Magento 1.8 Maintenance – Randomly Entering Maintenance Mode

magento-1.8maintenance

I'm on magento 1.8 and have a really strange thing happening at 5am every morning… a maintenance.flag appears in my root folder, putting the site into maintenance mode…

I have tried changing all the passwords etc but it still happens. In the access logs, all I can see is the cron.php (which runs every minute) running at a few seconds after 5am

I've also checked the error logs etc, no idea what is causing this. I've also changed FTP password and root passwords for the server.

Also what happens is I get the attached error when I try to access admin. I restart SQL and it starts working again…

enter image description here

Best Answer

Based on the comments...
The backup scheduled to run every night puts the website on maintenance mode.
You can configure it not to do so from System->Configuration->System->Scheduled Backup Settings->Maintenance Mode. Set that field to No.
But this will solve only half of the problem.

The backup process should remove the maintenance mode once it is finished.
You problem is that the process does not finish.
There is some deadlock database and you end up with the 2 issues:

the maintenance flag is not removed
your application cannot connect to the db and you have to restart the mysql service.

My advice is to think of a different backup strategy, or try to identify what is causing the deadlock....or you can always throw blindly more hardware at your server.

Sorry but that's all I can come up with right now. My sysadmin skills are barely reaching zero.

Related Solutions

Magento – 1.9.0.1 Maintenance Mode

Magento goes to maintenance mode when you create a file named maintenance.flag to your Magento home directory. This is how Magento handles it:

$maintenanceFile = 'maintenance.flag';

if (file_exists($maintenanceFile)) {
    include_once dirname(__FILE__) . '/errors/503.php';
    exit;
}

Magento – Maintenance mode without maintenance.flag

The Maintenance mode is just an include of the "503.php" which is located in the errors directory of your Magento installation. There exist only two possibilities when this file is going to be included:

the maintenance.flag file exists in the root directory of your magento installation (see index.php)
you are using Redis and expired the maximum of concurrency connections

As you already mentioned, none of these cases match your problem.

Maybe an extension will raise the maintenance mode by including the errors/503.php of the errors directory. Please search all your (custom) code for "503.php". It is possible that some of your extensions need another resource which is not present.

Best Answer

Related Solutions

Magento – 1.9.0.1 Maintenance Mode

Magento – Maintenance mode without maintenance.flag

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