Key-value database redis: 1. Installation and initial knowledge

Redis is a high-performance Key-value database. Because its read/write operations are performed in the memory, it can use up to 0.11 million set times per second and get more than 80 thousand times per second.

The installation process is listed below:

 

Installed on Ubuntu 10.4 desktop edition (although the official documentation also says you can add cywin to Windows for installation, but it has limited capabilities and has never been installed)

1. Get the installation package: the http://code.google.com/p/redis/downloads/list gets the installation package and uses the redis-1.02.tar.gz installation package,

 

2. Open "ApplicationProgram"->" Attachment "->" terminal ",

 

3. Enter the following command:

$ CD your redis directory
$ Tar xvzf redis- 1.02 .Tar.gz
$ CD redis- 1.02
$ Make

4. Test whether redis is successful. Run the following command to start the redis service.

$./Redis-Server

5. After the startup is successful, you can add and obtain data in the database. Example:

$./Redis-cli set mykey somevalue
OK
$./Redis-cli get Myke
Somevalue

You can also add and retrieve lists. For example:

Code $./Redis-cli lpush mylist firstvalue
OK
$./Redis-cli lpush mylist secondvalue
OK
$./Redis-cli lpush mylist thirdvalue
OK
$./Redis-cli lrange mylist 0 - 1
1 . Thirdvalue
2 . Secondvalue
3 . firstvalue

$. /redis-cli RPP mylist

firestvalue

$. /redis-cli lrange mylist 0 - 1
1 . thirdvlaue
2 . secondvalue