Replicate Amazon S3 Data to Multiple Databases via the CData Sync CLI

Always-on applications rely on automatic failover capabilities and real-time access to data. CData Sync for Amazon S3 integrates live Amazon S3 data into your mirrored databases, always-on cloud databases, and other databases such as your reporting server: Automatically synchronize with remote Amazon S3 data from Windows or any machine running Java.

You can use Sync's command-line interface (CLI) to easily control almost all aspects of the replication. You can use the CLI to replicate Amazon S3 data to one or many databases without any need to change your configuration.

Connect to Amazon S3 Data

You can save connection strings and other settings like email notifications in XML configuration files.

The following example shows how to replicate to SQLite.

Windows

<?xml version="1.0" encoding="UTF-8" ?>
<CDataSync><DatabaseType>SQLite</DatabaseType>
  <DatabaseProvider>System.Data.SQLite</DatabaseProvider>
  <ConnectionString>AuthScheme=AwsRootKeys;AWSAccessKey=myAccessKey;AWSSecretKey=mySecretKey;</ConnectionString>
  <ReplicateAll>False</ReplicateAll>
  <NotificationUserName></NotificationUserName>
  <DatabaseConnectionString>Data Source=C:\my.db</DatabaseConnectionString>
  <TaskSchedulerStartTime>09:51</TaskSchedulerStartTime>
  <TaskSchedulerInterval>Never</TaskSchedulerInterval>
</CDataSync>

Java

<?xml version="1.0" encoding="UTF-8" ?>
<CDataSync><DatabaseType>SQLite</DatabaseType><DatabaseProvider>org.sqlite.JDBC</DatabaseProvider>
<ConnectionString>AuthScheme=AwsRootKeys;AWSAccessKey=myAccessKey;AWSSecretKey=mySecretKey;</ConnectionString>
<ReplicateAll>False</ReplicateAll>
<NotificationUserName></NotificationUserName>
<DatabaseConnectionString>Data Source=C:\my.db</DatabaseConnectionString>
</CDataSync>

The Amazon S3 source connector supports several authentication schemes, including AWS Root Keys, EC2 Roles, IAM Roles, Active Directory Federation Services, Okta, PingFederate, AWS Temporary Credentials, AWS Credentials File, and Azure Active Directory.

AWS Root Keys

To connect with your account root credentials, set the following properties:

• Auth Scheme: Select AwsRootKeys.
• AWS Access Key: Enter your AWS account access key. Find this value on your AWS security credentials page.
• AWS Secret Key: Enter your AWS account secret key.
• (Optional) MFA Serial Number: The serial number for your multifactor authentication device, if used.
• (Optional) MFA Token: The temporary token from your MFA device.
• (Optional) Temporary Token Duration: Duration in seconds for temporary credentials. Default is 3600.

Note: You can connect as the AWS account administrator, but we recommend IAM user credentials to access AWS services. For other authentication methods, refer to the Help documentation.

Configure Replication Queries

Sync enables you to control replication with standard SQL. The REPLICATE statement is a high-level command that caches and maintains a table in your database. You can define any SELECT query supported by the Amazon S3 API. The statement below caches and incrementally updates a table of Amazon S3 data:

REPLICATE ObjectsACL;

You can specify a file containing the replication queries. This enables you to use the same replication queries to replicate to several databases.

Run Sync

After you have configured the connection strings and replication queries, you can run Sync with the following command-line options:

Windows

AmazonS3Sync.exe -g MySQLiteConfig.xml -f AmazonS3Sync.sql

Java

java -Xbootclasspath/p:c:\sqlitejdbc.jar -jar AmazonS3Sync.jar -g MySQLiteConfig.xml -f AmazonS3Sync.sql