CRIN Trac: Ticket Query

#54: 502 Errors

chris — Tue, 22 Dec 2015 11:06:04 GMT

Last night the wiki:NginxLogWatch script found a lot of 502 errors:

Dec 22     288 502, 0 503 and 0 504 errors from crin2.crin.org
Dec 22    4283 502, 0 503 and 0 504 errors from crin2.crin.org

I'm not sure why yet.

#56: Drupal Caching

chris — Sun, 03 Jan 2016 11:46:35 GMT

This is a ticket to discuss and then implement some additional caching for the https://www.crin.org/ Drupal site.

Possible options:

Generating static content from Drupal and serving these to non-logged in users, for example using Boost or something like it.
Caching PHP generated pages using Nginx.
Using a caching server such as Varnish.

My preference would for 1. and 2., I can start doing some research on how best to do 2. I'd rather not do 3. if possible due to the complication it would add: php5-fpm -> varnish -> nginx.

#73: CRIN2 ran out of memory

chris — Sun, 01 May 2016 19:16:38 GMT

The site has been down since Sun, 01 May 2016 18:05:44, it is now 8:15. I'm rebooting the server, it ran out of memory.

#94: Ongoing high load caused by a bot

chris — Thu, 15 Dec 2016 19:23:12 GMT

Ticket to working out what to do with this issue...

#97: Debian Stretch

chris — Mon, 30 Jan 2017 10:59:00 GMT

Debian Stretch will probably be released in May 2017 or so, we need a plan to migrate to it, specifically:

PHP 7.0
MariaDB 10

This has been raised with Russell on Bitbucket.

#99: Let's Encrypt Cert for CRIN.org

chris — Mon, 30 Jan 2017 14:32:43 GMT

The Gandi cert expires in a couple of weeks, in 17th Feb 2017, see:

https://www.ssllabs.com/ssltest/analyze.html?d=www.crin.org&latest

It would make sense to switch to use https://letsencrypt.org/ and the client implementation I suggest we use is this one https://github.com/Neilpang/acme.sh

#100: crin.org site down

chris — Sat, 18 Feb 2017 11:38:48 GMT

Russell, what's up? I'm really sorry I have to go out in 5 mins so I'm not around to help, what has gone wrong?

#108: Go live

russell — Tue, 04 Apr 2017 16:01:05 GMT

Hi Chris,

I've got a round of work ready to go onto Crin live. All tested and signed off on stage. The code element is very light. I don't expect any problems, but just letting you know. I'm planning to get into this as the working day is finishing today.

Best, Russell

#115: 500 Errors for crin.org

chris — Tue, 16 May 2017 17:00:33 GMT

There have been a lot of 500 errors today and they appear to be related to lines like this in /var/log/php/error.log:

[16-May-2017 17:33:08 Europe/London] PHP Fatal error:  Call to undefined function entity_translation_language_load() in /var/www/prod/docroot/includes/menu.inc on line 593

The section on the file in question:

 538
 539 /**
 540  * Loads objects into the map as defined in the $item['load_functions'].
 541  *
 542  * @param $item
 543  *   A menu router or menu link item
 544  * @param $map
 545  *   An array of path arguments; for example, array('node', '5').
 546  *
 547  * @return
 548  *   Returns TRUE for success, FALSE if an object cannot be loaded.
 549  *   Names of object loading functions are placed in $item['load_functions'].
 550  *   Loaded objects are placed in $map[]; keys are the same as keys in the
 551  *   $item['load_functions'] array.
 553  */
 554 function _menu_load_objects(&$item, &$map) {
 555   if ($load_functions = $item['load_functions']) {
 556     // If someone calls this function twice, then unserialize will fail.
 557     if (!is_array($load_functions)) {
 558       $load_functions = unserialize($load_functions);
 559     }
 560     $path_map = $map;
 561     foreach ($load_functions as $index => $function) {
 562       if ($function) {
 563         $value = isset($path_map[$index]) ? $path_map[$index] : '';
 564         if (is_array($function)) {
 565           // Set up arguments for the load function. These were pulled from
 566           // 'load arguments' in the hook_menu() entry, but they need
 567           // some processing. In this case the $function is the key to the
 568           // load_function array, and the value is the list of arguments.
 569           list($function, $args) = each($function);
 570           $load_functions[$index] = $function;
 571
 572           // Some arguments are placeholders for dynamic items to process.
 573           foreach ($args as $i => $arg) {
 574             if ($arg === '%index') {
 575               // Pass on argument index to the load function, so multiple
 576               // occurrences of the same placeholder can be identified.
 577               $args[$i] = $index;
 578             }
 579             if ($arg === '%map') {
 580               // Pass on menu map by reference. The accepting function must
 581               // also declare this as a reference if it wants to modify
 582               // the map.
 583               $args[$i] = &$map;
 584             }
 585             if (is_int($arg)) {
 586               $args[$i] = isset($path_map[$arg]) ? $path_map[$arg] : '';
 587             }
 588           }
 589           array_unshift($args, $value);
 590           $return = call_user_func_array($function, $args);
 591         }
 592         else {
 593           $return = $function($value);
 594         }
 595         // If callback returned an error or there is no callback, trigger 404.
 596         if ($return === FALSE) {
 597           $item['access'] = FALSE;
 598           $map = FALSE;
 599           return FALSE;
 600         }
 601         $map[$index] = $return;
 602       }
 603     }
 604     $item['load_functions'] = $load_functions;
 605   }
 606   return TRUE;
 607 }
 608

Peter, is the the cause of the 500 errors or is it a symptom, or is it unrelated? Do you have an idea what is going on here?

#117: Install Newrelic on Crin2

chris — Wed, 17 May 2017 11:51:53 GMT

Peter has requested that Newrelic be installed on Crin2.

Note that last time it was installed we had to remove it due to the resources it was using, see this thread ticket:73#comment:24, so I'd advise against leaving it on the server all the time.

#120: crin2 mail queue

chris — Thu, 15 Jun 2017 18:36:04 GMT

There is a mail queue on Crin2, we haven't had one of these for ages, Munin reports:

crin.org :: crin2.crin.org :: Exim Mailqueue

WARNINGs: frozen mails is 171.00 (outside range 100). OKs: queued mails is 230.00.

Graph here:

https://munin.crin.org/munin/crin.org/crin2.crin.org/exim_mailqueue.html

Anyone know if this is something to be concerned about?

#129: Problem with image uploads

chris — Mon, 11 Dec 2017 18:09:39 GMT

unable to upload new documents and images to the website.