Replicate Multiple MongoDB Accounts

CData Sync is a stand-alone application that provides solutions for a variety of replication scenarios such as replicating sandbox and production instances into your database. CData Sync includes a web-based interface that makes it easy to manage multiple MongoDB connections. In this article we show how to use the web app to replicate multiple MongoDB accounts to a single database.

Getting Started

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Configure the Replication Destination

Using CData Sync, you can replicate MongoDB data to any number of databases, both cloud-based and on-premises. To add a replication destination, navigate to the Connections tab.

1. Click Add Connection.
2. Select a destination and enter the necessary connection properties. In this article, we use SQLite.
3. Enter the necessary connection properties. To replicate MongoDB to a SQLite database, enter a file path in the Data Source box.
4. Click Test Connection to ensure that the connection is configured properly.
5. Click Save Changes.

Configure MongoDB Connections

You can configure connections to MongoDB from the Connections tab. To add a connection to one of your MongoDB accounts, navigate to the Connections tab. For each MongoDB account you wish to replicate, do the following:

1. Click Add Connection.
2. Select a source (MongoDB).
3. Configure the connection properties.
   
   

   Set the Server, Database, User, and Password connection properties to connect to MongoDB. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. Schemas are defined in .rsd files, which have a simple format. You can also execute free-form queries that are not tied to the schema.

4. Click Connect to ensure that the connection is configured properly.
5. Click Save Changes.

Configure Queries for Each MongoDB Instance

CData Sync enables you to control replication with a point-and-click interface and with SQL queries. To configure a replication, navigate to the Jobs tab and click Add Job. Select the Source and Destination for your replication.

Replicate Entire Tables

To replicate an entire table, click Add Tables in the Tables section, choose the table(s) you wish to replicate, and click Add Selected Tables.

Customize Your Replication

The statement below caches and incrementally updates a table of MongoDB data:

You can specify a file containing the replication queries you want to use to update a particular database. Separate replication statements with semicolons. The following options are useful if you are replicating multiple MongoDB accounts into the same database:

• Use a different table prefix in the REPLICATE SELECT statement:

  REPLICATE PROD_restaurants SELECT * FROM restaurants;

• Alternatively, use a different schema:

  REPLICATE PROD.restaurants SELECT * FROM restaurants;

Schedule Your Replication

In the Schedule section, you can schedule a job to run automatically, configuring the job to run after specified intervals ranging from once every 10 minutes to once every month.

Once you have configured the replication job, click Save Changes. You can configure any number of jobs to manage the replication of the data from your different MongoDB accounts.