将redis配置为缓存

Question

我想将redis纯粹用作缓存。我必须在redis.conf中禁用哪些选项以确保这一点。我读到默认情况下redis持久化数据（AOF和rdb文件，或许更多）。对于即将设置为过期的键也是如此。 坚持设置为过期的数据是不是自相矛盾？

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）。此过程称为快照。

您可以在your redis.conf file中配置快照频率（请参阅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

因此，如果要完全禁用快照，则应删除或评论save文件中的所有redis.conf指令。