..
public static getListForRole ( DBRole $role ) : Scalr_Role_Behavior[] | ||
$role | DBRole | |
return | Scalr_Role_Behavior[] |
public function OnHostDown(HostDownEvent $event) { if ($event->DBServer->IsRebooting() == 1) { $event->exit = 'reboot'; return; } if (!$this->FarmID) { $event->exit = 'no-farm'; return; } $dbFarm = DBFarm::LoadByID($this->FarmID); $servers = $dbFarm->GetServersByFilter(array('status' => array(SERVER_STATUS::RUNNING))); try { $DBFarmRole = $event->DBServer->GetFarmRoleObject(); $is_synchronize = $DBFarmRole->NewRoleID ? true : false; } catch (Exception $e) { $is_synchronize = false; } try { $DBRole = DBRole::loadById($event->DBServer->roleId); } catch (Exception $e) { } //HUGE BUG HERE! $first_in_role_handled = false; $first_in_role_server = null; $event->msgExpected = count($servers); foreach ($servers as $DBServer) { if (!$DBServer instanceof DBServer) { continue; } $isfirstinrole = '0'; $eventServerIsMaster = $event->DBServer->GetProperty(SERVER_PROPERTIES::DB_MYSQL_MASTER) || $event->DBServer->GetProperty(Scalr_Db_Msr::REPLICATION_MASTER); if ($eventServerIsMaster && !$first_in_role_handled) { if (!$is_synchronize && $DBServer->farmRoleId == $event->DBServer->farmRoleId) { if (DBRole::loadById($DBServer->roleId)->hasBehavior(ROLE_BEHAVIORS::MYSQL) || DBRole::loadById($DBServer->roleId)->getDbMsrBehavior()) { $first_in_role_handled = true; $first_in_role_server = $DBServer; $isfirstinrole = '1'; } } } $msg = new Scalr_Messaging_Msg_HostDown(); //TODO: $msg->behaviour = $DBRole ? $DBRole->getBehaviors() : '*Unknown*'; $msg->roleName = $DBRole ? $DBRole->name : '*Unknown*'; $msg->localIp = $event->DBServer->localIp; $msg->remoteIp = $event->DBServer->remoteIp; $msg->isFirstInRole = $isfirstinrole; $msg->serverIndex = $event->DBServer->index; $msg->farmRoleId = $event->DBServer->farmRoleId; $msg->serverId = $event->DBServer->serverId; $msg->cloudLocation = $event->DBServer->GetCloudLocation(); // If FarmRole was removed from farm, no configuration left if ($DBFarmRole) { $msg = Scalr_Scripting_Manager::extendMessage($msg, $event, $event->DBServer, $DBServer); if ($event->DBServer->farmRoleId != 0) { foreach (Scalr_Role_Behavior::getListForRole(DBRole::loadById($event->DBServer->roleId)) as $behavior) { $msg = $behavior->extendMessage($msg, $event->DBServer); } } } $msg = $DBServer->SendMessage($msg, false, true); if ($msg->dbMessageId) { $event->msgCreated++; } $loopServerIsMaster = $DBServer->GetProperty(SERVER_PROPERTIES::DB_MYSQL_MASTER) || $DBServer->GetProperty(Scalr_Db_Msr::REPLICATION_MASTER); if ($loopServerIsMaster && $DBServer->status == SERVER_STATUS::RUNNING) { $doNotPromoteSlave2Master = true; } } if (!$DBFarmRole) { return; } if ($DBFarmRole->GetRoleObject()->getDbMsrBehavior() && !$doNotPromoteSlave2Master && !$DBFarmRole->GetSetting(Scalr_Db_Msr::SLAVE_TO_MASTER)) { $this->sendPromoteToMasterMessage($event); } //LEGACY MYSQL CODE: if ($DBFarmRole->GetRoleObject()->hasBehavior(ROLE_BEHAVIORS::MYSQL)) { // If EC2 master down if ($event->DBServer->GetProperty(SERVER_PROPERTIES::DB_MYSQL_MASTER) && $DBFarmRole) { $master = $dbFarm->GetMySQLInstances(true); if ($master[0]) { return; } $msg = new Scalr_Messaging_Msg_Mysql_PromoteToMaster($DBFarmRole->GetSetting(DBFarmRole::SETTING_MYSQL_ROOT_PASSWORD), $DBFarmRole->GetSetting(DBFarmRole::SETTING_MYSQL_REPL_PASSWORD), $DBFarmRole->GetSetting(DBFarmRole::SETTING_MYSQL_STAT_PASSWORD)); if ($event->DBServer->IsSupported("0.7")) { if (in_array($event->DBServer->platform, array(SERVER_PLATFORMS::EC2, SERVER_PLATFORMS::CLOUDSTACK, SERVER_PLATFORMS::IDCF, SERVER_PLATFORMS::UCLOUD))) { try { $volume = Scalr_Storage_Volume::init()->loadById($DBFarmRole->GetSetting(DBFarmRole::SETTING_MYSQL_SCALR_VOLUME_ID)); $msg->volumeConfig = $volume->getConfig(); } catch (Exception $e) { $this->Logger->error(new FarmLogMessage($event->DBServer->farmId, "Cannot create volumeConfig for PromoteToMaster message: {$e->getMessage()}")); } } } elseif ($event->DBServer->platform == SERVER_PLATFORMS::EC2) { $msg->volumeId = $DBFarmRole->GetSetting(DBFarmRole::SETTING_MYSQL_MASTER_EBS_VOLUME_ID); } // Send Mysql_PromoteToMaster to the first server in the same avail zone as old master (if exists) // Otherwise send to first in role $platform = $event->DBServer->platform; if ($platform == SERVER_PLATFORMS::EC2) { $availZone = $event->DBServer->GetProperty(EC2_SERVER_PROPERTIES::AVAIL_ZONE); } foreach ($servers as $DBServer) { if ($DBServer->serverId == $event->DBServer->serverId) { continue; } if ($platform == SERVER_PLATFORMS::EC2 && $DBServer->GetProperty(EC2_SERVER_PROPERTIES::AVAIL_ZONE) == $availZone || $platform != SERVER_PLATFORMS::EC2) { if (DBRole::loadById($DBServer->roleId)->hasBehavior(ROLE_BEHAVIORS::MYSQL)) { $DBFarmRole->SetSetting(DBFarmRole::SETTING_MYSQL_SLAVE_TO_MASTER, 1); $DBServer->SetProperty(SERVER_PROPERTIES::DB_MYSQL_MASTER, 1); $DBServer->SendMessage($msg, false, true); return; } } } if ($first_in_role_server) { $DBFarmRole->SetSetting(DBFarmRole::SETTING_MYSQL_SLAVE_TO_MASTER, 1); $first_in_role_server->SetProperty(SERVER_PROPERTIES::DB_MYSQL_MASTER, 1); $first_in_role_server->SendMessage($msg, false, true); } } } }