## 15.20 InnoDB memcached Plugin

[15.20.1 Benefits of the InnoDB memcached Plugin](innodb-memcached-benefits.html)
[15.20.2 InnoDB memcached Architecture](innodb-memcached-intro.html)
[15.20.3 Setting Up the InnoDB memcached Plugin](innodb-memcached-setup.html)
[15.20.4 InnoDB memcached Multiple get and Range Query Support](innodb-memcached-multiple-get-range-query.html)
[15.20.5 Security Considerations for the InnoDB memcached Plugin](innodb-memcached-security.html)
[15.20.6 Writing Applications for the InnoDB memcached Plugin](innodb-memcached-developing.html)
[15.20.7 The InnoDB memcached Plugin and Replication](innodb-memcached-replication.html)
[15.20.8 InnoDB memcached Plugin Internals](innodb-memcached-internals.html)
[15.20.9 Troubleshooting the InnoDB memcached Plugin](innodb-memcached-troubleshoot.html)

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Note

 The `InnoDB` **memcached** plugin is deprecated as of MySQL 8.0.22; expect support for it to be removed in a future version of MySQL.

 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”. Instead of formulating queries in SQL, you can use simple `get`, `set`, and `incr` operations that avoid the performance overhead associated with SQL parsing and constructing a query optimization plan. You can also access the same `InnoDB` tables through SQL for convenience, complex queries, bulk operations, and other strengths of traditional database software.

 This “NoSQL-style” interface uses the **memcached** API to speed up database operations, letting `InnoDB` handle memory caching using its [buffer pool](glossary.html#glos_buffer_pool) mechanism. Data modified through **memcached** operations such as `add`, `set`, and `incr` are stored to disk, in `InnoDB` tables. The combination of **memcached** simplicity and `InnoDB` reliability and consistency provides users with the best of both worlds, as explained in [Section 15.20.1, “Benefits of the InnoDB memcached Plugin”](innodb-memcached-benefits.html). For an architectural overview, see [Section 15.20.2, “InnoDB memcached Architecture”](innodb-memcached-intro.html).

