Website does not display but panel works please help

[Peter_R]

Hello
i have wired issue with Plesk 12.0.18
I run installation on Centos6 "Web Admin Edition Plesk 12"
Automatic backup stopped functioning and this morning i got No Space message Error.
My remote to ftp daily backup failed and started to make local backup i did not realize that and server run out of space, last plesk upgrade failed to install due to the issue.

I removed all backups and installed the latest upgrade successfully.

Plesk Panel Works. But My Website and Subdomains do not show on the internet in chrome or any other browser i get "This webpage is not available"
I checked the "/var/log/sw-cp-server/error_log"

i get this
2015/09/12 08:16:43 [crit] 1198#0: *1 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2015/09/12 08:16:51 [crit] 1198#0: *3 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2015/09/12 08:43:08 [error] 1198#0: *18 FastCGI sent in stderr: "Primary script unknown" while reading response header from upstream, client: 209.144.109.28, server: , request: "POST /enterprise/control/Agent.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "71.167.109.54:8443"
2015/09/12 11:50:54 [crit] 1120#0: *1 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2015/09/12 11:51:00 [crit] 1120#0: *3 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2015/09/12 12:14:08 [crit] 1120#0: *45 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: 24.45.179.107, server: , request: "GET /login_up.php3 HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "www.MYWEBSITENAME.com:8443"
2015/09/12 12:15:03 [crit] 1090#0: *1 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"
2015/09/12 12:15:08 [crit] 1090#0: *3 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: 24.45.179.107, server: , request: "GET /login_up.php3 HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "www.MYWEBSITENAME.com:8443", referrer: "https://www.MYWEBSITENAME.com:8443/plesk/server/reboot/?_randomId=752039"
2015/09/12 12:15:10 [crit] 1090#0: *5 connect() to unix:/var/run/sw-engine.sock failed (2: No such file or directory) while connecting to upstream, client: ::1, server: , request: "POST /check-plesk.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "localhost:8443"

I am not Plesk or Server Savvy i only know a bit basic stuff So Please be as Detail as possible in Probable Fix assistance.

I need to restore the website asap and i do not know how.

Please Advise
Thanks

 

[UFHH01]

Hi Peter_R,

some basics at first:

The Plesk Control Panel is served over the very own Plesk-webserver ( sw-cp-server ).
Your website(s) are served either over your apache-webserver, or a combination of apache+nginx, depending on your very own settings for your hosting.

Did you notice the sticky thread: [IMPORTANT]: READ THIS FIRST TO FIND QUICK SOLUTION FOR THE EXISTING ISSUE/QUESTION


Please have a look at ( and bookmark?!? ):

Odin / Parallels Plesk Panel for Linux services logs and configuration files ( KB - article: 111 283 )​

Second, please make sure, that your webserver(s) are up und running:

apache webserver:

service httpd status or /etc/init.d/httpd status ( CentOS/RHEL )
service apache2 status or /etc/init.d/apache2 status ( Debian/Ubuntu )

or : apachectl status

... to restart the apache webserver, please use:

service httpd restart or /etc/init.d/httpd restart ( CentOS/RHEL )
service apache2 restart or /etc/init.d/apache2 restart ( Debian/Ubuntu )​

nginx webserver:

service nginx status
/etc/init.d/nginx status

... to restart the nginx webserver, please use:
​

service nginx restart
/etc/init.d/nginx restart​

If you experience issues with apache and/or nginx, please have a look at the corresponding log - files of the webservers and be reminded, that there are as well corresponding domain - specific log - files ( locations as described in the mentioned KB - article above ). If you can't solve issues on your own, please consider to post the errors from your logs here in the forum, so that others are able to make some suggestions to your issues, based on your error(s)/issue(s)/problem(s).

It is always wise to include your Plesk version, including the current MU - version. The latest MU - updates are posted as threads in the forum, as for example: Plesk 12.0.18 MU#64 - Are you maybe experiencing a previous described issue(s) from these threads? Are there solutions and work-arounds described in these threads, which you tried and which didn't work for you? Which ones, please? Which errors did you get, when trying the solutions and work-arounds from the mentioned threads?



Another hint for the forum usage: You have the option to use CODE - inserts, so that log - files for example can be viewed better in this forum:

 

[Peter_R]

Hi thanks for the reply

as far as the logs there are too many to go through and too much data to analyze it would take a week to go through all of them and best part to try to understand them

i did however some log check and some other stuff in following order:

configuration checker.php:

015-09-12 04:44:57][INFO] ==> Installed Plesk version/build: 12.0.18 CentOS 6 1200150817.13

[2015-09-12 04:44:57][INFO] ==> Detect system configuration
[2015-09-12 04:44:57][INFO] OS: CentOS release 6.6 (Final)
Kernel \r on an \m
[2015-09-12 04:44:57][INFO] Arch: x86_64

[2015-09-12 04:44:57][INFO] ==> Validation of given db password
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> Web server configuration checker version: 1.0.3

