fjall: key value separation

[iwanbk]

Fjall supports separation of data between the key and the value

described at https://fjall-rs.github.io/post/announcing-fjall-2/

• minimum length of data to use this feature, the default is 1KB
• set GC configs
• run GC task

[iwanbk]

It is intended for the large value on SSD

https://fjall-rs.github.io/post/announcing-fjall-2/

Key-value separation is intended for large value use cases on SSDs, and allows for adjustable online garbage collection.

So, we will do it as part of #10, which enable inlined data on metadata

[iwanbk]

So, we will do it as part of #10, which enable inlined data on metadata

After reading more, it turns out that enabling a key-value separation is not simple.
There are things to do:

• minimum length of data to use this feature, the default is 1KB
• set GC configs
• run GC task

So, i reopen this issue