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redis的備份和還原，借助了第三方的工具，redis-dump

1、安裝redis-dump

代碼如下:

[root@localhost tank]# yum install ruby rubygems ruby-devel //安裝rubygems 以及相關包

[root@localhost tank]# gem sources -a //源，加入淘寶，外面的源不能訪問

added to sources

[root@localhost tank]# gem install redis-dump -V //安裝redis-dump

2、redis-dump導出數據

代碼如下:

[root@localhost tank]# telnet 127.0.0.1 6379 //telnet到redis

Trying 127.0.0.1...

Connected to 127.0.0.1.

Escape character is '^]'.

set test 11 //設置一個值

+OK

get test //取值

$2

11

[root@localhost tank]# redis-dump -u 127.0.0.1:6379 >test.json //導出數據

3、redis-load還原數據

代碼如下:

[root@localhost tank]# telnet 127.0.0.1 6379 //telnet到redis

Trying 127.0.0.1...

Connected to 127.0.0.1.

Escape character is '^]'.

flushall //請空所有數據

+OK

keys * //查看已清空

*0

[root@localhost tank]# < test.json redis-load //導入數據

[root@localhost tank]# telnet 127.0.0.1 6379

Trying 127.0.0.1...

Connected to 127.0.0.1.

Escape character is '^]'.

keys * //已導入成功

*1

$4

test

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