255 lines
8.5 KiB
C++
255 lines
8.5 KiB
C++
/*
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* Locality.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fdbrpc/Locality.h"
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const UID LocalityData::UNSET_ID = UID(0x0ccb4e0feddb5583, 0x010f6b77d9d10ece);
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const StringRef LocalityData::keyProcessId = LiteralStringRef("processid");
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const StringRef LocalityData::keyZoneId = LiteralStringRef("zoneid");
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const StringRef LocalityData::keyDcId = LiteralStringRef("dcid");
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const StringRef LocalityData::keyMachineId = LiteralStringRef("machineid");
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const StringRef LocalityData::keyDataHallId = LiteralStringRef("data_hall");
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ProcessClass::Fitness ProcessClass::machineClassFitness(ClusterRole role) const {
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switch (role) {
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case ProcessClass::Storage:
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switch (_class) {
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case ProcessClass::StorageClass:
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return ProcessClass::BestFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::WorstFit;
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case ProcessClass::LogClass:
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return ProcessClass::WorstFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::NeverAssign;
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}
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case ProcessClass::TLog:
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switch (_class) {
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case ProcessClass::LogClass:
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return ProcessClass::BestFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::StorageClass:
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return ProcessClass::WorstFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::NeverAssign;
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}
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case ProcessClass::CommitProxy: // Resolver, Master, CommitProxy, and GrvProxy need to be the same besides best fit
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switch (_class) {
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case ProcessClass::CommitProxyClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::GrvProxy: // Resolver, Master, CommitProxy, and GrvProxy need to be the same besides best fit
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switch (_class) {
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case ProcessClass::GrvProxyClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::Master: // Resolver, Master, CommitProxy, and GrvProxy need to be the same besides best fit
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switch (_class) {
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case ProcessClass::MasterClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::Resolver: // Resolver, Master, CommitProxy, and GrvProxy need to be the same besides best fit
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switch (_class) {
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case ProcessClass::ResolutionClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::LogRouter:
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switch (_class) {
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case ProcessClass::LogRouterClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::Backup:
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switch (_class) {
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case ProcessClass::BackupClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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case ProcessClass::LogRouterClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::MasterClass:
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case ProcessClass::TesterClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::ClusterController:
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switch (_class) {
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case ProcessClass::ClusterControllerClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::MasterClass:
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return ProcessClass::OkayFit;
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case ProcessClass::ResolutionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::TransactionClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CommitProxyClass:
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return ProcessClass::OkayFit;
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case ProcessClass::GrvProxyClass:
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return ProcessClass::OkayFit;
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case ProcessClass::LogRouterClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::DataDistributor:
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switch (_class) {
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case ProcessClass::DataDistributorClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::MasterClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::Ratekeeper:
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switch (_class) {
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case ProcessClass::RatekeeperClass:
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return ProcessClass::BestFit;
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case ProcessClass::StatelessClass:
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return ProcessClass::GoodFit;
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case ProcessClass::UnsetClass:
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return ProcessClass::UnsetFit;
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case ProcessClass::MasterClass:
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return ProcessClass::OkayFit;
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case ProcessClass::CoordinatorClass:
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case ProcessClass::TesterClass:
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case ProcessClass::StorageCacheClass:
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return ProcessClass::NeverAssign;
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default:
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return ProcessClass::WorstFit;
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}
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case ProcessClass::StorageCache:
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switch (_class) {
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case ProcessClass::StorageCacheClass:
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return ProcessClass::BestFit;
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default:
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return ProcessClass::NeverAssign;
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}
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default:
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return ProcessClass::NeverAssign;
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}
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}
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LBDistance::Type loadBalanceDistance(LocalityData const& loc1, LocalityData const& loc2, NetworkAddress const& addr2) {
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if (FLOW_KNOBS->LOAD_BALANCE_ZONE_ID_LOCALITY_ENABLED && loc1.zoneId().present() &&
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loc1.zoneId() == loc2.zoneId()) {
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return LBDistance::SAME_MACHINE;
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}
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// FIXME: add this back in when load balancing works with local requests
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// if ( g_network->isAddressOnThisHost( addr2 ) )
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// return LBDistance::SAME_MACHINE;
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if (FLOW_KNOBS->LOAD_BALANCE_DC_ID_LOCALITY_ENABLED && loc1.dcId().present() && loc1.dcId() == loc2.dcId()) {
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return LBDistance::SAME_DC;
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}
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return LBDistance::DISTANT;
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}
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