Memcachedのソースを表示

[[Category:データベース管理システム]]
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{{Related|Redis}}
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From [[Wikipedia:memcached]]:

Memcached (pronunciation: mem-cashed, mem-cash-dee) is a general-purpose distributed memory caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be read.

The system uses a client–server architecture. The servers maintain a key–value associative array; the clients populate this array and query it by key. Keys are up to 250 bytes long and values can be at most 1 megabyte in size.

Clients use client-side libraries to contact the servers which, by default, expose their service at port 11211. Both TCP and UDP are supported. Each client knows all servers; the servers do not communicate with each other. If a client wishes to set or read the value corresponding to a certain key, the client's library first computes a hash of the key to determine which server to use. This gives a simple form of sharding and scalable shared-nothing architecture across the servers.

== インストール ==

{{pkg|memcached}} パッケージを[[インストール]]します。

== 設定 ==

Since 1.5.6 memcached defaults to listening only on TCP. {{ic|<nowiki>-l</nowiki>}} allows you to bind to specific interfaces or IP addresses
By default, memcached listens for connections only on local network interfaces. It may be preferred to change the {{ic|<nowiki>-l</nowiki>}} option to allow listening on external addresses instead. See {{man|1|memcached}}.

{{ic|memcached.service}} を[[編集]]して、パラメータを変更します。


{{ic|memcached.service}} を[[開始]]/[[有効化]]します。

== クライアント側ソフトウェア ==

* C/C++: {{Pkg|libmemcached-awesome}}
* Python: {{Pkg|python-binary-memcached}}, {{Pkg|python-memcached}}, {{Pkg|python-pylibmc}}
* Perl: {{Pkg|perl-cache-memcached}}
* Gambas: {{Pkg|gambas3-gb-memcached}}

== See also ==

* [https://unix.stackexchange.com/questions/176916/where-is-the-memcached-configuration-file-in-archlinux unix.stackexchange.com]
* [https://github.com/memcached/memcached/wiki/ConfiguringServer Github wiki Configuring Server]