# Expire Documents

The `DREEXPIRE` index action instructs the DIH to delete or archive documents that have reached a specified age. You might archive to ensure that the documents in your IDOL servers are current. Use the following action syntax:

    http://DIHhost:IndexPort/DREEXPIRE?

When you send this action to the DIH instead of to an IDOL server, note:

- `DIHhost` is the IP address (or name) of the machine on which the DIH is installed, and `IndexPort` is the number of the port that you use to send index actions to the DIH.
- This action expires all documents that have passed the expiration age on all child IDOL servers of the DIH.

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