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Version: 10.3

Migrate AutoML models from legacy environment

Following the steps below, you can migrate AutoML models from environments with version 9.2 or 9.3 SPA to those with any platform version (v.10.1+) without retraining.

Prerequisites​

Before you proceed with migration, comply with the following prerequisites:

  • You have the WorkFusion platform v10.1+ installed.
  • You have a model trained on v9.2.x or 9.3.x SPA.
  • If a model was built with AutoML SDK, its Java Maven project sources are available.
  • On your Nexus, you need to have Archetype version 9.2.0.20 for SPA 9.2.x or 9.3.0.9 for SPA 9.3.x.

Migration flow​

The migration flow depends on whether you import a trained model or an artifact (not trained yet).

Migrate trained model​

In the output folder of a trained model, create a model-info.json file with the following content:

{
    "modelId": "%egid%",
    "code": "%hypermodel_code%",
    "version": "%hypermodel_version%"
}

With the code, you define the following variables:

  • modelId: egid, training identifier. Corresponds to the folder name of the vds-resources bucket.
  • code: hyper model code from the HyperModel class.
  • version: hyper model version from the HyperModel class.

See the model-info.json example below:

{
    "modelId": "message_d47e401f-e465-4a69-912d-3a905239a950",
    "code": "k1-details-information-extraction",
    "version": "1.7"
}

Migrate artifact (hyper model)​

To migrate an artifact (hyper model), proceed as follows:

  1. Applicable only for AutoML SDK (custom) models: Configure your Maven to work with the platform v10.1+ environment. For details, see the Configure local environment guide.

  2. In pom.xml, change the version of hypermodel-parent.

  3. Add the following line as the third argument to HypermodelArtifactBuilder (approximate location is line 80):

<argument>${project.groupId}:${project.artifactId}:${project.version}</argument>

  1. In the src/main/resources folder, create META-INF/worker sub-folders.

  2. Download, unzip, and put the following files in the src/main/resource/META-INF/worker folder:

    See the figure below for the folder location:

  3. To create an artifact for deployment, run the following command:

    mvn clean install

Import migrated model to platform instance​

Create a package for import and apply it to the corresponding instance. For more details, refer to the Import Asset Bundle via Control Tower UI page.

TROUBLESHOOTING

For tips on troubleshooting the AutoML model import issues, read the following support guide.