在 Google App Engine 上运行 Wordpress 时出现数据库错误答案

【问题标题】：Database errors when running Wordpress on Google App Engine在 Google App Engine 上运行 Wordpress 时出现数据库错误
【发布时间】：2013-10-02 07:47:35
【问题描述】：

我正在尝试在我的 PHP 运行时列入白名单的 Google App Engine 应用程序上运行 Wordpress。我根据this article 中的说明创建了一个名为“wordpress”的模块并安装了 Wordpress 3.6.1（荷兰语）。（更新：我尝试了 Wordpress 2.5.1 英语、2.6 荷兰语和 2.6.1 荷兰语。所有版本都收到相同的错误消息。）

它在我的本地开发环境中没有问题，但在 Google App Engine 上的生产环境中却没有。当我转到http://www.mydomain.com/wordpress/ 时，它会重定向到http://www.mydomain.com/wordpress/wp-admin/install.php。在 Wordpress 模块的 App Engine 日志中，我收到这些消息（“databasefout”表示“数据库错误”）：

E 2013-10-02 09:23:33.030
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query SELECT option_value FROM wp_options WHERE option_name = 'siteurl' LIMIT 1 gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), wp_plugin_directory_constants, get_option
...
E 2013-10-02 09:23:33.506
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query SELECT option_value FROM wp_options WHERE option_name = 'cron' LIMIT 1 gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, wp_schedule_update_checks, wp_next_scheduled, _get_cron_array, get_option
E 2013-10-02 09:23:33.511
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query INSERT INTO `wp_options` (`option_name`, `option_value`, `autoload`) VALUES ('cron', 'a:2:{i:1380698613;a:1:{s:16:\"wp_version_check\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}}s:7:\"version\";i:2;}', 'yes') ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`) gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, wp_schedule_update_checks, wp_schedule_event, _set_cron_array, update_option, add_option
E 2013-10-02 09:23:33.513
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query UPDATE `wp_options` SET `option_value` = 'a:2:{i:1380698613;a:2:{s:16:\"wp_version_check\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}s:17:\"wp_update_plugins\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}}s:7:\"version\";i:2;}' WHERE `option_name` = 'cron' gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, wp_schedule_update_checks, wp_schedule_event, _set_cron_array, update_option
E 2013-10-02 09:23:33.515
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query UPDATE `wp_options` SET `option_value` = 'a:2:{i:1380698613;a:3:{s:16:\"wp_version_check\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}s:17:\"wp_update_plugins\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}s:16:\"wp_update_themes\";a:1:{s:32:\"40cd750bba9870f18aada2478b24840a\";a:3:{s:8:\"schedule\";s:10:\"twicedaily\";s:4:\"args\";a:0:{}s:8:\"interval\";i:43200;}}}s:7:\"version\";i:2;}' WHERE `option_name` = 'cron' gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, wp_schedule_update_checks, wp_schedule_event, _set_cron_array, update_option
E 2013-10-02 09:23:33.516
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query SELECT option_value FROM wp_options WHERE option_name = 'theme_switched' LIMIT 1 gemaakt door require('wp-blog-header.php'), require_once('wp-load.php'), require_once('wp-config.php'), require_once('wp-settings.php'), do_action('init'), call_user_func_array, check_theme_switched, get_option
E 2013-10-02 09:23:33.518
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query SELECT option_value FROM wp_options WHERE option_name = 'rewrite_rules' LIMIT 1 gemaakt door require('wp-blog-header.php'), wp, WP->main, WP->parse_request, WP_Rewrite->wp_rewrite_rules, get_option
...
E 2013-10-02 09:23:33.530
WordPress databasefout Table 'wordpress_db.wp_options' doesn't exist bij query SELECT option_value FROM wp_options WHERE option_name = 'sticky_posts' LIMIT 1 gemaakt door require('wp-blog-header.php'), wp, WP->main, WP->query_posts, WP_Query->query, WP_Query->get_posts, get_option

我的 Google Cloud SQL 实例上的数据库 wordpress_db 仍然是空的（没有表）。我的 MySQL 用户拥有以下权限：

GRANTEE
TABLE_CATALOG
TABLE_SCHEMA
PRIVILEGE_TYPE
IS_GRANTABLE
'wp_user'@'localhost'
def
wordpress_db
SELECT
NO
'wp_user'@'localhost'
def
wordpress_db
INSERT
NO
'wp_user'@'localhost'
def
wordpress_db
UPDATE
NO
'wp_user'@'localhost'
def
wordpress_db
DELETE
NO
'wp_user'@'localhost'
def
wordpress_db
CREATE
NO
'wp_user'@'localhost'
def
wordpress_db
DROP
NO
'wp_user'@'localhost'
def
wordpress_db
REFERENCES
NO
'wp_user'@'localhost'
def
wordpress_db
INDEX
NO
'wp_user'@'localhost'
def
wordpress_db
ALTER
NO
'wp_user'@'localhost'
def
wordpress_db
CREATE TEMPORARY TABLES
NO
'wp_user'@'localhost'
def
wordpress_db
LOCK TABLES
NO
'wp_user'@'localhost'
def
wordpress_db
EXECUTE
NO
'wp_user'@'localhost'
def
wordpress_db
CREATE VIEW
NO
'wp_user'@'localhost'
def
wordpress_db
SHOW VIEW
NO
'wp_user'@'localhost'
def
wordpress_db
CREATE ROUTINE
NO
'wp_user'@'localhost'
def
wordpress_db
ALTER ROUTINE
NO
'wp_user'@'localhost'
def
wordpress_db
EVENT
NO
'wp_user'@'localhost'
def
wordpress_db
TRIGGER
NO

可能是什么问题？在我看来，Wordpress 在创建表之前尝试访问表 wordpress_db.wp_options。

更新：如果我在 Google Cloud SQL 实例上手动创建数据库表，然后转到 http://www.mydomain.com/wordpress/ 我会收到以下消息：

wordpress 建立数据库连接时出错

【问题讨论】：

请启用 WP_DEBUG，使用 WP 进行日志记录，使用 PHP 进行最高记录，然后查看显示和记录了哪些关于您的问题的附加信息。

标签： php mysql wordpress google-app-engine google-cloud-sql

【解决方案1】：

我有同样的问题，我的网站在本地主机上运行良好，但在服务器上却没有。

当我深入挖掘我的代码时，我发现其中缺少一些代码 CREATE [TEMPORARY] TABLE [IF NOT EXISTS] "tbl_name"

在创建数据库的wordpress文件中，不记得它是怎么调用的

问候

【讨论】：

【解决方案2】：

显然，只有通过 URL wordpress-dot-myapp.appspot.com 访问 Wordpress 才能成功。如果您通过www.mydomain.com/wordpress 访问它，则安装不会成功。请注意，就我而言，Wordpress 是作为现有 Python 应用程序的module 安装的。

【讨论】：