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# Distributed Index Handler

The Distributed Index Handler (DIH) distributes index actions between multiple IDOL Servers or Content components.

DIH can either index all documents into multiple child servers, or it can distribute the documents evenly between them. Multiple identical copies of child servers allows load balancing and failover, while distributing the index allows you to store more content.

- Basic Distribution Methods. The simplest configurations that allow you to distribute data to multiple child IDOL Servers.

- Advanced Distribution Modes. More advanced configurations for distributions.

- Choose a Distribution Mode. How to decide which mode to use for distribution.

- Engine Management in DIH. Manage the DIH child servers.

- The Index Process in a Distributed System. Details of how IDOL indexes documents in a distributed system.

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