I have the latest Moodle 3.7.2+ on Windows 7
I am being constantly logged out and often receive the following message:
503 Service Temporarily Unavailable nginx
I have contacted the web hosting service and they say that they have checked the hosting plan and there is no problem.
Is there anything else in Moodle that can cause this problem?
Regards
Uhhh ... nginx doesn't run on Windows so you must mean you use a Windows workstation and the Nginx server (linux) reports a 503 ... temporairly unavailabe. That error is somewhat illusive ....
There could be some related errors in your nginx server error logs ... or php error logs. So check those.
Are you running autobackups? Anything that would cause server to be busy and not accept new connections.
Is your cron job/task running as it should ... every minute is current recommendation by Moodle HQ.
Would think the moodle is setup to use files for sessions and not database. Check that .... use files for sessions.
If you are using files for sessions double check owerships/permissions on moodledata/sessions directory.
Do you have any additional protections for your site whose rules might kickin from time to time ... mod_security?
'SoS', Ken
'confused' .... uhhhh, yeah, sounds like it.
Let's concentrate efforts on server ... not what you are using (one Windows computer).
Again ... 503 errors are illusive ... meaning there could be different causes ... mostly on server.
Google search:
https://www.google.com/search?client=firefox-b-1-d&q=503+error+nginx
see what I mean?
So far we have added the problem recently started after an upgrade from 3.5 to 3.7. Were there any warnings or checks server reported after the upgrade?
Have you checked error logs on the server?
Is cron job completing successfully?
No one in these forums can do a Vulcan Mind Meld with your server so it's up to you, the server administrator, to do some digging.
'SoS', Ken
Hi Ken,
I've attached the error log for yesterday, which was quite bad. Can you help me interpret it?
Regards
Regarding your question, currently the access to http://www.russell-english.com/english/e-learning/ is working. Anyways, keep in mind that the databases of the perso/pro hostings have a 30 simultaneos connectins cap, what can create latencies and problems on heavy fraworks like prestashop or moodle. We suggest you to use a private database instead, which has a 200 simultaneous connections cap.
Regarding your previous answer, I'm afraid I'm out of my depth. I don't understand sessions or files or ownership/permissions in the Moodle directory. The following is a copy of my config.php<?php // Moodle configuration file unset($CFG); global $CFG; $CFG = new stdClass(); $CFG->dbtype = 'mysqli'; $CFG->dblibrary = 'native'; $CFG->dbhost = 'russelleyhmoodle.mysql.db'; $CFG->dbname = 'russelleyhmoodle'; $CFG->dbuser = 'russelleyhmoodle'; $CFG->dbpass = '******'; $CFG->prefix = 'mdl_'; $CFG->dboptions = array ( 'dbpersist' => 0, 'dbport' => '', 'dbsocket' => '', ); $CFG->wwwroot = 'https://www.russell-english.com/english/e-learning'; $CFG->dataroot = '/home/russelleyh/e-learning/moodledata'; $CFG->admin = 'admin'; $CFG->directorypermissions = 0777; require_once(dirname(__FILE__) . '/lib/setup.php'); // There is no php closing tag in this file, // it is intentional because it prevents trailing whitespace problems!
I've also enclosed the three files you said you needed.
Backup database first ... how you do that on your hosting up to you ... phpmyadmin?
Reason your images/file links 'disappeared' ... moodle uses config.php variable
$CFG->wwwroot to build all internal links in moodle. You might have changed that alreedy but simply editing config.php file and making that change will not update the database.
If you installed a certificate *after* site was installed, then one needs to run https search and replace.
Search for http://www.russell-english.com/
Replace with https://www.russell-english.com/
Go to:
https://www.russell-english.com/english/e-learning/admin/tool/httpsreplace/
Have no idea what the difference is between perso/pro hosting is.
But 30 simil limit on DB on what you have and what helpdesk response tells you and suggestion move to private database which has 200 simil limit sounds like more than you need as your students don't access site to take a quiz (heavy hitting on DB) at the same time, do they?
What's the max number of students your site has had logged on at one time?
But, guess you'll have to 'trust' them. Am almost certain the 200 simil limit more than you really need, but then again, don't manage any servers where you host.
'SoS', Ken
