@Charbel Keyrouz, Yes, you can add multiple TServers to a node. The support was added from Accumulo 1.8 https://accumulo.apache.org/1.9/accumulo_user_manual.html#_running_multiple_tabletservers_on_a_single_node https://issues.apache.org/jira/browse/ACCUMULO-4328 I guess this cannot be done using Ambari. On a side note, the latest HDP 2.6.5 still uses Accumulo 1.7.0 https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.5/bk_release-notes/content/comp_versions.html . -Aditya ... View more