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@sterndata
Last active November 20, 2016 16:49
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Optimize mysql/maria databases
#
# This does NOT work with PHP 7
#
# as a result, I am now using a simple shell script with this one line:
# mysqlcheck -o -A -pmysql_root_password
#
#! /usr/bin/php
<?php
echo '<pre>' . "\n\n";
set_time_limit( 100 );
$time = microtime();
$time = explode(' ', $time);
$time = $time[1] + $time[0];
$start = $time;
//Connection variables :
$h = 'yourhost';
$u = 'yourrootuser';
$p = 'yourrootpassword';
$dummy_db = 'mysql';
/*The php->mysql API needs to connect to a database even when executing scripts like this.
If you got an error from this(permissions),
just replace this with the name of your database*/
$db_link = mysql_connect($h,$u,$p);
$res = mysql_db_query($dummy_db, 'SHOW DATABASES', $db_link) or die('Could not connect: ' . mysql_error());
echo 'Found '. mysql_num_rows( $res ) . ' databases' . "\n";
$dbs = array();
while ( $rec = mysql_fetch_array($res) ) {
$dbs [] = $rec [0];
}
foreach ( $dbs as $db_name ) {
echo "Database : $db_name \n\n";
$res = mysql_db_query($dummy_db, "SHOW TABLE STATUS FROM `" . $db_name . "`", $db_link) or die('Query : ' . mysql_error());
$to_optimize = array();
while ( $rec = mysql_fetch_array($res) ) {
if ( $rec['Data_free'] > 0 ){
$to_optimize [] = $rec['Name'];
echo $rec['Name'] . ' needs optimization' . "\n";
}
}
if ( count ( $to_optimize ) > 0 ) {
foreach ( $to_optimize as $tbl ) {
mysql_db_query($db_name, "OPTIMIZE TABLE `" . $tbl ."`", $db_link );
}
}
}
$time = microtime();
$time = explode(' ', $time);
$time = $time[1] + $time[0];
$finish = $time;
$total_time = round(($finish - $start), 6);
echo 'Parsed in ' . $total_time . ' secs' . "\n\n";
?>
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