Difference between revisions of "CLI - Database"

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=== Connect to Database(MariaDB) ===
 
=== Connect to Database(MariaDB) ===
 
You can access a database directly if necessary by the <code>mysql</code> command.
 
You can access a database directly if necessary by the <code>mysql</code> command.
If you want to access a database using "root", you must request an One Time Password (OTP) at http://issue.basein.net.
+
If you want to access a database using "root", you must request an One Time Password (OTP)<ref>http://issue.basein.net</ref>.

Revision as of 13:42, 20 April 2021

Database Connection Properties

The imRAD use the MariaDB server[1]. If you run the show system mariadb command, it shows the version of the Database. All Database Connection Properties are securely encrypted. If you want to see properties as plaintext, use the show dci command.
The imRAD consists of three types of Database Connection Properties.

ID Name Description
0 MainDB It is the properties for imRAD main database. If there are two systems for the purpose of the System Failover, one of them is the main system. In other words, an active system is the main system and it has the main database.
2 LocalDB It is the properties for local database.
3 PeerDB If you configure the System Failover, these properties are written. If not, no properties for the type 3 exist.

Note that the leading five characters of the password are marked to * for the purpose of security.

LYSH@MyHostName# show dci 0
  Host:127.0.0.1
  Port:6710
  User-id:lyon
  User-Password:*****y@nu24


Configuring Database Connection Properties

You can configure the host of Database Connection Properties. However, you don't need to configure because If you configure the System Failover, the properties for other types are set automatically. Therefore, If there's no problem, DO NOT configure the Database Connection Properties.

LYSH@MyHostName# configure	
configure# dci create 2 127.0.0.1
configure# exit
LYSH@MyHostName# show dci 2 


Configuring Database backup

You can configure to have the system can backup the database. Note that the imRAD is already enabled to backup the database. The default configuration is

  • db_backup_interval=1
  • db_backup_hour=3
  • max_db_backup_file=5

The above configurations mean that the system backup the database at 3 o'clock every 1 day and remain only a recent 5 backup files. In other words, if there are more than 5 backup files after backup, the oldest one is removing.

LYSH@MyHostName# show system backup		// view the current database backup configuration

configure# dci create 2 127.0.0.1
configure# exit
LYSH@MyHostName# show dci 2 

Connect to Database(MariaDB)

You can access a database directly if necessary by the mysql command. If you want to access a database using "root", you must request an One Time Password (OTP)[2].