Unable to start DAS after installing the GPL Extras parcel

When CDH 7.1.x and GPL Extras parcels are activated in your CDP deployment, then you may not be able to start the DAS service and see the following error in the logs: Error: Could not find or load main class org.apache.ranger.credentialapi.buildks.

When you activate multiple parcels in your deployment, the directory path of each parcel is appended to the PARCEL_DIRNAMES environment variable separated by colons (:). For example, PARCEL_DIRNAMES=CDH-7.1.4-1.cdh7.1.4.p0.5755945:GPLEXTRAS-7.1.4-1.gplextras7.1.4.p0.5755945. This changes the path calculation for the Ranger plugin library (ranger_hive_plugin_install_lib) in the DAS /root/DAS-7.1.x/scripts/setup.py file. To resolve this issue, specify the latest activated CDH 7.1.x parcel directory in the DAS WebApp Advanced Configuration Snippet so that it overwrites the PARCEL_DIRNAMES environment variable.

  1. Log into Cloudera Manager as an administrator.
  2. Go to Clusters > $DAS service > Configuration > DAS WebApp and search for the Data Analytics Studio Webapp Server Environment Advanced Configuration Snippet (Safety Valve) field.
  3. Add the following property in the editor mode:



    In the Value field, enter the path of the latest activated CDH 7.1.x parcel that you have installed on your cluster.
    For example:


    Value: CDH-7.1.4-1.cdh7.1.4.p0.5755945

  4. Click Save Changes.
  5. Restart the DAS service.