将redis配置为缓存

Question

我想将redis纯粹用作缓存。为确保如此，我必须在redis.conf中禁用哪些选项。我读了默认情况下redis持久数据（AOF和rdb文件，也许更多）。即使设置为过期的键也是如此。 是否坚持被设置为过期的数据是矛盾的？

Answer 1

Redis将其所有数据存储在RAM中，但不时将其转储到持久存储（HDD/SDD）。这个过程被称为快照。

你可以在your redis.conf file配置快照的频率（见SNAPSHOTTING部分）：

# save <seconds> <changes> 
# 
# Will save the DB if both the given number of seconds and the given 
# number of write operations against the DB occurred. 
# 
# In the example below the behaviour will be to save: 
# after 900 sec (15 min) if at least 1 key changed 
# after 300 sec (5 min) if at least 10 keys changed 
# after 60 sec if at least 10000 keys changed 
# 
# Note: you can disable saving completely by commenting out all "save" lines. 
# 
# It is also possible to remove all the previously configured save 
# points by adding a save directive with a single empty string argument 
# like in the following example: 
# 
# save "" 

save 900 1 
save 300 10 
save 60 10000 

所以，如果你想完全禁用快照，您应该删除或redis.conf文件发表评论所有save指令。