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https://dev.mysql.com/doc/refman/8.0/en/replication-multi-source-provision-replica.html
In a multi-source replication topology, cloning or copying of the data directory cannot be used to provision the replica with data from all of the sources, and you might also want to replicate only specific databases from each source. If the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-setup-replicas.html
Choose one of the following: If you do not have a snapshot of a database to import, see Section 19.1.2.6.1, “Setting Up Replication with New Source and Replicas”. If you have a snapshot of a database to import, see Section 19.1.2.6.2, “Setting ...Before you proceed, ensure that you have: Configured the source with the necessary configuration ...
https://dev.mysql.com/doc/refman/8.0/en/system-schema.html
A broad categorization is that the mysql schema contains data dictionary tables that store database object metadata, and system tables used for other operational purposes. Previously, these tables were created in individual tablespace files in the ...It contains tables that store information required by the MySQL server as it ...
https://dev.mysql.com/doc/refman/8.0/en/testing-server.html
Use mysqlshow to see what databases exist: $> bin/mysqlshow +--------------------+ | Databases | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ The list of installed databases may vary, ... After the data directory is initialized and you have started the server, perform some simple tests to make sure that it works ...
https://dev.mysql.com/doc/refman/8.0/en/workbench.html
MySQL Workbench provides a graphical tool for working with MySQL servers and databases. MySQL Workbench provides five main areas of functionality: SQL Development: Enables you to create and manage connections to database servers. As well as ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-recovery.html
In some cases of database corruption, it is enough to dump, drop, and re-create one or a few corrupt tables. Recovery from Data Corruption or Disk Failure If your database becomes corrupted or disk failure occurs, you must perform the recovery using ...To achieve point-in-time recovery after restoring a backup, you can apply changes from the binary log that occurred after the backup was ...
https://dev.mysql.com/doc/refman/8.0/en/manual-info.html
This is the Reference Manual for the MySQL Database System, version 8.0, through release 8.0.43. Because this manual serves as a reference, it does not provide general instruction on SQL or relational database concepts. The MySQL Database Software ...Differences between minor versions of MySQL 8.0 are noted in the present text with reference to release numbers ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-table-characteristics.html
The name of the performance_schema database is lowercase, as are the names of tables within it. Many tables in the performance_schema database are read only and cannot be modified: mysql> TRUNCATE TABLE performance_schema.setup_instruments; ERROR ...Some of the setup tables have columns that can be modified to affect Performance Schema operation; some also permit rows to be inserted or ...
https://dev.mysql.com/doc/refman/8.0/en/audit-log-reference.html
Audit Log Tables MySQL Enterprise Audit uses tables in the mysql system database for persistent storage of filter and user account data. The tables can be accessed only by users who have privileges for that database. To use a different database, set ...Unless those objects are installed, the audit_log plugin operates in legacy mode (deprecated in MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-consistent-read.html
A consistent read means that InnoDB uses multi-versioning to present to a query a snapshot of the database at a point in time. If other sessions simultaneously update the same table, the anomaly means that you might see the table in a state that ...