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[Mahara Bot <1636090@xxxxxxxxxxxxxxxxxx>]

Patch for "master" branch: https://reviews.mahara.org/7204

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https://bugs.launchpad.net/bugs/1636090

Title:
   Execution timeout during 16.10 upgrade when fixing broken user data

Status in Mahara:
  New

Bug description:
  Mahara: 16.10.0
  DB: Postgres
  OS: Linux
  Browser: FF

  While upgrading from 16.04 to 16.10, we are getting the following
  error:

  PHP Fatal error:  Maximum execution time of 30 seconds exceeded in /var/www/clients/mahara/htdocs/lib/mahara.php on line 1569
  PHP Stack trace:
  PHP   1. {main}() /var/www/clients/mahara/htdocs/admin/cli/upgrade.php:0
  PHP   2. upgrade_mahara() /var/www/clients/mahara/htdocs/admin/cli/upgrade.php:53
  PHP   3. upgrade_core() /var/www/clients/mahara/htdocs/lib/mahara.php:265
  PHP   4. xmldb_core_upgrade() /var/www/clients/mahara/htdocs/lib/upgrade.php:347
  PHP   5. set_profile_field() /var/www/clients/mahara/htdocs/lib/db/upgrade.php:4733
  PHP   6. safe_require() /var/www/clients/mahara/htdocs/lib/user.php:536

  We have over 45K users in the DB and it's timing out.

  
  I've fixed it by adding the following immediately after 'if ($oldversion < 2016090206) {':

          $cur_max_execution_time = @ini_get('max_execution_time');
          ini_set('max_execution_time', 0);

  
  And, at the end of the if statement (to set the time back to the original timeout):
          ini_set('max_execution_time', $cur_max_execution_time);


  I didn't use raise_time_limit(0) as it didn't seem to make a
  difference. It still timeout after 30 seconds.

  
  Thanks,
  Ghada

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