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foundationdb/fdbserver/SimulatedCluster.actor.cpp

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/*
* SimulatedCluster.actor.cpp
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
#include <fstream>
#include "fdbrpc/simulator.h"
#include "fdbclient/DatabaseContext.h"
#include "fdbserver/TesterInterface.actor.h"
#include "fdbserver/WorkerInterface.actor.h"
#include "fdbclient/ClusterInterface.h"
#include "fdbserver/Knobs.h"
#include "fdbserver/CoordinationInterface.h"
#include "fdbmonitor/SimpleIni.h"
#include "fdbrpc/AsyncFileNonDurable.actor.h"
#include "fdbclient/ManagementAPI.actor.h"
#include "fdbclient/NativeAPI.actor.h"
#include "fdbclient/BackupAgent.actor.h"
#include "fdbclient/IncludeVersions.h"
#include "flow/actorcompiler.h" // This must be the last #include.
#undef max
#undef min
extern "C" int g_expect_full_pointermap;
extern const char* getSourceVersion();
const int MACHINE_REBOOT_TIME = 10;
bool destructed = false;
template <class T>
T simulate( const T& in ) {
BinaryWriter writer(AssumeVersion(currentProtocolVersion));
writer << in;
BinaryReader reader( writer.getData(), writer.getLength(), AssumeVersion(currentProtocolVersion) );
T out;
reader >> out;
return out;
}
ACTOR Future<Void> runBackup( Reference<ClusterConnectionFile> connFile ) {
state std::vector<Future<Void>> agentFutures;
while (g_simulator.backupAgents == ISimulator::WaitForType) {
wait(delay(1.0));
}
if (g_simulator.backupAgents == ISimulator::BackupToFile) {
Database cx = Database::createDatabase(connFile, -1);
state FileBackupAgent fileAgent;
state double backupPollDelay = 1.0 / CLIENT_KNOBS->BACKUP_AGGREGATE_POLL_RATE;
agentFutures.push_back(fileAgent.run(cx, &backupPollDelay, CLIENT_KNOBS->SIM_BACKUP_TASKS_PER_AGENT));
while (g_simulator.backupAgents == ISimulator::BackupToFile) {
wait(delay(1.0));
}
for(auto it : agentFutures) {
it.cancel();
}
}
wait(Future<Void>(Never()));
throw internal_error();
}
ACTOR Future<Void> runDr( Reference<ClusterConnectionFile> connFile ) {
state std::vector<Future<Void>> agentFutures;
while (g_simulator.drAgents == ISimulator::WaitForType) {
wait(delay(1.0));
}
if (g_simulator.drAgents == ISimulator::BackupToDB) {
Database cx = Database::createDatabase(connFile, -1);
Reference<ClusterConnectionFile> extraFile(new ClusterConnectionFile(*g_simulator.extraDB));
state Database extraDB = Database::createDatabase(extraFile, -1);
TraceEvent("StartingDrAgents").detail("ConnFile", connFile->getConnectionString().toString()).detail("ExtraString", extraFile->getConnectionString().toString());
state DatabaseBackupAgent dbAgent = DatabaseBackupAgent(cx);
state DatabaseBackupAgent extraAgent = DatabaseBackupAgent(extraDB);
state double dr1PollDelay = 1.0 / CLIENT_KNOBS->BACKUP_AGGREGATE_POLL_RATE;
state double dr2PollDelay = 1.0 / CLIENT_KNOBS->BACKUP_AGGREGATE_POLL_RATE;
agentFutures.push_back(extraAgent.run(cx, &dr1PollDelay, CLIENT_KNOBS->SIM_BACKUP_TASKS_PER_AGENT));
agentFutures.push_back(dbAgent.run(extraDB, &dr2PollDelay, CLIENT_KNOBS->SIM_BACKUP_TASKS_PER_AGENT));
while (g_simulator.drAgents == ISimulator::BackupToDB) {
wait(delay(1.0));
}
TraceEvent("StoppingDrAgents");
for(auto it : agentFutures) {
it.cancel();
}
}
wait(Future<Void>(Never()));
throw internal_error();
}
enum AgentMode {
AgentNone = 0,
AgentOnly = 1,
AgentAddition = 2
};
// SOMEDAY: when a process can be rebooted in isolation from the other on that machine,
// a loop{} will be needed around the waiting on simulatedFDBD(). For now this simply
// takes care of house-keeping such as context switching and file closing.
ACTOR Future<ISimulator::KillType> simulatedFDBDRebooter(Reference<ClusterConnectionFile> connFile, IPAddress ip,
bool sslEnabled,
uint16_t port, uint16_t listenPerProcess,
LocalityData localities, ProcessClass processClass,
std::string* dataFolder, std::string* coordFolder,
std::string baseFolder, ClusterConnectionString connStr,
bool useSeedFile, AgentMode runBackupAgents,
std::string whitelistBinPaths) {
state ISimulator::ProcessInfo *simProcess = g_simulator.getCurrentProcess();
state UID randomId = nondeterministicRandom()->randomUniqueID();
state int cycles = 0;
loop {
auto waitTime = SERVER_KNOBS->MIN_REBOOT_TIME + (SERVER_KNOBS->MAX_REBOOT_TIME - SERVER_KNOBS->MIN_REBOOT_TIME) * deterministicRandom()->random01();
cycles ++;
TraceEvent("SimulatedFDBDPreWait").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", NetworkAddress(ip, port, true, false))
.detail("ZoneId", localities.zoneId())
.detail("WaitTime", waitTime).detail("Port", port);
wait( delay( waitTime ) );
state ISimulator::ProcessInfo* process =
g_simulator.newProcess("Server", ip, port, sslEnabled, listenPerProcess, localities, processClass, dataFolder->c_str(),
coordFolder->c_str());
wait(g_simulator.onProcess(process,
TaskPriority::DefaultYield)); // Now switch execution to the process on which we will run
state Future<ISimulator::KillType> onShutdown = process->onShutdown();
try {
TraceEvent("SimulatedRebooterStarting").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId())
.detail("Address", process->address.toString())
.detail("Excluded", process->excluded)
.detail("UsingSSL", sslEnabled);
TraceEvent("ProgramStart").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("SourceVersion", getSourceVersion())
.detail("Version", FDB_VT_VERSION)
.detail("PackageName", FDB_VT_PACKAGE_NAME)
.detail("DataFolder", *dataFolder)
.detail("ConnectionString", connFile ? connFile->getConnectionString().toString() : "")
.detailf("ActualTime", "%lld", DEBUG_DETERMINISM ? 0 : time(NULL))
.detail("CommandLine", "fdbserver -r simulation")
.detail("BuggifyEnabled", isBuggifyEnabled(BuggifyType::General))
.detail("Simulated", true)
.trackLatest("ProgramStart");
try {
//SOMEDAY: test lower memory limits, without making them too small and causing the database to stop making progress
FlowTransport::createInstance(processClass == ProcessClass::TesterClass || runBackupAgents == AgentOnly, 1);
Sim2FileSystem::newFileSystem();
vector<Future<Void>> futures;
for (int listenPort = port; listenPort < port + listenPerProcess; ++listenPort) {
NetworkAddress n(ip, listenPort, true, sslEnabled && listenPort == port);
futures.push_back(FlowTransport::transport().bind( n, n ));
}
if(runBackupAgents != AgentOnly) {
futures.push_back( fdbd( connFile, localities, processClass, *dataFolder, *coordFolder, 500e6, "", "", -1, whitelistBinPaths) );
}
if(runBackupAgents != AgentNone) {
futures.push_back( runBackup(connFile) );
futures.push_back( runDr(connFile) );
}
futures.push_back(success(onShutdown));
wait( waitForAny(futures) );
} catch (Error& e) {
// If in simulation, if we make it here with an error other than io_timeout but enASIOTimedOut is set then somewhere an io_timeout was converted to a different error.
