Prevents a write operation that affects multiple documents from yielding to other reads or writes once the first document is written. By using the $isolated option, you can ensure that no client sees the changes until the operation completes or errors out. Mongo Docs
Prevents a write operation that affects multiple documents from yielding to other reads or writes once the first document is written. By using the $isolated option, you can ensure that no client sees the changes until the operation completes or errors out. Mongo Docs