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https://dev.mysql.com/doc/refman/8.0/en/mysql-innodb-replicaset-introduction.html
An InnoDB ReplicaSet consists of at least two MySQL Server instances, and it provides all of the MySQL Replication features you are familiar with, such as read scale-out and data security. InnoDB ReplicaSet uses the following MySQL technologies: ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-multi-versioning.html
Internally, InnoDB adds three fields to each row stored in the database: A 6-byte DB_TRX_ID field indicates the transaction identifier for the last transaction that inserted or updated the row. Update undo logs are used also in consistent reads, but ...InnoDB uses the information in the rollback segment to perform the undo operations needed in a transaction ...It keeps ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-programs-ndb-import.html
db_name is the name of the database where the table into which to import the data is found; file_name is the name of the CSV file from which to read the data; this must include the path to this file if it is not in the current directory. The name of ... ndb_import imports CSV-formatted data, such as that produced by mysqldump --tab, directly into NDB using the NDB ...ndb_import ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached.html
The InnoDB memcached plugin (daemon_memcached) provides an integrated memcached daemon that automatically stores and retrieves data from InnoDB tables, turning the MySQL server into a fast “key-value store”. You can also access the same InnoDB ... Important The InnoDB memcached plugin was removed in MySQL 8.3.0, and was deprecated in MySQL ...Instead of formulating queries in SQL, you can use simple get, set, and incr operations that ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-buffer-pool-optimization.html
InnoDB maintains a storage area called the buffer pool for caching data and indexes in memory. Knowing how the InnoDB buffer pool works, and taking advantage of it to keep frequently accessed data in memory, is an important aspect of MySQL tuning.
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-developing.html
The data stored through the daemon_memcached plugin goes into VARCHAR, TEXT, or BLOB columns, and must be converted to do numeric operations. Typically, writing an application for the InnoDB memcached plugin involves some degree of rewriting or ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-and-mysql-replication.html
For example, you can replicate modifications to an InnoDB table on the source to a MyISAM table on the replica. MySQL replication is based on the binary log where MySQL writes SQL statements that modify data. Cascading actions for InnoDB tables on ... It is possible to use replication in a way where the storage engine on the replica is not the same as the storage engine on the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-memcached-porting-memcached.html
This is because InnoDB performs best for large-scale insertions if primary key values are added in sorted order (as they are with auto-increment values). If you store several different classes of information using memcached, consider setting up a ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-configuring-io-capacity.html
You can set the innodb_io_capacity value in the MySQL option file (my.cnf or my.ini) or modify it at runtime using a SET GLOBAL statement, which requires privileges sufficient to set global system variables. You can set the innodb_flush_sync value ... The InnoDB master thread and other threads perform various tasks in the background, most of which are I/O related, such as flushing dirty pages from the buffer pool and writing changes from the change buffer to the appropriate secondary ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-analyze-table-complexity.html
ANALYZE TABLE complexity for InnoDB tables is dependent on: The number of pages sampled, as defined by innodb_stats_persistent_sample_pages. Using these parameters, an approximate formula for estimating ANALYZE TABLE complexity would be: The value ...The number of indexed columns in a table The number of ...For more information, see Section 17.8.10.1, ...