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<?php
/**
* 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
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance ExternalStorage
*/
require_once( dirname( __FILE__ ) . '/../Maintenance.php' );
class StorageTypeStats extends Maintenance {
function execute() {
$dbr = wfGetDB( DB_SLAVE );
$endId = $dbr->selectField( 'text', 'MAX(old_id)', false, __METHOD__ );
if ( !$endId ) {
echo "No text rows!\n";
exit( 1 );
}
$binSize = intval( pow( 10, floor( log10( $endId ) ) - 3 ) );
if ( $binSize < 100 ) {
$binSize = 100;
}
echo "Using bin size of $binSize\n";
$stats = array();
$classSql = <<<SQL
IF(old_flags LIKE '%external%',
IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+/[0-9a-f]{32}$',
'CGZ pointer',
IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+/[0-9]{1,6}$',
'DHB pointer',
IF(old_text REGEXP '^DB://[[:alnum:]]+/[0-9]+$',
'simple pointer',
'UNKNOWN pointer'
)
)
),
IF(old_flags LIKE '%object%',
TRIM('"' FROM SUBSTRING_INDEX(SUBSTRING_INDEX(old_text, ':', 3), ':', -1)),
'[none]'
)
)
SQL;
for ( $rangeStart = 0; $rangeStart < $endId; $rangeStart += $binSize ) {
if ( $rangeStart / $binSize % 10 == 0 ) {
echo "$rangeStart\r";
}
$res = $dbr->select(
'text',
array(
'old_flags',
"$classSql AS class",
'COUNT(*) as count',
),
array(
'old_id >= ' . intval( $rangeStart ),
'old_id < ' . intval( $rangeStart + $binSize )
),
__METHOD__,
array( 'GROUP BY' => 'old_flags, class' )
);
foreach ( $res as $row ) {
$flags = $row->old_flags;
if ( $flags === '' ) {
$flags = '[none]';
}
$class = $row->class;
$count = $row->count;
if ( !isset( $stats[$flags][$class] ) ) {
$stats[$flags][$class] = array(
'count' => 0,
'first' => $rangeStart,
'last' => 0
);
}
$entry =& $stats[$flags][$class];
$entry['count'] += $count;
$entry['last'] = max( $entry['last'], $rangeStart + $binSize );
unset( $entry );
}
}
echo "\n\n";
$format = "%-29s %-39s %-19s %-29s\n";
printf( $format, "Flags", "Class", "Count", "old_id range" );
echo str_repeat( '-', 120 ) . "\n";
foreach ( $stats as $flags => $flagStats ) {
foreach ( $flagStats as $class => $entry ) {
printf( $format, $flags, $class, $entry['count'],
sprintf( "%-13d - %-13d", $entry['first'], $entry['last'] ) );
}
}
}
}
$maintClass = 'StorageTypeStats';
require_once( RUN_MAINTENANCE_IF_MAIN );
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