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   1  <?php
   2  /**
   3   * Display replication lag times.
   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 displays replication lag times.
  28   *
  29   * @ingroup Maintenance
  30   */
  31  class GetLagTimes extends Maintenance {
  32  	public function __construct() {
  33          parent::__construct();
  34          $this->mDescription = "Dump replication lag times";
  35      }
  36  
  37  	public function execute() {
  38          $lb = wfGetLB();
  39  
  40          if ( $lb->getServerCount() == 1 ) {
  41              $this->error( "This script dumps replication lag times, but you don't seem to have\n"
  42                  . "a multi-host db server configuration." );
  43          } else {
  44              $lags = $lb->getLagTimes();
  45              foreach ( $lags as $n => $lag ) {
  46                  $host = $lb->getServerName( $n );
  47                  if ( IP::isValid( $host ) ) {
  48                      $ip = $host;
  49                      $host = gethostbyaddr( $host );
  50                  } else {
  51                      $ip = gethostbyname( $host );
  52                  }
  53                  $starLen = min( intval( $lag ), 40 );
  54                  $stars = str_repeat( '*', $starLen );
  55                  $this->output( sprintf( "%10s %20s %3d %s\n", $ip, $host, $lag, $stars ) );
  56              }
  57          }
  58      }
  59  }
  60  
  61  $maintClass = "GetLagTimes";
  62  require_once RUN_MAINTENANCE_IF_MAIN;