e7393b3cc7
Why: * Maintenance scripts in core have bolierplate code that is added before and after the class to allow directly running the maintenance script. * Running the maintenance script directly has been deprecated since 1.40, so this boilerplate code is only to support a now deprecated method of running maintenance scripts. * This code cannot also be marked as covered, due to PHPUnit not recognising code coverage for files. * Therefore, it is best to ignore this boilerplate code in code coverage reports as it cannot be marked as covered and also is for deprecated code. What: * Wrap the boilerplate code (requiring Maintenance.php and then later defining the maintenance script class and running if the maintenance script was called directly) with @codeCoverageIgnore comments. * Some files use a different boilerplate code, however, these should also be marked as ignored for coverage for the same reason that coverage is not properly reported for files. Bug: T371167 Change-Id: I32f5c6362dfb354149a48ce9c28da9a7fc494f7c
91 lines
2.8 KiB
PHP
91 lines
2.8 KiB
PHP
<?php
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/**
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* Show some statistics on the blob_orphans table, created with trackBlobs.php.
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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 ExternalStorage
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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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/**
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* Maintenance script that shows some statistics on the blob_orphans table,
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* created with trackBlobs.php.
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*
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* @ingroup Maintenance ExternalStorage
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*/
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class OrphanStats extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription(
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"Show some statistics on the blob_orphans table, created with trackBlobs.php" );
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}
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protected function getExternalDB( $db, $cluster ) {
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$lbFactory = $this->getServiceContainer()->getDBLoadBalancerFactory();
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$lb = $lbFactory->getExternalLB( $cluster );
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return $lb->getMaintenanceConnectionRef( $db );
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}
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public function execute() {
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if ( !$this->getDB( DB_PRIMARY )->tableExists( 'blob_orphans', __METHOD__ ) ) {
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$this->fatalError( "blob_orphans doesn't seem to exist, need to run trackBlobs.php first" );
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}
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$dbr = $this->getReplicaDB();
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$res = $dbr->newSelectQueryBuilder()
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->select( '*' )
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->from( 'blob_orphans' )
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->caller( __METHOD__ )->fetchResultSet();
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$num = 0;
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$totalSize = 0;
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$hashes = [];
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$maxSize = 0;
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foreach ( $res as $row ) {
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$extDB = $this->getExternalDB( DB_REPLICA, $row->bo_cluster );
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$blobRow = $extDB->newSelectQueryBuilder()
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->select( '*' )
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->from( 'blobs' )
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->where( [ 'blob_id' => $row->bo_blob_id ] )
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->caller( __METHOD__ )->fetchRow();
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$num++;
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$size = strlen( $blobRow->blob_text );
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$totalSize += $size;
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$hashes[sha1( $blobRow->blob_text )] = true;
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$maxSize = max( $size, $maxSize );
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}
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unset( $res );
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$this->output( "Number of orphans: $num\n" );
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if ( $num > 0 ) {
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$this->output( "Average size: " . round( $totalSize / $num, 0 ) . " bytes\n" .
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"Max size: $maxSize\n" .
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"Number of unique texts: " . count( $hashes ) . "\n" );
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}
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}
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}
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// @codeCoverageIgnoreStart
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$maintClass = OrphanStats::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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// @codeCoverageIgnoreEnd
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