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SNS? ]]>SNS will make sure that the W3 Total Cache caches for each server is purged when required. ]]>In order to use Database Cluster you need use WordPress in network mode and enable Enterprise mode for W3 Total Cache.
After enabling Enterprise mode you will find a area inside Database Cache box on the General Settings page. Click 'Enable database cluster' to enable the functionality.
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You need to visit SNS and sign in /create account.
Create a new topic.
Copy paste the Topic ARN into correspongding field on the General Settings page.
Enter the corrent SNS region in the corresponding textfield on General Settings page.
Enter your API key and API secret. You find your API key and API secret under Security Credentials in your Amazon account.