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Доброго времени суток уважаемые форумчане.
бьюсь с проблемой уже около месяца, я даже не знаю куда копать.
Суть такова, есть 2 машины, Мускул и Веб, между ними 1gb\s канал.
Сайт открывается секунд по 5, если отключить запросы к мускулу (или перенести сайт на машину с мукулом) то сайт начинает летать. Любые запросы от локалхоста мускул выполняет очень быстро, любые запросы с локальных IP начинает тормозить.
Между машинами пинг =1мс, Файлы я качаю по 50мб\с, а дамп базы выполняется дай бог о скоростью 10кб\с
не могу понять чем вызваны такие тормоза (((.
Таже проблема наблюдается с доступом по SSH к самой удаленной машине. так что мб дело совсем не в мускуле ??
ОС Ubuntu server 10.04
Конфигурация my.cnf
#
# 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/serve … ables.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
default-character-set = cp1251
# 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
default-character-set = cp1251
character_set_server = cp1251
collation_server = cp1251_general_ci
skip-character-set-client-handshake
#
# 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 = 256M
max_allowed_packet = 256M
thread_stack = 16M
thread_cache_size = 32
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover = BACKUP
max_connections = 5000
table_cache = 1000
thread_concurrency = 1000
#
# * Query Cache Configuration
#
query_cache_limit = 128M
query_cache_size = 128M
#
# * 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 = 256M
#
# * 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/
Очень надеюсь на вашу помощь.
готов заплатить за решение проблемы, пишите в Асю 482-121-961
Отредактированно POPsy (09.10.2010 07:18:11)
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Добавьте прав на подключение к MySQL не по имени машинки, а по IP,
после чего добавьте параметр --skip-name-resolve в раздел mysqld и
перезапустите демона: скорее всего, Вы упираетесь в таймаут расшиф-
ровки обратной зоны DNS при подключении.
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благодарю, тема более не актуальна
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