MediaWiki REL1_40
manageJobs.php
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1<?php
25
26require_once __DIR__ . '/Maintenance.php';
27
33class ManageJobs extends Maintenance {
34 public function __construct() {
35 parent::__construct();
36 $this->addDescription( 'Perform administrative tasks on a job queue' );
37 $this->addOption( 'type', 'Job type', true, true );
38 $this->addOption( 'action', 'Queue operation ("delete", "repush-abandoned")', true, true );
39 $this->setBatchSize( 100 );
40 }
41
42 public function execute() {
43 $type = $this->getOption( 'type' );
44 $action = $this->getOption( 'action' );
45
46 $group = MediaWikiServices::getInstance()->getJobQueueGroup();
47 $queue = $group->get( $type );
48
49 if ( $action === 'delete' ) {
50 $this->delete( $queue );
51 } elseif ( $action === 'repush-abandoned' ) {
52 $this->repushAbandoned( $queue );
53 } else {
54 $this->fatalError( "Invalid action '$action'." );
55 }
56 }
57
58 private function delete( JobQueue $queue ) {
59 $this->output( "Queue has {$queue->getSize()} job(s); deleting...\n" );
60 $queue->delete();
61 $this->output( "Done; current size is {$queue->getSize()} job(s).\n" );
62 }
63
64 private function repushAbandoned( JobQueue $queue ) {
66 $key = $cache->makeGlobalKey( 'last-job-repush', $queue->getDomain(), $queue->getType() );
67
68 $now = wfTimestampNow();
69 $lastRepushTime = $cache->get( $key );
70 if ( $lastRepushTime === false ) {
71 $lastRepushTime = wfTimestamp( TS_MW, 1 ); // include all jobs
72 }
73
74 $this->output( "Last re-push time: $lastRepushTime; current time: $now\n" );
75
76 $count = 0;
77 $skipped = 0;
78 foreach ( $queue->getAllAbandonedJobs() as $job ) {
80 if ( $job instanceof Job && $job->getQueuedTimestamp() < wfTimestamp( TS_UNIX, $lastRepushTime ) ) {
81 ++$skipped;
82 continue; // already re-pushed in prior round
83 }
84
85 $queue->push( $job );
86 ++$count;
87
88 if ( ( $count % $this->getBatchSize() ) == 0 ) {
89 $queue->waitForBackups();
90 }
91 }
92
93 $cache->set( $key, $now ); // next run will ignore these jobs
94
95 $this->output( "Re-pushed $count job(s) [$skipped skipped].\n" );
96 }
97}
98
99$maintClass = ManageJobs::class;
100require_once RUN_MAINTENANCE_IF_MAIN;
const CACHE_DB
Definition Defines.php:87
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.
Class to handle enqueueing and running of background jobs.
Definition JobQueue.php:39
waitForBackups()
Wait for any replica DBs or backup servers to catch up.
Definition JobQueue.php:604
push( $jobs, $flags=0)
Push one or more jobs into the queue.
Definition JobQueue.php:353
delete()
Delete all unclaimed and delayed jobs from the queue.
Definition JobQueue.php:581
getAllAbandonedJobs()
Get an iterator to traverse over all abandoned jobs in this queue.
Definition JobQueue.php:679
Class to both describe a background job and handle jobs.
Definition Job.php:39
getQueuedTimestamp()
Definition Job.php:204
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.
setBatchSize( $s=0)
fatalError( $msg, $exitCode=1)
Output a message and terminate the current script.
Maintenance script that handles managing job queue admin tasks (re-push, delete, ....
execute()
Do the actual work.
__construct()
Default constructor.
Service locator for MediaWiki core services.
static getInstance( $id)
Get a cached instance of the specified type of cache object.
$maintClass
if(count( $args)< 1) $job