2017-05-26 04:48:44 +08:00
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/*
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* Locality.h
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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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2018-02-22 02:25:11 +08:00
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*
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2017-05-26 04:48:44 +08:00
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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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2018-02-22 02:25:11 +08:00
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*
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2017-05-26 04:48:44 +08:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2018-02-22 02:25:11 +08:00
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*
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2017-05-26 04:48:44 +08:00
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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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#ifndef FLOW_LOCALITY_H
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#define FLOW_LOCALITY_H
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#pragma once
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#include "flow/flow.h"
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struct ProcessClass {
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2019-01-31 05:53:23 +08:00
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constexpr static FileIdentifier file_identifier = 6697257;
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2017-05-26 04:48:44 +08:00
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// This enum is stored in restartInfo.ini for upgrade tests, so be very careful about changing the existing items!
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2019-08-02 08:00:13 +08:00
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enum ClassType {
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UnsetClass,
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StorageClass,
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TransactionClass,
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ResolutionClass,
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TesterClass,
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2020-09-11 08:44:15 +08:00
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CommitProxyClass,
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2019-08-02 08:00:13 +08:00
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MasterClass,
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StatelessClass,
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LogClass,
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ClusterControllerClass,
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LogRouterClass,
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FastRestoreClass,
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DataDistributorClass,
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CoordinatorClass,
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RatekeeperClass,
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2019-11-13 05:01:29 +08:00
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StorageCacheClass,
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2019-04-25 06:12:37 +08:00
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BackupClass,
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2021-04-27 09:45:44 +08:00
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GrvProxyClass,
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2019-08-02 08:00:13 +08:00
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InvalidClass = -1
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};
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2019-03-31 13:13:10 +08:00
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2021-03-11 02:06:03 +08:00
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enum Fitness {
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BestFit,
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GoodFit,
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UnsetFit,
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OkayFit,
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WorstFit,
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ExcludeFit,
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NeverAssign
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}; // cannot be larger than 7 because of leader election mask
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2020-08-06 15:01:57 +08:00
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enum ClusterRole {
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Storage,
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TLog,
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2020-09-11 08:44:15 +08:00
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CommitProxy,
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2020-08-06 15:01:57 +08:00
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GrvProxy,
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Master,
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Resolver,
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LogRouter,
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ClusterController,
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DataDistributor,
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Ratekeeper,
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StorageCache,
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Backup,
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NoRole
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};
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2017-05-26 04:48:44 +08:00
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enum ClassSource { CommandLineSource, AutoSource, DBSource, InvalidSource = -1 };
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int16_t _class;
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int16_t _source;
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public:
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2021-03-11 02:06:03 +08:00
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ProcessClass() : _class(UnsetClass), _source(CommandLineSource) {}
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ProcessClass(ClassType type, ClassSource source) : _class(type), _source(source) {}
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2019-08-02 08:00:13 +08:00
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// clang-format off
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2017-05-26 04:48:44 +08:00
