MongoDB 并发

Question

我对 MongoDB 的读锁定有点困惑。单个集合可以支持多少个并发读取操作？

Answer 1

如 tk 给出的链接中所写:http://www.mongodb.org/pages/viewpage.action?pageId=7209296

Read/Write Lock

mongod uses a read/write lock for many operations. Any number of concurrent read operations are allowed, but typically only one write operation (although some write operations yield and in the future more concurrency will be added). The write lock acquisition is greedy: a pending write lock acquisition will prevent further read lock acquisitions until fulfilled.

典型的读/写锁