Mysql集群
1. 在MySQL源代码目录下新建脚本 install.sh,把下面的代码添加到这个脚本中:
#!/bin/bash
############################################
######### MySQL Server Config ##############
############################################
#Determine to install MySQL server
#"0" means do not install server programs
INST_SERVER=1
#MySQL installation path
INST_PATH="/usr/local/mysql"
#Define the ports of MySQL installation, intput strings of
#PORT with whitespace separated.
#e.g. "3306 3307" means install two MySQL servers:
# The first server will be installed to $INST_PATH/1 and listen 3306 port.
# The second server will be installed to $INST_PATH/2 and listen 3307 port.
# ... ...
INST_PORTS="3306"
#The management server information
MGM_HOST="192.168.1.253"
MGM_PORT="2200"
###########################################
######### MySQL Cluster Config ############
###########################################
#Determine to install cluster
#"0" means do not install cluster programs
INST_CLUSTER=1
#Define COMPUTERs in config.ini, intput strings of HostName with
#whitespace separated.
#The Id attribute is auto increment and start with 1.
#e.g. "192.168.1.253 192.168.252" will generate the following code
# [COMPUTER]
# Id=1
# HostName=192.168.1.253
# [COMPUTER]
# Id=2
# HostName=192.168.1.252
COMPUTERS="192.168.1.253 192.168.1.252"
#Define MGMs in config.ini, intput strings of HostName with whitespace separated.
#e.g. "192.168.1.253 192.168.252" will generate the following code
# [MGM]
# HostName=192.168.1.253
# [MGM]
# HostName=192.168.1.252
MGMS="192.168.1.253"
#Define DBs in config.ini, intput ids of ExecuteOnComputer with whitespace separated.
#e.g. "1 2" will generate the following code
# [DB]
# ExecuteOnComputer=1
# [DB]
# ExecuteOnComputer=2
DBS="1"
#Define APIs in config.ini, intput ids of ExecuteOnComputer with whitespace separated.
#e.g. "1 0 1 2" will generate the following code
# [API]
# ExecuteOnComputer=1
# [API]
# [API]
# ExecuteOnComputer=1
# [API]
# ExecuteOnComputer=2
APIS="1 0 2 2"
######################################################################
########## Starting to install programs, do not modify them! #########
######################################################################
echo "Starting to install programs" > install.log
#Find installation path
if [ $# -gt 0 ]
then
INST_PATH="{GetProperty(Content)}"
else
INST_PATH="/usr/local/mysql"
fi
if [ 0 -lt $INST_SERVER ]
then
echo "Now, installing the MySQL servers..."
#Loop to install mysql servers
INSTALLED_SERVER_COUNT=1
for PORT in $INST_PORTS
do
#Define the current mysql server installation path
MYSL_PATH=$INST_PATH/$INSTALLED_SERVER_COUNT
#Configure mysql server
echo "Exec ./configure --prefix=$MYSL_PATH --with-pthread
--with-unix-socket-path=$MYSL_PATH/var/mysql.sock --with-mysqld-user=root
--with-tcp-port=$PORT --with-charset=gbk --with-ndbcluster" >> install.log
./configure --prefix=$MYSL_PATH --with-pthread
--with-unix-socket-path=$MYSL_PATH/var/mysql.sock
--with-mysqld-user=root --with-tcp-port=$PORT
--with-charset=gbk --with-ndbcluster
#Make mysql server
echo "Exec make && make install" >> install.log
make && make install
#Create var directory for mysql data
mkdir -p $MYSL_PATH/var
#Create my.cnf
echo "Create $MYSL_PATH/var/my.cnf" >> install.log
echo "[client]" > $MYSL_PATH/var/my.cnf
echo "port=$PORT" >> $MYSL_PATH/var/my.cnf
