private function newClusterConnection($application, $database, $mode)
{
$master = PhabricatorDatabaseRef::getMasterDatabaseRefForApplication($application);
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);
}
}
$replica = PhabricatorDatabaseRef::getReplicaDatabaseRefForApplication($application);
if ($replica) {
$connection = $replica->newApplicationConnection($database);
$connection->setReadOnly(true);
if ($replica->isReachable($connection)) {
return $connection;
}
}
if (!$master && !$replica) {
$this->raiseUnconfigured($database);
}
$this->raiseUnreachable($database);
}