如何在Redis中加强used_memory？

Question

我有一个带有maxmemory_human 6.05 G和used_memory_human的Redis集群：4.62M

我想用dump数据加强这个used_memory_human，所以我会有2G的used_memory_human

我怎么能这样做？

Answer 1

有一个内置的调试命令。

debug populate 2000000 testkey 1000

这将创建200万个1kb字符串密钥。

> debug populate 2000000 testkey 1000
OK
(2.52s)
> scan 0
1) "65536"
2)  1) "testkey:1637732"
    2) "testkey:510112"
    3) "testkey:1313139"
    4) "testkey:34729"
    5) "testkey:734989"
    6) "testkey:996052"
    7) "testkey:223126"
    8) "testkey:1578003"
    9) "testkey:1335698"
   10) "testkey:1151100"
> info memory
# Memory
used_memory:2185489192
used_memory_human:2.04G
used_memory_rss:2247540736
used_memory_rss_human:2.09G
used_memory_peak:2185571088
used_memory_peak_human:2.04G

Answer 2

填充

eval "for i=0,(1024*1024*20) do redis.call('set','testData:'..i,'1234567890') end" 0

  

used_memory_human：1.81克

清洁

eval "for i=0,(1024*1024*20) do redis.call('del','testData:'..i) end" 0

  

used_memory_human：574.41K