Configuration File Overview

The default Graph Lakehouse system configuration is optimized for most Graph Lakehouse installations. If Altair Support recommends that you change the configuration, you can edit the configuration file, <install_path>/config/settings.conf, to modify or add settings. Each time you start the database, Graph Lakehouse reads this file and stores the configuration in memory. On a cluster, change settings.conf on the leader server only. See Graph Lakehouse Settings Reference for information about the units of measurement for the settings as well as any special instructions.

• The commented lines in the file show the default configuration values. To customize the value for a setting that is commented out, uncomment the line and edit the value portion of setting_name=**value**.

• To add settings to settings.conf, add the setting and new value in the format below. Type each setting and value pair on a new line.

  setting_name=value

  Graph Lakehouse applies settings from the top to the bottom of the file. If the same setting appears more than once, Graph Lakehouse applies the value for the last instance of the setting. The last instance overrides any previous instances.

• To revert Graph Lakehouse to a previous configuration from a backup file, rename the existing settings.conf file and then change the name of the desired backup file to settings.conf.

After you change settings.conf, you must restart Graph Lakehouse for the settings to take effect. See Starting and Stopping Graph Lakehouse for instructions.