00001 <?php 00002 00006 require_once( dirname(__FILE__).'/../commandLine.inc' ); 00007 00008 $stats = new OrphanStats; 00009 $stats->execute(); 00010 00011 class OrphanStats { 00012 function getDB( $cluster ) { 00013 $lb = wfGetLBFactory()->getExternalLB( $cluster ); 00014 return $lb->getConnection( DB_SLAVE ); 00015 } 00016 00017 function execute() { 00018 $extDBs = array(); 00019 $dbr = wfGetDB( DB_SLAVE ); 00020 $res = $dbr->select( 'blob_orphans', '*', false, __METHOD__ ); 00021 00022 $num = 0; 00023 $totalSize = 0; 00024 $hashes = array(); 00025 $maxSize = 0; 00026 00027 foreach ( $res as $boRow ) { 00028 $extDB = $this->getDB( $boRow->bo_cluster ); 00029 $blobRow = $extDB->selectRow( 'blobs', '*', array( 'blob_id' => $boRow->bo_blob_id ), __METHOD__ ); 00030 00031 $num++; 00032 $size = strlen( $blobRow->blob_text ); 00033 $totalSize += $size; 00034 $hashes[ sha1( $blobRow->blob_text ) ] = true; 00035 $maxSize = max( $size, $maxSize ); 00036 } 00037 unset( $res ); 00038 00039 echo "Number of orphans: $num\n"; 00040 if ( $num > 0 ) { 00041 echo "Average size: " . round( $totalSize / $num, 0 ) . " bytes\n" . 00042 "Max size: $maxSize\n" . 00043 "Number of unique texts: " . count( $hashes ) . "\n"; 00044 } 00045 } 00046 }