WordPress遷移問題503錯誤

Question

最近，我修改了在開發服務器上創建的網站。 然后，我開始將其遷移到主服務器上。 最初，我在實時服務器上上傳數據庫時遇到unicode錯誤。 我用它搜索了一下，發現了堆棧溢出本身的解決方案（ ＃1273 –未知歸類：'utf8mb4_unicode_520_ci' ）。 我使用了sabba建議的方法，並且有效。 稍后當我更改配置文件並加載該鏈接時。 它給了我503錯誤。錯誤如下：

暫停服務

由於維護停機或容量問題，服務器暫時無法滿足您的請求。 請稍后再試。

此外，嘗試使用錯誤文檔來處理請求時，遇到503服務不可用錯誤。

Answer 1

按照步驟進行檢查，

啟用WP_DEBUG

But since the 503 error often locks you out of your WordPress admin, we shall use WP_DEBUG and WP_DEBUG_LOG, WP_DEBUG_DISPLAY and @ini_set constants available to WordPress.

To enable debug mode in WordPress and write errors to a log file,  follow these steps:    

 1. Open the wp-config.php file
 2. Scroll down to where WP_DEBUG is defined. It looks like this define ('WP_DEBUG', false);. If it is missing, we will add it just above the line that says /*That's all, stop editing! Happy blogging.*/

 3. Insert the DEBUG magic codes. Just change the above define ('WP_DEBUG', false); code to:
    define ('WP_DEBUG', true);
    define ('WP_DEBUG_LOG', true);
    define ('WP_DEBUG_DISPLAY', false);
    @ini_set ('display_errors', 0);

 4. Save changes

Now, reload your site to provoke the error. Next, locate a file known as debug.log inside your wp-content folder in your WordPress directory.

This file contains all the errors on your website. If your 503 service unavailable error is caused by a custom code snippet, it will show up somewhere with details of the error.

Eliminate/replace the problematic code and reload your site. If the 503 error persists, the problem could lie in your web server.