Unable to access pihole web interface

wonderingotter · September 29, 2024, 11:37am

Expected Behaviour:

Unable to access pihole web interface. Currently running Ubuntu 22.04.5 LTS on a proxmox LXC container

Actual Behaviour:

Pihole web portal shows an error 500 when ever trying to access.

Debug Token: OKN7z4Xp

Blockquote

wonderingotter:

Expected Behaviour:

Unable to access pihole web interface. Currently running Ubuntu 22.04.5 LTS on a proxmox LXC container. I believe it has something to do with lighthttpd but i'm unable to resolve it.

Actual Behaviour:

Pihole web portal shows an error 500 when ever trying to access.

Debug Token: OKN7z4Xp

Lighthttpd error logs

*** [ DIAGNOSING ]: contents of /var/log/lighttpd

-rw-r--r-- 1 www-data www-data 319K Sep 29 11:33 /var/log/lighttpd/error-pihole.log
   -----head of error-pihole.log------
   2024-09-29 00:00:00: (server.c.1827) logfiles cycled UID = 0 PID = 88278
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  file_get_contents(/proc/meminfo): Failed to open stream: Transport endpoint is not connected in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 42
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemFree" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Buffers" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Cached" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:PHP Fatal error:  Uncaught DivisionByZeroError: Division by zero in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php:53
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:Stack trace:
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:#0 /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php(150): getMemUsage()
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:#1 /var/www/html/admin/index.php(11): require('...')
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:#2 {main}
   2024-09-29 09:20:21: (mod_fastcgi.c.451) FastCGI-stderr:  thrown in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  file_get_contents(/proc/meminfo): Failed to open stream: Transport endpoint is not connected in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 42
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemFree" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Buffers" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Cached" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:PHP Fatal error:  Uncaught DivisionByZeroError: Division by zero in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php:53
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:Stack trace:
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:#0 /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php(150): getMemUsage()
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:#1 /var/www/html/admin/index.php(11): require('...')
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:#2 {main}
   2024-09-29 09:20:26: (mod_fastcgi.c.451) FastCGI-stderr:  thrown in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53

   -----tail of error-pihole.log------
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:  thrown in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  file_get_contents(/proc/meminfo): Failed to open stream: Transport endpoint is not connected in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 42
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemFree" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Buffers" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Cached" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:PHP Fatal error:  Uncaught DivisionByZeroError: Division by zero in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php:53
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:Stack trace:
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:#0 /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php(150): getMemUsage()
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:#1 /var/www/html/admin/index.php(11): require('...')
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:#2 {main}
   2024-09-29 11:33:09: (mod_fastcgi.c.451) FastCGI-stderr:  thrown in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  file_get_contents(/proc/meminfo): Failed to open stream: Transport endpoint is not connected in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 42
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemFree" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Buffers" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "Cached" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 52
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Warning:  Undefined array key "MemTotal" in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:PHP Fatal error:  Uncaught DivisionByZeroError: Division by zero in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php:53
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:Stack trace:
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:#0 /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php(150): getMemUsage()
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:#1 /var/www/html/admin/index.php(11): require('...')
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:#2 {main}
   2024-09-29 11:33:10: (mod_fastcgi.c.451) FastCGI-stderr:  thrown in /var/www/html/admin/scripts/pi-hole/php/header_authenticated.php on line 53

rdwebdesign · September 29, 2024, 4:21pm

It seems the container filesystem (lxcfs) has an issue, is stopped, or crashed. Then PHP is not able to access the files.

Reference:

Top: failed /proc/stat open: Transport endpoint is not connected - LXD - Linux Containers Forum
linux - FUSE error: Transport endpoint is not connected - Stack Overflow
Cannot open /proc/stat: Transport endpoint is not connected | Proxmox Support Forum
Google search for file_get_contents(/proc/meminfo): Failed to open stream: Transport endpoint is not connected