124 lines
5.0 KiB
C++
124 lines
5.0 KiB
C++
/*
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* ServerDBInfo.actor.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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*
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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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#if defined(NO_INTELLISENSE) && !defined(FDBSERVER_SERVERDBINFO_ACTOR_G_H)
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#define FDBSERVER_SERVERDBINFO_ACTOR_G_H
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#include "fdbserver/ServerDBInfo.actor.g.h"
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#elif !defined(FDBSERVER_SERVERDBINFO_ACTOR_H)
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#define FDBSERVER_SERVERDBINFO_ACTOR_H
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#define FDBSERVER_SERVERDBINFO_H
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#pragma once
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#include "fdbserver/DataDistributorInterface.h"
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#include "fdbserver/MasterInterface.h"
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#include "fdbserver/LogSystemConfig.h"
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#include "fdbserver/RatekeeperInterface.h"
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#include "fdbserver/RecoveryState.h"
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#include "fdbserver/LatencyBandConfig.h"
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#include "fdbserver/WorkerInterface.actor.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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struct ServerDBInfo {
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constexpr static FileIdentifier file_identifier = 13838807;
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// This structure contains transient information which is broadcast to all workers for a database,
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// permitting them to communicate with each other. It is not available to the client. This mechanism
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// (see GetServerDBInfoRequest) is closely parallel to OpenDatabaseRequest for the client.
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UID id; // Changes each time any other member changes
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ClusterControllerFullInterface clusterInterface;
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ClientDBInfo client; // After a successful recovery, eventually proxies that communicate with it
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Optional<DataDistributorInterface> distributor; // The best guess of current data distributor.
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MasterInterface master; // The best guess as to the most recent master, which might still be recovering
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Optional<RatekeeperInterface> ratekeeper;
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std::vector<ResolverInterface> resolvers;
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DBRecoveryCount
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recoveryCount; // A recovery count from DBCoreState. A successful master recovery increments it twice;
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// unsuccessful recoveries may increment it once. Depending on where the current master is in its
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// recovery process, this might not have been written by the current master.
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RecoveryState recoveryState;
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LifetimeToken masterLifetime; // Used by masterserver to detect not being the currently chosen master
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LocalityData myLocality; // (Not serialized) Locality information, if available, for the *local* process
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LogSystemConfig logSystemConfig;
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std::vector<UID> priorCommittedLogServers; // If !fullyRecovered and logSystemConfig refers to a new log system
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// which may not have been committed to the coordinated state yet, then
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// priorCommittedLogServers are the previous, fully committed generation
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// which need to stay alive in case this recovery fails
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Optional<LatencyBandConfig> latencyBandConfig;
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int64_t infoGeneration;
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ServerDBInfo()
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: recoveryCount(0), recoveryState(RecoveryState::UNINITIALIZED), logSystemConfig(0), infoGeneration(0) {}
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bool operator==(ServerDBInfo const& r) const { return id == r.id; }
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bool operator!=(ServerDBInfo const& r) const { return id != r.id; }
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template <class Ar>
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void serialize(Ar& ar) {
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serializer(ar,
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id,
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clusterInterface,
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client,
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distributor,
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master,
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ratekeeper,
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resolvers,
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recoveryCount,
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recoveryState,
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masterLifetime,
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logSystemConfig,
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priorCommittedLogServers,
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latencyBandConfig,
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infoGeneration);
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}
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};
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struct UpdateServerDBInfoRequest {
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constexpr static FileIdentifier file_identifier = 9467438;
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Standalone<StringRef> serializedDbInfo;
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std::vector<Endpoint> broadcastInfo;
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ReplyPromise<std::vector<Endpoint>> reply;
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template <class Ar>
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void serialize(Ar& ar) {
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serializer(ar, serializedDbInfo, broadcastInfo, reply);
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}
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};
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struct GetServerDBInfoRequest {
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constexpr static FileIdentifier file_identifier = 9467439;
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UID knownServerInfoID;
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ReplyPromise<struct ServerDBInfo> reply;
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template <class Ar>
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void serialize(Ar& ar) {
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serializer(ar, knownServerInfoID, reply);
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}
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};
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ACTOR Future<Void> broadcastTxnRequest(TxnStateRequest req, int sendAmount, bool sendReply);
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ACTOR Future<std::vector<Endpoint>> broadcastDBInfoRequest(UpdateServerDBInfoRequest req,
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int sendAmount,
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Optional<Endpoint> sender,
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bool sendReply);
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#include "flow/unactorcompiler.h"
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#endif
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