Administration Console Online Help

    Previous Next  Open TOC in new window 
Content starts here

Configure JMS-related services migration

Before you begin

Ensure that you have created a machine and have assigned managed servers to it. For more information on configuring a machine, see Create and configure machines. For more information on assigning servers to a machine, see Assign server instances to machines.

Note: You must set a unique Listen Address value for the Managed Server instance that will host a migrated JMS service; otherwise, the migration will fail.

In a cluster, a recommended best practice is to target a JMS-related service to a migratable target so that a server member will not be a single point of failure. A migratable target is a special target that can serve as a grouping of JMS services and which is active on only server member in a cluster. High availability is achieved by migrating a migratable target from one server member to another when a problem occurs on the original server. JMS-related services include JMS servers, SAF agents, path service, and custom persistent stores.

Note: For instructions on configuring whole server migration, see Configure server migration in a cluster.

The main steps for configuring JMS-related service migration are:

  1. Configure migratable targets for your JMS-related services, including specifying a preferred host server in the cluster, selecting candidate servers to use as a backup for services on the migratable target, and specifying a migration policy. When using a migratable target, configure the migratable target before deploying or activating the service in the cluster. See Configure migratable targets for JMS-related services.
  2. For persistent messaging, configure a custom persistent store that is targeted to the same migratable target as the JMS service. Unless you are using pre/post migration scripts to move the store data across migrated servers, the store must be configured such that all the candidate servers in the migratable target have access to it. See Configure persistent stores.
  3. Target the JMS services to the same migratable target used by the custom persistent store. See the following topics:

After you finish

Follow the instructions for manually migrating a migratable target and its JMS-related services. See Manually migrate JMS-related services.

  Back to Top