<?php
/**
+ * Fix erroneous page_latest values due to slave desynchronisation.
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
+ * @file
* @ingroup Maintenance
*/
require_once( dirname( __FILE__ ) . '/Maintenance.php' );
+/**
+ * Maintenance script that fixes erroneous page_latest values
+ * due to slave desynchronisation.
+ *
+ * @ingroup Maintenance
+ */
class FixSlaveDesync extends Maintenance {
public function __construct() {
parent::__construct();
private function desyncFixPage( $pageID ) {
# Check for a corrupted page_latest
$dbw = wfGetDB( DB_MASTER );
- $dbw->begin();
+ $dbw->begin( __METHOD__ );
$realLatest = $dbw->selectField( 'page', 'page_latest', array( 'page_id' => $pageID ),
__METHOD__, 'FOR UPDATE' );
# list( $masterFile, $masterPos ) = $dbw->getMasterPos();
/*
if ( !$db->masterPosWait( $masterFile, $masterPos, 10 ) ) {
$this->output( "Slave is too lagged, aborting\n" );
- $dbw->commit();
+ $dbw->commit( __METHOD__ );
sleep(10);
return;
}*/
}
if ( !$found ) {
$this->output( "page_id $pageID seems fine\n" );
- $dbw->commit();
+ $dbw->commit( __METHOD__ );
return;
}
$masterIDs[] = $row->rev_id;
}
- $res = $db->select( 'revision', array( 'rev_id' ), array( 'rev_page' => $pageID ), __METHOD__ );
+ $res = $dbw->select( 'revision', array( 'rev_id' ), array( 'rev_page' => $pageID ), __METHOD__ );
$slaveIDs = array();
foreach ( $res as $row ) {
$slaveIDs[] = $row->rev_id;
$missingIDs = array_diff( $slaveIDs, $masterIDs );
if ( count( $missingIDs ) ) {
$this->output( "Found " . count( $missingIDs ) . " lost in master, copying from slave... " );
- $dbFrom = $db;
+ $dbFrom = $dbw;
$found = true;
$toMaster = true;
} else {
}
$this->output( "done\n" );
}
- $dbw->commit();
+ $dbw->commit( __METHOD__ );
}
}