WordPress提示Briefly unavailable for scheduled maintenance. Check back in a minute解决办法

Today, while updating a WordPress Plugin, I was prompted with „Briefly unavailable for scheduled maintenance. Check back in a minute„, which translates to “正在执行例行维护，请一分钟后回来„ in Chinese, and the entire website became inaccessible. Since this isn“t the first time I„ve encountered this issue, solving it was straightforward.

Methods to Solve „Briefly unavailable for scheduled maintenance. Check back in a minute“

The root cause of this prompt is that WordPress automatically generates a .maintenance file during the upgrade process to prevent website access while upgrading. This file is automatically deleted upon successful upgrade. However, if the upgrade fails, the .maintenance file may not be deleted automatically. The issue can be resolved by manually deleting this file.

Method 1: Delete via SSH command

Via SSH command, navigate to your website's root directory, then enter `rm -rf .maintenance`. If you are unfamiliar with managing servers via SSH, please refer to:#WebsiteBuilding# Xshell 6 Basic Tutorial: Connecting to VPS

Method 2: Delete via Baota Panel file function

Log in to the Baota Panel backend, click on your website's folder, locate the .maintenance file, and delete it. Forgot the Baota Panel backend address? See:What to do if you forget the Baota Panel backend login URL

Method 3: Delete the .maintenance file via FTP

Open your FTP software (FileZilla, a free FTP client, is recommended), log in to your website's root directory, locate the .maintenance file, and delete it.

Method 4: Modify the wp-activate.php file

If you cannot find the .maintenance file mentioned above, you can try this method. Locate the `wp-activate.php` file in the website root directory. You can modify it via SSH or download it via FTP to edit locally. On line 9, change `define( 'WP_INSTALLING', true );` to: `define( 'WP_INSTALLING', false);`. Then upload the file and refresh the website to restore normal access.

Manual WordPress Update Method

If you need to manually update WordPress, please refer to the previous article:Tutorial on Manually Upgrading WordPress Version. For upgrading plugins, you can directly download the new version's plugin zip file, extract it, and upload it to overwrite the old plugin. Alternatively, you can delete the old plugin in the backend and reinstall the new plugin by uploading the zip file.