MongoDB gotchas for the unaware user. All of these "gotchas" are in the MongoDB documentation, but are the sorts of things that you might not remember until it's too late. Taking Rai?'s advice early could save you some major headaches later on.Senko Rai? has created a list of tips for MongoDB beginners called
- Use the 64-bit version The 32-bit version is limited to about 2.5GB of data, and you can't switch to the 64-bit version after install without starting all over.
- Have a slave DB on another machine If your MongoDB instance crashes, you'll want to recover it from a slave on another server because the data from the master could be hopelessly corrupted.
- Secure it MongoDB doesn't use any authentication by default. If you don't want the entire world to be able to tamper with your database, you need to setup some security rules.
- Always use getLastError "Unless you need lightning speed, it pays to wait a little to be sure the database is ok with your changes, and that there were no errors modifying the data," Rai? wrote.