Maintaining Edge Server Clusters - MACROMEDIA FLASH MEDIA SERVER 2-USING FLASH MEDIA SERVER EDGE SERVERS Use Manual

Locate the origin server and those edge servers nearest to it on the same subnet.
If you are licensed to deploy a cluster, make sure all proxies in the cluster are configured
identically.
Configure the conf directory on one proxy.
Place a copy of this conf directory in the same location on the other proxies.
Use a load balancer when you deploy more than one proxy.
Place the load balancer between the clients and the proxies.
Configure the balancer to access the proxies in round-robin mode.
Do not place the load balancer immediately before the origin server.
To set up a cluster of edge servers:
1. Install and configure the first Flash Media Server.
Use the same serial number and license file each time you install Flash Media Server.
A special cluster license file is required. For more information, contact your
Macromedia representative.
2.
Confirm that this Flash Media Server instance is working correctly.
3. Configure the Flash Media Server instance as an origin server.
4. Install and configure the next Flash Media Server in the cluster.
5. Configure this Flash Media Server instance as an edge server.
6. Make sure this edge server points to the origin server.
7. Repeat steps 5 through 7 for each edge server that your license file allows.
Your Flash Media Servers are now clustered. To expand the cluster's capacity, you may add
new edge servers, if your license permits, to the cluster and configure them by following these
instructions.

Maintaining edge server clusters

When an edge starts up, it broadcasts its presence to all other edges in the cluster. When an
edge shuts down, it broadcasts that it is leaving the cluster. If an edge shuts down, all other
edges in the cluster detect the change in state because the edges no longer receive the keep-
alive messages from that edge. The remaining edges automatically update their views of the
cluster and remove the shut-down edge from their views. You only have to start and stop
edges, and they automatically determine which edges are currently enrolled in the cluster.
Introducing edge servers 19