High availability overview

An overview of the high availability configuration and topology options available in IBM® App Connect Enterprise.

In IBM App Connect Enterprise, you can create a high availability solution by using any of the following methods:

Multi-instance integration nodes with IBM MQ

Use a multi-instance integration node so that the integration node is available in the same location as the IBM MQ multi-instance queue manager in a high availability IBM MQ configuration. The multi-instance integration node can either dynamically start in all locations where the multi-instance queue manager runs, or can be set as an MQ Service dependency.

For more information, see Configuring multi-instance integration nodes.

An existing high availability manager

Use an external high availability manager by mounting the external resources to the shared file system. Script files are provided for the common tasks that are required to create a multi-instance integration node.

For more information, see Using an integration node with an existing high availability manager.

An RDQM configuration

Configure an integration node to work with an IBM MQ replicated data queue manager (RDQM).

For more information, see Using an integration node with an RDQM configuration.

An existing Windows Cluster

Add an integration node to the nodes in a Windows Cluster.

For more information, see Using an integration node with an existing Windows Cluster (Windows Server).

The HTTP proxy servlet

Use the HTTP proxy servlet in a servlet container so that you can support high availability, load distribution, access to the integration node from multiple IP addresses and ports, and a larger number of concurrent HTTP sessions.

For more information, see HTTP proxy servlet overview.