MediaWiki master
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 $this->setBatchSize( 100 );
38 }
39
40 public function execute() {
41 $type = $this->getOption( 'type' );
42 $action = $this->getOption( 'action' );
43
44 $group = $this->getServiceContainer()->getJobQueueGroup();
45 $queue = $group->get( $type );
46
47 if ( $action === 'delete' ) {
48 $this->delete( $queue );
49 } elseif ( $action === 'repush-abandoned' ) {
50 $this->repushAbandoned( $queue );
51 } else {
52 $this->fatalError( "Invalid action '$action'." );
53 }
54 }
55
56 private function delete( JobQueue $queue ) {
57 $this->output( "Queue has {$queue->getSize()} job(s); deleting...\n" );
58 $queue->delete();
59 $this->output( "Done; current size is {$queue->getSize()} job(s).\n" );
60 }
61
62 private function repushAbandoned( JobQueue $queue ) {
64 $key = $cache->makeGlobalKey( 'last-job-repush', $queue->getDomain(), $queue->getType() );
65
66 $now = wfTimestampNow();
67 $lastRepushTime = $cache->get( $key );
68 if ( $lastRepushTime === false ) {
69 $lastRepushTime = wfTimestamp( TS_MW, 1 ); // include all jobs
70 }
71
72 $this->output( "Last re-push time: $lastRepushTime; current time: $now\n" );
73
74 $count = 0;
75 $skipped = 0;
76 foreach ( $queue->getAllAbandonedJobs() as $job ) {
78 if ( $job instanceof Job && $job->getQueuedTimestamp() < wfTimestamp( TS_UNIX, $lastRepushTime ) ) {
79 ++$skipped;
80 continue; // already re-pushed in prior round
81 }
82
83 $queue->push( $job );
84 ++$count;
85
86 if ( ( $count % $this->getBatchSize() ) == 0 ) {
87 $queue->waitForBackups();
88 }
89 }
90
91 $cache->set( $key, $now ); // next run will ignore these jobs
92
93 $this->output( "Re-pushed $count job(s) [$skipped skipped].\n" );
94 }
95}
96
97$maintClass = ManageJobs::class;
98require_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.
Base class for queueing and running background jobs from a storage backend.
Definition JobQueue.php:43
waitForBackups()
Wait for any replica DBs or backup servers to catch up.
Definition JobQueue.php:601
push( $jobs, $flags=0)
Push one or more jobs into the queue.
Definition JobQueue.php:350
delete()
Delete all unclaimed and delayed jobs from the queue.
Definition JobQueue.php:578
getAllAbandonedJobs()
Get an iterator to traverse over all abandoned jobs in this queue.
Definition JobQueue.php:676
Describe and execute a background job.
Definition Job.php:40
getQueuedTimestamp()
Definition Job.php:206
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
output( $out, $channel=null)
Throw some output to the user.
getServiceContainer()
Returns the main service container.
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.
static getInstance( $id)
Get a cached instance of the specified type of cache object.
$maintClass
if(count( $args)< 1) $job