Cloudera Docs

Incremental data migration

From Cloudera on premises 1.5.1, data migration over multiple iterations is enabled instead of migrating in one single step. The migration tool does not stop the CDSW during the incremental migration activities.

After each incremental migration, the administrator can access the Cloudera AI Workbench and validate the migrated workloads or start new workloads in Cloudera AI as part of the validation.

Incremental migration can be started by selecting the Incremental CDSW migration option from the Actions menu of the workbench.

The incremental migration consists of the following phases:

  1. Migration of CDSW Kubeconfig.

    This is an optional parameter, therefore it is an optional step.

  2. Final migration.

    Select this option if the Cloudera AI validation is finished and all workloads work as expected. Once the final migration is completed, the CDSW will be in a stopped state.

    • When performing the final migration, you can choose the following additional options:

      • Stop Applications.

        The Applications in the Cloudera AI are stopped after the migration. You have to start each application manually after the final migration.

      • Stop Jobs.

        The recurring jobs in the Cloudera AI are paused after the migration. You have to start each job manually after the final migration.

      • Stop Models.

        The models are stopped after the migration, and you have to start the models manually after the final migration.

Once all the validation is finished, the Administrator can perform the final migration. Following the final migration, the CDSW is in a stopped state, and you can start using the Cloudera AI.