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explicit ProcessClass( std::string s, ClassSource source ) : _source( source ) {
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if (s=="storage") _class = StorageClass;
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else if (s=="transaction") _class = TransactionClass;
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else if (s=="resolution") _class = ResolutionClass;
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2020-09-11 08:44:15 +08:00
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else if (s=="commit_proxy") _class = CommitProxyClass;
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2020-09-30 16:13:05 +08:00
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else if (s=="proxy") {
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_class = CommitProxyClass;
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printf("WARNING: 'proxy' machine class is deprecated and will be automatically converted "
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"'commit_proxy' machine class. Please use 'grv_proxy' or 'commit_proxy' specifically\n");
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}
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2020-08-06 15:01:57 +08:00
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else if (s=="grv_proxy") _class = GrvProxyClass;
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2017-05-26 04:48:44 +08:00
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else if (s=="master") _class = MasterClass;
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else if (s=="test") _class = TesterClass;
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else if (s=="unset") _class = UnsetClass;
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else if (s=="stateless") _class = StatelessClass;
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else if (s=="log") _class = LogClass;
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2017-09-08 06:32:08 +08:00
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else if (s=="router") _class = LogRouterClass;
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2017-10-17 07:21:25 +08:00
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else if (s=="cluster_controller") _class = ClusterControllerClass;
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2020-01-29 09:53:41 +08:00
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else if (s=="fast_restore") _class = FastRestoreClass;
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2018-12-14 05:31:37 +08:00
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else if (s=="data_distributor") _class = DataDistributorClass;
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2019-01-26 03:03:13 +08:00
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else if (s=="coordinator") _class = CoordinatorClass;
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2019-03-27 23:24:25 +08:00
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else if (s=="ratekeeper") _class = RatekeeperClass;
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2019-11-13 05:01:29 +08:00
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else if (s=="storage_cache") _class = StorageCacheClass;
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2019-04-25 06:12:37 +08:00
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else if (s=="backup") _class = BackupClass;
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2017-05-26 04:48:44 +08:00
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else _class = InvalidClass;
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}
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ProcessClass( std::string classStr, std::string sourceStr ) {
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if (classStr=="storage") _class = StorageClass;
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else if (classStr=="transaction") _class = TransactionClass;
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else if (classStr=="resolution") _class = ResolutionClass;
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2020-09-11 08:44:15 +08:00
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else if (classStr=="commit_proxy") _class = CommitProxyClass;
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2020-09-30 16:13:05 +08:00
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else if (classStr=="proxy") {
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_class = CommitProxyClass;
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printf("WARNING: 'proxy' machine class is deprecated and will be automatically converted "
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"'commit_proxy' machine class. Please use 'grv_proxy' or 'commit_proxy' specifically\n");
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}
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2020-08-06 15:01:57 +08:00
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else if (classStr=="grv_proxy") _class = GrvProxyClass;
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2017-05-26 04:48:44 +08:00
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else if (classStr=="master") _class = MasterClass;
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else if (classStr=="test") _class = TesterClass;
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else if (classStr=="unset") _class = UnsetClass;
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else if (classStr=="stateless") _class = StatelessClass;
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else if (classStr=="log") _class = LogClass;
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2017-09-08 06:32:08 +08:00
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else if (classStr=="router") _class = LogRouterClass;
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2017-10-17 07:21:25 +08:00
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else if (classStr=="cluster_controller") _class = ClusterControllerClass;
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2019-08-02 08:00:13 +08:00
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else if (classStr == "fast_restore") _class = FastRestoreClass;
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2018-12-14 05:31:37 +08:00
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else if (classStr=="data_distributor") _class = DataDistributorClass;
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2019-01-26 03:03:13 +08:00
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else if (classStr=="coordinator") _class = CoordinatorClass;
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2019-03-27 23:24:25 +08:00
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else if (classStr=="ratekeeper") _class = RatekeeperClass;
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2019-11-13 05:01:29 +08:00
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else if (classStr=="storage_cache") _class = StorageCacheClass;
