Configuring Complex Component Based Clustering

Complex component-based clustering follows the high availability model described in the EAServer System Administration Guide without introducing specialized failover hardware or operating system level clustering. This configuration provides:

IIOP failover through client knowledge of all hosts within a cluster. IIOP iterates through a concatenated list of URLs until it finds a server which is available.
HTTP failover through the EAServer Web Server Redirector plugin.
A synchronized EAServer cluster that duplicates service package deployments.
State database and asynchronous message stores that are maintained outside the cluster.

Note

See Chapter 6 of the EAServer System Administration Guide located in the Sybase WorkSpace Server Administration collection for more information.

To configure complex component based clustering:

Install Unwired Orchestrator on all machines in the cluster.
See the Unwired Orchestrator Installation Guide for more information.
Designate a node in the cluster to be the primary server.
See EAServer System Administration Guide for more information.
Develop the Sybase Services Package Profile.
(Optional) Configure network access for inbound transports using Flat File.
Note
File must be referenced through a network path and not a local path.
Configure the EAServer cluster.
See EAServer System Administration Guide for more information.
Deploy the service package into the primary server.
Synchronize cluster components.
See EAServer System Administration Guide for more information.
Copy the <installation directory>\Orch-5_0\EAServer\Repository\UOPackageRegistry.persist file of the primary server to the Repository directories of the secondary servers.
Stop and restart the secondary servers.
See EAServer System Administration Guide for more information.
Configure the client application to communicate with the cluster. Choose from the following:
- Set up the SOAP client to communicate with EAServer Web Server Redirector.
- Set up the EAServerJMS messaging client for IIOP failover.
See EAServer System Administration Guide for more information.
Edit service bindings of invoked SOAP services and EJB services to be location independent.
(Optional) Configure database clustering.
See the Adaptive Server Enterprise 12.5.2 collection under Sybase WorkSpace Server Administration for more information.