if(g_network->isSimulated() && e.code() != error_code_io_timeout && (bool)g_network->global(INetwork::enASIOTimedOut))
TraceEvent(SevError, "IOTimeoutErrorSuppressed").detail("ErrorCode", e.code()).detail("RandomId", randomId).backtrace();
if (onShutdown.isReady() && onShutdown.isError()) throw onShutdown.getError();
if(e.code() != error_code_actor_cancelled)
printf("SimulatedFDBDTerminated: %s\n", e.what());
ASSERT( destructed || g_simulator.getCurrentProcess() == process ); // simulatedFDBD catch called on different process
TraceEvent(e.code() == error_code_actor_cancelled || e.code() == error_code_file_not_found || destructed ? SevInfo : SevError, "SimulatedFDBDTerminated").error(e, true).detail("ZoneId", localities.zoneId());
}
TraceEvent("SimulatedFDBDDone").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("Excluded", process->excluded)
.detail("ZoneId", localities.zoneId())
.detail("KillType", onShutdown.isReady() ? onShutdown.get() : ISimulator::None);
if (!onShutdown.isReady())
onShutdown = ISimulator::InjectFaults;
} catch (Error& e) {
TraceEvent(destructed ? SevInfo : SevError, "SimulatedFDBDRebooterError").error(e, true).detail("ZoneId", localities.zoneId()).detail("RandomId", randomId);
onShutdown = e;
}
ASSERT( destructed || g_simulator.getCurrentProcess() == process );
if( !process->shutdownSignal.isSet() && !destructed ) {
process->rebooting = true;
process->shutdownSignal.send(ISimulator::None);
}
TraceEvent("SimulatedFDBDWait").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("Excluded", process->excluded)
.detail("Rebooting", process->rebooting)
.detail("ZoneId", localities.zoneId());
wait( g_simulator.onProcess( simProcess ) );
wait(delay(0.00001 + FLOW_KNOBS->MAX_BUGGIFIED_DELAY)); // One last chance for the process to clean up?
g_simulator.destroyProcess( process ); // Leak memory here; the process may be used in other parts of the simulation
auto shutdownResult = onShutdown.get();
TraceEvent("SimulatedFDBDShutdown").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("Excluded", process->excluded)
.detail("ZoneId", localities.zoneId())
.detail("KillType", shutdownResult);
if( shutdownResult < ISimulator::RebootProcessAndDelete ) {
TraceEvent("SimulatedFDBDLowerReboot").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("Excluded", process->excluded)
.detail("ZoneId", localities.zoneId())
.detail("KillType", shutdownResult);
return onShutdown.get();
}
if( onShutdown.get() == ISimulator::RebootProcessAndDelete ) {
TraceEvent("SimulatedFDBDRebootAndDelete").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("ZoneId", localities.zoneId())
.detail("KillType", shutdownResult);
*coordFolder = joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString());
*dataFolder = joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString());
platform::createDirectory( *dataFolder );
if(!useSeedFile) {
writeFile(joinPath(*dataFolder, "fdb.cluster"), connStr.toString());
connFile = Reference<ClusterConnectionFile>( new ClusterConnectionFile( joinPath( *dataFolder, "fdb.cluster" )));
}
else {
connFile = Reference<ClusterConnectionFile>( new ClusterConnectionFile( joinPath( *dataFolder, "fdb.cluster" ), connStr.toString() ) );
}
}
else {
TraceEvent("SimulatedFDBDJustRepeat").detail("Cycles", cycles).detail("RandomId", randomId)
.detail("Address", process->address)
.detail("ZoneId", localities.zoneId())
.detail("KillType", shutdownResult);
}
}
}
template<>
std::string describe(bool const& val) {
return val ? "true" : "false";
}
template<>
std::string describe(int const& val) {
return format("%d", val);
}
// Since a datacenter kill is considered to be the same as killing a machine, files cannot be swapped across datacenters
std::map< Optional<Standalone<StringRef>>, std::vector< std::vector< std::string > > > availableFolders;
// process count is no longer needed because it is now the length of the vector of ip's, because it was one ip per process
ACTOR Future<Void> simulatedMachine(ClusterConnectionString connStr, std::vector<IPAddress> ips, bool sslEnabled, LocalityData localities,
ProcessClass processClass, std::string baseFolder, bool restarting,
bool useSeedFile, AgentMode runBackupAgents, bool sslOnly, std::string whitelistBinPaths) {
state int bootCount = 0;
state std::vector<std::string> myFolders;
state std::vector<std::string> coordFolders;
state UID randomId = nondeterministicRandom()->randomUniqueID();
state int listenPerProcess = (sslEnabled && !sslOnly) ? 2 : 1;
try {
CSimpleIni ini;
ini.SetUnicode();
ini.LoadFile(joinPath(baseFolder, "restartInfo.ini").c_str());
for (int i = 0; i < ips.size(); i++) {
if (restarting) {
myFolders.push_back( ini.GetValue(printable(localities.machineId()).c_str(), format("%d", i*listenPerProcess).c_str(), joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString()).c_str()) );
if(i == 0) {
std::string coordinationFolder = ini.GetValue(printable(localities.machineId()).c_str(), "coordinationFolder", "");
if(!coordinationFolder.size())
coordinationFolder = ini.GetValue(printable(localities.machineId()).c_str(), format("c%d", i*listenPerProcess).c_str(), joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString()).c_str());
coordFolders.push_back(coordinationFolder);
} else {
coordFolders.push_back( ini.GetValue(printable(localities.machineId()).c_str(), format("c%d", i*listenPerProcess).c_str(), joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString()).c_str()) );
}
}
else {
coordFolders.push_back( joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString()) );
std::string thisFolder = deterministicRandom()->randomUniqueID().toString();
myFolders.push_back( joinPath(baseFolder, thisFolder ) );
platform::createDirectory( myFolders[i] );
if (!useSeedFile)
writeFile(joinPath(myFolders[i], "fdb.cluster"), connStr.toString());
}
}
loop {
state std::vector< Future<ISimulator::KillType> > processes;
for( int i = 0; i < ips.size(); i++ ) {
std::string path = joinPath(myFolders[i], "fdb.cluster");
Reference<ClusterConnectionFile> clusterFile(useSeedFile ? new ClusterConnectionFile(path, connStr.toString()) : new ClusterConnectionFile(path));
const int listenPort = i*listenPerProcess + 1;
AgentMode agentMode = runBackupAgents == AgentOnly ? ( i == ips.size()-1 ? AgentOnly : AgentNone ) : runBackupAgents;
processes.push_back(simulatedFDBDRebooter(clusterFile, ips[i], sslEnabled, listenPort, listenPerProcess, localities, processClass, &myFolders[i], &coordFolders[i], baseFolder, connStr, useSeedFile, agentMode, whitelistBinPaths));
TraceEvent("SimulatedMachineProcess", randomId).detail("Address", NetworkAddress(ips[i], listenPort, true, false)).detail("ZoneId", localities.zoneId()).detail("DataHall", localities.dataHallId()).detail("Folder", myFolders[i]);
}
TEST( bootCount >= 1 ); // Simulated machine rebooted
TEST( bootCount >= 2 ); // Simulated machine rebooted twice
TEST( bootCount >= 3 ); // Simulated machine rebooted three times
++bootCount;
TraceEvent("SimulatedMachineStart", randomId)
.detail("Folder0", myFolders[0])
.detail("CFolder0", coordFolders[0])
.detail("MachineIPs", toIPVectorString(ips))
.detail("SSL", sslEnabled)
.detail("Processes", processes.size())
.detail("BootCount", bootCount)
.detail("ProcessClass", processClass.toString())
.detail("Restarting", restarting)
.detail("UseSeedFile", useSeedFile)
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId())
.detail("Locality", localities.toString());
wait( waitForAll( processes ) );
TraceEvent("SimulatedMachineRebootStart", randomId)
.detail("Folder0", myFolders[0])
.detail("CFolder0", coordFolders[0])
.detail("MachineIPs", toIPVectorString(ips))
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId());
{
//Kill all open files, which may cause them to write invalid data.
