503 Service Unavailable Error

[Troye Johnson]

I am running Centos7
Fog version 1.5.2

I am currently receiving this error when trying to get to the fog management pageService Unavailable

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

I am not sure where to start when it comes to troubleshooting this issue. I have however tried dropping the database and once that happens things seem to run better the issue is I do not want to lose all my settings and when I did that it did not allow me to add new images.

[george1421]

@troye-johnson This is an interesting one. Take a peek at the apache error log in /var/log/httpd.

Go to the management console to get the 500 error and then just tail the error log file and see what apache isn’t happy with.

[Greg Plamondon]

I am getting this as well… its hit and miss. If I refresh the page the web interface comes back.

[george1421]

@greg-plamondon OK let me update my dev box (its still on 1.5.0) to see if I can find anything.

[Troye Johnson]

[Wed Apr 11 14:06:00.009232 2018] [proxy_fcgi:error] [pid 2887] (70007)The timeout specified has expired: [client x.x.x.x:56333] AH01075: Error dispatching request to :

Is the error i am receiving.

[Greg Plamondon]

I found this in the apache logs when it happens.

[Wed Apr 11 13:52:45.028047 2018] [proxy_fcgi:error] [pid 2841] (70007)The timeout specified has expired: [client 10.10.150.73:62324] AH01075: Error dispatching request to :, referer: http://10fogserver/fog/management/index.php?node=host&sub=deploy&id=160&type=1

[george1421]

@greg-plamondon said in 503 Service Unavailable Error:

proxy_fcgi

That kind of tells me that php-fpm was enabled and its having an issue. What OS do you have Greg? My dev box is centos so I should be able to duplicate Troye’s issue.

I wasn’t aware that the devs enabled php-fpm (which is generally a good thing to have running).

[Greg Plamondon]

@george1421 I am running Centos 7.4 x64

[george1421]

(still waiting for my dev server to update)
I did do some testing for php-fpm a while ago: https://forums.fogproject.org/topic/10717/can-php-fpm-make-fog-web-gui-fast

The idea of php-fpm is a dedicated php engine that executes much faster than the built in php engine in apache.

[george1421]

@george1421 ok not related to php-fpm.

How many client computers do you guys have on your campus?

[Troye Johnson]

I have about 130-150 clients.

[Wayne Workman]

@greg-plamondon said in 503 Service Unavailable Error:

I found this in the apache logs when it happens.

[Wed Apr 11 13:52:45.028047 2018] [proxy_fcgi:error] [pid 2841] (70007)The timeout specified has expired: [client 10.10.150.73:62324] AH01075: Error dispatching request to :, referer: http://10fogserver/fog/management/index.php?node=host&sub=deploy&id=160&type=1

Did you purposely put 10fogserver in there?

[george1421]

@george1421 OK I’m back hunting php-fpm timeout.

For those with the error can you review this log file to see if it gives us any clue to why /var/log/php-fpm/www-error.log

[Greg Plamondon]

@george1421
I followed your FPM/FastCGI howto you linked and the problem seems to be gone and considerably faster now.
Thanks!

[Troye Johnson]

I will try your guide.

[Greg Plamondon]

@wayne-workman Yes, as we have more than one.

[george1421]

@george1421 said in 503 Service Unavailable Error:
For those with the error can you review this log file to see if it gives us any clue to why /var/log/php-fpm/www-error.log

Its great we have php-fpm running, it does make quite a difference, but we need to understand why. I can’t seem to make it fail on my side, but I only have a handful of systems on my dev box.

[Greg Plamondon]

@george1421 said in 503 Service Unavailable Error:

@george1421 said in 503 Service Unavailable Error:
For those with the error can you review this log file to see if it gives us any clue to why /var/log/php-fpm/www-error.log

Its great we have php-fpm running, it does make quite a difference, but we need to understand why. I can’t seem to make it fail on my side, but I only have a handful of systems on my dev box.

this is my log:

[11-Apr-2018 14:53:04 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 35258 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 14:53:14 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 35258 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 14:53:27 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 35258 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 15:30:55 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 15:33:22 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:00:49 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 32768 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:08:10 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:13:25 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:13:46 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:14:03 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:14:28 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:14:31 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:16:21 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:17:13 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:17:30 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:17:51 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:21:05 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:21:28 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:22:15 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:24:21 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:24:57 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:25:19 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:25:45 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 16:26:28 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:44:16 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:44:39 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:44:54 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:45:19 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:46:00 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:46:58 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:47:54 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:48:13 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:48:23 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:48:52 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:49:06 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260
[11-Apr-2018 17:49:30 UTC] PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 16384 bytes) in /var/www/html/fog/lib/fog/fogcontroller.class.php on line 260

[george1421]

@greg-plamondon Ok it looks like an upper memory limit got us. OK lets see what we need to do to fix. @Troye-Johnson since Greg already tainted his system hold off for a minute updating yours so we can see if we can fix this memory issue.

[Tom Elliott]

@george1421 change the memory limit it fogsettings