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Merged from MOODLE_14_STABLE - Pedantic HTTP correctness; now we return an appropriate 503 HTTP status code when the database is unreachable and assumed overloaded. This is for the benefit of monitoring and load testing scripts.

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martinlanghoff 2005-03-20 21:37:05 +00:00
parent e4acc4ce48
commit b350cb9d93
1 changed files with 9 additions and 0 deletions
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9
lib/setup.php
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@ -88,6 +88,14 @@ global $THEME;
$dbconnected = $db->Connect($CFG->dbhost,$CFG->dbuser,$CFG->dbpass,$CFG->dbname);
}
if (! $dbconnected) {
// In the name of protocol correctness, monitoring and performance
// profiling, set the appropriate error headers for machine comsumption
if (isset($_SERVER['SERVER_PROTOCOL'])) {
// Avoid it with cron.php. Note that we assume it's HTTP/1.x
header($_SERVER['SERVER_PROTOCOL'] . ' 503 Service Unavailable');
}
// and then for human consumption...
echo '<html><body>';
echo '<table align="center"><tr>';
echo '<td style="color:#990000; text-align:center; font-size:large; border-width:1px; '.
' border-color:#000000; border-style:solid; border-radius: 20px; border-collapse: collapse; '.
@ -96,6 +104,7 @@ global $THEME;
echo '<p>It is possible that the database is overloaded or otherwise not running properly.</p>';
echo '<p>The site administrator should also check that the database details have been correctly specified in config.php</p>';
echo '</td></tr></table>';
echo '</body></html>';
die;
}