be3c297852
Correct the join conditions used to find the current edit count for
a batch of users. Follows up b98f33c where the incorrect join order and
conditions were introduced as part of migration to QueryBuilder syntax.
Change-Id: I1841bb074b0f2be31e60a3cce3d62eb1b5999ad0
(cherry picked from commit 834891e01afa19cc1ecd973c04a453a9abb2d484)
126 lines
4.2 KiB
PHP
126 lines
4.2 KiB
PHP
<?php
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/**
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* Init the user_editcount database field based on the number of rows in the
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* revision table.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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// @codeCoverageIgnoreStart
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require_once __DIR__ . '/Maintenance.php';
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// @codeCoverageIgnoreEnd
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use MediaWiki\WikiMap\WikiMap;
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use Wikimedia\Rdbms\IDatabase;
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use Wikimedia\Rdbms\RawSQLValue;
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class InitEditCount extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addOption( 'quick', 'Force the update to be done in a single query' );
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$this->addOption( 'background', 'Force replication-friendly mode; may be inefficient but avoids'
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. 'locking tables or lagging replica DBs with large updates; calculates counts on a replica DB'
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. 'if possible. Background mode will be automatically used if multiple servers are listed in the'
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. 'load balancer, usually indicating a replication environment.' );
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$this->addDescription( 'Batch-recalculate user_editcount fields from the revision table' );
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}
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public function execute() {
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$dbw = $this->getPrimaryDB();
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// Autodetect mode...
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if ( $this->hasOption( 'background' ) ) {
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$backgroundMode = true;
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} elseif ( $this->hasOption( 'quick' ) ) {
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$backgroundMode = false;
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} else {
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$lb = $this->getServiceContainer()->getDBLoadBalancer();
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$backgroundMode = $lb->hasReplicaServers();
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}
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if ( $backgroundMode ) {
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$this->output( "Using replication-friendly background mode...\n" );
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$dbr = $this->getReplicaDB();
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$chunkSize = 100;
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$lastUser = $dbr->newSelectQueryBuilder()
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->select( 'MAX(user_id)' )
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->from( 'user' )
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->caller( __METHOD__ )->fetchField();
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$start = microtime( true );
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$migrated = 0;
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for ( $min = 0; $min <= $lastUser; $min += $chunkSize ) {
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$max = $min + $chunkSize;
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$result = $dbr->newSelectQueryBuilder()
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->select( [ 'user_id', 'user_editcount' => "COUNT(actor_rev_user.actor_user)" ] )
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->from( 'user' )
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->join( 'actor', 'actor_rev_user', 'user_id = actor_rev_user.actor_user' )
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->leftJoin( 'revision', 'rev', 'actor_rev_user.actor_id = rev.rev_actor' )
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->where( $dbr->expr( 'user_id', '>', $min )->and( 'user_id', '<=', $max ) )
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->groupBy( 'user_id' )
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->caller( __METHOD__ )->fetchResultSet();
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foreach ( $result as $row ) {
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$dbw->newUpdateQueryBuilder()
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->update( 'user' )
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->set( [ 'user_editcount' => $row->user_editcount ] )
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->where( [ 'user_id' => $row->user_id ] )
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->caller( __METHOD__ )->execute();
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++$migrated;
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}
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$delta = microtime( true ) - $start;
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$rate = ( $delta == 0.0 ) ? 0.0 : $migrated / $delta;
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$this->output( sprintf( "%s %d (%0.1f%%) done in %0.1f secs (%0.3f accounts/sec).\n",
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WikiMap::getCurrentWikiDbDomain()->getId(),
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$migrated,
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min( $max, $lastUser ) / $lastUser * 100.0,
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$delta,
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$rate ) );
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$this->waitForReplication();
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}
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} else {
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$this->output( "Using single-query mode...\n" );
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$subquery = $dbw->newSelectQueryBuilder()
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->select( 'COUNT(*)' )
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->from( 'revision' )
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->join( 'actor', 'actor_rev_user', 'actor_rev_user.actor_id = rev_actor' )
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->where( 'user_id = actor_rev_user.actor_user' )
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->caller( __METHOD__ )->getSQL();
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$dbw->newUpdateQueryBuilder()
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->table( 'user' )
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->set( [ 'user_editcount' => new RawSQLValue( "($subquery)" ) ] )
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->where( IDatabase::ALL_ROWS )
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->caller( __METHOD__ )
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->execute();
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}
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$this->output( "Done!\n" );
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}
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}
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// @codeCoverageIgnoreStart
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$maintClass = InitEditCount::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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// @codeCoverageIgnoreEnd
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