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a92e5c5770
If a quiz had a long job to calculate statstics running, this would cause pages that may also attempt a recalculation (the statistics report page or question bank) to load very slowly, and possibly result in a database deadlock. This change will firstly prevent the question bank page performing analysis calculations at all, since these are not required for this page, which will speed up loading and prevent deadlocks on this page. Secondly, this adds a lock to the recalcuation process so that it cannot run twice concurrently. This will present the user with a message to indicate that it is waiting for a running calculation until it is complete, and eventually it will timeout with a message and debugging.
35 lines
1.3 KiB
PHP
35 lines
1.3 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Settings for the Statisics report
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*
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* @package quiz_statistics
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* @copyright 2023 onwards Catalyst IT EU {@link https://catalyst-eu.net}
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* @author Mark Johnson <mark.johnson@catalyst-eu.net>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die;
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if ($ADMIN->fulltree) {
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$settings->add(new admin_setting_configtext(
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'quiz_statistics/getstatslocktimeout',
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get_string('getstatslocktimeout', 'quiz_statistics'),
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get_string('getstatslocktimeoutdesc', 'quiz_statistics'),
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MINSECS * 15
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));
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}
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