Fcgi attempt to connect to unix domain socket run php fpm www sock failed

Apache 2.4 Error: FCGI: attempt to connect to Unix domain socket /run/php/php7.0-fpm.sock (*) failed

Additionally, you may also want the process to startup on boot. To do that simply enter the following, of course considering your respective version.

systemctl enable php7.x-fpm 

Answer by Brody Valencia

Server Fault help chat , Meta Server Fault ,Thanks for contributing an answer to Server Fault!,I get on server this errors (CentOs 7):

This is potentially caused by systemd configuration on Apache, on Centos 7 for example by default the service is configured with :

Answer by Teagan Noble

Search this forum only Display results as threads , till Super Moderator Staff Member ISPConfig Developer Check the file /opt/php-5.6/etc/php-fpm.conf if you added the include line at the end of the file as shown in the tutorial. till, Oct 10, 2018 #4 , Display results as threads , kmchen Member here: http://webologix.com/phpinf.php kmchen, Oct 13, 2018 #15

[email protected]:~# grep include /opt/php-5.6/etc/php-fpm.conf ; Include one or more files. If glob(3) exists, it is used to include a bunch of ;include=etc/fpm.d/*.conf ;include=/opt/php-5.6/etc/php-fpm.d/*.conf include=/opt/php-5.6/etc/php-fpm.d/*.conf 

Answer by Fiona Lam

If you uninstalled PHP 7.x after installing PHP 8.0, then there was probably a bit of overlap that has taken out your PHP 8.0 installation. A slight re-install might be in order., Tour Start here for a quick overview of the site ,Electrical Engineering,That will re-load PHP 8.0, ensure the modules are in place and intact, enable the FastCGI Process Manager, then restart Apache. Generally, this is the process that people need to follow when a similar issue happens with PHP7.x.

sudo apt install --reinstall php8.0 libapache2-mod-php8.0 sudo a2enconf php8.0-fpm sudo service apache2 restart 

The AH01079: failed to make connection to backend: httpd-UDS is sometimes caused by a bum service that needs to be restarted. I don’t use PHP8.0, so can’t guess at the name of the service, but you can list all services running on your system like this:

This will give you a list of services with a [-] to signify it’s inactive, and [+] to mean it’s running. You will want to look for a service that looks something like php80-php-fpm and restart it:

sudo service php80-php-fpm restart 

On occasion there may be an issue if using proxy_fcgi and the send buffers do not fill one frame of data. This can be worked around by editing the Apache configuration for the affected site to include this:

 ProxyPassMatch ^(.*\.php)$ fcgi://127.0.0.1:9000/var/www/html/$1 SetOutputFilter DEFLATE # Don't compress images SetEnvIfNoCase Request_URI \.(?:gif|jpeg|jpg|png)$ no-gzip dont-vary # Make sure proxies don't deliver the wrong content Header append Vary User-Agent env=!dont-vary 

Answer by Elodie Reyes

i managed to start php7.0-fpm by resetting another website as the error was that address in use by another pool . but the main issue is still active,If I manually change 800X back to 8000 and restart php-fpm that the website works again.,All the virtualhosts are using another port for proxy:fcgi,Now the website config still says:

Since yesterday I encounter a rather strange issue. I have 2 VPS on OVH. Yesterday after the virtualmin/webmin update and a restart all the websites using PHP were throwing this kind of error:

[Sun Jul 28 11:00:19.583179 2019] [proxy:error] [pid 11605:tid 140145000912640] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:8021 (*) failed[Sun Jul 28 11:00:19.583228 2019] [proxy_fcgi:error] [pid 11605:tid 140145000912640] [client 80.110.94.10:38808] AH01079: failed to make connection to backend: localhost 

[www]user = www-datagroup = www-datalisten = 9003listen.owner = www-datalisten.group = www-datapm = dynamicpm.max_children = 5pm.start_servers = 2pm.min_spare_servers = 1pm.max_spare_servers = 3

SetHandler proxy:fcgi://localhost:8021

I did this yesterday for all the websites but after midnight (probably some cron, log rotate run) all the websites were again down with:

Service UnavailableThe server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Answer by Leonidas Page

i managed to start php7.0-fpm by resetting another website as the error was that address in use by another pool … but the main issue is still active,All the virtualhosts are using another port for proxy:fcgi,I did the trick to change the execution mode and they are running again. I tried to run the log rotate again and the websites were still running.,As soon as i do this, php starts working again.

Since yesterday I encounter a rather strange issue. I have 2 VPS on OVH. Yesterday after the virtualmin/webmin update and a restart all the websites using PHP were throwing this kind of error:

 [Sun Jul 28 11:00:19.583179 2019] [proxy:error] [pid 11605:tid 140145000912640] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:8021 (*) failed [Sun Jul 28 11:00:19.583228 2019] [proxy_fcgi:error] [pid 11605:tid 140145000912640] [client 80.110.94.10:38808] AH01079: failed to make connection to backend: localhost 

This config was running ok like for 2 years ago, no issues.

www.conf:

[www]
user = www-data
group = www-data

 [www] user = www-data group = www-data

listen.owner = www-data
listen.group = www-data
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3

Virtualhost config:

SetHandler proxy:fcgi://localhost:8021

 SetHandler proxy:fcgi://localhost:8021 

I did this yesterday for all the websites but after midnight (probably some cron, log rotate run) all the websites were again down with:

 Service Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. 

