foundationdb/fdbrpc/simulator.h

378 lines
15 KiB
C
Raw Normal View History

2017-05-26 04:48:44 +08:00
/*
* simulator.h
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
2017-05-26 04:48:44 +08:00
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
2017-05-26 04:48:44 +08:00
* http://www.apache.org/licenses/LICENSE-2.0
*
2017-05-26 04:48:44 +08:00
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef FLOW_SIMULATOR_H
#define FLOW_SIMULATOR_H
#pragma once
#include "flow/flow.h"
#include "fdbrpc/FailureMonitor.h"
#include "fdbrpc/Locality.h"
#include "fdbrpc/IAsyncFile.h"
2017-05-26 04:48:44 +08:00
#include "flow/TDMetric.actor.h"
#include <random>
#include "fdbrpc/ReplicationPolicy.h"
enum ClogMode { ClogDefault, ClogAll, ClogSend, ClogReceive };
class ISimulator : public INetwork {
public:
ISimulator() : desiredCoordinators(1), physicalDatacenters(1), processesPerMachine(0), listenersPerProcess(1), isStopped(false), lastConnectionFailure(0), connectionFailuresDisableDuration(0), speedUpSimulation(false), allSwapsDisabled(false), backupAgents(WaitForType), drAgents(WaitForType), extraDB(NULL), allowLogSetKills(true), usableRegions(1) {}
2017-05-26 04:48:44 +08:00
// Order matters!
enum KillType { KillInstantly, InjectFaults, RebootAndDelete, RebootProcessAndDelete, Reboot, RebootProcess, None };
2017-05-26 04:48:44 +08:00
enum BackupAgentType { NoBackupAgents, WaitForType, BackupToFile, BackupToDB };
// Subclasses may subclass ProcessInfo as well
struct MachineInfo;
struct ProcessInfo : NonCopyable {
const char* name;
const char* coordinationFolder;
const char* dataFolder;
MachineInfo* machine;
NetworkAddressList addresses;
2017-05-26 04:48:44 +08:00
NetworkAddress address;
LocalityData locality;
ProcessClass startingClass;
TDMetricCollection tdmetrics;
std::map<NetworkAddress, Reference<IListener>> listenerMap;
2017-05-26 04:48:44 +08:00
bool failed;
bool excluded;
bool cleared;
2017-05-26 04:48:44 +08:00
int64_t cpuTicks;
bool rebooting;
std::vector<flowGlobalType> globals;
INetworkConnections *network;
uint64_t fault_injection_r;
double fault_injection_p1, fault_injection_p2;
ProcessInfo(const char* name, LocalityData locality, ProcessClass startingClass, NetworkAddressList addresses,
2017-05-26 04:48:44 +08:00
INetworkConnections *net, const char* dataFolder, const char* coordinationFolder )
2019-04-15 02:11:08 +08:00
: name(name), locality(locality), startingClass(startingClass),
2019-04-10 05:29:21 +08:00
addresses(addresses), address(addresses.address), dataFolder(dataFolder),
network(net), coordinationFolder(coordinationFolder), failed(false), excluded(false), cpuTicks(0),
rebooting(false), fault_injection_p1(0), fault_injection_p2(0),
fault_injection_r(0), machine(0), cleared(false) {}
2017-05-26 04:48:44 +08:00
Future<KillType> onShutdown() { return shutdownSignal.getFuture(); }
bool isReliable() const { return !failed && fault_injection_p1 == 0 && fault_injection_p2 == 0; }
bool isAvailable() const { return !isExcluded() && isReliable(); }
bool isExcluded() const { return excluded; }
bool isCleared() const { return cleared; }
2017-05-26 04:48:44 +08:00
// Returns true if the class represents an acceptable worker
bool isAvailableClass() const {
switch (startingClass._class) {
case ProcessClass::UnsetClass: return true;
case ProcessClass::StorageClass: return true;
case ProcessClass::TransactionClass: return true;
case ProcessClass::ResolutionClass: return false;
case ProcessClass::ProxyClass: return false;
case ProcessClass::MasterClass: return false;
case ProcessClass::TesterClass: return false;
case ProcessClass::StatelessClass: return false;
case ProcessClass::LogClass: return true;
case ProcessClass::LogRouterClass: return false;
2017-10-17 07:21:25 +08:00
case ProcessClass::ClusterControllerClass: return false;
case ProcessClass::DataDistributorClass: return false;
2019-03-27 23:24:25 +08:00
