AgileApps Support Wiki Pre Release

Configuring the MySQL Server

From AgileApps Support Wiki
Revision as of 22:17, 18 June 2015 by imported>Aeric (→‎MySQL Settings)

These instructions apply to the version of MySQL specified in the Software Requirements.

Terminology:

MySQL Server
The database server, which has MySQL Server software installed, configured and running
MySQL Client
Any other computer which connects to the database server and has the MySQL Client software installed, configured and running
  • The client connects to the database server for purposes of accessing data
  • For example, a webserver may be such a client
Configuration file
my.cnf, a MySQL configuration file that may be edited and used in the MySQL client or MySQL Server installation
MySQL Settings
Storage Engine
default-storage-engine = innodb
Server System Variables Configuration
It has been observed that READ_UNCOMMITTED does not work well with Row-Based Replication. Use one of the following configurations:
a) Either STATEMENT-BASED or MIXED replication, with the Transaction Isolation level dictated by business needs.
b) ROW-BASED replication with transaction_isolation = READ-COMMITTED
User Configuration
  • Create a user account with password in MySQL to be used by the Application Server
  • The user account should have all MySQL privileges enabled on all databases
  • The default root account that is created during the installation of MySQL can be used
sql-mode Configuration
  • For a First-Time installation:
  • Add the following code to the my.cnf file located in the MySQL Client:
sql-mode="PIPES_AS_CONCAT,ANSI_QUOTES"
  • Add the following code to the my.cnf file located in the MySQL Server:
sql-mode="PIPES_AS_CONCAT,ANSI_QUOTES"
MySQL Configuration for UTF-8 Unicode character set
  • Add the following code to the my.cnf file, located in the MySQL Client:
default-character-set=utf8
  • Add the following code to the my.cnf file, located in MySQL Server:
character-set-server=utf8
collation-server=utf8_general_ci
The character set defines how records can be alphanumerically ordered (or grouped, sorted, filtered, indexed). Because the list of supported languages is determined by the character set available at the server level, the UTF-8 Unicode character set configuration is required as part of MySQL configuration.
Learn more:
Specify character settings at MySQL configuration time
http://dev.mysql.com/doc/refman/5.5/en/charset-applications.html
max_allowed_packet Configuration
  • Add the following variable to my.cnf or my.ini
max_allowed_packet = 8M.
Learn more:
http://dev.mysql.com/doc/refman/5.5/en/charset-applications.html
  • Restart the MySQL server to implement these changes
Populate the Timezone Tables

Run the following program to initialize the MySQL timezone tables:

mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql
where /usr/share/zoneinfo is the standard Linux location for the time zone files. (Your system may differ.)
Learn more: https://dev.mysql.com/doc/refman/5.5/en/mysql-tzinfo-to-sql.html