Upgrading on OpenShiftPDF version

Scaling down Cloudera Data Engineering embedded database

Upgrading the OpenShift Container Platform (OCP) version while Cloudera Data Engineering service is enabled, can cause database corruption in the embedded MySQL database used for Cloudera Data Engineering. Follow the below steps before starting the OCP version upgrade.

  1. Identifying the CDE Namespace
    1. Navigate to the Cloudera Data Engineering Overview page by clicking the Data Engineering tile in the Cloudera Data Platform (CDP) management console.
    2. In the CDE Services column, click Service Details for the CDE service.
    3. Note the Cluster ID shown in the page. For example, if the Cluster ID is cluster-abcd1234, then the CDE Namespace is dex-base-abcd1234.
    4. Use this CDE Namespace (in the above example, it is dex-base-abcd1234) in the following instructions to run kubernetes commands.
  2. Scale down Cloudera Data Engineering embedded database

    Access the OpenShift cluster with OpenShift CLI or Kubernetes CLI, and scale down the Cloudera Data Engineering embedded database statefulset to 0 with the following command:

    OpenShift CLI
    oc scale statefulset/cdp-cde-embedded-db --namespace <CDE Namespace> --replicas 0

    Kubernetes CLI

    kubectl scale statefulset/cdp-cde-embedded-db --namespace <CDE Namespace> --replicas 0