all quite confusing.
b) And also, where can I find good sites for tracking webhost uptime and with some comprehensive data? I've only found this comprehensive site so far but have failed to find any others: [url]
And any other sites I found have been mediocre.
View 1 Replies
View Related
Nov 17, 2007
I am looking for a VPS host in the $50 dollar range for 2 small to medium sized vBulletin forums. I have read about RAM usage and hope that the price I can afford can handle a not so big vBulletin forum or two, I will optimize them anyway but still. I am also concerned about mysql max connection errors.
Two, among others, of the names that I keep seeing good things about are liquidweb and jaguarpc, however I notice through google cache that liquidweb used to have a customer forum, but it doesn't seem to exist anymore? maybe there is a good explanation that I am missing? but support forum not existing anymore doesn't sound good in my opinion.
Jagaurpc's own forums has around 30 'emergency maintenance' threads over the last 6 weeks alone, again that doesn't sound good to me, even if it means that they are on top of it still so many 'emergency' situations can't be good?
Of course I prefer to have managed VPS as the above two seem to offer and helpfulness especially initially during setup. I hope to get opinions on these couple of issues specific to them and general recommendations on VPS
View 6 Replies
View Related
Jun 16, 2008
What have you found to be the best tuning sites for MySQL?
I'm getting into a bit of trouble. We have a weather site, and with all of the traffic, we're getting a little tapped out. When the loads hit between 134 and 160, the mail clients start to time out. Apache is still pretty fast, although it takes a little longer once you cross loads of 80, 5 second page loads, but when it hits between 130 and 160, I'm seeing 15-20 second page loads. DA is impossible above 80 but SSH is still very workable. Apache is tweaked to the max. I've kicked up some of the sizes in MySQL several weeks ago, and that did it them. However, we're taking on about 22,000 to 25,000 uniques an hour now. We normally can handle that no problem, but people are asking for maps a lot more now with the flooding and all. That requires a lot of MySQL lookups and the CPU creating a lot more maps. The maps I already cache for the duration, which is 15 minutes. The only horse I have left to whip is MySQL. After that, it will probably be a move to FreeBSD 7, but I'd like to throw in a few tweaks yet before we do that.
View 8 Replies
View Related
Feb 27, 2007
I am reading the BYO Database Driven Website Using PHP and MySQL and I am ready to play around a bit. I was wondering if anyone could recommend a quality provider with this language. I have had problems with some in the past when using Joomla so I am trying eleviate that problem from the get-go.
View 6 Replies
View Related
Jan 27, 2007
I just switched to a new server - I went from a Dual Opteron 248 with 3GB of RAM to a Dual Clovertown with 4GB of RAM. Yet, despite having mild traffic right now, my load is rather high and my memory usage is like 80% (which is ridiculous, since that would mean I would be maxing out on the old box).
For some reason, my servers usually lose access when I get around 400 people on TEXT-BASED, non-MySQL pages? How is that possible? I have really solid servers, yet people running basic Pentiums with 1 or 2GB never run into this issue.
Is there any good, cheap site that would be able to properly optimize mySQL and Apache to lower the load and figure out why the memory usage is so high? Platinum Server Management never really got this done, so even though they're great for other support issues, please don't recommend them.
View 0 Replies
View Related
May 18, 2007
After running for a while mysql suddenly starts using 100% CPU and my site goes down due to apache waiting with 150 sleeping processes.
Here is the top stats
PHP Code:
top - 00:20:47 up 12:01, 2 users, load average: 1.11, 1.04, 0.95
Tasks: 200 total, 2 running, 198 sleeping, 0 stopped, 0 zombie
Cpu(s):100.0%us, 0.0%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 1004152k total, 618132k used, 386020k free, 118436k buffers
Swap: 2000084k total, 0k used, 2000084k free, 282372k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2011 mysql 18 0 177m 43m 5684 S 99.9 4.5 86:51.60 mysqld
14877 root 15 0 2360 1216 860 R 0.3 0.1 0:00.11 top
1 root 15 0 1948 648 556 S 0.0 0.1 0:00.97 init
ps ax | grep apache -c
152
On restarting mysql everything goes back to normal.
