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Can a replication be used on an InnoDB table?
MySQL replication works for InnoDB tables as it does for MyISAM tables. It is also possible to use replication in a way where the storage engine on the replica is not the same as the original storage engine on the source. For example, you can replicate modifications to an InnoDB table on the source to a MyISAM table on the replica.
How does InnoDB create table in file per table?
InnoDB creates tables in file-per-table tablespaces by default. This behavior is controlled by the innodb_file_per_table variable. Disabling innodb_file_per_table causes InnoDB to create tables in the system tablespace.
What is a file per table in MySQL?
MySQL 8.0 Reference Manual / / A file-per-table tablespace contains data and indexes for a single InnoDB table, and is stored on the file system in a single data file. File-per-table tablespace characteristics are described under the following topics in this section:
How to restore third instance of MySQL as slave?
Create a new database and start the third instance of MySQL with the enabled option innodb_file_per_table. Restore the dump by feeding it into the third instance of MySQL. Configure the third instance as slave and run the replication.
When to use cascading actions in InnoDB?
Cascading actions for InnoDB tables on the source are executed on the replica only if the tables sharing the foreign key relation use InnoDB on both the source and replica. This is true whether you are using statement-based or row-based replication.
Can a replication be made without taking down the source?
To make a new replica without taking down the source or an existing replica, use the MySQL Enterprise Backup product. Transactions that fail on the source do not affect replication. MySQL replication is based on the binary log where MySQL writes SQL statements that modify data.
Which is the default storage engine for replication?
Suppose that you have started replication, and then create two tables on the source, where InnoDB is defined as the default storage engine, using the following CREATE TABLE statements:
How does replication work in a MySQL server?
Replication is performed from one MySQL Server to another; the master makes the changes available and then one or more other Servers pick up those changes and apply them to their own databases.
What kind of storage engine does MyISAM use?
If the replica has MyISAM defined as the default storage engine, the same tables are created on the replica, but they use the MyISAM storage engine, and the FOREIGN KEY option is ignored. Now we insert some rows into the tables on the source: