RLock or WLock when we do a put/deletion?

[El-even-11]

In docs, it says that we should take a write lock when we do a put/deletion:

extra-tasks

But in reference solution, we take a read lock actually:

line109 and line119

It seems that RLock is enough, because MemTable is concurrent safe?

[skyzh]

You are correct. The lock is actually used to protect lost of memtables instead of the memtable itself.

[skyzh]

Lost -> list

[skyzh]

Will be fixed shortly…