Configuring multi-instance integration nodes
Use WebSphere® MQ to configure an integration node to run in multi-instance mode for high availability.
Before you begin
- Review the topic Multi-instance queue managers in the WebSphere MQ product documentation to understand the use of multi-instance queue managers.
About this task
The set of tasks that describe how to configure a multi-instance
integration node assumes the following criteria:
- A file server is configured to host both the shared work path directory for the multi-instance integration node and the shared directories for the multi-instance queue manager.
- The file server is shared between two computers, each of which has a licensed copy of the IBM® Integration Bus and WebSphere MQ products installed.
The steps apply to all operating systems that are supported by IBM Integration Bus and WebSphere MQ, except for z/OS®. Multi-instance integration nodes and multi-instance queue managers are not supported on z/OS.
To configure an integration node to run in multi-instance mode, complete the following steps.
Procedure
- Create a shared path directory on an NFS or NAS server.
On Windows, you can use a shared UNC path. Follow the steps as described in the WebSphere MQ product documentation; see Creating a shared file system.
- Create or configure the multi-instance queue manager. Follow the appropriate steps for your operating system as described in the WebSphere MQ product documentation; see Create a multi-instance queue manager.
- Follow the steps to create the multi-instance integration node as described in Creating a multi-instance integration node.
What to do next
After you have created a multi-instance integration node, you can also optionally complete the following actions.
- Use the mqsilist command to view integration nodes, and which integration nodes are multi-instance.
- Delete a multi-instance integration node, as described in Deleting a multi-instance integration node.
- Delete a multi-instance queue manager, as described in the WebSphere MQ product documentation, Deleting a multi-instance queue manager.
- Verify shared file system locks, as described in the WebSphere MQ product documentation, Verifying shared file system behavior.
- Back up, and later restore a multi-instance integration node, as described in Backing up and restoring a multi-instance integration node
- Configure the global cache to withstand software or hardware failures for as long as possible, as described in Configuring the global cache for multi-instance integration nodes.
- Learn how to fail over multi-instance integration nodes, as described in Failing over a multi-instance integration node and queue manager.