MediaWiki REL1_34
manageJobs.php
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1<?php
24require_once __DIR__ . '/Maintenance.php';
25
31class ManageJobs extends Maintenance {
32 public function __construct() {
33 parent::__construct();
34 $this->addDescription( 'Perform administrative tasks on a job queue' );
35 $this->addOption( 'type', 'Job type', true, true );
36 $this->addOption( 'action', 'Queue operation ("delete", "repush-abandoned")', true, true );
37 }
38
39 public function execute() {
40 $type = $this->getOption( 'type' );
41 $action = $this->getOption( 'action' );
42
43 $group = JobQueueGroup::singleton();
44 $queue = $group->get( $type );
45
46 if ( $action === 'delete' ) {
47 $this->delete( $queue );
48 } elseif ( $action === 'repush-abandoned' ) {
49 $this->repushAbandoned( $queue );
50 } else {
51 $this->fatalError( "Invalid action '$action'." );
52 }
53 }
54
55 private function delete( JobQueue $queue ) {
56 $this->output( "Queue has {$queue->getSize()} job(s); deleting...\n" );
57 $queue->delete();
58 $this->output( "Done; current size is {$queue->getSize()} job(s).\n" );
59 }
60
61 private function repushAbandoned( JobQueue $queue ) {
62 $cache = ObjectCache::getInstance( CACHE_DB );
63 $key = $cache->makeGlobalKey( 'last-job-repush', $queue->getDomain(), $queue->getType() );
64
65 $now = wfTimestampNow();
66 $lastRepushTime = $cache->get( $key );
67 if ( $lastRepushTime === false ) {
68 $lastRepushTime = wfTimestamp( TS_MW, 1 ); // include all jobs
69 }
70
71 $this->output( "Last re-push time: $lastRepushTime; current time: $now\n" );
72
73 $count = 0;
74 $skipped = 0;
75 foreach ( $queue->getAllAbandonedJobs() as $job ) {
77 if ( $job->getQueuedTimestamp() < wfTimestamp( TS_UNIX, $lastRepushTime ) ) {
78 ++$skipped;
79 continue; // already re-pushed in prior round
80 }
81
82 $queue->push( $job );
83 ++$count;
84
85 if ( ( $count % $this->getBatchSize() ) == 0 ) {
86 $queue->waitForBackups();
87 }
88 }
89
90 $cache->set( $key, $now ); // next run will ignore these jobs
91
92 $this->output( "Re-pushed $count job(s) [$skipped skipped].\n" );
93 }
94}
95
96$maintClass = ManageJobs::class;
97require_once RUN_MAINTENANCE_IF_MAIN;
wfTimestampNow()
Convenience function; returns MediaWiki timestamp for the present time.
wfTimestamp( $outputtype=TS_UNIX, $ts=0)
Get a timestamp string in one of various formats.
const RUN_MAINTENANCE_IF_MAIN
Class to handle enqueueing and running of background jobs.
Definition JobQueue.php:31
waitForBackups()
Wait for any replica DBs or backup servers to catch up.
Definition JobQueue.php:570
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
output( $out, $channel=null)
Throw some output to the user.
getBatchSize()
Returns batch size.
addDescription( $text)
Set the description text.
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
getOption( $name, $default=null)
Get an option, or return the default.
fatalError( $msg, $exitCode=1)
Output a message and terminate the current script.
Maintenance script that handles managing job queue admin tasks (re-push, delete, ....
repushAbandoned(JobQueue $queue)
execute()
Do the actual work.
__construct()
Default constructor.
const CACHE_DB
Definition Defines.php:92
$maintClass
$cache
Definition mcc.php:33
if(count( $args)< 1) $job