Can someone tell me how I could go about rectifying this?
I'm sure the server can take the load, coz before this the site was on a way slower machine and worked flawlessly.
View 11 Replies
View Related
May 11, 2007
is there any way to find out which users are most intensively using mysql? i've installed mytop which gives me some info, but the only user it shows connected is me (i.e. localhost) with no break down of what tables are being used etc.
also in whm i can see mysql has consuming quite a bit of memory/cpu, but it doesn't show me individual users; just the service as a whole.
View 3 Replies
View Related
Dec 20, 2007
I am using lighttpd php and mysql.
How to lower the cpu usage?
What's the best way to monitor mysql usage?
Quote:
top - 10:39:48 up 10 days, 35 min, 1 user, load average: 8.22, 9.38, 8.50
Tasks: 132 total, 5 running, 127 sleeping, 0 stopped, 0 zombie
Cpu(s): 73.5%us, 22.3%sy, 0.0%ni, 2.1%id, 0.0%wa, 0.1%hi, 2.0%si, 0.0%st
Mem: 2075000k total, 1919256k used, 155744k free, 113660k buffers
Swap: 2031608k total, 56k used, 2031552k free, 1177200k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21899 mysql 20 0 200m 53m 4752 S 182 2.6 8100:18 mysqld
2548 lighttpd 20 0 20288 16m 680 S 19 0.8 878:33.76 lighttpd
9759 lighttpd 20 0 23168 7880 3048 S 10 0.4 8:50.96 php-cgi
30959 lighttpd 20 0 23164 7896 3096 S 10 0.4 11:40.95 php-cgi
9732 lighttpd 20 0 23204 7544 2664 S 8 0.4 8:59.42 php-cgi
10671 lighttpd 20 0 23248 7612 2664 S 8 0.4 4:51.95 php-cgi
9769 lighttpd 20 0 23312 8012 3048 S 7 0.4 8:55.61 php-cgi
9771 lighttpd 20 0 23104 7312 2584 S 7 0.4 8:50.33 php-cgi
10601 lighttpd 20 0 23336 8032 2996 S 7 0.4 4:56.21 php-cgi
31091 lighttpd 20 0 23064 7860 3100 S 7 0.4 11:30.69 php-cgi
9782 lighttpd 20 0 23116 7880 3060 S 7 0.4 8:57.46 php-cgi
8559 lighttpd 20 0 23396 7780 2668 R 6 0.4 6:43.16 php-cgi
View 7 Replies
View Related
Nov 28, 2007
I have 2 ecommerce sites now hosted at 2 different shared locations, both sites offer same exact products and pricing. I am in the process of elancing out the recode/rebuild for both sites to share one mysql database, cart and to be housed together in one VPS.
I plan to put them both on 1 windows VPS (they are asp) each with its own separate IP but have heard this can cause problems with search engines especially google. I have great natural organic right now (1st position for 5 of my demo keywords) and dont want to put that at risk but getting really tired of 2 separate backends, carts, hosting etc..
View 4 Replies
View Related
Nov 6, 2009
Does anyone know if MySQL 5.1 or 5.0 uses less memory than 4.1 does?
View 3 Replies
View Related
Apr 25, 2008
how to set MAX_CONNECTIONS_PER_HOUR for one of my CPANEL USER (like:
cpaneluser_somesubuser) for all his databases?
I tried:
Quote:
mysql> GRANT USAGE ON *.* TO 'cpaneluser_somesubuser'@'localhost' WITH MAX_CONNECTIONS_PER_HOUR 10;
View 2 Replies
View Related
Aug 14, 2008
I'm having a problem with high MySQL CPU usage on my server, one of my sites is getting hit pretty hard right now and MySQL is just killing the box. Its averaging a load of over 20, CPU usage is around 130%.
here is my my.cnf file. is there anything in their that should be changed to help lower the CPU usage?
# The MySQL server
[mysqld]
port= 3306
socket= /var/lib/mysql/mysql.sock
skip-locking
key_buffer = 256M
max_allowed_packet = 1M
table_cache = 512
max_connections=500
sort_buffer_size = 2M
read_buffer_size = 2M
read_rnd_buffer_size = 8M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size = 32M
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 2
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates
[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
Server Specs.
