WebSphere Extended Deployment Dynamic Clusters
You can create a IBM WebSphere Extended Deployment dynamic cluster to run IBM WebSphere Portal.
Dynamic clusters are not supported on i5/OS.
For each node that will be part of the dynamic cluster, follow the instructions to install and configure WebSphere Portal in a production environment using WebSphere XD as the deployment manager. However, do not run the task to set up a static cluster...
cluster-node-config-cluster-setupAfter installing and preparing all nodes, follow the instructions provided to set up a WebSphere XD node group and dynamic cluster for WebSphere Portal.
The On Demand Router (ODR) component provides capabilities such as...
- workload balancing
- prioritization
- health monitoring
- dynamic operations
An ODR can be configured to provide multi-cluster routing, including...
- dynamic clusters located in remote cells
- routing to other servers that are not running WebSphere XD
The ODR can serve as a replacement for the HTTP server plug-in, but in many configurations both components are used. The HTTP server could be located in the demilitarized zone to serve static content and to provide an entry point to the private network where the ODR resides.
Configure advanced topologies using the On Demand Router Multiple Cluster Routing Policy (MCRP) to have a single ODR route traffic to multiple dynamic clusters is beyond the scope of this information. See the WebSphere Portal Wiki for information about configuring MCRP.
When applying maintenance to upgrade the level of WebSphere XD and WebSphere ND it is important that the deployment manager remain inactive until both upgrades are complete because if the deployment manager is active before both upgrades are complete it may detect an incompatible version of WebSphere XD and remove some required resources from the dynamic cluster. Keeping the deployment manager inactive until both ND and WebSphere XD updates have been completed will insure that this potential problem does not occur.
See Preparing WAS ND to install the product for information on the order of product installation to prepare for WebSphere XD and ODR.
See Creating and configuring ODRs for information on creating an ODR.
Parent topic
Cluster guidelines and limitations