After transitioning your cluster from HDP 3.1.5.x to CDP Private Cloud Base, you can manually install the Impala service.
Impala is a new service that is not available in HDP. By default Impala uses the
cm_hive ranger service for authorization.
If you want to use the same Ranger service which Hive is using, you must:
On the Cloudera Manager UI:
- Update the service name through safety valve in Cloudera Manager UI for the Impala
service. In ranger-impala-security.xml, add
<migrated_hive_ranger_service_name> hive service name. For
On the Ranger Admin UI:
- Add the Impala user in policy.download.auth.users and
tag.download.auth.users configurations in the migrated hive
ranger service. For example,
- Add the Impala user to the default policies in the migrated hive ranger service. For