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Limits & performance notes

Key limits​

  • Document size: encrypted JSON must be ≤ ~5MB.
  • Reserved keys: document _id cannot start with \u0000__meta__:.

Performance tips​

  • Prefer insertMany() over many insertOne() calls.
  • Create indexes for fields you filter on frequently (db.createIndex(...)).
  • Use find({ ... }, { limit, offset }) for paging.
  • Run compaction periodically for long-lived workloads.

Concurrency model​

Each collection serializes its operations through an internal queue to keep ordering consistent.

For multi-process scenarios, use manager IPC mode (see IPC docs) rather than pointing multiple writers directly at the same root directory.