IDOL 12.13

# Distribution

You can distribute IDOL over multiple machines, by using the Distributed Index Handler (DIH) and Distributed Action Handler (DAH). These components distribute index actions and ACI actions respectively to multiple IDOL Servers.

## Distributed Index Handler

- Basic Distribution Methods. Information about the basic ways to distribute content between multiple IDOL server instances.

- Advanced Distribution Modes. Information about the more advanced ways to distribute content.

- Choose a Distribution Mode. Considerations and advice about how to choose a distribution method to use.

- DIH Distribution Mode Features. A list of the different features available in different distribution modes.

- Engine Management in DIH. Use the `EngineManagement` action to control the DIH and its child servers.

- The Index Process in a Distributed System. Details of the index process when using a DIH.

## Distributed Action Handler

- DAH Distribution Modes. Information about the basic ways to distribute actions between multiple IDOL server instances.

- Distribution Methods. Information about distributing actions for failover and load balancing, or for distributing actions to View servers.

- Advanced DAH Structures. Configure complex DAH structures with large distributed indexes, and multiple tiers of servers.

- Virtual Databases. Use virtual databases to determine how to distribute actions and aggregate content.

- Engine Management in DAH. Use the `EngineManagement` action to control the DAH and its child servers.

© Copyright 2022 Micro Focus or one of its affiliates
Version 12.13 | Last updated October 2022

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Product: IDOL 12.13

Topic Title: Distribution