maintenance/runJobs.php

   1 <?php
   2 /**
   3  * This script starts pending jobs.
   4  *
   5  * Usage:
   6  *  --maxjobs <num> (default 10000)
   7  *  --type <job_cmd>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @ingroup Maintenance
  25  */
  26
  27 require_once( dirname(__FILE__) . '/Maintenance.php' );
  28
  29 class RunJobs extends Maintenance {
  30         public function __construct() {
  31                 parent::__construct();
  32                 $this->mDescription = "Run pending jobs";
  33                 $this->addOption( 'maxjobs', 'Maximum number of jobs to run', false, true );
  34                 $this->addOption( 'type', 'Type of job to run', false, true );
  35                 $this->addOption( 'procs', 'Number of processes to use', false, true );
  36         }
  37
  38         public function memoryLimit() {
  39                 // Don't eat all memory on the machine if we get a bad job.
  40                 return "150M";
  41         }
  42
  43         public function execute() {
  44                 global $wgTitle;
  45                 if ( $this->hasOption( 'procs' ) ) {
  46                         $procs = intval( $this->getOption('procs') );
  47                         if ( $procs < 1 || $procs > 1000 ) {
  48                                 $this->error( "Invalid argument to --procs", true );
  49                         }
  50                         $fc = new ForkController( $procs );
  51                         if ( $fc->start( $procs ) != 'child' ) {
  52                                 exit( 0 );
  53                         }
  54                 }
  55                 $maxJobs = $this->getOption( 'maxjobs', 10000 );
  56                 $type = $this->getOption( 'type', false );
  57                 $wgTitle = Title::newFromText( 'RunJobs.php' );
  58                 $dbw = wfGetDB( DB_MASTER );
  59                 $n = 0;
  60                 $conds = '';
  61                 if ($type !== false)
  62                         $conds = "job_cmd = " . $dbw->addQuotes($type);
  63
  64                 while ( $dbw->selectField( 'job', 'job_id', $conds, 'runJobs.php' ) ) {
  65                         $offset=0;
  66                         for (;;) {
  67                                 $job = ($type == false) ?
  68                                                 Job::pop($offset)
  69                                                 : Job::pop_type($type);
  70
  71                                 if ($job == false)
  72                                         break;
  73
  74                                 wfWaitForSlaves( 5 );
  75                                 $t = microtime( true );
  76                                 $offset=$job->id;
  77                                 $status = $job->run();
  78                                 $t = microtime( true ) - $t;
  79                                 $timeMs = intval( $t * 1000 );
  80                                 if ( !$status ) {
  81                                         $this->runJobsLog( $job->toString() . " t=$timeMs error={$job->error}" );
  82                                 } else {
  83                                         $this->runJobsLog( $job->toString() . " t=$timeMs good" );
  84                                 }
  85                                 if ( $maxJobs && ++$n > $maxJobs ) {
  86                                         break 2;
  87                                 }
  88                         }
  89                 }
  90         }
  91
  92         /**
  93          * Log the job message
  94          * @param $msg String The message to log
  95          */
  96         private function runJobsLog( $msg ) {
  97                 $this->output( wfTimestamp( TS_DB ) . " $msg\n" );
  98                 wfDebugLog( 'runJobs', $msg );
  99         }
 100 }
 101
 102 $maintClass = "RunJobs";
 103 require_once( DO_MAINTENANCE );