Updates From My Change Stream Are Missing

Issue

Updates from my change stream are missing.

Environment

Connector: MongoDB

Resolution

If you haven't received any errors, you can resolve this issue by appending either of the following queries to your MongoDB connection string:

• readPreference=primary
• readPreference=primaryPreferred

See MongoDB's Read Preference Modes documentation for more information.

If you receive related errors or the issue persists, contact Fivetran support.

Cause

This issue may occur if your MongoDB cluster experiences issues while replicating data to your replica set secondary.