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# Introduction

The final step in the ingestion process is to index information into an index, such as IDOL Server or Haven OnDemand. After CFS finishes processing documents, it automatically indexes them into the indexes that you have configured.

CFS can index documents into:

- IDOL Server.

  Index documents into IDOL Server to search, analyze, and find patterns in unstructured information. You can index documents directly into an IDOL Server, or send them to a Distributed Index Handler (DIH) to be distributed between multiple IDOL Servers in a distributed architecture.

- Haven OnDemand.

  Haven OnDemand analyzes unstructured information in the cloud.

- Vertica.

  Index documents into a Vertica database to analyze the structured information contained in your data repositories. Much of the metadata extracted by connectors and by KeyView is structured information held in structured fields, so you can use Vertica to gain insight into this information.

By default, CFS indexes each document into all of the indexes specified by the `IndexerSections` parameter in the `[Indexing]` section of its configuration file. However, if the document field `AUTN_INDEXER_SECTIONS` is set, CFS routes the document to the indexes specified in the field. The field accepts a comma-separated list of index names that must match the names of the sections in the CFS configuration file.

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