auto& machineCache = g_simulator.getMachineById(localities.machineId())->openFiles;
//Copy the file pointers to a vector because the map may be modified while we are killing files
std::vector<AsyncFileNonDurable*> files;
for(auto fileItr = machineCache.begin(); fileItr != machineCache.end(); ++fileItr) {
ASSERT( fileItr->second.isReady() );
files.push_back( (AsyncFileNonDurable*)fileItr->second.get().getPtr() );
}
std::vector<Future<Void>> killFutures;
for(auto fileItr = files.begin(); fileItr != files.end(); ++fileItr)
killFutures.push_back((*fileItr)->kill());
wait( waitForAll( killFutures ) );
}
state std::set<std::string> filenames;
state std::string closingStr;
auto& machineCache = g_simulator.getMachineById(localities.machineId())->openFiles;
for( auto it : machineCache ) {
filenames.insert( it.first );
closingStr += it.first + ", ";
ASSERT( it.second.isReady() && !it.second.isError() );
}
for( auto it : g_simulator.getMachineById(localities.machineId())->deletingFiles ) {
filenames.insert( it );
closingStr += it + ", ";
}
TraceEvent("SimulatedMachineRebootAfterKills", randomId)
.detail("Folder0", myFolders[0])
.detail("CFolder0", coordFolders[0])
.detail("MachineIPs", toIPVectorString(ips))
.detail("Closing", closingStr)
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId());
ISimulator::MachineInfo* machine = g_simulator.getMachineById(localities.machineId());
machine->closingFiles = filenames;
g_simulator.getMachineById(localities.machineId())->openFiles.clear();
// During a reboot:
// The process is expected to close all files and be inactive in zero time, but not necessarily
// without delay(0)-equivalents, so delay(0) a few times waiting for it to achieve that goal.
// After an injected fault:
// The process is expected to shut down eventually, but not necessarily instantly. Wait up to 60 seconds.
state int shutdownDelayCount = 0;
state double backoff = 0;
loop {
auto& machineCache = g_simulator.getMachineById(localities.machineId())->closingFiles;
if( !machineCache.empty() ) {
std::string openFiles;
int i = 0;
for( auto it = machineCache.begin(); it != machineCache.end() && i < 5; ++it ) {
openFiles += *it + ", ";
i++;
}
TraceEvent("MachineFilesOpen", randomId).detail("PAddr", toIPVectorString(ips)).detail("OpenFiles", openFiles);
} else
break;
if( shutdownDelayCount++ >= 50 ) { // Worker doesn't shut down instantly on reboot
TraceEvent(SevError, "SimulatedFDBDFilesCheck", randomId)
.detail("PAddrs", toIPVectorString(ips))
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId());
ASSERT( false );
}
wait( delay( backoff ) );
backoff = std::min( backoff + 1.0, 6.0 );
}
TraceEvent("SimulatedFDBDFilesClosed", randomId)
.detail("Address", toIPVectorString(ips))
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId());
g_simulator.destroyMachine(localities.machineId());
// SOMEDAY: when processes can be rebooted, this check will be needed
//ASSERT( this machine is rebooting );
// Since processes can end with different codes, take the highest (least severe) to detmine what to do
state ISimulator::KillType killType = processes[0].get();
for( int i = 1; i < ips.size(); i++ )
killType = std::max( processes[i].get(), killType );
TEST( true ); // Simulated machine has been rebooted
state bool swap = killType == ISimulator::Reboot && BUGGIFY_WITH_PROB(0.75) && g_simulator.canSwapToMachine( localities.zoneId() );
if( swap )
availableFolders[localities.dcId()].push_back( myFolders );
auto rebootTime = deterministicRandom()->random01() * MACHINE_REBOOT_TIME;
TraceEvent("SimulatedMachineShutdown", randomId)
.detail("Swap", swap)
.detail("KillType", killType)
.detail("RebootTime", rebootTime)
.detail("ZoneId", localities.zoneId())
.detail("DataHall", localities.dataHallId())
.detail("MachineIPs", toIPVectorString(ips));
wait( delay( rebootTime ) );
if( swap ) {
auto& avail = availableFolders[localities.dcId()];
int i = deterministicRandom()->randomInt(0, avail.size());
if( i != avail.size() - 1 )
std::swap( avail[i], avail.back() );
auto toRebootFrom = avail.back();
avail.pop_back();
if( myFolders != toRebootFrom ) {
TEST( true ); // Simulated machine swapped data folders
TraceEvent("SimulatedMachineFolderSwap", randomId)
.detail("OldFolder0", myFolders[0]).detail("NewFolder0", toRebootFrom[0])
.detail("MachineIPs", toIPVectorString(ips));
}
myFolders = toRebootFrom;
if(!useSeedFile) {
for(auto f : toRebootFrom) {
if(!fileExists(joinPath(f, "fdb.cluster"))) {
writeFile(joinPath(f, "fdb.cluster"), connStr.toString());
}
}
}
} else if( killType == ISimulator::RebootAndDelete ) {
for( int i = 0; i < ips.size(); i++ ) {
coordFolders[i] = joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString());
myFolders[i] = joinPath(baseFolder, deterministicRandom()->randomUniqueID().toString());
platform::createDirectory( myFolders[i] );
if(!useSeedFile) {
writeFile(joinPath(myFolders[i], "fdb.cluster"), connStr.toString());
}
}
TEST( true ); // Simulated machine rebooted with data loss
}
//this machine is rebooting = false;
}
} catch( Error &e ) {
g_simulator.getMachineById(localities.machineId())->openFiles.clear();
throw;
}
}
IPAddress makeIPAddressForSim(bool isIPv6, std::array<int, 4> parts) {
if (isIPv6) {
IPAddress::IPAddressStore addrStore{ 0xAB, 0xCD };
uint16_t* ptr = (uint16_t*)addrStore.data();
ptr[4] = (uint16_t)(parts[0] << 8);
ptr[5] = (uint16_t)(parts[1] << 8);
ptr[6] = (uint16_t)(parts[2] << 8);
ptr[7] = (uint16_t)(parts[3] << 8);
return IPAddress(addrStore);
