Knowledge Discovery Admin 25.4
Knowledge Discovery Admin User Guide

# Flush the Index Cache to Disk

(Applies to Content, Agentstore, DIH, and Proxy components)

The indexing process works in two stages:

1. Content creates a representation of the new data in the index cache.
2. Content synchronizes the cache with data that it currently contains, and stores the new data on disk, removing it from the index cache.

The Content component can be set up to automatically store index data on disk every time it finishes indexing an IDX or XML file, or to delay synchronization until the index cache is full or after a specified duration. The `DelayedSync` parameter sets the delayed synchronization, and is enabled by default.

When delayed synchronization is enabled, you can flush the index cache to disk on demand using the Sync function in Knowledge Discovery Admin. This function uses the `DRESYNC` action. For more information about this action and the `DelayedSync` parameter, see the Content Component Help.

To flush the index cache to disk

1. In the Service Control tab in the Console page, click Sync.

   A confirmation message appears.

2. Click Sync.

NOTE: Index performance might be affected while the `DRESYNC` action is running.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Admin 25.4

Topic Title: Flush the Index Cache to Disk