MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
- 17.20.1 Benefits of the InnoDB memcached Plugin
- 17.20.2 InnoDB memcached Architecture
- 17.20.3 Setting Up the InnoDB memcached Plugin
- 17.20.4 InnoDB memcached Multiple get and Range Query Support
- 17.20.5 Security Considerations for the InnoDB memcached Plugin
- 17.20.6 Writing Applications for the InnoDB memcached Plugin
- 17.20.7 The InnoDB memcached Plugin and Replication
- 17.20.8 InnoDB memcached Plugin Internals
- 17.20.9 Troubleshooting the InnoDB memcached Plugin
Important
The InnoDB memcached plugin
was removed in MySQL 8.3.0, and was deprecated in MySQL 8.0.22.
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 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 17.20.1, “Benefits of the InnoDB memcached Plugin”. For an architectural
overview, see Section 17.20.2, “InnoDB memcached Architecture”.