166 lines
7.4 KiB
C++
166 lines
7.4 KiB
C++
/*
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* ManagementAPI.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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#ifndef FDBCLIENT_MANAGEMENTAPI_H
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#define FDBCLIENT_MANAGEMENTAPI_H
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#pragma once
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/* This file defines "management" interfaces for configuration, coordination changes, and
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the inclusion and exclusion of servers. It is used to implement fdbcli management commands
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and by test workloads that simulate such. It isn't exposed to C clients or anywhere outside
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our code base and doesn't need to be versioned. It doesn't do anything you can't do with the
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standard API and some knowledge of the contents of the system key space.
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*/
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#include <string>
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#include <map>
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#include "NativeAPI.h"
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#include "Status.h"
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#include "ReadYourWrites.h"
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#include "DatabaseConfiguration.h"
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// ConfigurationResult enumerates normal outcomes of changeConfig() and various error
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// conditions specific to it. changeConfig may also throw an Error to report other problems.
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class ConfigurationResult {
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public:
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enum Type {
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NO_OPTIONS_PROVIDED,
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CONFLICTING_OPTIONS,
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UNKNOWN_OPTION,
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INCOMPLETE_CONFIGURATION,
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DATABASE_ALREADY_CREATED,
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DATABASE_CREATED,
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SUCCESS
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};
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};
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class CoordinatorsResult {
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public:
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enum Type {
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INVALID_NETWORK_ADDRESSES,
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SAME_NETWORK_ADDRESSES,
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NOT_COORDINATORS, //FIXME: not detected
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DATABASE_UNREACHABLE, //FIXME: not detected
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BAD_DATABASE_STATE,
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COORDINATOR_UNREACHABLE,
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NOT_ENOUGH_MACHINES,
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SUCCESS
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};
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};
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struct ConfigureAutoResult {
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std::map<NetworkAddress, ProcessClass> address_class;
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int32_t processes;
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int32_t machines;
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std::string old_replication;
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int32_t old_proxies;
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int32_t old_resolvers;
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int32_t old_logs;
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int32_t old_processes_with_transaction;
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int32_t old_machines_with_transaction;
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std::string auto_replication;
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int32_t auto_proxies;
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int32_t auto_resolvers;
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int32_t auto_logs;
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int32_t auto_processes_with_transaction;
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int32_t auto_machines_with_transaction;
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int32_t desired_proxies;
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int32_t desired_resolvers;
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int32_t desired_logs;
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ConfigureAutoResult() : processes(-1), machines(-1),
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old_proxies(-1), old_resolvers(-1), old_logs(-1), old_processes_with_transaction(-1), old_machines_with_transaction(-1),
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auto_proxies(-1), auto_resolvers(-1), auto_logs(-1), auto_processes_with_transaction(-1), auto_machines_with_transaction(-1),
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desired_proxies(-1), desired_resolvers(-1), desired_logs(-1) {}
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bool isValid() const { return processes != -1; }
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};
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ConfigurationResult::Type buildConfiguration( std::vector<StringRef> const& modeTokens, std::map<std::string, std::string>& outConf ); // Accepts a vector of configuration tokens
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ConfigurationResult::Type buildConfiguration( std::string const& modeString, std::map<std::string, std::string>& outConf ); // Accepts tokens separated by spaces in a single string
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bool isCompleteConfiguration( std::map<std::string, std::string> const& options );
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// All versions of changeConfig apply the given set of configuration tokens to the database, and return a ConfigurationResult (or error).
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Future<ConfigurationResult::Type> changeConfig( Database const& cx, std::string const& configMode ); // Accepts tokens separated by spaces in a single string
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ConfigureAutoResult parseConfig( StatusObject const& status );
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Future<ConfigurationResult::Type> changeConfig( Database const& cx, std::vector<StringRef> const& modes, Optional<ConfigureAutoResult> const& conf ); // Accepts a vector of configuration tokens
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Future<ConfigurationResult::Type> changeConfig( Database const& cx, std::map<std::string, std::string> const& m ); // Accepts a full configuration in key/value format (from buildConfiguration)
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Future<DatabaseConfiguration> getDatabaseConfiguration( Database const& cx );
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Future<Void> waitForFullReplication( Database const& cx );
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struct IQuorumChange : ReferenceCounted<IQuorumChange> {
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virtual ~IQuorumChange() {}
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virtual Future<vector<NetworkAddress>> getDesiredCoordinators( Transaction* tr, vector<NetworkAddress> oldCoordinators, Reference<ClusterConnectionFile>, CoordinatorsResult::Type& ) = 0;
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virtual std::string getDesiredClusterKeyName() { return std::string(); }
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};
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// Change to use the given set of coordination servers
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Future<CoordinatorsResult::Type> changeQuorum( Database const& cx, Reference<IQuorumChange> const& change );
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Reference<IQuorumChange> autoQuorumChange(int desired = -1);
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Reference<IQuorumChange> noQuorumChange();
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Reference<IQuorumChange> specifiedQuorumChange(vector<NetworkAddress> const&);
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Reference<IQuorumChange> nameQuorumChange(std::string const& name, Reference<IQuorumChange> const& other);
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// Exclude the given set of servers from use as state servers. Returns as soon as the change is durable, without necessarily waiting for
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// the servers to be evacuated. A NetworkAddress with a port of 0 means all servers on the given IP.
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Future<Void> excludeServers( Database const& cx, vector<AddressExclusion> const& servers );
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// Remove the given servers from the exclusion list. A NetworkAddress with a port of 0 means all servers on the given IP. A NetworkAddress() means
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// all servers (don't exclude anything)
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Future<Void> includeServers( Database const& cx, vector<AddressExclusion> const& servers );
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// Set the process class of processes with the given address. A NetworkAddress with a port of 0 means all servers on the given IP.
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Future<Void> setClass( Database const& cx, AddressExclusion const& server, ProcessClass const& processClass );
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// Get the current list of excluded servers
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Future<vector<AddressExclusion>> getExcludedServers( Database const& cx );
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// Wait for the given, previously excluded servers to be evacuated (no longer used for state). Once this returns it is safe to shut down all such
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// machines without impacting fault tolerance, until and unless any of them are explicitly included with includeServers()
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Future<Void> waitForExcludedServers( Database const& cx, vector<AddressExclusion> const& servers );
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// Gets a list of all workers in the cluster (excluding testers)
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Future<vector<ProcessData>> getWorkers( Database const& cx );
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Future<vector<ProcessData>> getWorkers( Transaction* const& tr );
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Future<Void> timeKeeperSetDisable(Database const& cx);
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Future<Void> lockDatabase( Transaction* const& tr, UID const& id );
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Future<Void> lockDatabase( Reference<ReadYourWritesTransaction> const& tr, UID const& id );
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Future<Void> lockDatabase( Database const& cx, UID const& id );
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Future<Void> unlockDatabase( Transaction* const& tr, UID const& id );
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Future<Void> unlockDatabase( Reference<ReadYourWritesTransaction> const& tr, UID const& id );
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Future<Void> unlockDatabase( Database const& cx, UID const& id );
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Future<Void> checkDatabaseLock( Transaction* const& tr, UID const& id );
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Future<Void> checkDatabaseLock( Reference<ReadYourWritesTransaction> const& tr, UID const& id );
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Future<int> setDDMode( Database const& cx, int const& mode );
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// Gets the cluster connection string
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Future<std::vector<NetworkAddress>> getCoordinators( Database const& cx );
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#endif |