Optymalizacja bazy mysql
: 13 lutego 2011, 13:24
Dzisiaj zmieniłem serwer na Lighttpd i moje forum działa dużo lepiej. Ale chciałbym jeszcze z optymalizować mysql, baza danych ma 1,5GB.
Serwer vps
Pamięć ram
Guaranteed RAM 2GB
Burstable RAM 4GB
virtualizacja OpenVZ
/etc/mysql/my.cnf
oraz inne przydatne dane:
Serwer vps
Pamięć ram
Guaranteed RAM 2GB
Burstable RAM 4GB
virtualizacja OpenVZ
/etc/mysql/my.cnf
Kod: Zaznacz cały
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
#
# * IMPORTANT
# If you make changes to these settings and your system uses apparmor, you may
# also need to also adjust /etc/apparmor.d/usr.sbin.mysqld.
#
user = mysql
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 16M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
#max_connections = 100
#table_cache = 64
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 16M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
log_error = /var/log/mysql/error.log
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem
[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/
Kod: Zaznacz cały
ps auxf
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 23308 1520 ? Ss 10:05 0:00 init
root 14200 0.0 0.0 49256 1088 ? Ss 10:05 0:00 /usr/sbin/sshd
root 30046 0.0 0.0 70608 3248 ? Ss 11:33 0:00 \_ sshd: root@pts/0
root 30258 0.0 0.0 19416 2176 pts/0 Ss 11:33 0:00 \_ -bash
root 3506 0.0 0.0 15244 1116 pts/0 R+ 12:15 0:00 \_ ps auxf
proftpd 19633 0.0 0.0 69844 1888 ? Ss 10:05 0:00 proftpd: (accepting connections)
www-data 19664 0.1 0.1 91128 4744 ? S 10:05 0:12 /usr/sbin/lighttpd -f /etc/lighttpd/lighttpd.conf
www-data 19670 0.0 0.3 380216 15868 ? Ss 10:05 0:00 \_ /usr/bin/php-cgi
www-data 19742 1.5 1.2 398420 51732 ? S 10:05 1:59 | \_ /usr/bin/php-cgi
www-data 19753 1.4 1.3 401288 58632 ? S 10:05 1:52 | \_ /usr/bin/php-cgi
www-data 19755 1.3 1.4 405864 62824 ? S 10:05 1:48 | \_ /usr/bin/php-cgi
www-data 19757 1.4 1.5 403764 62928 ? S 10:05 1:53 | \_ /usr/bin/php-cgi
www-data 19674 0.0 0.3 380216 15868 ? Ss 10:05 0:00 \_ /usr/bin/php-cgi
www-data 19743 3.2 1.3 400112 56992 ? S 10:05 4:12 \_ /usr/bin/php-cgi
www-data 19744 3.2 1.5 403996 64104 ? S 10:05 4:11 \_ /usr/bin/php-cgi
www-data 19746 3.2 1.4 401780 61812 ? R 10:05 4:16 \_ /usr/bin/php-cgi
www-data 19754 3.1 1.2 399296 54384 ? S 10:05 4:08 \_ /usr/bin/php-cgi
root 20023 0.0 0.0 25792 1556 ? Ss 10:05 0:00 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 105:104
mysql 28001 14.9 1.8 263512 78568 ? Ssl 10:16 17:48 /usr/sbin/mysqld
root 17446 0.0 0.0 37200 2252 ? Ss 11:38 0:00 /usr/lib/postfix/master
postfix 17448 0.0 0.0 39424 2400 ? S 11:38 0:00 \_ qmgr -l -t fifo -u
postfix 17449 0.0 0.0 39264 2240 ? S 11:38 0:00 \_ pickup -l -t fifo -u -c
postfix 19806 0.0 0.0 41800 3168 ? S 11:39 0:00 \_ tlsmgr -l -t unix -u -c
postfix 3441 0.0 0.0 46064 3796 ? S 12:15 0:00 \_ smtpd -n smtp -t inet -u -c -o stress=
postfix 3443 0.0 0.0 39264 2200 ? S 12:15 0:00 \_ proxymap -t unix -u
postfix 3445 0.0 0.0 39264 2200 ? S 12:15 0:00 \_ anvil -l -t unix -u -c
postfix 3451 0.0 0.0 39276 2228 ? S 12:15 0:00 \_ trivial-rewrite -n rewrite -t unix -u -c
root 18311 0.0 0.0 16900 720 ? Ss 11:39 0:00 /usr/sbin/dovecot -c /etc/dovecot/dovecot.conf
root 18312 0.0 0.0 75064 3188 ? S 11:39 0:00 \_ dovecot-auth
root 18314 0.0 0.0 74932 3244 ? S 11:39 0:00 \_ dovecot-auth -w
dovecot 18341 0.0 0.0 18696 2100 ? S 11:39 0:00 \_ pop3-login
dovecot 18342 0.0 0.0 18696 2096 ? S 11:39 0:00 \_ pop3-login
dovecot 18343 0.0 0.0 18712 2112 ? S 11:39 0:00 \_ imap-login
dovecot 18344 0.0 0.0 18712 2112 ? S 11:39 0:00 \_ imap-login
dovecot 18345 0.0 0.0 18712 2108 ? S 11:39 0:00 \_ imap-login
dovecot 28163 0.0 0.0 18696 2096 ? S 11:57 0:00 \_ pop3-login
Kod: Zaznacz cały
free
total used free shared buffers cached
Mem: 4194304 794068 3400236 0 0 0
-/+ buffers/cache: 794068 3400236
Swap: 0 0 0Kod: Zaznacz cały
vmstat 1 10
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 0 0 3390816 0 0 0 0 90 155 0 552 3 1 91 5
1 0 0 3390812 0 0 0 0 4 0 0 16036 3 1 94 2
0 0 0 3390812 0 0 0 0 0 0 0 18808 4 0 96 0
1 0 0 3390812 0 0 0 0 8 0 0 15825 1 0 98 1
0 0 0 3390812 0 0 0 0 8 88 0 13590 1 0 98 0
0 0 0 3390812 0 0 0 0 0 0 0 17742 2 0 98 0
0 0 0 3390812 0 0 0 0 0 0 0 15814 6 1 93 0
0 0 0 3390812 0 0 0 0 0 0 0 17916 0 0 100 0
1 0 0 3391488 0 0 0 0 16 0 0 16938 1 0 98 0
0 0 0 3391488 0 0 0 0 40 100 0 18548 1 0 99 0Kod: Zaznacz cały
mysql> SHOW FULL PROCESSLIST;
+-------+------+-----------+------+---------+------+----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Id | User | Host | db | Command | Time | State | Info |
+-------+------+-----------+------+---------+------+----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| 12741 | root | localhost | NULL | Query | 0 | NULL | SHOW FULL PROCESSLIST |
| 12752 | vb | localhost | vb | Query | 0 | Sorting result | SELECT
st.*, sd.founded
FROM
vb_seoqueries_data sd
LEFT JOIN
vb_seoqueries_terms st
ON
sd.stid = st.stid
WHERE
st.ban = 0
AND
sd.page_type = 'showthread'
AND
sd.page_id = 232562
ORDER BY
sd.founded DESC LIMIT 25 |
+-------+------+-----------+------+---------+------+----------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
2 rows in set (0.13 sec)
mysql>