MediaWiki REL1_37
getReplicaServer.php
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1<?php
24require_once __DIR__ . '/Maintenance.php';
25
27
34 public function __construct() {
35 parent::__construct();
36 $this->addOption( "group", "Query group to check specifically" );
37 $this->addDescription( 'Report the hostname of a replica DB server' );
38 }
39
40 public function execute() {
41 if ( $this->hasOption( 'group' ) ) {
42 $db = $this->getDB( DB_REPLICA, $this->getOption( 'group' ) );
43 $host = $db->getServer();
44 } else {
45 $lb = MediaWikiServices::getInstance()->getDBLoadBalancer();
46 $i = $lb->getReaderIndex();
47 $host = $lb->getServerName( $i );
48 }
49 $this->output( "$host\n" );
50 }
51}
52
53$maintClass = GetReplicaServer::class;
54require_once RUN_MAINTENANCE_IF_MAIN;
getDB()
Maintenance script that reports the hostname of a replica DB server.
execute()
Do the actual work.
__construct()
Default constructor.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
output( $out, $channel=null)
Throw some output to the user.
hasOption( $name)
Checks to see if a particular option was set.
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.
MediaWikiServices is the service locator for the application scope of MediaWiki.
const DB_REPLICA
Definition defines.php:25