[root@grpapgwebs21 html]# drush --debug -v dc-getauth
Starting Drush preflight. [0.01 sec, 4.14 MB]                                                                                 [preflight]
Cache HIT cid: 7.1.0-commandfiles-0-fc1cd62fa8fc4a79c6471dedc94a852f [0.04 sec, 4.22 MB]                                          [debug]
Bootstrap to phase 0. [0.27 sec, 10.41 MB]                                                                                    [bootstrap]
Bootstrap to phase 5. [0.27 sec, 10.41 MB]                                                                                    [bootstrap]
Drush bootstrap phase : bootstrap_drupal_root() [0.28 sec, 11 MB]                                                             [bootstrap]
Initialized Drupal 7.43 root directory at /var/www/html [0.29 sec, 11 MB]                                                        [notice]
Find command files for phase 1 (max=5) [0.3 sec, 8.61 MB]                                                                         [debug]
Cache HIT cid: 7.1.0-commandfiles-1-4fe04ee629216c11ae5176566eeb1b72 [0.3 sec, 8.62 MB]                                           [debug]
Drush bootstrap phase : bootstrap_drupal_site() [0.3 sec, 8.62 MB]                                                            [bootstrap]
Initialized Drupal site default at sites/default [0.3 sec, 8.62 MB]                                                              [notice]
Find command files for phase 2 (max=5) [0.31 sec, 8.63 MB]                                                                        [debug]
Cache HIT cid: 7.1.0-commandfiles-2-f17fc6bdab2f74278df75194ca483893 [0.31 sec, 8.63 MB]                                          [debug]
Drush bootstrap phase : bootstrap_drupal_configuration() [0.31 sec, 8.63 MB]                                                  [bootstrap]
Find command files for phase 3 (max=5) [0.31 sec, 8.64 MB]                                                                        [debug]
The drush command 'dc-getauth' could not be found.  Run `drush cache-clear drush` to clear the commandfile cache if you have  [error]
installed new extensions. [0.31 sec, 8.66 MB]
Drush was not able to start (bootstrap) the Drupal database.                                                                  [error]
Hint: This may occur when Drush is trying to:
 * bootstrap a site that has not been installed or does not have a configured database. In this case you can select another
site with a working database setup by specifying the URI to use with the --uri parameter on the command line. See `drush topic
docs-aliases` for details.
 * connect the database through a socket. The socket file may be wrong or the php-cli may have no access to it in a jailed
shell. See http://drupal.org/node/1428638 for details.

Drush was attempting to connect to:
 Drupal version         :  7.43
 Site URI               :  http://default
 PHP executable         :  /usr/bin/php
 PHP configuration      :  /etc/php.ini
 PHP OS                 :  Linux
 Drush script           :  /usr/local/share/drush/drush.php
 Drush version          :  7.1.0
 Drush temp directory   :  /tmp
 Drush configuration    :
 Drush alias files      :
 Drupal root            :  /var/www/html
 Site path              :  sites/default

 [0.46 sec, 11.33 MB]