} else {
return IPAddress(parts[0] << 24 | parts[1] << 16 | parts[2] << 8 | parts[3]);
}
}
#include "fdbclient/MonitorLeader.h"
ACTOR Future<Void> restartSimulatedSystem(vector<Future<Void>>* systemActors, std::string baseFolder, int* pTesterCount,
Optional<ClusterConnectionString>* pConnString,
Standalone<StringRef>* pStartingConfiguration,
int extraDB, std::string whitelistBinPaths) {
CSimpleIni ini;
ini.SetUnicode();
ini.LoadFile(joinPath(baseFolder, "restartInfo.ini").c_str());
// allows multiple ipAddr entries
ini.SetMultiKey();
try {
int machineCount = atoi(ini.GetValue("META", "machineCount"));
int processesPerMachine = atoi(ini.GetValue("META", "processesPerMachine"));
int listenersPerProcess = 1;
auto listenersPerProcessStr = ini.GetValue("META", "listenersPerProcess");
if(listenersPerProcessStr != NULL) {
listenersPerProcess = atoi(listenersPerProcessStr);
}
int desiredCoordinators = atoi(ini.GetValue("META", "desiredCoordinators"));
int testerCount = atoi(ini.GetValue("META", "testerCount"));
bool enableExtraDB = (extraDB == 3);
ClusterConnectionString conn(ini.GetValue("META", "connectionString"));
if (enableExtraDB) {
g_simulator.extraDB = new ClusterConnectionString(ini.GetValue("META", "connectionString"));
}
*pConnString = conn;
*pTesterCount = testerCount;
bool usingSSL = conn.toString().find(":tls") != std::string::npos || listenersPerProcess > 1;
int useSeedForMachine = deterministicRandom()->randomInt(0, machineCount);
std::vector<std::string> dcIds;
for( int i = 0; i < machineCount; i++) {
Optional<Standalone<StringRef>> dcUID;
Optional<Standalone<StringRef>> zoneId;
std::string machineIdString = ini.GetValue("META", format("%d", i).c_str());
Standalone<StringRef> machineId = StringRef(machineIdString);
std::string dcUIDini = ini.GetValue(machineIdString.c_str(), "dcUID");
if (!dcUIDini.empty()) {
dcUID = StringRef(dcUIDini);
}
auto zoneIDini = ini.GetValue(machineIdString.c_str(), "zoneId");
if( zoneIDini == NULL ) {
zoneId = machineId;
} else {
zoneId = StringRef(zoneIDini);
}
ProcessClass processClass = ProcessClass((ProcessClass::ClassType)atoi(ini.GetValue(machineIdString.c_str(), "mClass")), ProcessClass::CommandLineSource);
if(processClass != ProcessClass::TesterClass) {
dcIds.push_back(dcUIDini);
}
std::vector<IPAddress> ipAddrs;
int processes = atoi(ini.GetValue(machineIdString.c_str(), "processes"));
auto ip = ini.GetValue(machineIdString.c_str(), "ipAddr");
// Helper to translate the IP address stored in INI file to out IPAddress representation.
// After IPv6 work, we store the actual string representation of IP address, however earlier, it was
// instead the 32 bit integer value.
auto parseIp = [](const char* ipStr) -> IPAddress {
Optional<IPAddress> parsedIp = IPAddress::parse(ipStr);
if (parsedIp.present()) {
return parsedIp.get();
} else {
return IPAddress(strtoul(ipStr, NULL, 10));
}
};
if( ip == NULL ) {
for (int i = 0; i < processes; i++) {
const char* val =
ini.GetValue(machineIdString.c_str(), format("ipAddr%d", i * listenersPerProcess).c_str());
ipAddrs.push_back(parseIp(val));
}
}
else {
// old way
ipAddrs.push_back(parseIp(ip));
for (int i = 1; i < processes; i++){
if (ipAddrs.back().isV6()) {
IPAddress::IPAddressStore store = ipAddrs.back().toV6();
uint16_t* ptr = (uint16_t*)store.data();
ptr[7] += 1;
ipAddrs.push_back(IPAddress(store));
} else {
ipAddrs.push_back(IPAddress(ipAddrs.back().toV4() + 1));
}
}
}
LocalityData localities(Optional<Standalone<StringRef>>(), zoneId, machineId, dcUID);
localities.set(LiteralStringRef("data_hall"), dcUID);
// SOMEDAY: parse backup agent from test file
systemActors->push_back(reportErrors(
simulatedMachine(conn, ipAddrs, usingSSL, localities, processClass, baseFolder, true,
i == useSeedForMachine, enableExtraDB ? AgentAddition : AgentNone,
usingSSL && (listenersPerProcess == 1 || processClass == ProcessClass::TesterClass), whitelistBinPaths),
processClass == ProcessClass::TesterClass ? "SimulatedTesterMachine" : "SimulatedMachine"));
}
g_simulator.desiredCoordinators = desiredCoordinators;
g_simulator.processesPerMachine = processesPerMachine;
uniquify(dcIds);
if(!BUGGIFY && dcIds.size() == 2 && dcIds[0] != "" && dcIds[1] != "") {
StatusObject primaryObj;
StatusObject primaryDcObj;
primaryDcObj["id"] = dcIds[0];
primaryDcObj["priority"] = 2;
StatusArray primaryDcArr;
primaryDcArr.push_back(primaryDcObj);
StatusObject remoteObj;
StatusObject remoteDcObj;
remoteDcObj["id"] = dcIds[1];
remoteDcObj["priority"] = 1;
StatusArray remoteDcArr;
remoteDcArr.push_back(remoteDcObj);
primaryObj["datacenters"] = primaryDcArr;
remoteObj["datacenters"] = remoteDcArr;
StatusArray regionArr;
regionArr.push_back(primaryObj);
regionArr.push_back(remoteObj);
*pStartingConfiguration = "single usable_regions=2 regions=" + json_spirit::write_string(json_spirit::mValue(regionArr), json_spirit::Output_options::none);
}
TraceEvent("RestartSimulatorSettings")
.detail("DesiredCoordinators", g_simulator.desiredCoordinators)
.detail("ProcessesPerMachine", g_simulator.processesPerMachine)
.detail("ListenersPerProcess", listenersPerProcess);
}
catch (Error& e) {
TraceEvent(SevError, "RestartSimulationError").error(e);
}
wait(delay(1.0));
return Void();
}
struct SimulationConfig {
explicit SimulationConfig(int extraDB, int minimumReplication, int minimumRegions);
int extraDB;
DatabaseConfiguration db;
void set_config(std::string config);
// Simulation layout
int datacenters;
int machine_count; // Total, not per DC.
