Upgrade to MarkLogic Data Hub 5.8

The notes and steps in this tab are for the following upgrade paths:

• DHF 4.3 » Data Hub 5.8

Procedure

1. Update the /your-project-root/build.gradle file.

   • In the plugins section, set com.marklogic.ml-data-hub to the new Data Hub version.

        plugins {
           // Gradle Properties plugin
           id 'net.saliman.properties' version '1.4.6'
     
           // Data Hub plugin
           id 'com.marklogic.ml-data-hub' version 'VERSION_NUMBER'
       }
     

     net.saliman.properties	Gradle Properties plugin	Allows you to create different environments for your Gradle deployment and set up a gradle-env.properties file, where env is the environment name. When running a Gradle task, you can specify the target environment with the environmentName option. For more information, see https://github.com/stevesaliman/gradle-properties-plugin.
     com.marklogic.ml-data-hub	Data Hub plugin	Extends the ml-gradle plugin with Data Hub-specific commands.

   • In the dependencies section, change compile to implementation.
     Note: This step is only required if one of the following applies to your project:

     • you are upgrading from a project using Gradle 6.x or earlier to 7.0 or later.
     • the build.gradle file already uses compile for dependencies.

     You must use implementation for dependencies because compile is not supported in Gradle versions 7.0 and later.

        dependencies {
           implementation "com.marklogic:marklogic-data-hub:VERSION_NUMBER"
       }
     

2. Update the /your-project-root/gradle/wrapper/gradle-wrapper.properties file.
   Note: This step is only required if you are upgrading from a project using Gradle 6.4 or earlier to 6.4 or later.

   Set distributionUrl to https\://services.gradle.org/distributions/gradle-6.4-bin.zip.

   distributionUrl=https\://services.gradle.org/distributions/gradle-6.4-bin.zip

3. At your project root, run the Gradle task hubUpdate.

   Running the hubUpdate task with the -i option (info mode) displays specifically what the task does, including configuration settings that changed.

   Unix systemsWindows
   ./gradlew hubUpdate -igradlew.bat hubUpdate -i

   hubUpdate automatically moves the following artifacts to the new project.

   From old project	To Data Hub 5.8 project
   your-project-root/plugins/entities/entity1/entity1.entity.json ... your-project-root/plugins/entities/entityN/entityN.entity.json The input and harmonize folders remain in the same plugins/entities/entity* folders.	your-project-root/entities/entity1.entity.json ... your-project-root/entities/entityN.entity.json
   your-project-root/plugins/mappings (the entire directory)	your-project-root/mappings

4. Update the gradle.properties file.
   • Delete the mlDHFVersion line.
   • (Recommended) To use the new Data Hub 5.2 default permissions for modules (data-hub-module-reader,read,data-hub-module-reader,execute,data-hub-module-writer,update,rest-extension-user,execute), delete mlModulePermissions.
5. If you have existing Data Hub 4.x flows,

   1. Migrate 4x flows to 5.x steps.
   2. Add them to new 5.x flows.
6. Run the Gradle task mlDeploy.
   Unix systemsWindows
   ./gradlew mlDeploy -igradlew.bat mlDeploy -i