case ProcessClass::RatekeeperClass: return false;
2019-11-13 05:01:29 +08:00
case ProcessClass::StorageCacheClass: return false;
case ProcessClass::BackupClass: return false;
default: return false;
}
}
const Reference<IListener> getListener(const NetworkAddress& addr) {
auto listener = listenerMap.find(addr);
ASSERT( listener != listenerMap.end());
return listener->second;
}
2017-05-26 04:48:44 +08:00
inline flowGlobalType global(int id) { return (globals.size() > id) ? globals[id] : NULL; };
inline void setGlobal(size_t id, flowGlobalType v) { globals.resize(std::max(globals.size(),id+1)); globals[id] = v; };
std::string toString() const {
return format(
"name: %s address: %s zone: %s datahall: %s class: %s excluded: %d cleared: %d", name,
formatIpPort(addresses.address.ip, addresses.address.port).c_str(),
(locality.zoneId().present() ? locality.zoneId().get().printable().c_str() : "[unset]"),
(locality.dataHallId().present() ? locality.dataHallId().get().printable().c_str() : "[unset]"),
startingClass.toString().c_str(), excluded, cleared);
2019-01-09 23:41:02 +08:00
}
2017-05-26 04:48:44 +08:00
// Members not for external use
Promise<KillType> shutdownSignal;
};
struct MachineInfo {
ProcessInfo* machineProcess;
std::vector<ProcessInfo*> processes;
std::map<std::string, Future<Reference<IAsyncFile>>> openFiles;
std::set<std::string> deletingFiles;
2017-05-26 04:48:44 +08:00
std::set<std::string> closingFiles;
Optional<Standalone<StringRef>> machineId;
2017-05-26 04:48:44 +08:00
MachineInfo() : machineProcess(0) {}
2017-05-26 04:48:44 +08:00
};
ProcessInfo* getProcess( Endpoint const& endpoint ) { return getProcessByAddress(endpoint.getPrimaryAddress()); }
2017-05-26 04:48:44 +08:00
ProcessInfo* getCurrentProcess() { return currentProcess; }
virtual Future<Void> onProcess( ISimulator::ProcessInfo *process, TaskPriority taskID = TaskPriority::Zero ) = 0;
virtual Future<Void> onMachine( ISimulator::ProcessInfo *process, TaskPriority taskID = TaskPriority::Zero ) = 0;
2017-05-26 04:48:44 +08:00
virtual ProcessInfo* newProcess(const char* name, IPAddress ip, uint16_t port, uint16_t listenPerProcess,
LocalityData locality, ProcessClass startingClass, const char* dataFolder,
const char* coordinationFolder) = 0;
2017-05-26 04:48:44 +08:00
virtual void killProcess( ProcessInfo* machine, KillType ) = 0;
virtual void rebootProcess(Optional<Standalone<StringRef>> zoneId, bool allProcesses ) = 0;
virtual void rebootProcess( ProcessInfo* process, KillType kt ) = 0;
virtual void killInterface( NetworkAddress address, KillType ) = 0;
virtual bool killMachine(Optional<Standalone<StringRef>> machineId, KillType kt, bool forceKill = false, KillType* ktFinal = NULL) = 0;
virtual bool killZone(Optional<Standalone<StringRef>> zoneId, KillType kt, bool forceKill = false, KillType* ktFinal = NULL) = 0;
virtual bool killDataCenter(Optional<Standalone<StringRef>> dcId, KillType kt, bool forceKill = false, KillType* ktFinal = NULL) = 0;
2017-05-26 04:48:44 +08:00
//virtual KillType getMachineKillState( UID zoneID ) = 0;
virtual bool canKillProcesses(std::vector<ProcessInfo*> const& availableProcesses, std::vector<ProcessInfo*> const& deadProcesses, KillType kt, KillType* newKillType) const = 0;
virtual bool isAvailable() const = 0;
virtual bool datacenterDead(Optional<Standalone<StringRef>> dcId) const = 0;
virtual void displayWorkers() const;
2017-05-26 04:48:44 +08:00
virtual void addRole(NetworkAddress const& address, std::string const& role) {
roleAddresses[address][role] ++;
TraceEvent("RoleAdd").detail("Address", address).detail("Role", role).detail("NumRoles", roleAddresses[address].size()).detail("Value", roleAddresses[address][role]);
}
virtual void removeRole(NetworkAddress const& address, std::string const& role) {
auto addressIt = roleAddresses.find(address);
if (addressIt != roleAddresses.end()) {
