Impersonation via the HBase REST Gateway

If you are using MapR Version 4.0.2 or later and HBase 0.98.7-1501 or later, you can enable user impersonation to access MapR-DB tables via the HBase REST Gateway. This feature is not supported in earlier combinations of MapR and HBase packages.

Impersonation enables access to tables via user IDs other than the user that runs the Gateway. Impersonation is only supported if the REST Gateway is running as the mapr user (MAPR_USER).

You can enable impersonation via the Gateway on both non-secure and secure MapR clusters (secured using either MapR SASL or Kerberos). MapR-DB does not support gateway impersonation using a Thrift interface. See also Configuring HBase to use Kerberos.