maintenance/getLagTimes.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @ingroup Maintenance
  19  */
  20
  21 require_once( dirname( __FILE__ ) . '/Maintenance.php' );
  22
  23 class GetLagTimes extends Maintenance {
  24         public function __construct() {
  25                 parent::__construct();
  26                 $this->mDescription = "Dump replication lag times";
  27         }
  28
  29         public function execute() {
  30                 $lb = wfGetLB();
  31
  32                 if ( $lb->getServerCount() == 1 ) {
  33                         $this->error( "This script dumps replication lag times, but you don't seem to have\n"
  34                                                   . "a multi-host db server configuration." );
  35                 } else {
  36                         $lags = $lb->getLagTimes();
  37                         foreach ( $lags as $n => $lag ) {
  38                                 $host = $lb->getServerName( $n );
  39                                 if ( IP::isValid( $host ) ) {
  40                                         $ip = $host;
  41                                         $host = gethostbyaddr( $host );
  42                                 } else {
  43                                         $ip = gethostbyname( $host );
  44                                 }
  45                                 $starLen = min( intval( $lag ), 40 );
  46                                 $stars = str_repeat( '*', $starLen );
  47                                 $this->output( sprintf( "%10s %20s %3d %s\n", $ip, $host, $lag, $stars ) );
  48                         }
  49                 }
  50         }
  51 }
  52
  53 $maintClass = "GetLagTimes";
  54 require_once( DO_MAINTENANCE );