/**
* Attempt recovery of database errors using fail over to another database
* server.
*
* @return bool true if successfully recovered
*/
private function _tryDatabaseRecovery()
{
/* Only run failover if failover is actually configured and enabled. */
if (!(isset($this->_config->database->failover) && $this->_config->database->failover->enabled)) {
return false;
}
/* If no database configuration is stored, there probably aren't any
* suitable database servers to connect to. */
if (!file_exists($this->_config->database->failover->file)) {
return false;
}
$this->_logger->info('Previously chosen database server not longer appears to be online. Attempting to fail ' . 'over to another database server.');
/* If the error type is a database error, we may be able to fail-over
* the connection to another database server. */
if (Sahara_Database::performFailover()) {
$this->_logger->warn('Database error occurred, was able to fail over to another database server.');
return true;
}
}
