Ubuntu
installing-perconaXTRADB Cluster 5.6
in-ubuntu-13-10-wheezy
First of all, I would recommend login as root so that you don’t have tosudo every time you hit the command and give the root password.
1. $ su -
$ su -
Now you should be logged in as root. Mine now is
1. root@rajug:~#
root@rajug:~#
Step 1:
First of all lets remove everything that is related to MySQL from the machine.
1. apt-get remove mysql*
2. apt-get purge mysql*
3. apt-get autoremove
apt-get remove mysql*
apt-get purge mysql*
apt-get autoremeve
Step 2: Adding the key
Now lets add the key that is provided by Percona, we have to add this to beallowed to install from Percona server.
1. apt-key adv --keyserver keys.gnupg.net --recv-keys 1C4CBDCDCD2EFD2A
apt-key adv --keyserverkeys.gnupg.net --recv-keys 1C4CBDCDCD2EFD2A
Step 3: Adding the repository
Lets add the Percona repository in the sources list in the machine/Ubuntu.
1. vim /etc/apt/sources.list
vim /etc/apt/sources.list
Add the following two lines in the source list:
http://repo.percona.com/apt/dists/
1. deb http://repo.percona.com/apt wheezy main
2. deb-src http://repo.percona.com/apt wheezy main
deb http://repo.percona.com/aptsaucy main
deb-srchttp://repo.percona.com/apt saucy main
Step 4: Apt-Pinning the packages
In some cases you might need to “pin” the selected packages to avoid theupgrades from the distribution repositories. You’ll need to make a new file/etc/apt/preferences.d/00percona.pref and add the following lines in it:
1. vim /etc/apt/preferences.d/00percona.pref
vim/etc/apt/preferences.d/00percona.pref
Add the following line:
1. Package: *
2. Pin: release o=Percona Development Team
3. Pin-Priority: 1001
Package: *
Pin: release o=PerconaDevelopment Team
Pin-Priority: 1001
Step 5: Update
1. $apt-get update
$apt-get update
Step 6: Install Percona Server and Client
1. $ sudo apt-get installpercona-xtradb-cluster-56
$ apt-get installpercona-server-server-5.6 percona-server-client-5.6
Step 7: Install dependencies
If there are any dependencies left, then lets install them
1. $ apt-get install -f
$ apt-get install -f
Step 8: Testing
To make sure if Percona Server is installed in your machine with MySQL simplytry:
1. $ mysql -u root -p
$ mysql -u root -p
And it showed me :
root@rajug:~# mysql -u root -p
1. Enter password:
2. Welcome to the MySQL monitor. Commands end with ; or /g.
3. Your MySQL connection id is 11
4. Server version: 5.6.15-63.0 Percona Server (GPL), Release 63.0
5.
6. Copyright (c) 2009-2013 Percona LLC and/or its affiliates
7. Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
8.
9. Oracle is a registered trademark of Oracle Corporation and/or its
10.affiliates. Other names may be trademarks of their respective
11.owners.
12.
13.Type 'help;' or '/h' for help. Type '/c' to clear the current input statement.
14.
mysql>
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


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