I did not include the "--purge" option when I first installed the HDF. # ambari-server install-mpack --mpack=/tmp/hdf-ambari-mpack-3.0.2.0-76.tar.gz --verbose You have only deleted the Registry service as you have noticed. And, I have an error installing it, including the "--purge" option. # ambari-server install-mpack --mpack=/tmp/hdf-ambari-mpack-3.0.2.0-76.tar.gz --verbose --purge ======= Error Message =========== ERROR: This Ambari instance is already managing the cluster HDP that has the HDP-2.6 stack installed on it. The management pack you are attempting to install only contains stack definitions for [HDF]. Since this management pack does not contain a stack that has already being deployed by Ambari, the --purge option would cause your existing Ambari installation to be unusable. Due to that we cannot install this management pack.
Mpack installation checker failed! ERROR: Exiting with exit code 1.
REASON: This Ambari instance is already managing the cluster HDP that has the HDP-2.6 stack installed on it. The management pack you are attempting to install only contains stack definitions for [HDF]. Since this management pack does not contain a stack that has already being deployed by Ambari, the --purge option would cause your existing Ambari installation to be unusable. Due to that we cannot install this management pack.
Mpack installation checker failed!
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