Storage

The storage engine is the primary component of MongoDB responsible for managing data. MongoDB provides a variety of storage engines, allowing you to choose one most suited to your application.

The journal is a log that helps the database recover in the event of a hard shutdown. There are several configurable options that allows the journal to strike a balance between performance and reliability that works for your particular use case.

GridFS is a versatile storage system that is suited to handling large files, such as those exceeding the 16 MB document size limit.

• Storage Engines
  • WiredTiger Storage Engine
    • Change Standalone to WiredTiger
    • Change Replica Set to WiredTiger
    • Change Sharded Cluster to WiredTiger
      • Change Config Servers to WiredTiger
  • MMAPv1 Storage Engine
  • In-Memory Storage Engine
• Journaling
  • Manage Journaling
• GridFS
• FAQ: MongoDB Storage

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