3 * Reports the hostname of a replica DB server.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 * http://www.gnu.org/copyleft/gpl.html
21 * @ingroup Maintenance
24 require_once __DIR__
. '/Maintenance.php';
26 use MediaWiki\MediaWikiServices
;
29 * Maintenance script that reports the hostname of a replica DB server.
31 * @ingroup Maintenance
33 class GetSlaveServer
extends Maintenance
{
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' );
40 public function execute() {
41 global $wgAllDBsAreLocalhost;
42 if ( $wgAllDBsAreLocalhost ) {
44 } elseif ( $this->hasOption( 'group' ) ) {
45 $db = $this->getDB( DB_REPLICA
, $this->getOption( 'group' ) );
46 $host = $db->getServer();
48 $lb = MediaWikiServices
::getInstance()->getDBLoadBalancer();
49 $i = $lb->getReaderIndex();
50 $host = $lb->getServerName( $i );
52 $this->output( "$host\n" );
56 $maintClass = GetSlaveServer
::class;
57 require_once RUN_MAINTENANCE_IF_MAIN
;