echo "socket=$MYSL_PATH/var/mysql.sock" >> $MYSL_PATH/var/my.cnf
echo "" >> $MYSL_PATH/var/my.cnf
echo "[mysqld]" >> $MYSL_PATH/var/my.cnf
echo "ndbcluster" >> $MYSL_PATH/var/my.cnf
echo "ndb_connectstring=host=$MGM_HOST:$MGM_PORT" >> $MYSL_PATH/var/my.cnf
echo "user=root" >> $MYSL_PATH/var/my.cnf
echo "port=$PORT" >> $MYSL_PATH/var/my.cnf
echo "basedir=$MYSL_PATH/" >> $MYSL_PATH/var/my.cnf
echo "datadir=$MYSL_PATH/var/" >> $MYSL_PATH/var/my.cnf
echo "socket=$MYSL_PATH/var/mysql.sock" >> $MYSL_PATH/var/my.cnf
echo "default-character-set=gbk" >> $MYSL_PATH/var/my.cnf
echo "default-storage-engine=INNODB" >> $MYSL_PATH/var/my.cnf
echo "max_connections=500" >> $MYSL_PATH/var/my.cnf
echo "" >> $MYSL_PATH/var/my.cnf
echo "query_cache_size=33M" >> $MYSL_PATH/var/my.cnf
echo "table_cache=1520" >> $MYSL_PATH/var/my.cnf
echo "tmp_table_size=16M" >> $MYSL_PATH/var/my.cnf
echo "thread_cache=38" >> $MYSL_PATH/var/my.cnf
echo "" >> $MYSL_PATH/var/my.cnf
echo "#MyISAM Specific options" >> $MYSL_PATH/var/my.cnf
echo "#skip-myisam" >> $MYSL_PATH/var/my.cnf
echo "" >> $MYSL_PATH/var/my.cnf
echo "#INNODB Specific options" >> $MYSL_PATH/var/my.cnf
echo "#skip-innodb" >> $MYSL_PATH/var/my.cnf
chmod 755 $MYSL_PATH/var/my.cnf
#Install mysql database
echo "Exec $MYSL_PATH/bin/mysql_install_db" >> install.log
$MYSL_PATH/bin/mysql_install_db
#Create mysql control script
if [ -e $MYSL_PATH/share/mysql/mysql.server ]
then
#Use default mysql control script
#Create mysql server start script
echo "Create $MYSL_PATH/start" >> install.log
echo "$MYSL_PATH/share/mysql/mysql.server start" > $MYSL_PATH/start
echo "Chmod 755 $MYSL_PATH/start" >> install.log
chmod 755 $MYSL_PATH/start
#Create mysql server stop script
echo "Create $MYSL_PATH/stop" >> install.log
echo "$MYSL_PATH/share/mysql/mysql.server stop" > $MYSL_PATH/stop
echo "Chmod 755 $MYSL_PATH/stop" >> install.log
chmod 755 $MYSL_PATH/stop
#Create mysql server restart script
echo "Create $MYSL_PATH/restart" >> install.log
echo "$MYSL_PATH/share/mysql/mysql.server restart" > $MYSL_PATH/restart
echo "Chmod 755 $MYSL_PATH/restart" >> install.log
chmod 755 $MYSL_PATH/restart
else
#Use custom mysql control script
#Create mysql server start script
echo "Create $MYSL_PATH/start" >> install.log
echo "$MYSL_PATH/libexec/mysqld &" > $MYSL_PATH/start
echo "Chmod 755 $MYSL_PATH/start" >> install.log
chmod 755 $MYSL_PATH/start
#Create mysql server stop script
echo "Create $MYSL_PATH/stop" >> install.log
echo "$MYSL_PATH/bin/mysqladmin -u root -p shutdown" > $MYSL_PATH/stop
echo "Chmod 755 $MYSL_PATH/stop" >> install.log
chmod 755 $MYSL_PATH/stop
#Create mysql server restart script
echo "Create $MYSL_PATH/restart" >> install.log
echo "$MYSL_PATH/bin/mysqladmin -u root -p shutdown" > $MYSL_PATH/restart
echo "$MYSL_PATH/libexec/mysqld &" >> $MYSL_PATH/restart
echo "Chmod 755 $MYSL_PATH/restart" >> install.log
chmod 755 $MYSL_PATH/restart
fi
#Clean mysql server to get ready for the next installation
echo "Exec make clean" >> install.log
make clean
INSTALLED_SERVER_COUNT=$(($INSTALLED_SERVER_COUNT + 1))
done
echo "Configurations! MySQL servers has been installed successfully."
echo ""
echo "1. To start mysql server, use the following command:"

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SublimeText3 Chinese version
Chinese version, very easy to use