Distributed Index Handler 25.4
Distributed Index Handler Help

# Use DREADD

The DIH accepts the DREADD indexing action, which allows you to send data (that is accessible to the DIH through the file system) directly to the DIH for indexing. Use the following action syntax:

    http://DIHhost:IndexPort/DREADD?parameters

When you send this action to the DIH instead of to a Content component, note that:

- `DIHhost` and `IndexPort` are the host and index port of the DIH, not of any of its child Content components.
- In mirror mode, DIH sends the data to every child Content for indexing. In simple non-mirror mode, the DIH decides which Content receives index data, but all Content components receive all actions. Use reference-based indexing or DistributeSendMinimal to further reduce the amount of traffic and Content load by allowing the DIH to distribute index data and index actions.
- When you use the PreserveDREADD configuration option, all the child servers must have access to the index file.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Distributed Index Handler 25.4

Topic Title: Use DREADD