Created
July 12, 2013 09:53
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This script will fetch a list of all InnoDB tables from MySQL and check if they are in separate files (as per innodb_file_per_table setting) or still in the ibdata1 file (which always grows, but never shrinks). So you can decide whether to do a cleanup (http://stackoverflow.com/questions/3927690/howto-clean-a-mysql-innodb-storage-engine) or not.
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<?php | |
if (posix_getuid() != 0) { | |
echo 'Run as root!' . PHP_EOL; | |
exit(1); | |
} | |
$mysql_host = 'localhost'; | |
$mysql_port = '3309'; | |
$mysql_user = 'username'; | |
$mysql_password = 'password'; | |
$mysql_dir = '/var/lib/mysql'; | |
echo 'Querying MySQL.'; | |
$pdo = new PDO('mysql:host=' . $mysql_host . ';port=' . $mysql_port . ';dbname=information_schema', $mysql_user, $mysql_password); | |
echo '.'; | |
$sql = 'SELECT table_schema, table_name, engine FROM information_schema.tables WHERE engine="InnoDB"'; | |
$stmt = $pdo->prepare($sql); | |
echo '.'; | |
$stmt->execute(); | |
echo '.'; | |
$data = $stmt->fetchAll(PDO::FETCH_ASSOC); | |
echo ' OK' . PHP_EOL; | |
$tbl_file = 0; | |
$tbl_ibdt = 0; | |
foreach ($data as $table) { | |
$filename = $mysql_dir . DIRECTORY_SEPARATOR . encode_filename($table['table_schema']) . DIRECTORY_SEPARATOR . encode_filename($table['table_name']) . '.ibd'; | |
if (!file_exists($filename)) { | |
$tbl_ibdt++; | |
echo 'ibdata: ' . $table['table_schema'] . '.' . $table['table_name'] . PHP_EOL; | |
} else { | |
$tbl_file++; | |
} | |
} | |
echo 'innodb_file_per_table : ' . $tbl_file . PHP_EOL; | |
echo 'Tables in ibdata1 file: ' . $tbl_ibdt . PHP_EOL; | |
function encode_filename($mysql_name) | |
{ | |
$result = str_replace('.', '@002e', $mysql_name); | |
return $result; | |
} |
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