int processes_per_machine;
int coordinators;
private:
void generateNormalConfig(int minimumReplication, int minimumRegions);
};
SimulationConfig::SimulationConfig(int extraDB, int minimumReplication, int minimumRegions) : extraDB(extraDB) {
generateNormalConfig(minimumReplication, minimumRegions);
}
void SimulationConfig::set_config(std::string config) {
// The only mechanism we have for turning "single" into what single means
// is buildConfiguration()... :/
std::map<std::string, std::string> hack_map;
ASSERT( buildConfiguration(config, hack_map) );
for(auto kv : hack_map) db.set( kv.first, kv.second );
}
StringRef StringRefOf(const char* s) {
return StringRef((uint8_t*)s, strlen(s));
}
void SimulationConfig::generateNormalConfig(int minimumReplication, int minimumRegions) {
set_config("new");
const bool simple = false; // Set true to simplify simulation configs for easier debugging
// generateMachineTeamTestConfig set up the number of servers per machine and the number of machines such that
// if we do not remove the surplus server and machine teams, the simulation test will report error.
// This is needed to make sure the number of server (and machine) teams is no larger than the desired number.
bool generateMachineTeamTestConfig = BUGGIFY_WITH_PROB(0.1) ? true : false;
bool generateFearless = simple ? false : (minimumRegions > 1 || deterministicRandom()->random01() < 0.5);
datacenters = simple ? 1 : ( generateFearless ? ( minimumReplication > 0 || deterministicRandom()->random01() < 0.5 ? 4 : 6 ) : deterministicRandom()->randomInt( 1, 4 ) );
if (deterministicRandom()->random01() < 0.25) db.desiredTLogCount = deterministicRandom()->randomInt(1,7);
if (deterministicRandom()->random01() < 0.25) db.masterProxyCount = deterministicRandom()->randomInt(1,7);
if (deterministicRandom()->random01() < 0.25) db.resolverCount = deterministicRandom()->randomInt(1,7);
int storage_engine_type = deterministicRandom()->randomInt(0, 4);
switch (storage_engine_type) {
case 0: {
TEST(true); // Simulated cluster using ssd storage engine
set_config("ssd");
break;
}
case 1: {
TEST(true); // Simulated cluster using default memory storage engine
set_config("memory");
break;
}
case 2: {
TEST(true); // Simulated cluster using radix-tree storage engine
set_config("memory-radixtree-beta");
break;
}
case 3: {
TEST(true); // Simulated cluster using radix-tree storage engine
set_config("ssd-redwood-experimental");
break;
}
default:
ASSERT(false); // Programmer forgot to adjust cases.
}
// if (deterministicRandom()->random01() < 0.5) {
// set_config("ssd");
// } else {
// set_config("memory");
// }
// set_config("memory");
// set_config("memory-radixtree-beta");
if(simple) {
db.desiredTLogCount = 1;
db.masterProxyCount = 1;
db.resolverCount = 1;
}
int replication_type = simple ? 1 : ( std::max(minimumReplication, datacenters > 4 ? deterministicRandom()->randomInt(1,3) : std::min(deterministicRandom()->randomInt(0,6), 3)) );
switch (replication_type) {
case 0: {
TEST( true ); // Simulated cluster using custom redundancy mode
int storage_servers = deterministicRandom()->randomInt(1, generateFearless ? 4 : 5);
//FIXME: log replicas must be more than storage replicas because otherwise better master exists will not recognize it needs to change dcs
int replication_factor = deterministicRandom()->randomInt(storage_servers, generateFearless ? 4 : 5);
int anti_quorum = deterministicRandom()->randomInt(0, (replication_factor/2) + 1); //The anti quorum cannot be more than half of the replication factor, or the log system will continue to accept commits when a recovery is impossible
// Go through buildConfiguration, as it sets tLogPolicy/storagePolicy.
set_config(format("storage_replicas:=%d log_replicas:=%d log_anti_quorum:=%d "
"replica_datacenters:=1 min_replica_datacenters:=1",
storage_servers, replication_factor, anti_quorum));
break;
}
case 1: {
TEST( true ); // Simulated cluster running in single redundancy mode
set_config("single");
break;
}
case 2: {
TEST( true ); // Simulated cluster running in double redundancy mode
set_config("double");
break;
}
case 3: {
if( datacenters <= 2 || generateFearless ) {
TEST( true ); // Simulated cluster running in triple redundancy mode
set_config("triple");
}
else if( datacenters == 3 ) {
TEST( true ); // Simulated cluster running in 3 data-hall mode
set_config("three_data_hall");
}
else {
ASSERT( false );
}
break;
}
default:
ASSERT(false); // Programmer forgot to adjust cases.
}
if (deterministicRandom()->random01() < 0.5) {
int logSpill = deterministicRandom()->randomInt( TLogSpillType::VALUE, TLogSpillType::END );
set_config(format("log_spill:=%d", logSpill));
int logVersion = deterministicRandom()->randomInt( TLogVersion::MIN_RECRUITABLE, TLogVersion::MAX_SUPPORTED+1 );
set_config(format("log_version:=%d", logVersion));
} else {
if (deterministicRandom()->random01() < 0.7)
set_config(format("log_version:=%d", TLogVersion::MAX_SUPPORTED));
if (deterministicRandom()->random01() < 0.5)
set_config(format("log_spill:=%d", TLogSpillType::DEFAULT));
}
if (deterministicRandom()->random01() < 0.5) {
set_config("backup_worker_enabled:=1");
}
if(generateFearless || (datacenters == 2 && deterministicRandom()->random01() < 0.5)) {
//The kill region workload relies on the fact that all "0", "2", and "4" are all of the possible primary dcids.
StatusObject primaryObj;
StatusObject primaryDcObj;
primaryDcObj["id"] = "0";
primaryDcObj["priority"] = 2;
StatusArray primaryDcArr;
primaryDcArr.push_back(primaryDcObj);
StatusObject remoteObj;
StatusObject remoteDcObj;
remoteDcObj["id"] = "1";
remoteDcObj["priority"] = 1;
StatusArray remoteDcArr;
remoteDcArr.push_back(remoteDcObj);
bool needsRemote = generateFearless;
if(generateFearless) {
if(datacenters > 4) {
//FIXME: we cannot use one satellite replication with more than one satellite per region because canKillProcesses does not respect usable_dcs
int satellite_replication_type = deterministicRandom()->randomInt(0,3);
switch (satellite_replication_type) {
case 0: {
TEST( true ); // Simulated cluster using no satellite redundancy mode
break;
}
case 1: {
TEST( true ); // Simulated cluster using two satellite fast redundancy mode
primaryObj["satellite_redundancy_mode"] = "two_satellite_fast";
remoteObj["satellite_redundancy_mode"] = "two_satellite_fast";
break;
}
case 2: {
TEST( true ); // Simulated cluster using two satellite safe redundancy mode
primaryObj["satellite_redundancy_mode"] = "two_satellite_safe";
remoteObj["satellite_redundancy_mode"] = "two_satellite_safe";
break;
}
default:
ASSERT(false); // Programmer forgot to adjust cases.