auto rolesIt = addressIt->second.find(role);
if (rolesIt != addressIt->second.end()) {
if (rolesIt->second > 1) {
rolesIt->second --;
TraceEvent("RoleRemove").detail("Address", address).detail("Role", role).detail("NumRoles", addressIt->second.size()).detail("Value", rolesIt->second).detail("Result", "Decremented Role");
}
else {
addressIt->second.erase(rolesIt);
if (addressIt->second.size()) {
TraceEvent("RoleRemove").detail("Address", address).detail("Role", role).detail("NumRoles", addressIt->second.size()).detail("Value", 0).detail("Result", "Removed Role");
}
else {
roleAddresses.erase(addressIt);
TraceEvent("RoleRemove").detail("Address", address).detail("Role", role).detail("NumRoles", 0).detail("Value", 0).detail("Result", "Removed Address");
}
}
}
else {
TraceEvent(SevWarn,"RoleRemove").detail("Address", address).detail("Role", role).detail("Result", "Role Missing");
}
}
else {
TraceEvent(SevWarn,"RoleRemove").detail("Address", address).detail("Role", role).detail("Result", "Address Missing");
}
}
virtual std::string getRoles(NetworkAddress const& address, bool skipWorkers = true) const {
auto addressIt = roleAddresses.find(address);
std::string roleText;
if (addressIt != roleAddresses.end()) {
for (auto& roleIt : addressIt->second) {
if ((!skipWorkers) || (roleIt.first != "Worker"))
roleText += roleIt.first + ((roleIt.second > 1) ? format("-%d ", roleIt.second) : " ");
}
}
if (roleText.empty())
roleText = "[unset]";
return roleText;
}
2017-05-26 04:48:44 +08:00
virtual void clearAddress(NetworkAddress const& address) {
clearedAddresses[address]++;
TraceEvent("ClearAddress").detail("Address", address).detail("Value", clearedAddresses[address]);
}
virtual bool isCleared(NetworkAddress const& address) const {
return clearedAddresses.find(address) != clearedAddresses.end();
}
virtual void excludeAddress(NetworkAddress const& address) {
excludedAddresses[address]++;
TraceEvent("ExcludeAddress").detail("Address", address).detail("Value", excludedAddresses[address]);
}
virtual void includeAddress(NetworkAddress const& address) {
auto addressIt = excludedAddresses.find(address);
if (addressIt != excludedAddresses.end()) {
if (addressIt->second > 1) {
addressIt->second --;
TraceEvent("IncludeAddress").detail("Address", address).detail("Value", addressIt->second).detail("Result", "Decremented");
}
else {
excludedAddresses.erase(addressIt);
TraceEvent("IncludeAddress").detail("Address", address).detail("Value", 0).detail("Result", "Removed");
}
}
else {
TraceEvent(SevWarn,"IncludeAddress").detail("Address", address).detail("Result", "Missing");
}
}
virtual void includeAllAddresses() {
TraceEvent("IncludeAddressAll").detail("AddressTotal", excludedAddresses.size());
excludedAddresses.clear();
}
virtual bool isExcluded(NetworkAddress const& address) const {
return excludedAddresses.find(address) != excludedAddresses.end();
}
2017-05-26 04:48:44 +08:00
virtual void disableSwapToMachine(Optional<Standalone<StringRef>> zoneId ) {
swapsDisabled.insert(zoneId);
}
virtual void enableSwapToMachine(Optional<Standalone<StringRef>> zoneId ) {
swapsDisabled.erase(zoneId);
allSwapsDisabled = false;
}
virtual bool canSwapToMachine(Optional<Standalone<StringRef>> zoneId ) {
return swapsDisabled.count( zoneId ) == 0 && !allSwapsDisabled && !extraDB;
}
virtual void enableSwapsToAll() {
swapsDisabled.clear();
allSwapsDisabled = false;
}
virtual void disableSwapsToAll() {
swapsDisabled.clear();
allSwapsDisabled = true;
}
virtual void clogInterface(const IPAddress& ip, double seconds, ClogMode mode = ClogDefault) = 0;
virtual void clogPair(const IPAddress& from, const IPAddress& to, double seconds) = 0;
virtual std::vector<ProcessInfo*> getAllProcesses() const = 0;
2017-05-26 04:48:44 +08:00
virtual ProcessInfo* getProcessByAddress( NetworkAddress const& address ) = 0;
virtual MachineInfo* getMachineByNetworkAddress(NetworkAddress const& address) = 0;
