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Auto Optimize Your MySQL Tables Script

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Baal Veer
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Posts: 114
Joined: Fri Jul 06, 2018 10:29 am
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Auto Optimize Your MySQL Tables Script


Post by Baal Veer » Fri Sep 21, 2018 3:23 pm

In my quest to make our clients MySQL driven ecommerce websites running fast, I've pieced together a script and cron job that will save you some support calls down the road.
Step 1: Create a PHP optimize script
// Change vars as needed here

$server = "localhost";

$user = "mysql_user";

$pwd = "mysql_password";

$dbName = "mysql_dbName";

$link = mysql_connect($server, $user, $pwd);

if (!$link) {
die('Could not connect: ' . mysql_error());
$db_selected = mysql_select_db($dbName, $link);

if (!$db_selected) {
die ('Can\'t use $dbName : ' . mysql_error());
// Find all tables in the selected DB

$alltables = mysql_query("SHOW TABLES");

// Process all tables.

while ($table = mysql_fetch_assoc($alltables))

foreach ($table as $db => $tablename)
// Optimize them!

mysql_query("OPTIMIZE TABLE '".$tablename."'")

or die(mysql_error());

Step 2: Add this script into your daily cron jobs
Most popular Linux distros will have a /etc/cron.daily directory. Login as root and follow these steps to add your new website optimization script to your daily cron directory, thus never having to worry about manually optimizating again!
cd /etc/cron.daily

echo '#!/bin/sh' > mysql_optimize; echo '/path/to/your/script.php' >> mysql_optimize; chmod 755 mysql_optimize;
Now your all set! A quick and easy way to keep your high volume MySQL driven websites optimized!
We have found this script/cron to be very valuable with our high load web design projects that use large MySQL tables. It is most effective on tables that get updated a lot (with deletions and inserts).

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