Answer by Ellis Adams

I am trying to run the container I built with the following Dockerfile:,I am running the container with Podman in rootless mode by the way.,The easiest way to fix this is switching from unix sock to TCP IP:Port for connecting to the FPM server. This problem won’t happen if you use fcgi://localhost:9000 for FPM., The text was updated successfully, but these errors were encountered:

FROM httpd:2.4-alpine RUN apk update \ && apk add php php-fpm supervisor COPY httpd.conf /usr/local/apache2/conf/ COPY supervisor/supervisord.conf /etc/supervisor/supervisord.conf COPY supervisor/conf.d/ /etc/supervisor/conf.d/ COPY . /usr/local/apache2/htdocs RUN sed -i "[email protected] = 127.0.0.1:[email protected] = /var/run/[email protected]" /etc/php7/php-fpm.d/www.conf CMD ["supervisord","-n", "-c", "/etc/supervisor/supervisord.conf"] 

Answer by Mekhi Huff

The most important setting in each pool is the TCP socket (IP and port) or unix domain socket (UDS) php-fpm will be listening on to receive fastCGI requests; this is configured using the listen option.,From release 5.3.3 onwards, PHP now includes the fastCGI process manager (php-fpm) in the stock source code.,controlling the apache httpd daemon,LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so

For long-running scripts, setting a large timeout might help. This approach will set the time out value to 300 seconds, and allow you to be selective about what requests are proxied:

 ProxySet timeout=300 SetHandler "proxy:fcgi://localhost" 

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Ошибка «No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed» (РЕШЕНО)

Debian и производные дистрибутивы (Ubuntu, Linux Mint, Kali Linux и многие другие) при переходе с PHP 8.1 на PHP 8.2 могут столкнуться с ошибкой «FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed».

sudo tail /var/log/apache2/error.log

содержит следующие сообщения об ошибке:

[Sun Jan 29 03:05:45.213609 2023] [proxy:error] [pid 1313500] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed [Sun Jan 29 03:05:45.213763 2023] [proxy_fcgi:error] [pid 1313500] [client 127.0.0.1:58950] AH01079: failed to make connection to backend: httpd-UDS [Sun Jan 29 03:06:39.789031 2023] [proxy:error] [pid 1313496] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed [Sun Jan 29 03:06:39.789110 2023] [proxy_fcgi:error] [pid 1313496] [client 127.0.0.1:50024] AH01079: failed to make connection to backend: httpd-UDS [Sun Jan 29 03:06:41.336218 2023] [proxy:error] [pid 1313499] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed [Sun Jan 29 03:06:41.336297 2023] [proxy_fcgi:error] [pid 1313499] [client 127.0.0.1:50040] AH01079: failed to make connection to backend: httpd-UDS [Sun Jan 29 03:07:24.027400 2023] [proxy:error] [pid 1313497] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed [Sun Jan 29 03:07:24.027445 2023] [proxy_fcgi:error] [pid 1313497] [client 127.0.0.1:44688] AH01079: failed to make connection to backend: httpd-UDS [Sun Jan 29 03:09:55.008467 2023] [proxy:error] [pid 1504919] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php8.1-fpm.sock (*:80) failed [Sun Jan 29 03:09:55.008530 2023] [proxy_fcgi:error] [pid 1504919] [client 127.0.0.1:38382] AH01079: failed to make connection to backend: httpd-UDS

Сайты и движки, использующие PHP, например, phpMyAdmin, выдают следующую ошибку:

503 Service Unavailable Service Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. Apache/2.4.55 (Debian) Server at localhost Port 80

Суть проблемы обозначена в логах веб-сервера — невозможно подключиться к сокету php8.1-fpm.sock. Это вполне предсказуемая проблема при изменении версии PHP, в данном случае с PHP 8.1 на PHP 8.2.

FPM (FastCGI Process Manager, менеджер процессов FastCGI) является альтернативной реализацией PHP FastCGI с несколькими дополнительными возможностями обычно используемыми для высоконагруженных сайтов.

Для отключения устаревшей версии FPM, выполните следующие команды:

sudo a2disconf php8.1-fpm sudo systemctl restart apache2

На этом этапе движки и сайты, не использующие FPM, уже должны начать работать нормально.

Если вы действительно используете FPM и хотите подключить новую версию, то выполните следующие команды:

sudo a2enconf php8.2-fpm sudo systemctl reload apache2 sudo systemctl restart apache2.service sudo systemctl restart php8.2-fpm

Связанные статьи:

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