private function newClusterConnection($database, $mode)
{
$master = PhabricatorDatabaseRef::getMasterDatabaseRef();
if ($master && !$master->isSevered()) {
$connection = $master->newApplicationConnection($database);
if ($master->isReachable($connection)) {
return $connection;
} else {
if ($mode == 'w') {
$this->raiseImpossibleWrite($database);
}
PhabricatorEnv::setReadOnly(true, PhabricatorEnv::READONLY_UNREACHABLE);
}
}
$replica = PhabricatorDatabaseRef::getReplicaDatabaseRef();
if (!$replica) {
throw new Exception(pht('No valid databases are configured!'));
}
$connection = $replica->newApplicationConnection($database);
$connection->setReadOnly(true);
if ($replica->isReachable($connection)) {
return $connection;
}
$this->raiseUnreachable($database);
}