راهنمایی در مورد بهینه سازی MySQL

[python]

در زیر نوشته شده مقادیر مورد نظر تغییر بدهید

query_cache_size (>= 8M)
tmp_table_size (> 16M)
max_heap_table_size (> 16M)
thread_cache_size (start at 4)
table_open_cache (> 400)
innodb_buffer_pool_size (>= 183M)

توی my.cnf هیچی نیست خالی هستش
این مقادیر رو هم که میذارم mysql داون میشه و دیگه استارت نمیخوره
میشه یه مقادیر کلی با توجه به این اطلاعات بذارید تا همونارو بذارم؟

[storage]

توی my.cnf هیچی نیست خالی هستش
این مقادیر رو هم که میذارم mysql داون میشه و دیگه استارت نمیخوره
میشه یه مقادیر کلی با توجه به این اطلاعات بذارید تا همونارو بذارم؟

بطور مثال به شکل زیر وارد کنید

query_cache_size=128M

[python]

بطور مثال به شکل زیر وارد کنید

query_cache_size=128M

من به این شکل وارد کردم بازم mysql خاموش شد و روشن نشد

query_cache_size=8M
tmp_table_size=16M
max_heap_table_size=16M
thread_cache_size=4
table_open_cache=400
innodb_buffer_pool_size=183M

[MajorHost]

How to Optimize MySQL
مفید هست براتون

[python]

How to Optimize MySQL
مفید هست براتون

خیلی ممنون
ببخشید من الان این دستور رو اجرا کردم:
cp -f /usr/share/mysql/my-large.cnf /etc/my.cnf
این سایتی که دادین گفته اگه رم بالای 2 گیگ باشه این دستور رو اجرا کنید برای mysql 4+5 رم منم 6 گیگ هستش
الان دیگه بذارم همین بمونه یا مقادیر my.cnf رو تغییر بدم؟

[storage]

از چه ورژنی استفاده می کنید؟

[python]

از چه ورژنی استفاده می کنید؟

MySQL 5.5.31

[storage]

محتوا کامل فایل کانفیگ و لاگ بدهید

[python]

محتوا کامل فایل کانفیگ و لاگ بدهید

فایل کانفینگ:

# Example MySQL config file for large systems.
#
# This is for a large system with memory = 512M where the system runs mainly
# MySQL.
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:
# http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MySQL clients
[client]
#password       = your_password
port            = 3306
socket          = /var/lib/mysql/mysql.sock

# Here follows entries for some specific programs

# The MySQL server
[mysqld]
port            = 3306
socket          = /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 256M
max_allowed_packet = 1M
table_open_cache = 256
sort_buffer_size = 1M
read_buffer_size = 1M
read_rnd_buffer_size = 4M
myisam_sort_buffer_size = 64M
thread_cache_size = 8
query_cache_size= 16M
# Try number of CPU's*2 for thread_concurrency
thread_concurrency = 6

# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin

# binary logging format - mixed recommended
binlog_format=mixed

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id       = 1

# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
#    the syntax is:
#
#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
#    where you replace <host>, <user>, <password> by quoted strings and
#    <port> by the master's port number (3306 by default).
#
#    Example:
#
#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
#    MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
#    start replication for the first time (even unsuccessfully, for example
#    if you mistyped the password in master-password and the slave fails to
#    connect), the slave will create a master.info file, and any later
#    change in this file to the variables' values below will be ignored and
#    overridden by the content of the master.info file, unless you shutdown
#    the slave server, delete master.info and restart the slaver server.
#    For that reason, you may want to leave the lines below untouched
#    (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id       = 2
#
# The replication master for this slave - required
#master-host     =   <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user     =   <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =   <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port     =  <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin

# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 256M
#innodb_additional_mem_pool_size = 20M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 64M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[myisamchk]
key_buffer_size = 128M
sort_buffer_size = 128M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

اینم لاگ:

[Thu Jun 12 11:36:51 2014] [error] [client 5.134.177.32] request failed: error reading the headers
[Thu Jun 12 12:01:21 2014] [error] [client 5.223.58.2] request failed: error reading the headers
[Thu Jun 12 12:10:20 2014] [error] [client 31.47.61.34] request failed: error reading the headers
[Thu Jun 12 12:22:16 2014] [error] [client 151.233.167.207] request failed: error reading the headers
[Thu Jun 12 12:27:21 2014] [error] [client 188.158.252.39] request failed: error reading the headers
[Thu Jun 12 12:27:45 2014] [error] [client 188.158.252.39] request failed: error reading the headers
[Thu Jun 12 12:34:05 2014] [error] [client 151.233.146.220] request failed: error reading the headers
[Thu Jun 12 12:42:37 2014] [notice] caught SIGTERM, shutting down
[Thu Jun 12 12:42:38 2014] [warn] RSA server certificate CommonName (CN) `localhost' does NOT match server name!?
[Thu Jun 12 12:42:38 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Thu Jun 12 12:42:38 2014] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Jun 12 12:42:39 2014] [warn] RSA server certificate CommonName (CN) `localhost' does NOT match server name!?
[Thu Jun 12 12:42:39 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Thu Jun 12 12:42:39 2014] [notice] Apache/2.2.27 (Unix) mod_ssl/2.2.27 OpenSSL/1.0.1e-fips DAV/2 configured -- resuming normal operations
[Thu Jun 12 12:48:57 2014] [notice] caught SIGTERM, shutting down
[Thu Jun 12 12:48:58 2014] [warn] RSA server certificate CommonName (CN) `localhost' does NOT match server name!?
[Thu Jun 12 12:48:58 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Thu Jun 12 12:48:58 2014] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Jun 12 12:48:59 2014] [warn] RSA server certificate CommonName (CN) `localhost' does NOT match server name!?
[Thu Jun 12 12:48:59 2014] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366)
[Thu Jun 12 12:48:59 2014] [notice] Apache/2.2.27 (Unix) mod_ssl/2.2.27 OpenSSL/1.0.1e-fips DAV/2 configured -- resuming normal operations
[Thu Jun 12 13:17:50 2014] [error] [client 2.191.141.23] request failed: error reading the headers
[Thu Jun 12 13:40:39 2014] [error] [client 192.3.92.3] File does not exist: /var/www/html/adspace, referer: http://www.yourlust.com/im/ads_footer.html
[Thu Jun 12 13:40:39 2014] [error] [client 192.3.92.3] File does not exist: /var/www/html/404.shtml, referer: http://www.yourlust.com/im/ads_footer.html

[storage]

محتوا فایل کانفیگ حذف و فقط کد زیر قرار بدهید

[mysqld]
innodb_file_per_table=1
default-storage-engine=MyISAM
local-infile=0
open_files_limit=900000



سپس یکبار ریستارت کنید بعد از 24 ساعت مجدد برنامه پرل داده شده اجرا کنید و مقادیر به فایل کانفیگ اضافه کنید.