Automated Continuous Databricks Replication to MongoDB

Always-on applications rely on automatic failover capabilities and real-time data access. CData Sync integrates live Databricks data into your MongoDB instance, allowing you to consolidate all of your data into a single location for archiving, reporting, analytics, machine learning, artificial intelligence and more.

Getting Started

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Configure MongoDB as a Replication Destination

Using CData Sync, you can replicate Databricks data to MongoDB. To add a replication destination, navigate to the Connections tab.

1. Click Add Connection.
2. Select MongoDB as a destination.
3. Enter the necessary connection properties. To connect to MongoDB, set the following:
   • Server: Set this to the name or address of the server where your MongoDB instance is running. You can specify the port here or in Port.
   • Database: Set this to the database you want to read from and write to.

   Connecting to CosmosDB with the MongoDB API

   To obtain the connection string needed to connect to a Cosmos DB account using the MongoDB API, log in to the Azure Portal, select Azure Cosmos DB, and select your account. In the Settings section, click Connection String and set the following values.

   • Server: Set this to the Host value, the FQDN of the server provisioned for your account. You can also specify the port here or in Port.
   • Port: Set this to the port.
   • Database: Set this to the database you want to read from and write to.
   • User: Set this to the database user.
   • Password: Set this to the user's password.

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

Configure the Databricks Connection

You can configure a connection to Databricks from the Connections tab. To add a connection to your Databricks account, navigate to the Connections tab.

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

   To connect to a Databricks cluster, set the properties as described below.

   Note: The needed values can be found in your Databricks instance by navigating to Clusters, and selecting the desired cluster, and selecting the JDBC/ODBC tab under Advanced Options.

   • Server: Set to the Server Hostname of your Databricks cluster.
   • HTTPPath: Set to the HTTP Path of your Databricks cluster.
   • Token: Set to your personal access token (this value can be obtained by navigating to the User Settings page of your Databricks instance and selecting the Access Tokens tab).
4. Click Connect to ensure that the connection is configured properly.
5. Click Save Changes.

Configure Replication Queries

CData Sync enables you to control replication with a point-and-click interface and with SQL queries. For each replication you wish to configure, 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

You can use the Columns and Query tabs of a task to customize your replication. The Columns tab allows you to specify which columns to replicate, rename the columns at the destination, and even perform operations on the source data before replicating. The Query tab allows you to add filters, grouping, and sorting to the replication.

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 your Databricks data to MongoDB.