Install the Discovery Module

The Logi Discovery Module (DM) provides an embedded data discovery experience that works directly with relational data sources using Logi data services. It does this by making several special elements available in Logi Studio. These include the Thinkspace element, which provides a highly-interactive analysis experience. In its interface, best-fit visualization suggestions are automatically referred to the user by a built-in "recommendation engine" and data is organized using intelligent technology that clusters data to make it more easily consumable by users.

The DM is installed separately, after Logi Info and, if using it, the SSRM are installed. Please note these important restrictions:

Advanced features discussed here work with Logi Info v12.5 and later, 64-bit version (there is no 32-bit version available). Earlier and later Info versions may not support them; consult the Release Notes for specific details.

Databases supported include:

• AWS Redshift
• Infobright
• JDBC database providers
• MS SQL Server
• MySQL
• Oracle
• PostgreSQL
• Snowflake
• Vertica

Logi Info applications on IIS that utilize DM v3.1+ must run using an Application Pool configured for Integrated pipeline mode. Classic pipeline mode Application Pools will not work.

If you're using Internet Explorer 11, the Internet OptionsSecurity setting for applications using this technology must be set to Medium High or lower.

Important Java Information

Starting in January 2019, Oracle discontinued its free, long-term support of the Oracle Java Development Kit (JDK) for enterprises. The impact of this on Logi products is discussed in detail in Java Usage Policy.

As a result, Logi no longer distributes the Oracle JRE as part of the Discovery installation. Prior to installing Discovery 3.2, you must have OpenJDK 12 installed; Oracle JRE is not supported.

When you install OpenJDK, you must configure your Windows SystemVariables properly. See Install the Discovery Module - Windows - Setting Windows SystemVariables for OpenJDK for more information.

What Gets Installed

The following components will be installed on the web server:

• An embedded, runtime environment for server-side web applications (node.js)
• An embedded, Java-based relational database (H2)

Node.js and H2 are extremely compact, have a small installation footprint, and do not install a lot of extra tools or management utilities. They're provided as transparent services that require little or no management.

Two Windows services are created during the installation: Logi Application Service and Logi Data Service.

Important Upgrade Information

If you're upgrading from earlier versions of Discovery, please uninstall the earlier version first, using Control Panel, and at the end of the process be sure to respond "Yes" when prompted to remove logs and the database. Then run the Discovery 3.1+ installer to create a fresh installation.

Release Pairings

Information about which Logi Info and DM versions should be used together is available in Add-on Modules. For more information, see the Release Notes for each Logi Info version.