Pentium E 2.0Ghz
2GB ram
2x 320GB hard drives.
Cent OS 5
Cpanel
View 5 Replies
View Related
Jul 21, 2008
My mysql is using alot of memory although there is not much data into the mysql tables.
I tried to control mysql usage by editing my.cnf file but that didnt help.
Which variables should I edit in my.cnf to keep mysql using low memory?
I edited sort_buffer_size, key_buffer_size but that didnt help much. It uses alot of per-thread memory as well.
View 9 Replies
View Related
Jan 30, 2007
I need some help my CPU (Intel Core 2 Duo 1.7 Ghz) always gets high usage from mysql sometimes its using 95% cpu etc... How can I modify my.cnf to use less CPU and more ram since I have 3gb ram installed?
here is my.cnf
Code:
[mysqld]
back_log = 5
skip-innodb
max_connections = 400
key_buffer = 190M
myisam_sort_buffer_size = 156M
join_buffer_size = 4M
read_buffer_size = 4M
sort_buffer_size = 5M
table_cache = 1024
record_buffer = 1024
thread_concurrency = 2
long_query_time = 1
thread_cache = 1024
thread_cache_size = 992025
wait_timeout = 13
connect_timeout = 5
tmp_table_size = 64M
max_heap_table_size = 16M
max_allowed_packet = 16M
max_connect_errors = 500
read_rnd_buffer_size = 1024
bulk_insert_buffer_size = 32M
query_cache_limit = 1M
query_cache_size = 64M
query_cache_type = 1
query_prealloc_size = 163840
query_alloc_block_size = 32768
low_priority_updates=1
default-storage-engine = MyISAM
[mysqld_safe]
nice = -2
open_files_limit = 4096
[mysqldump]
quick
max_allowed_packet = 16M
[myisamchk]
key_buffer = 64M
sort_buffer = 64M
read_buffer = 32M
write_buffer = 32M
View 1 Replies
View Related
Mar 9, 2007
I'm always having MySQL consuming quite a bit of cpu & ram.
what's happening here?
PHP Code:
mysql 27519 7.2 12.8 158736 132496 ? Sl Mar08 180:57 /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --pid-file=/var/lib/mysql/server.hostname.pid --skip-external
I have replaced my server's real hostname to server.hostname
View 3 Replies
View Related
Mar 3, 2007
is there is any way or command to know every account on the server how much it using for mysql space?
i know i can know it from cpanel page but it's for one account is there a way to make a list for the usage?
and also i want if there is any wait to limit the database size?
cuz i want make a limitation for my clients every account cannot put any databases more thatn 100MB size?
View 5 Replies
View Related
Feb 10, 2007
I am very low of system resources but wish to use MYSQL as my database backend so I have installed MYSQL 4.0 on my Debian Sarge 3.1 VPS with linuxthreads and configured it to use least possible resources as my VPS only offers 32MB main memory. Generally I use the PS command to get the memory usage of running processes. But MYSQL being threaded confuses me. My system uses linuxthreads so all the threads get listed as seperate processes but show same stats in PS command output. On initialization, MYSQL starts 3 threads which according to documentation, are necessary for its functioning. This is what I see:
root 139 0.0 0.0 2436 4 ? S Feb07 mysqld_safe
mysql 163 0.0 4.5 5480 1264 ? S Feb07 0:02 mysqld
mysql 164 0.0 4.5 5480 1264 ? S Feb07 0:00 mysqld
mysql 165 0.0 4.5 5480 1264 ? S Feb07 0:00 mysqld
Is that means MYSQL is using only 1264 Kb of real memory? If that is the case, I am really happy about my tweaking skills. After doing a query through PHP, the output becomes:
root 139 0.0 0.0 2436 4 ? S Feb07 mysqld_safe
mysql 163 0.0 4.5 5510 1278 ? S Feb07 0:02 mysqld
mysql 164 0.0 4.5 5510 1278 ? S Feb07 0:00 mysqld
mysql 165 0.0 4.5 5510 1278 ? S Feb07 0:00 mysqld
Thats just very nominal resource usage. I am assuming that what PS is showing are just duplicate entries for a single MYSQLD process and 1278 Kb can be safely taken as its RAM usage. I hope it is not (1278 X No. of mysqld threads).
