Title: mysqli errors
Last modified: September 1, 2016

---

# mysqli errors

 *  [blindpet](https://wordpress.org/support/users/blindpet/)
 * (@blindpet)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/mysqli-errors/)
 * Running an nginx and php5-fpm server and get these errors when disabling Query
   Monitor
 *     ```
       1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock", host: "www.htpcguides.com", referrer: "https://www.htpcguides.com/wp-admin/admin.php?page=wpbullet_varnish_settings&status=display"
       2016/08/28 20:06:54 [error] 3319#3319: *333255 FastCGI sent in stderr: "PHP message: PHP Warning:  mysqli_query(): Couldn't fetch mysqli in /var/www/htpcguides.com/wp-includes/wp-db.php on line 1858
       PHP message: PHP Warning:  mysqli_errno(): Couldn't fetch mysqli in /var/www/htpcguides.com/wp-includes/wp-db.php on line 1753
       PHP message: PHP Warning:  mysqli_error(): Couldn't fetch mysqli in /var/www/htpcguides.com/wp-includes/wp-db.php on line 1780
       PHP message: PHP Warning:  mysqli_get_server_info(): Couldn't fetch mysqli in /var/www/htpcguides.com/wp-includes/wp-db.php on line 3309" while reading response header from upstream, client: 109.198.128.63, server: www.htpcguides.com,, request: "POST /wp-admin/admin-ajax.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.htpcguides.com", referrer: "https://www.htpcguides.com/wp-admin/plugins.php"
       ```
   
 * [https://wordpress.org/plugins/query-monitor/](https://wordpress.org/plugins/query-monitor/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * (@johnbillion)
 * WordPress Core Developer
 * [9 years, 8 months ago](https://wordpress.org/support/topic/mysqli-errors/#post-7710375)
 * When exactly does this happen?
    Does it only happen with Query Monitor? Does 
   it happen if you delete the `wp-content/db.php` symlink beforehand?
 *  Thread Starter [blindpet](https://wordpress.org/support/users/blindpet/)
 * (@blindpet)
 * [9 years, 8 months ago](https://wordpress.org/support/topic/mysqli-errors/#post-7710427)
 * I first noticed it when I disable or enable the Query Monitor plugin.
 * So far I have only seen it happen with Query Monitor.
 * When the plugin is disabled the symlink is not present in the wp-content folder

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘mysqli errors’ is closed to new replies.

 * ![](https://ps.w.org/query-monitor/assets/icon.svg?rev=2994095)
 * [Query Monitor](https://wordpress.org/plugins/query-monitor/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/query-monitor/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/query-monitor/)
 * [Active Topics](https://wordpress.org/support/plugin/query-monitor/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/query-monitor/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/query-monitor/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [blindpet](https://wordpress.org/support/users/blindpet/)
 * Last activity: [9 years, 8 months ago](https://wordpress.org/support/topic/mysqli-errors/#post-7710427)
 * Status: not resolved