As a database, MongoDB is built with developers in mind, and it was developed during the web era, so it does not require as much operational overhead as traditional RDBMS. That being said, there are some best practices that need to be followed to be proactive and achieve high availability goals.
In order of importance, the best practices are as follows:
- Turn journaling on by default: Journaling uses a write-ahead log to be able to recover if a MongoDB server gets shut down abruptly. With the MMAPv1 storage engine, journaling should always be on. With the WiredTiger storage engine, journaling and checkpointing are used together, to ensure data durability. In any case, it is a good practice to use journaling and ...
