| MusikMixen |
2013-04-14 17:39 |
Behöver lite hjälp med mysql config
jag har kört denna: http://tools.percona.com vilket verkar ha förbättrat allt avsevärt.
Jag körde dock mysqltune och den visar detta.
Någon som kan hjälpa mig att ställa in det "rätt". Vore väldigt tacksam för hjälpen.
mySQL config filen nu
Kod:
#
# 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
#
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
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
key_buffer_size = 1995M
myisam_recover = FORCE,BACKUP
tmp_table_size = 32M
max_heap_table_size = 32M
query_cache_type = 0
query_cache_size = 0
max_connections = 500
thread_cache_size = 50
open_files_limit = 65535
table_definition_cache = 4096
table_open_cache = 4096
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
#
# Error logging goes to syslog due to /etc/mysql/conf.d/mysqld_safe_syslog.cnf.
#
# 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/
Detta säger mysqltune:
Kod:
-------- Performance Metrics -------------------------------------------------
[--] Up for: 21h 14m 4s (15M q [198.778 qps], 1M conn, TX: 36B, RX: 3B)
[--] Reads / Writes: 95% / 5%
[--] Total buffers: 74.0M global + 2.7M per thread (500 max threads)
[OK] Maximum possible memory usage: 1.4G (17% of installed RAM)
[OK] Slow queries: 0% (0/15M)
[OK] Highest usage of available connections: 8% (40/500)
[OK] Key buffer size / total MyISAM indexes: 16.0M/2.5M
[OK] Key buffer hit rate: 100.0% (87M cached / 4K reads)
[!!] Query cache efficiency: 0.0% (0 cached / 12M selects)
[OK] Query cache prunes per day: 0
[!!] Sorts requiring temporary tables: 11% (147K temp sorts / 1M sorts)
[!!] Joins performed without indexes: 286717
[!!] Temporary tables created on disk: 48% (641K on disk / 1M total)
[OK] Thread cache hit rate: 97% (32K created / 1M connections)
[!!] Table cache hit rate: 19% (377 open / 1K opened)
[OK] Open file limit used: 1% (674/65K)
[OK] Table locks acquired immediately: 99% (15M immediate / 15M locks)
-------- Recommendations -----------------------------------------------------
General recommendations:
Add skip-innodb to MySQL configuration to disable InnoDB
Run OPTIMIZE TABLE to defragment tables for better performance
MySQL started within last 24 hours - recommendations may be inaccurate
Enable the slow query log to troubleshoot bad queries
Adjust your join queries to always utilize indexes
When making adjustments, make tmp_table_size/max_heap_table_size equal
Reduce your SELECT DISTINCT queries without LIMIT clauses
Increase table_cache gradually to avoid file descriptor limits
Variables to adjust:
query_cache_limit (> 1M, or use smaller result sets)
sort_buffer_size (> 1M)
read_rnd_buffer_size (> 256K)
join_buffer_size (> 128.0K, or always use indexes with joins)
tmp_table_size (> 32M)
max_heap_table_size (> 32M)
table_cache (> 4096)
Tack på förhand! |
