Satellite 6: Running "satellite-installer --reset" along with proxy options fails

Issue

• Running satellite-installer --reset along with proxy options fails with below error

  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns: The following processes are still 
  running, please stop the running workers before retrying the pulp-manage-db command.
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    
  resource_manager@satellite.example.com
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    reserved_resource_worker- 
   0@satellite.example.com
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    reserved_resource_worker- 
   3@satellite.example.com
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    reserved_resource_worker- 
   2@satellite.example.com
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    reserved_resource_worker- 
   1@satellite.example.com
  [ WARN 2017-12-25 14:33:35 main]  /Stage[main]/Pulp::Database/Exec[migrate_pulp_db]/returns:    scheduler@satellite.example.com
  [ERROR 2017-12-25 14:33:35 main]  pulp-manage-db && touch /var/lib/pulp/init.flag returned 70 instead of one of [0]
  [ INFO 2017-12-25 14:33:35 main] /usr/share/ruby/vendor_ruby/puppet/util/errors.rb:106:in fail'
  [ INFO 2017-12-25 14:33:35 main] /usr/share/ruby/vendor_ruby/puppet/type/exec.rb:160:in `sync'
  [ INFO 2017-12-25 14:33:35 main] /usr/share/ruby/vendor_ruby/puppet/transaction/resource_harness.rb:204:in `sync'
  ..