Open topic with navigation

# Compress the Data Index

You can configure IDOL Server to compress the `nodetable` directory to reduce the disk footprint, by using the `NodeTableCompression` configuration parameter.

Note: If you change the compression method after you have started the server, the compression applies only for operations that index new data or rewrite existing data (such as `DREREPLACE`). To compress or change the compression of the whole index, you can run a `DRECOMPACT` operation with the `NodeTableCompactWindowKB` parameter set. For more information, refer to the IDOL Server Reference.

For more information about the `NodeTableCompression` option, and the compression method to use, refer to IDOL Expert.

To configure IDOL Server to compress the nodetable index

1. Open the IDOL Server configuration file in a text editor.

2. In the `[Server]` section, add the `NodeTableCompression` parameter and set it to the compression method that you want to use to compress the index.

   You can set it to one of the following values:

   - `zlib`

   - `snappy`

   - `lz4`

   - `lz4hc`

3. Save and close the configuration file. Restart IDOL Server for your changes to take effect.

© 2016 Hewlett Packard Enterprise Development LP | Send documentation feedback to HPE Close We welcome your comments! To open the configured email client on this computer, open an email window. Otherwise, copy the information below to a web mail client, and send this email to AutonomyTPFeedback@hpe.com. Product: Topic Title: Help Topic: Feedback:

_HP_HTML5_bannerTitle.htm