Hi,
I've noticed that from yesterday, my OpenVZ VPS, started to lag, I host a few sites on it that have total of 300-400 active users all time.
VPS Specs:
CPU: 4 Cores / 69% CPU usage
HDD: 40GB / 30 Used
RAM: 4GB / 1.5GB Free
MySQL process shows 180-250% cpu usage almost every second, and my VPS provided does not like that. The problem started yesterday when my views on the sites increased.
I think that both databases use InoDB although I'm not 100% sure.
I tried disabling some intensive MySQL queries from the website, but that didn't help a lot, there is about milion rows of data and maybe more in the database of the seconds site. When I disable the second site from the apache and restart apache2 and mysql service load decreases drastically.
I don't have a lot of knowledge about tweaking the database, i'm more a programmer than sysadmin, but currently I need to do both.
my.cnf:
Code:
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
language = /usr/share/mysql/english
bind-address = XXXXX
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
myisam-recover = BACKUP
query_cache_limit = 1M
query_cache_size = 16M
expire_logs_days = 10
max_binlog_size = 100M
[mysqldump]
quick
quote-names
max_allowed_packet = 16M
[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
[isamchk]
key_buffer = 16M
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
I've tried increasing buffer sizes but, nothing has changed.
What do you recommend me to do in order to decrease that load?
Best Regards!