}
} else {
int satellite_replication_type = deterministicRandom()->randomInt(0,5);
switch (satellite_replication_type) {
case 0: {
//FIXME: implement
TEST( true ); // Simulated cluster using custom satellite redundancy mode
break;
}
case 1: {
TEST( true ); // Simulated cluster using no satellite redundancy mode
break;
}
case 2: {
TEST( true ); // Simulated cluster using single satellite redundancy mode
primaryObj["satellite_redundancy_mode"] = "one_satellite_single";
remoteObj["satellite_redundancy_mode"] = "one_satellite_single";
break;
}
case 3: {
TEST( true ); // Simulated cluster using double satellite redundancy mode
primaryObj["satellite_redundancy_mode"] = "one_satellite_double";
remoteObj["satellite_redundancy_mode"] = "one_satellite_double";
break;
}
case 4: {
TEST( true ); // Simulated cluster using triple satellite redundancy mode
primaryObj["satellite_redundancy_mode"] = "one_satellite_triple";
remoteObj["satellite_redundancy_mode"] = "one_satellite_triple";
break;
}
default:
ASSERT(false); // Programmer forgot to adjust cases.
}
}
if (deterministicRandom()->random01() < 0.25) primaryObj["satellite_logs"] = deterministicRandom()->randomInt(1,7);
if (deterministicRandom()->random01() < 0.25) remoteObj["satellite_logs"] = deterministicRandom()->randomInt(1,7);
//We cannot run with a remote DC when MAX_READ_TRANSACTION_LIFE_VERSIONS is too small, because the log routers will not be able to keep up.
if (minimumRegions <= 1 && (deterministicRandom()->random01() < 0.25 || SERVER_KNOBS->MAX_READ_TRANSACTION_LIFE_VERSIONS < SERVER_KNOBS->VERSIONS_PER_SECOND)) {
TEST( true ); // Simulated cluster using one region
needsRemote = false;
} else {
TEST( true ); // Simulated cluster using two regions
db.usableRegions = 2;
}
int remote_replication_type = deterministicRandom()->randomInt(0, datacenters > 4 ? 4 : 5);
switch (remote_replication_type) {
case 0: {
//FIXME: implement
TEST( true ); // Simulated cluster using custom remote redundancy mode
break;
}
case 1: {
TEST( true ); // Simulated cluster using default remote redundancy mode
break;
}
case 2: {
TEST( true ); // Simulated cluster using single remote redundancy mode
set_config("remote_single");
break;
}
case 3: {
TEST( true ); // Simulated cluster using double remote redundancy mode
set_config("remote_double");
break;
}
case 4: {
TEST( true ); // Simulated cluster using triple remote redundancy mode
set_config("remote_triple");
break;
}
default:
ASSERT(false); // Programmer forgot to adjust cases.
}
if (deterministicRandom()->random01() < 0.25) db.desiredLogRouterCount = deterministicRandom()->randomInt(1,7);
if (deterministicRandom()->random01() < 0.25) db.remoteDesiredTLogCount = deterministicRandom()->randomInt(1,7);
bool useNormalDCsAsSatellites = datacenters > 4 && minimumRegions < 2 && deterministicRandom()->random01() < 0.3;
StatusObject primarySatelliteObj;
primarySatelliteObj["id"] = useNormalDCsAsSatellites ? "1" : "2";
primarySatelliteObj["priority"] = 1;
primarySatelliteObj["satellite"] = 1;
if (deterministicRandom()->random01() < 0.25) primarySatelliteObj["satellite_logs"] = deterministicRandom()->randomInt(1,7);
primaryDcArr.push_back(primarySatelliteObj);
StatusObject remoteSatelliteObj;
remoteSatelliteObj["id"] = useNormalDCsAsSatellites ? "0" : "3";
remoteSatelliteObj["priority"] = 1;
remoteSatelliteObj["satellite"] = 1;
if (deterministicRandom()->random01() < 0.25) remoteSatelliteObj["satellite_logs"] = deterministicRandom()->randomInt(1,7);
remoteDcArr.push_back(remoteSatelliteObj);
if (datacenters > 4) {
StatusObject primarySatelliteObjB;
primarySatelliteObjB["id"] = useNormalDCsAsSatellites ? "2" : "4";
primarySatelliteObjB["priority"] = 1;
primarySatelliteObjB["satellite"] = 1;
if (deterministicRandom()->random01() < 0.25) primarySatelliteObjB["satellite_logs"] = deterministicRandom()->randomInt(1,7);
primaryDcArr.push_back(primarySatelliteObjB);
StatusObject remoteSatelliteObjB;
remoteSatelliteObjB["id"] = useNormalDCsAsSatellites ? "2" : "5";
remoteSatelliteObjB["priority"] = 1;
remoteSatelliteObjB["satellite"] = 1;
if (deterministicRandom()->random01() < 0.25) remoteSatelliteObjB["satellite_logs"] = deterministicRandom()->randomInt(1,7);
remoteDcArr.push_back(remoteSatelliteObjB);
}
if (useNormalDCsAsSatellites) {
datacenters = 3;
}
}
primaryObj["datacenters"] = primaryDcArr;
remoteObj["datacenters"] = remoteDcArr;
StatusArray regionArr;
regionArr.push_back(primaryObj);
if(needsRemote || deterministicRandom()->random01() < 0.5) {
regionArr.push_back(remoteObj);
}
set_config("regions=" + json_spirit::write_string(json_spirit::mValue(regionArr), json_spirit::Output_options::none));
if(needsRemote) {
g_simulator.originalRegions = "regions=" + json_spirit::write_string(json_spirit::mValue(regionArr), json_spirit::Output_options::none);
StatusArray disablePrimary = regionArr;
disablePrimary[0].get_obj()["datacenters"].get_array()[0].get_obj()["priority"] = -1;
g_simulator.disablePrimary = "regions=" + json_spirit::write_string(json_spirit::mValue(disablePrimary), json_spirit::Output_options::none);
StatusArray disableRemote = regionArr;
disableRemote[1].get_obj()["datacenters"].get_array()[0].get_obj()["priority"] = -1;
g_simulator.disableRemote = "regions=" + json_spirit::write_string(json_spirit::mValue(disableRemote), json_spirit::Output_options::none);
}
}
if(generateFearless && minimumReplication > 1) {
//low latency tests in fearless configurations need 4 machines per datacenter (3 for triple replication, 1 that is down during failures).
machine_count = 16;
} else if(generateFearless) {
machine_count = 12;
} else if(db.tLogPolicy && db.tLogPolicy->info() == "data_hall^2 x zoneid^2 x 1") {
machine_count = 9;
} else {
//datacenters+2 so that the configure database workload can configure into three_data_hall
machine_count = std::max(datacenters+2, ((db.minDatacentersRequired() > 0) ? datacenters : 1) * std::max(3, db.minZonesRequiredPerDatacenter()));
machine_count = deterministicRandom()->randomInt( machine_count, std::max(machine_count+1, extraDB ? 6 : 10) );
if (generateMachineTeamTestConfig) {
// When DESIRED_TEAMS_PER_SERVER is set to 1, the desired machine team number is 5
// while the max possible machine team number is 10.
