<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Distributed Appian Topology in AWS</title><link>https://community.appian.com/discussions/f/administration/20223/distributed-appian-topology-in-aws</link><description>Does anyone have an AWS component diagram for a distributed engine topology with HA failover? 
 I am thinking conceptually how many EC2, SSD, VPC&amp;#39;s, IP&amp;#39;s, etc. 
 Can the DB be a managed DB service or does it need to be a full DB installed on an EC2? </description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator></channel></rss>