Tag: memcached
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memcached is a general-purpose distributed memory caching system that was originally developed by Danga Interactive for LiveJournal, but is now used by many other sites. It is often used to speed up dynamic database-driven websites by caching data and objects in memory to reduce the amount the database needs to be read. Memcached is open source and released under a BSD license. It uses libevent.
Memcached lacks authentication and security features, meaning it should only be used on servers with a firewall set up appropriately. By default, memcached uses the port 11211.
Memcached's APIs provide a giant hash table distributed across multiple machines. When the table is full, subsequent inserts cause older data to be purged in least recently used (LRU) order. Applications using memcached typically layer memcached requests and additions into code before falling back on a slower backing store, such as a database.
The system is used by several very large sites. Some well-known websites that use memcached are:
Memcached lacks authentication and security features, meaning it should only be used on servers with a firewall set up appropriately. By default, memcached uses the port 11211.
Memcached's APIs provide a giant hash table distributed across multiple machines. When the table is full, subsequent inserts cause older data to be purged in least recently used (LRU) order. Applications using memcached typically layer memcached requests and additions into code before falling back on a slower backing store, such as a database.
The system is used by several very large sites. Some well-known websites that use memcached are:
From en.wikipedia.org/wiki/Memcached
Let's say your site is becoming a big success and as a result it's becoming slower and slower. There are several things you do without buying additional hardware.
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- Jul 15
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