// If machine_count > 5, we can still test the effectivenss of machine teams
// Note: machine_count may be much larger than 5 because we may have a big replication factor
machine_count = std::max(machine_count, deterministicRandom()->randomInt(5, extraDB ? 6 : 10));
}
}
//because we protect a majority of coordinators from being killed, it is better to run with low numbers of coordinators to prevent too many processes from being protected
coordinators = ( minimumRegions <= 1 && BUGGIFY ) ? deterministicRandom()->randomInt(1, std::max(machine_count,2)) : 1;
if(minimumReplication > 1 && datacenters == 3) {
//low latency tests in 3 data hall mode need 2 other data centers with 2 machines each to avoid waiting for logs to recover.
machine_count = std::max( machine_count, 6);
coordinators = 3;
}
if(generateFearless) {
processes_per_machine = 1;
} else {
processes_per_machine = deterministicRandom()->randomInt(1, (extraDB ? 14 : 28)/machine_count + 2 );
}
}
void setupSimulatedSystem(vector<Future<Void>>* systemActors, std::string baseFolder, int* pTesterCount,
Optional<ClusterConnectionString>* pConnString, Standalone<StringRef>* pStartingConfiguration,
int extraDB, int minimumReplication, int minimumRegions, std::string whitelistBinPaths, bool configureLocked) {
// SOMEDAY: this does not test multi-interface configurations
SimulationConfig simconfig(extraDB, minimumReplication, minimumRegions);
StatusObject startingConfigJSON = simconfig.db.toJSON(true);
std::string startingConfigString = "new";
if (configureLocked) {
startingConfigString += " locked";
}
for( auto kv : startingConfigJSON) {
startingConfigString += " ";
if( kv.second.type() == json_spirit::int_type ) {
startingConfigString += kv.first + ":=" + format("%d", kv.second.get_int());
} else if( kv.second.type() == json_spirit::str_type ) {
startingConfigString += kv.second.get_str();
} else if( kv.second.type() == json_spirit::array_type ) {
startingConfigString += kv.first + "=" + json_spirit::write_string(json_spirit::mValue(kv.second.get_array()), json_spirit::Output_options::none);
} else {
ASSERT(false);
}
}
g_simulator.storagePolicy = simconfig.db.storagePolicy;
g_simulator.tLogPolicy = simconfig.db.tLogPolicy;
g_simulator.tLogWriteAntiQuorum = simconfig.db.tLogWriteAntiQuorum;
g_simulator.remoteTLogPolicy = simconfig.db.getRemoteTLogPolicy();
g_simulator.usableRegions = simconfig.db.usableRegions;
if(simconfig.db.regions.size() > 0) {
g_simulator.primaryDcId = simconfig.db.regions[0].dcId;
g_simulator.hasSatelliteReplication = simconfig.db.regions[0].satelliteTLogReplicationFactor > 0;
if(simconfig.db.regions[0].satelliteTLogUsableDcsFallback > 0) {
g_simulator.satelliteTLogPolicyFallback = simconfig.db.regions[0].satelliteTLogPolicyFallback;
g_simulator.satelliteTLogWriteAntiQuorumFallback = simconfig.db.regions[0].satelliteTLogWriteAntiQuorumFallback;
} else {
g_simulator.satelliteTLogPolicyFallback = simconfig.db.regions[0].satelliteTLogPolicy;
g_simulator.satelliteTLogWriteAntiQuorumFallback = simconfig.db.regions[0].satelliteTLogWriteAntiQuorum;
}
g_simulator.satelliteTLogPolicy = simconfig.db.regions[0].satelliteTLogPolicy;
g_simulator.satelliteTLogWriteAntiQuorum = simconfig.db.regions[0].satelliteTLogWriteAntiQuorum;
for(auto s : simconfig.db.regions[0].satellites) {
g_simulator.primarySatelliteDcIds.push_back(s.dcId);
}
} else {
g_simulator.hasSatelliteReplication = false;
g_simulator.satelliteTLogWriteAntiQuorum = 0;
}
if(simconfig.db.regions.size() == 2) {
g_simulator.remoteDcId = simconfig.db.regions[1].dcId;
ASSERT((!simconfig.db.regions[0].satelliteTLogPolicy && !simconfig.db.regions[1].satelliteTLogPolicy) || simconfig.db.regions[0].satelliteTLogPolicy->info() == simconfig.db.regions[1].satelliteTLogPolicy->info());
for(auto s : simconfig.db.regions[1].satellites) {
g_simulator.remoteSatelliteDcIds.push_back(s.dcId);
}
}
if(g_simulator.usableRegions < 2 || !g_simulator.hasSatelliteReplication) {
g_simulator.allowLogSetKills = false;
}
ASSERT(g_simulator.storagePolicy && g_simulator.tLogPolicy);
ASSERT(!g_simulator.hasSatelliteReplication || g_simulator.satelliteTLogPolicy);
TraceEvent("SimulatorConfig").detail("ConfigString", StringRef(startingConfigString));
const int dataCenters = simconfig.datacenters;
const int machineCount = simconfig.machine_count;
const int coordinatorCount = simconfig.coordinators;
const int processesPerMachine = simconfig.processes_per_machine;
// half the time, when we have more than 4 machines that are not the first in their dataCenter, assign classes
bool assignClasses = machineCount - dataCenters > 4 && deterministicRandom()->random01() < 0.5;
// Use SSL 5% of the time
bool sslEnabled = deterministicRandom()->random01() < 0.10;
bool sslOnly = sslEnabled && deterministicRandom()->coinflip();
g_simulator.listenersPerProcess = sslEnabled && !sslOnly ? 2 : 1;
TEST( sslEnabled ); // SSL enabled
TEST( !sslEnabled ); // SSL disabled
// Use IPv6 25% of the time
bool useIPv6 = deterministicRandom()->random01() < 0.25;
TEST( useIPv6 );
TEST( !useIPv6 );
vector<NetworkAddress> coordinatorAddresses;
if(minimumRegions > 1) {
//do not put coordinators in the primary region so that we can kill that region safely
int nonPrimaryDcs = dataCenters/2;
for( int dc = 1; dc < dataCenters; dc+=2 ) {
int dcCoordinators = coordinatorCount / nonPrimaryDcs + ((dc-1)/2 < coordinatorCount%nonPrimaryDcs);
for(int m = 0; m < dcCoordinators; m++) {
auto ip = makeIPAddressForSim(useIPv6, { 2, dc, 1, m });
coordinatorAddresses.push_back(NetworkAddress(ip, sslEnabled && !sslOnly ? 2 : 1, true, sslEnabled && sslOnly));
TraceEvent("SelectedCoordinator").detail("Address", coordinatorAddresses.back());
}
}
} else {
int assignedMachines = 0;