virtual MachineInfo* getMachineById(Optional<Standalone<StringRef>> const& machineId) = 0;
2017-05-26 04:48:44 +08:00
virtual void run() {}
virtual void destroyProcess( ProcessInfo *p ) = 0;
virtual void destroyMachine(Optional<Standalone<StringRef>> const& machineId ) = 0;
2017-05-26 04:48:44 +08:00
int desiredCoordinators;
int physicalDatacenters;
int processesPerMachine;
int listenersPerProcess;
2017-05-26 04:48:44 +08:00
std::set<NetworkAddress> protectedAddresses;
std::map<NetworkAddress, ProcessInfo*> currentlyRebootingProcesses;
class ClusterConnectionString* extraDB;
Reference<IReplicationPolicy> storagePolicy;
Reference<IReplicationPolicy> tLogPolicy;
int32_t tLogWriteAntiQuorum;
Optional<Standalone<StringRef>> primaryDcId;
Reference<IReplicationPolicy> remoteTLogPolicy;
int32_t usableRegions;
std::string disablePrimary;
std::string disableRemote;
std::string originalRegions;
bool allowLogSetKills;
Optional<Standalone<StringRef>> remoteDcId;
bool hasSatelliteReplication;
Reference<IReplicationPolicy> satelliteTLogPolicy;
Reference<IReplicationPolicy> satelliteTLogPolicyFallback;
int32_t satelliteTLogWriteAntiQuorum;
int32_t satelliteTLogWriteAntiQuorumFallback;
std::vector<Optional<Standalone<StringRef>>> primarySatelliteDcIds;
std::vector<Optional<Standalone<StringRef>>> remoteSatelliteDcIds;
2017-05-26 04:48:44 +08:00
//Used by workloads that perform reconfigurations
int testerCount;
std::string connectionString;
bool isStopped;
double lastConnectionFailure;
double connectionFailuresDisableDuration;
2017-05-26 04:48:44 +08:00
bool speedUpSimulation;
BackupAgentType backupAgents;
BackupAgentType drAgents;
2017-05-26 04:48:44 +08:00
virtual flowGlobalType global(int id) { return getCurrentProcess()->global(id); };
virtual void setGlobal(size_t id, flowGlobalType v) { getCurrentProcess()->setGlobal(id,v); };
virtual void disableFor(const std::string& desc, double time) {
disabledMap[desc] = time;
}
virtual double checkDisabled(const std::string& desc) const
{
auto iter = disabledMap.find(desc);
if (iter != disabledMap.end()) {
return iter->second;
}
return 0;
}
2019-03-14 12:27:23 +08:00
2017-05-26 04:48:44 +08:00
static thread_local ProcessInfo* currentProcess;
protected:
2017-05-26 04:48:44 +08:00
Mutex mutex;
private:
std::set<Optional<Standalone<StringRef>>> swapsDisabled;
std::map<NetworkAddress, int> excludedAddresses;
std::map<NetworkAddress, int> clearedAddresses;
std::map<NetworkAddress, std::map<std::string, int>> roleAddresses;
std::map<std::string, double> disabledMap;
2017-05-26 04:48:44 +08:00
bool allSwapsDisabled;
};
// Quickly make existing code work that expects g_simulator to be of class type (not a pointer)
extern ISimulator* g_pSimulator;
#define g_simulator (*g_pSimulator)
void startNewSimulator();
2017-05-26 04:48:44 +08:00
//Parameters used to simulate disk performance
struct DiskParameters : ReferenceCounted<DiskParameters> {
double nextOperation;
int64_t iops;
int64_t bandwidth;
DiskParameters(int64_t iops, int64_t bandwidth) : nextOperation(0), iops(iops), bandwidth(bandwidth) { }
};
//Simulates delays for performing operations on disk
extern Future<Void> waitUntilDiskReady(Reference<DiskParameters> parameters, int64_t size, bool sync = false);
class Sim2FileSystem : public IAsyncFileSystem {
public:
// Opens a file for asynchronous I/O
virtual Future< Reference<class IAsyncFile> > open( std::string filename, int64_t flags, int64_t mode );
2017-05-26 04:48:44 +08:00
// Deletes the given file. If mustBeDurable, returns only when the file is guaranteed to be deleted even after a power failure.
virtual Future< Void > deleteFile( std::string filename, bool mustBeDurable );
virtual Future< std::time_t > lastWriteTime( std::string filename );
2017-05-26 04:48:44 +08:00
Sim2FileSystem() {}
virtual ~Sim2FileSystem() {}
static void newFileSystem();
};
#endif