CDM shows these group mapping providers (hadoop.security.group.mapping):

- jniBasedUnixGroupsMapping

- ShellBasedUnixGroupsMapping

- LdapGroupsMapping

In 2012 a CompositeGroupsMappings provider was created, but I don't see it in CDM (v5.7.1)

Is it possible to configure CDM to use the CompositeGroupsMappings provider using a safety valve?

- the LdapGroupsMapping should be used for regular users

- the ShellBasedUnixGroupsMapping should be used for system accounts, like hdfs & yarn

thanks