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2019-04-25 06:12:37 +08:00
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else if (classStr=="backup") _class = BackupClass;
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2017-05-26 04:48:44 +08:00
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else _class = InvalidClass;
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if (sourceStr=="command_line") _source = CommandLineSource;
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else if (sourceStr=="configure_auto") _source = AutoSource;
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else if (sourceStr=="set_class") _source = DBSource;
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else _source = InvalidSource;
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}
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ClassType classType() const { return (ClassType)_class; }
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ClassSource classSource() const { return (ClassSource)_source; }
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bool operator == ( const ClassType& rhs ) const { return _class == rhs; }
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bool operator != ( const ClassType& rhs ) const { return _class != rhs; }
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bool operator == ( const ProcessClass& rhs ) const { return _class == rhs._class && _source == rhs._source; }
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bool operator != ( const ProcessClass& rhs ) const { return _class != rhs._class || _source != rhs._source; }
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std::string toString() const {
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switch (_class) {
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case UnsetClass: return "unset";
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case StorageClass: return "storage";
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case TransactionClass: return "transaction";
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case ResolutionClass: return "resolution";
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2020-09-11 08:44:15 +08:00
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case CommitProxyClass: return "commit_proxy";
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2020-08-06 15:01:57 +08:00
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case GrvProxyClass: return "grv_proxy";
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2017-05-26 04:48:44 +08:00
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case MasterClass: return "master";
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case TesterClass: return "test";
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case StatelessClass: return "stateless";
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case LogClass: return "log";
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2017-09-08 06:32:08 +08:00
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case LogRouterClass: return "router";
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2017-10-17 07:21:25 +08:00
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case ClusterControllerClass: return "cluster_controller";
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2019-09-04 06:50:21 +08:00
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case FastRestoreClass: return "fast_restore";
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case DataDistributorClass: return "data_distributor";
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2019-01-26 03:03:13 +08:00
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case CoordinatorClass: return "coordinator";
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2019-03-27 23:24:25 +08:00
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case RatekeeperClass: return "ratekeeper";
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2019-11-13 05:01:29 +08:00
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case StorageCacheClass: return "storage_cache";
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2019-04-25 06:12:37 +08:00
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case BackupClass: return "backup";
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2017-05-26 04:48:44 +08:00
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default: return "invalid";
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}
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}
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2019-08-02 08:00:13 +08:00
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// clang-format on
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2017-05-26 04:48:44 +08:00
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std::string sourceString() const {
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switch (_source) {
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2021-03-11 02:06:03 +08:00
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case CommandLineSource:
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return "command_line";
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case AutoSource:
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return "configure_auto";
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case DBSource:
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return "set_class";
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default:
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return "invalid";
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2017-05-26 04:48:44 +08:00
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}
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}
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2021-03-11 02:06:03 +08:00
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Fitness machineClassFitness(ClusterRole role) const;
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2017-05-26 04:48:44 +08:00
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2021-03-11 02:06:03 +08:00
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// To change this serialization, ProtocolVersion::ProcessClassValue must be updated, and downgrades need to be
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// considered
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2017-05-26 04:48:44 +08:00
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template <class Ar>
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void serialize(Ar& ar) {
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2018-12-29 02:49:26 +08:00
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serializer(ar, _class, _source);
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2017-05-26 04:48:44 +08:00
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}
