node.js - 怎么查看mongo锁粒度呢

Question

怎么查看自己的mongodb的锁粒度呢？ mongodb有多种级别的锁粒度，是需要自己设置吗？

Answer 1

No need, the system automatically controls the use of the most efficient and reasonable lock.
However, the MMAPv1 engine only supports collection-level locks, and WT supports document-level locks.