pikiwidb自身配置的缓存失效

[fdl66]

Is this a regression?

Yes

Description

下面配置文件里面配置的缓存， 在4.0.0版本是生效的， 在4.0.2-alpha版本中，失效了。
使用info cache命令查看缓存信息，以及查看进程实际的内存占用（只有table-reader、memtable的占用），都没有生效。

###################
## Cache Settings
###################
# the number of caches for every db
cache-num : 16

# cache-model 0:cache_none 1:cache_read
cache-model : 1
# cache-type: string, set, zset, list, hash, bit
cache-type : string, set, zset, list, hash, bit

# Maximum number of keys in the zset redis cache
# On the disk DB, a zset field may have many fields. In the memory cache, we limit the maximum
# number of keys that can exist in a zset,  which is zset-zset-cache-field-num-per-key, with a
# default value of 512.
zset-cache-field-num-per-key : 512

# If the number of elements in a zset in the DB exceeds zset-cache-field-num-per-key,
# we determine whether to cache the first 512[zset-cache-field-num-per-key] elements
# or the last 512[zset-cache-field-num-per-key] elements in the zset based on zset-cache-start-direction.
#
# If zset-cache-start-direction is 0, cache the first 512[zset-cache-field-num-per-key] elements from the header
# If zset-cache-start-direction is -1, cache the last 512[zset-cache-field-num-per-key] elements
zset-cache-start-direction : 0


# the cache maxmemory of every db, configuration 10G
cache-maxmemory : 10737418240

# cache-maxmemory-policy
# 0: volatile-lru -> Evict using approximated LRU among the keys with an expire set.
# 1: allkeys-lru -> Evict any key using approximated LRU.
# 2: volatile-lfu -> Evict using approximated LFU among the keys with an expire set.
# 3: allkeys-lfu -> Evict any key using approximated LFU.
# 4: volatile-random -> Remove a random key among the ones with an expire set.
# 5: allkeys-random -> Remove a random key, any key.
# 6: volatile-ttl -> Remove the key with the nearest expire time (minor TTL)
# 7: noeviction -> Don't evict anything, just return an error on write operations.
cache-maxmemory-policy : 1

# cache-maxmemory-samples
cache-maxmemory-samples : 5

# cache-lfu-decay-time
cache-lfu-decay-time : 1

Please provide a link to a minimal reproduction of the bug

No response

Screenshots or videos

No response

Please provide the version you discovered this bug in (check about page for version information)

验证版本： 4.0.2-alpha

Anything else?

No response

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Title: = The cache configured by pikiwidb itself is invalid

[Mixficsol]

info cache 命令可以提供一下吗，看下具体的情况，需要一个复现步骤

[Issues-translate-bot]

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Can the info cache command be provided? To see the specific situation, a reproduction step is required