View 0 Replies
View Related
Aug 23, 2007
I had a 280 MB MySQL db on a 384 MB Linux Dual Xeon 3.2 GHz VPS (no CP, no additional software) and it was no where near enough. Even if I upgraded the VPS to say 1 GB of Memory, it would take no time at all to over load it at this rate. There must be something wrong with the setup, I can't see MySQL being so resource heavy... or is it?
View 7 Replies
View Related
Aug 13, 2009
I'm checking my CPU/Memory/MySQL Usage and I'm seeing that something called Munin is running at 54%. That is apparently the average for today. Can anyone give me any insight as to what this is?
Wikipedia classifies Munin as a network monitoring application. I don't think it should be using this much processing.
It appears that I may have enabled this plugin when I rebuilt my apache using EasyApache. Are there any big benefits to this? Looking at the graphics at first glance it doesn't look like there is. but then again, I'm not that knowledgable about this stuff.
View 1 Replies
View Related
Aug 3, 2008
just noticed mysql cpu usage has shot up from its usual 5-10% cpu to 30%+. domains are as normal and no extraordinary php processes.
any way i can tell what users are most heavily running mysql? (as in number queries / slow queries etc?) i know mysqladmin processlist but that only gives me a snapshot, whereas i want to see over 24 hours, who used mysql the most...
View 6 Replies
View Related
Feb 1, 2007
What is the average memory/cput usage for httpd connections.?One of the site is using 2.8% memory. Is it acceptable for 1 GB RAM servers?
View 6 Replies
View Related
Apr 20, 2008
on my server i have 104 accounts and the MySQL Usage for th cpus is 25.23
like this pic [url] is that danger? and how can i resolve it?
View 6 Replies
View Related
Aug 2, 2008
Not displaying CPU/Memory/MySQL Usage stats.Can u tell me how can i do it.
View 2 Replies
View Related
Oct 12, 2007
my server is jammed and takes minutes to load simple pages, can you please take a look ath the following image, its show under "CPU %" for mysql 177, does that mean mysql is using 177% of resources of cpu?
View 3 Replies
View Related
Jun 23, 2009
It is possible to show resources usage stat. to customers?
Any addons & scripts?
This is very important function, but cpanel didn't have it.
I created same thread to forums.cpanel.net but no replies.
View 8 Replies
View Related
Mar 18, 2009
One of my friends uses a popular shared hosting provider, and I was assisting him with a web site issue earlier.
I noticed the following warning in the host's control panel:
"[MySQL databases] may not be used for log evaluation operations, ad clicks, chat systems, banner rotations, or similar applications putting extreme loads on the database under any circumstances."
Is this common at other shared hosts?
View 14 Replies
View Related
Aug 8, 2008
I have 2 identical Fedora8 boxes with Apache 2.2.8, MySQL 5.0.45 and PhP 5.2.4. I use one as the Web+DB server (say box A), and the other (box B) just as the Web server connecting to the DB server on box A. I use this 2 machine configuration to test a LAMP based-Web application. I have a client program on other machines that can emulate a massive web workload to these 2 servers; it can emulate hundreds to thousands of users using the application simultaneously.
Before running the test, the connection to the DB server from both boxes seem fine. Using the mysql client program on either box A or B trying to connect to the DB, the connection goes through instantly. In the /etc/my.cnf file, I have max_connections=4096 and max_user_connections=4096. Note that the web app uses one single db user to connect to the db. To allow remote connection, I inserted one record into the user table of the mysql db whose the host field's value is '%' (allow connection from all remote hosts).
After running the test (which I found out that many requests sent to box B failed), mysql client program on box A is still able to connect to the db instantly; but the one on box B has a problem: it takes extremely long (5 - 10 minutes or even more) to establish the connection, it doesn't time out, just takes that long. I believe that's the cause for the failure of requests to box B.
View 1 Replies
View Related
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.
View 13 Replies
View Related
