BEA WebLogic Server 9.0 Domain Configuration Schema Reference

http://www.bea.com/ns/weblogic/90/domain
element cluster-type

Super Types
{http://www.w3.org/2001/XMLSchema}string
|
+--{http://www.bea.com/ns/weblogic/90/domain} (restriction)

Documentation
Optimizes cross-cluster replication for the type of network
 that servers in the clusters use for administrative communication.



To enhance the reliability of HTTP sessions, you can
 configure servers in one cluster to replicate the session data
 to servers in a different cluster. In such an environment,
 configure the clusters to be one of the following types:


  - man


if the clustered servers can send their data through a metro
 area network (man) in which latency is negligible. With this
 ClusterType value, servers replicate session state synchronously
 and in memory only. For example, when serverA in cluster1 starts an
 HTTP session, its backup server, serverB in cluster2, immediately
 replicates this session in memory to Server B.



  - wan


if the clusters are far apart or send their data through a wide
 area network (wan) that experiences significant network latency.
 With this ClusterType value, a server replicates session state
 synchronously to the backup server in the same cluster and
 asynchronously to a server in the remote cluster. For example, when
 serverA in cluster1 starts an HTTP session, it sends the data to
 serverB in cluster1 and then asynchronously sends data to serverX
 in cluster 2. ServerX will persist the session state in the
 database.



If you persist session data in a replicating database, and if you prefer
 to use the database to replicate the data instead of WebLogic Server,
 choose a cluster type of wan and leave the
 remote cluster address undefined. WebLogic Server saves the session data
 to the local database and assumes that the database replicates data
 as needed.




 


 Default: "none"
Properties
This component is not nillable.

Model
<cluster-type>

</cluster-type>

Source
<xs:element minOccurs="0" name="cluster-type" nillable="true">
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="none"/>
<xs:enumeration value="wan"/>
<xs:enumeration value="man"/>
</xs:restriction>
</xs:simpleType>
</xs:element>

BEA WebLogic Server 9.0 Domain Configuration Schema Reference

Copyright 2005 BEA Systems Inc. Complete WebLogic Server Documentation