[2015-09-12 04:44:57][INFO] ==> Execution log dir: /root

[2015-09-12 04:44:57][INFO] ==> STEP 1: Checking for custom configuration templates...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 2: Checking for the JkWorkersFile directive in the Apache configuration...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 3: Checking associations between domains and IP addresses...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 4: Checking for corrupted reference between IP collections and IP addresses...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 5: Checking for links between APS applications and subscriptions...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 6: Checking for the Zend extension declaraion in php.ini...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 7: Check symbolic links for latest virtual host config files...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 8: Checking for system users home directories consistency...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 9: Checking for records with empty name field in the Configurations table...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 10: Checking for SElinux state...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 11: Checking for nginx ULIMIT value...
[2015-09-12 04:44:57][INFO] Result: OK

[2015-09-12 04:44:57][INFO] ==> STEP 12: Checking for extra configurations in database not owned by any object...
[2015-09-12 04:44:57][INFO] Result: OK

checked apache : working

checked NGINX : not working

# service nginx status
nginx dead but pid file exists
[ ~]# service nginx restart
Not starting nginx as it is disabled in config
[ ~]# /etc/init.d/nginx restart
Not starting nginx as it is disabled in config

i checked /var/log/sw-cp-server/sw-engine.log :

[12-Sep-2015 03:35:16] NOTICE: Terminating ...
[12-Sep-2015 03:35:16] NOTICE: exiting, bye-bye!
[12-Sep-2015 03:35:16] NOTICE: fpm is running, pid 31662
[12-Sep-2015 03:35:16] NOTICE: ready to handle connections
[12-Sep-2015 08:15:30] NOTICE: Terminating ...
[12-Sep-2015 08:15:31] NOTICE: exiting, bye-bye!
[12-Sep-2015 08:16:53] NOTICE: fpm is running, pid 2169
[12-Sep-2015 08:16:53] NOTICE: ready to handle connections
[12-Sep-2015 11:49:57] NOTICE: Terminating ...
[12-Sep-2015 11:49:57] NOTICE: exiting, bye-bye!
[12-Sep-2015 11:51:02] NOTICE: fpm is running, pid 2091
[12-Sep-2015 11:51:02] NOTICE: ready to handle connections
[12-Sep-2015 12:12:33] NOTICE: Terminating ...
[12-Sep-2015 12:12:33] NOTICE: exiting, bye-bye!
[12-Sep-2015 12:12:34] NOTICE: fpm is running, pid 3827
[12-Sep-2015 12:12:34] NOTICE: ready to handle connections
[12-Sep-2015 12:14:06] NOTICE: Terminating ...
[12-Sep-2015 12:14:06] NOTICE: exiting, bye-bye!
[12-Sep-2015 12:15:12] NOTICE: fpm is running, pid 2095
[12-Sep-2015 12:15:12] NOTICE: ready to handle connections

seems to me like panel is working fine but website does not..

also i checked nginx error log but not sure if i ever had that runing

/var/log/nginx/error.log
2015/09/12 08:16:42 [emerg] 977#0: bind() to 192.168.2.54:80 failed (99: Cannot assign requested address)
2015/09/12 11:50:52 [emerg] 912#0: bind() to 192.168.2.54:80 failed (99: Cannot assign requested address)
2015/09/12 12:15:02 [emerg] 899#0: bind() to 192.168.2.54:80 failed (99: Cannot assign requested address)

host settings "FastCGI application" PHP ver Atomic 5.5

** Update
i added another domain and pointed to the same plesk..
i receive the same error as primary site ( default site does not show up) in chrome i get

This webpage is not available
ERR_CONNECTION_REFUSED

so i can confirm its the Plesk that is broken somwhere...

 

[Peter_R]

i can no longer log in to plesk panel

ERROR: Zend_Db_Statement_Exception: SQLSTATE[HY000]: General error: 1030 Got error 28 from storage engine (Pdo.php:234)

***UPDATE '
after the server reboot i am back in

 

[UFHH01]

Hi Peter_R,

checked NGINX : not working

# service nginx status
nginx dead but pid file exists
[ ~]# service nginx restart
Not starting nginx as it is disabled in config
[ ~]# /etc/init.d/nginx restart
Not starting nginx as it is disabled in config

You already got the cause here. So now... please find the solution. I previously suggested to have a look at other threads, where you would have noticed, that nginx has to be enabled again.

/usr/local/psa/admin/bin/nginxmng --enable​

...should fix your non-working nginx. If not, please investigate again, why nginx is not running, after re-enabling it. Please leave out investigations for "sw-cp-server", because I explained already, that the Plesk specific webserver has got nothing to do with your apache and nginx webserver for your domains and their websites.

 

[Peter_R]

thank you for your reply
strange i did not know the plesk was using nginx for websites because i did not select in configurations. But apparently it uses it because i run your command and it fixed the problem.
also strange that when i run this :

# /usr/local/psa/admin/sbin/nginxmng -s
Enabled

but when i run this it says it does not work... confusing:

#/etc/init.d/nginx status
nginx dead but pid file exists

but your suggestion

/usr/local/psa/admin/bin/nginxmng --enable

fixed the issue...
i hope permanently.

Thanks For the Hint.