feat(hybriddb): add the cache layer

[pretty66]

Hello, I helped you build a hot data caching layer, "Hybriddb" implements ledisdb storage interface.

Introduction to processing logic:

• When reading kv data, first check the memory cache, if it is lost, query the disk data and store it in the memory

• When writing kv data, directly clear the memory cache and wait for the next read data cache to the memory

[gitsrc]

Hello, I helped you build a hot data caching layer, "Hybriddb" implements ledisdb storage interface.

Introduction to processing logic:

• When reading kv data, first check the memory cache, if it is lost, query the disk data and store it in the memory
• When writing kv data, directly clear the memory cache and wait for the next read data cache to the memory

Hello, I helped you build a hot data caching layer, "Hybriddb" implements ledisdb storage interface.

Introduction to processing logic:

• When reading kv data, first check the memory cache, if it is lost, query the disk data and store it in the memory
• When writing kv data, directly clear the memory cache and wait for the next read data cache to the memory

Very beautiful implementation, it is recommended that the maximum value of the cache can be extracted and included in the program parameters

[gitsrc]

thanks 👍 👍