[Summary view] [Print] [Text view]

   1  <?php
   2  /**
   3   * Reports the hostname of a slave server.
   4   *
   5   * This program is free software; you can redistribute it and/or modify
   6   * it under the terms of the GNU General Public License as published by
   7   * the Free Software Foundation; either version 2 of the License, or
   8   * (at your option) any later version.
   9   *
  10   * This program is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13   * GNU General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU General Public License along
  16   * with this program; if not, write to the Free Software Foundation, Inc.,
  17   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18   * http://www.gnu.org/copyleft/gpl.html
  19   *
  20   * @file
  21   * @ingroup Maintenance
  22   */
  23  
  24  require_once  __DIR__ . '/Maintenance.php';
  25  
  26  /**
  27   * Maintenance script that reports the hostname of a slave server.
  28   *
  29   * @ingroup Maintenance
  30   */
  31  class GetSlaveServer extends Maintenance {
  32  	public function __construct() {
  33          parent::__construct();
  34          $this->addOption( "group", "Query group to check specifically" );
  35          $this->mDescription = "Report the hostname of a slave server";
  36      }
  37  
  38  	public function execute() {
  39          global $wgAllDBsAreLocalhost;
  40          if ( $wgAllDBsAreLocalhost ) {
  41              $host = 'localhost';
  42          } elseif ( $this->hasOption( 'group' ) ) {
  43              $db = wfGetDB( DB_SLAVE, $this->getOption( 'group' ) );
  44              $host = $db->getServer();
  45          } else {
  46              $lb = wfGetLB();
  47              $i = $lb->getReaderIndex();
  48              $host = $lb->getServerName( $i );
  49          }
  50          $this->output( "$host\n" );
  51      }
  52  }
  53  
  54  $maintClass = "GetSlaveServer";
  55  require_once RUN_MAINTENANCE_IF_MAIN;