The directory you've linked to is part of the CDH parcel and should not be modified. The particular directory you've found is some sort of default Solr client configuration, but isn't relevant to how you define collection schemas or configuration in SolrCloud.
NOTE: For all commands below, make sure you are running on a node defined as a Solr Gateway or Solr Server - it will have all the necessary client configuration populated in /etc/solr/conf
Each SolrCloud collection has it's own configuration stored in an instancedir. You create a new local copy of an instancedir with:
solrctl instancedir --generate <directory_path>
e.g.
solrctl instancedir --generate employees # will create an instancedir directory named 'employees' in the current working directory
You will find a fully populated 'conf' directory in this local instancedir - you can edit the schema.xml, solrconfig.xml, etc. When you're satisfied with the configuration, upload it to Zookeeper (ZK) with:
solrctl instancedir --create <config_name_in_ZK> <directory_path>
e.g.
solrctl instancedir --create employees_config employees
You can list the configs uploaded to ZK with:
solrctl instancedir --list
Does this solve your issue?