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};
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struct LocalityData {
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2021-03-11 02:06:03 +08:00
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std::map<Standalone<StringRef>, Optional<Standalone<StringRef>>> _data;
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2017-05-26 04:48:44 +08:00
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2021-03-11 02:06:03 +08:00
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static const StringRef keyProcessId;
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static const StringRef keyZoneId;
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static const StringRef keyDcId;
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static const StringRef keyMachineId;
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static const StringRef keyDataHallId;
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2017-05-26 04:48:44 +08:00
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public:
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LocalityData() {}
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2021-03-11 02:06:03 +08:00
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LocalityData(Optional<Standalone<StringRef>> processID,
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Optional<Standalone<StringRef>> zoneID,
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Optional<Standalone<StringRef>> MachineID,
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Optional<Standalone<StringRef>> dcID) {
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2017-05-26 04:48:44 +08:00
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_data[keyProcessId] = processID;
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_data[keyZoneId] = zoneID;
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_data[keyMachineId] = MachineID;
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_data[keyDcId] = dcID;
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}
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2021-03-11 02:06:03 +08:00
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bool operator==(LocalityData const& rhs) const {
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return ((_data.size() == rhs._data.size()) && (std::equal(_data.begin(), _data.end(), rhs._data.begin())));
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2017-05-26 04:48:44 +08:00
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}
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2020-07-11 05:37:47 +08:00
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bool operator!=(LocalityData const& rhs) const { return !(*this == rhs); }
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2017-05-26 04:48:44 +08:00
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2021-03-11 02:06:03 +08:00
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Optional<Standalone<StringRef>> get(StringRef key) const {
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2017-05-26 04:48:44 +08:00
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auto pos = _data.find(key);
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return (pos == _data.end()) ? Optional<Standalone<StringRef>>() : pos->second;
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}
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2021-03-11 02:06:03 +08:00
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void set(StringRef key, Optional<Standalone<StringRef>> value) { _data[key] = value; }
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2017-05-26 04:48:44 +08:00
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2021-03-11 02:06:03 +08:00
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bool isPresent(StringRef key) const { return (_data.find(key) != _data.end()); }
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bool isPresent(StringRef key, Optional<Standalone<StringRef>> value) const {
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2017-05-26 04:48:44 +08:00
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auto pos = _data.find(key);
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return (pos != _data.end()) ? false : (pos->second == value);
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}
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std::string describeValue(StringRef key) const {
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auto value = get(key);
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return (value.present()) ? value.get().toString() : "[unset]";
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}
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std::string describeZone() const { return describeValue(keyZoneId); }
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std::string describeDataHall() const { return describeValue(keyDataHallId); }
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2018-08-30 05:40:39 +08:00
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std::string describeDcId() const { return describeValue(keyDcId); }
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std::string describeMachineId() const { return describeValue(keyMachineId); }
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std::string describeProcessId() const { return describeValue(keyProcessId); }
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2017-05-26 04:48:44 +08:00
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Optional<Standalone<StringRef>> processId() const { return get(keyProcessId); }
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Optional<Standalone<StringRef>> zoneId() const { return get(keyZoneId); }
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2018-11-22 03:18:26 +08:00
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Optional<Standalone<StringRef>> machineId() const { return get(keyMachineId); } // default is ""
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2017-05-26 04:48:44 +08:00
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Optional<Standalone<StringRef>> dcId() const { return get(keyDcId); }
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Optional<Standalone<StringRef>> dataHallId() const { return get(keyDataHallId); }
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std::string toString() const {
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2021-03-11 02:06:03 +08:00
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std::string infoString;
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2017-05-26 04:48:44 +08:00
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for (auto it = _data.rbegin(); !(it == _data.rend()); ++it) {
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2021-03-11 02:06:03 +08:00
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if (infoString.length()) {
