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Configuring Clustered Servers

TeamConnect's clustering feature allows transparent failover and recovery for end users. In the event of a node's failure, each session on that node is transferred to another node, preserving even the uncommitted edits in the session's browser.

In the case of a recovered session, all work is saved except the uncommitted edits in the browser of the expired session.

Each application server vendor implements clustering and cache synchronization in a different way. This section does not discuss details of a specific vendor's implementation, but describes properties of TeamConnect that are common across all implementations.

Configure your application servers for session replication across all nodes. All nodes must run exactly the same version of TeamConnect.


The TeamConnect installer makes many changes to when it runs but to configure clustering you will need to make additional manual edits. Each node in a cluster runs an identical copy of TeamConnect, so the properties file needs to be edited only once per cluster.

Here are the properties that require editing, with their definitions:

Clustering Properties

Property Name



Must be YES to enable clustering

Use a unique character string of your choice. The purpose of this property is to avoid the situation where multiple clusters of application servers are running on the same network, and one cluster attempts to synchronize cache with a different cluster Each cluster should have a different value in this property.


Enter a port number that will be used by all nodes in the cluster. The RMI registry is started in-process by TeamConnect.

sync.multicastGroupAdd ress

Optional. Default is


Optional. Default is 3121

Special Considerations for IMAP

If you are using IMAP to integrate with an Exchange server, you must configure TCP/IP load balancing. IMAP does not use the failover or recovery capabilities of the main TeamConnect clustering feature.

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