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infoString += " ";
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}
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2017-05-26 04:48:44 +08:00
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infoString += it->first.printable() + "=";
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infoString += (it->second.present()) ? it->second.get().printable() : "[unset]";
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}
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return infoString;
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}
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template <class Ar>
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void serialize(Ar& ar) {
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// Locality is persisted in the database inside StorageServerInterface, so changes here have to be
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// versioned carefully!
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2019-01-29 11:38:13 +08:00
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if constexpr (is_fb_function<Ar>) {
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serializer(ar, _data);
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} else {
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2019-06-19 08:55:27 +08:00
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if (ar.protocolVersion().hasLocality()) {
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2019-01-29 11:38:13 +08:00
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Standalone<StringRef> key;
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Optional<Standalone<StringRef>> value;
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uint64_t mapSize = (uint64_t)_data.size();
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serializer(ar, mapSize);
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if (ar.isDeserializing) {
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for (size_t i = 0; i < mapSize; i++) {
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serializer(ar, key, value);
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_data[key] = value;
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}
|
|
|
|
} else {
|
|
|
|
for (auto it = _data.begin(); it != _data.end(); it++) {
|
|
|
|
key = it->first;
|
|
|
|
value = it->second;
|
|
|
|
serializer(ar, key, value);
|
|
|
|
}
|
2017-05-26 04:48:44 +08:00
|
|
|
}
|
2019-01-29 11:38:13 +08:00
|
|
|
} else {
|
|
|
|
ASSERT(ar.isDeserializing);
|
|
|
|
UID zoneId, dcId, processId;
|
|
|
|
serializer(ar, zoneId, dcId);
|
|
|
|
set(keyZoneId, Standalone<StringRef>(zoneId.toString()));
|
|
|
|
set(keyDcId, Standalone<StringRef>(dcId.toString()));
|
|
|
|
|
2019-06-19 08:55:27 +08:00
|
|
|
if (ar.protocolVersion().hasProcessID()) {
|
2019-01-29 11:38:13 +08:00
|
|
|
serializer(ar, processId);
|
|
|
|
set(keyProcessId, Standalone<StringRef>(processId.toString()));
|
|
|
|
} else {
|
|
|
|
int _machineClass = ProcessClass::UnsetClass;
|
|
|
|
serializer(ar, _machineClass);
|
2017-05-26 04:48:44 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static const UID UNSET_ID;
|
|
|
|
};
|
|
|
|
|
2021-03-11 02:06:03 +08:00
|
|
|
static std::string describe(std::vector<LocalityData> const& items, StringRef const key, int max_items = -1) {
|
|
|
|
if (!items.size())
|
2017-05-26 04:48:44 +08:00
|
|
|
return "[no items]";
|
|
|
|
std::string s;
|
|
|
|
int count = 0;
|
2021-03-11 02:06:03 +08:00
|
|
|
for (auto const& item : items) {
|
|
|
|
if (++count > max_items && max_items >= 0)
|
2017-05-26 04:48:44 +08:00
|
|
|
break;
|
2021-03-11 02:06:03 +08:00
|
|
|
if (count > 1)
|
|
|
|
s += ",";
|
2017-05-26 04:48:44 +08:00
|
|
|
s += item.describeValue(key);
|
|
|
|
}
|
|
|
|
return s;
|
|
|
|
}
|
2021-03-11 02:06:03 +08:00
|
|
|
inline std::string describeZones(std::vector<LocalityData> const& items, int max_items = -1) {
|
2017-05-26 04:48:44 +08:00
|
|
|
return describe(items, LocalityData::keyZoneId, max_items);
|
|
|
|
}
|
2021-03-11 02:06:03 +08:00
|
|
|
inline std::string describeDataHalls(std::vector<LocalityData> const& items, int max_items = -1) {
|
2017-05-26 04:48:44 +08:00
|
|
|
return describe(items, LocalityData::keyDataHallId, max_items);
|
|
|
|
}
|
|
|
|
|
|
|
|
struct ProcessData {
|
|
|
|
LocalityData locality;
|
|
|
|
ProcessClass processClass;
|
|
|
|
NetworkAddress address;
|
|
|
|
|
|
|
|
ProcessData() {}
|
2021-03-11 02:06:03 +08:00
|
|
|
ProcessData(LocalityData locality, ProcessClass processClass, NetworkAddress address)
|
|
|
|
: locality(locality), processClass(processClass), address(address) {}
|
2017-05-26 04:48:44 +08:00
|
|
|
|
2021-03-11 02:06:03 +08:00
|
|
|
// To change this serialization, ProtocolVersion::WorkerListValue must be updated, and downgrades need to be
|
|
|
|
// considered
|
2017-05-26 04:48:44 +08:00
|
|
|
template <class Ar>
|
|
|
|
void serialize(Ar& ar) {
|
2018-12-29 02:49:26 +08:00
|
|
|
serializer(ar, locality, processClass, address);
|
2017-05-26 04:48:44 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
struct sort_by_address {
|
2021-03-11 02:06:03 +08:00
|
|
|
bool operator()(ProcessData const& a, ProcessData const& b) const { return a.address < b.address; }
|
2017-05-26 04:48:44 +08:00
|
|
|
};
|
|
|
|
};
|
|
|
|
|
|
|
|
template <class Interface, class Enable = void>
|
|
|
|
struct LBLocalityData {
|
|
|
|
enum { Present = 0 };
|
2021-03-11 02:06:03 +08:00
|
|
|
static LocalityData getLocality(Interface const&) { return LocalityData(); }
|
|
|
|
static NetworkAddress getAddress(Interface const&) { return NetworkAddress(); }
|
2018-11-03 04:15:09 +08:00
|
|
|
static bool alwaysFresh() { return true; }
|
2017-05-26 04:48:44 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
// Template specialization that only works for interfaces with a .locality member.
|
|
|
|
// If an interface has a .locality it must also have a .address()
|
|
|
|
template <class Interface>
|
2021-03-11 02:06:03 +08:00
|
|
|
struct LBLocalityData<Interface, typename std::enable_if<Interface::LocationAwareLoadBalance>::type> {
|
2017-05-26 04:48:44 +08:00
|
|
|
enum { Present = 1 };
|
2021-03-11 02:06:03 +08:00
|
|
|
static LocalityData getLocality(Interface const& i) { return i.locality; }
|
|
|
|
static NetworkAddress getAddress(Interface const& i) { return i.address(); }
|
2018-11-03 04:15:09 +08:00
|
|
|
static bool alwaysFresh() { return Interface::AlwaysFresh; }
|
2017-05-26 04:48:44 +08:00
|
|
|
};
|
|
|
|
|
|
|
|
struct LBDistance {
|
2021-03-11 02:06:03 +08:00
|
|
|
enum Type { SAME_MACHINE = 0, SAME_DC = 1, DISTANT = 2 };
|
2017-05-26 04:48:44 +08:00
|
|
|
};
|
|
|
|
|
2021-03-11 02:06:03 +08:00
|
|
|
LBDistance::Type loadBalanceDistance(LocalityData const& localLoc,
|
|
|
|
LocalityData const& otherLoc,
|
|
|
|
NetworkAddress const& otherAddr);
|
2017-05-26 04:48:44 +08:00
|
|
|
|
|
|
|
#endif
|