int coordCount = coordinatorCount;
if(coordinatorCount>4) {
++coordCount;
}
for( int dc = 0; dc < dataCenters; dc++ ) {
int dcCoordinators = coordCount / dataCenters + (dc < coordCount%dataCenters);
int machines = machineCount / dataCenters + (dc < machineCount % dataCenters);
for(int m = 0; m < dcCoordinators; m++) {
if(coordinatorCount>4 && (assignedMachines==4 || (m+1==dcCoordinators && assignedMachines<4 && assignedMachines+machines-dcCoordinators>=4))) {
auto ip = makeIPAddressForSim(useIPv6, { 2, dc, 1, m });
TraceEvent("SkippedCoordinator")
.detail("Address", ip.toString())
.detail("M", m)
.detail("Machines", machines)
.detail("Assigned", assignedMachines)
.detail("DcCoord", dcCoordinators)
.detail("CoordinatorCount", coordinatorCount);
} else {
auto ip = makeIPAddressForSim(useIPv6, { 2, dc, 1, m });
coordinatorAddresses.push_back(NetworkAddress(ip, sslEnabled && !sslOnly ? 2 : 1, true, sslEnabled && sslOnly));
TraceEvent("SelectedCoordinator").detail("Address", coordinatorAddresses.back()).detail("M", m).detail("Machines", machines).detail("Assigned", assignedMachines).detail("DcCoord", dcCoordinators).detail("P1", (m+1==dcCoordinators)).detail("P2", (assignedMachines<4)).detail("P3", (assignedMachines+machines-dcCoordinators>=4)).detail("CoordinatorCount", coordinatorCount);
}
assignedMachines++;
}
assignedMachines += machines-dcCoordinators;
}
}
deterministicRandom()->randomShuffle(coordinatorAddresses);
for(int i = 0; i < (coordinatorAddresses.size()/2)+1; i++) {
TraceEvent("ProtectCoordinator")
.detail("Address", coordinatorAddresses[i])
.detail("Coordinators", describe(coordinatorAddresses));
g_simulator.protectedAddresses.insert(
NetworkAddress(coordinatorAddresses[i].ip, coordinatorAddresses[i].port, true, coordinatorAddresses[i].isTLS()));
if(coordinatorAddresses[i].port==2) {
g_simulator.protectedAddresses.insert(NetworkAddress(coordinatorAddresses[i].ip, 1, true, true));
}
}
deterministicRandom()->randomShuffle(coordinatorAddresses);
ASSERT( coordinatorAddresses.size() == coordinatorCount );
ClusterConnectionString conn(coordinatorAddresses, LiteralStringRef("TestCluster:0"));
// If extraDB==0, leave g_simulator.extraDB as null because the test does not use DR.
if(extraDB==1) {
// The DR database can be either a new database or itself
g_simulator.extraDB = new ClusterConnectionString(coordinatorAddresses, BUGGIFY ? LiteralStringRef("TestCluster:0") : LiteralStringRef("ExtraCluster:0"));
} else if(extraDB==2) {
// The DR database is a new database
g_simulator.extraDB = new ClusterConnectionString(coordinatorAddresses, LiteralStringRef("ExtraCluster:0"));
} else if(extraDB==3) {
// The DR database is the same database
g_simulator.extraDB = new ClusterConnectionString(coordinatorAddresses, LiteralStringRef("TestCluster:0"));
}
*pConnString = conn;
TraceEvent("SimulatedConnectionString").detail("String", conn.toString()).detail("ConfigString", startingConfigString);
bool requiresExtraDBMachines = extraDB && g_simulator.extraDB->toString() != conn.toString();
int assignedMachines = 0, nonVersatileMachines = 0;
std::vector<ProcessClass::ClassType> processClassesSubSet = {ProcessClass::UnsetClass, ProcessClass::ResolutionClass, ProcessClass::MasterClass};
for( int dc = 0; dc < dataCenters; dc++ ) {
//FIXME: test unset dcID
Optional<Standalone<StringRef>> dcUID = StringRef(format("%d", dc));
std::vector<UID> machineIdentities;
int machines = machineCount / dataCenters + (dc < machineCount % dataCenters); // add remainder of machines to first datacenter
int dcCoordinators = coordinatorCount / dataCenters + (dc < coordinatorCount%dataCenters);
printf("Datacenter %d: %d/%d machines, %d/%d coordinators\n", dc, machines, machineCount, dcCoordinators, coordinatorCount);
ASSERT( dcCoordinators <= machines );
//FIXME: temporarily code to test storage cache
//TODO: caching disabled for this merge
//if(dc==0) {
// machines++;
//}
int useSeedForMachine = deterministicRandom()->randomInt(0, machines);
Standalone<StringRef> zoneId;
Standalone<StringRef> newZoneId;
for( int machine = 0; machine < machines; machine++ ) {
Standalone<StringRef> machineId(deterministicRandom()->randomUniqueID().toString());
if(machine == 0 || machineCount - dataCenters <= 4 || assignedMachines != 4 || simconfig.db.regions.size() || deterministicRandom()->random01() < 0.5) {
zoneId = deterministicRandom()->randomUniqueID().toString();
newZoneId = deterministicRandom()->randomUniqueID().toString();
}
//Choose a machine class
ProcessClass processClass = ProcessClass(ProcessClass::UnsetClass, ProcessClass::CommandLineSource);
if(assignClasses) {
if(assignedMachines < 4)
processClass = ProcessClass((ProcessClass::ClassType) deterministicRandom()->randomInt(0, 2), ProcessClass::CommandLineSource); //Unset or Storage
else if(assignedMachines == 4 && !simconfig.db.regions.size())
processClass = ProcessClass(processClassesSubSet[deterministicRandom()->randomInt(0, processClassesSubSet.size())], ProcessClass::CommandLineSource); //Unset or Resolution or Master
else
processClass = ProcessClass((ProcessClass::ClassType) deterministicRandom()->randomInt(0, 3), ProcessClass::CommandLineSource); //Unset, Storage, or Transaction
if (processClass == ProcessClass::ResolutionClass) // *can't* be assigned to other roles, even in an emergency
nonVersatileMachines++;
}
//FIXME: temporarily code to test storage cache
//TODO: caching disabled for this merge
//if(machine==machines-1 && dc==0) {
// processClass = ProcessClass(ProcessClass::StorageCacheClass, ProcessClass::CommandLineSource);
// nonVersatileMachines++;
//}
std::vector<IPAddress> ips;
for (int i = 0; i < processesPerMachine; i++) {
ips.push_back(makeIPAddressForSim(useIPv6, { 2, dc, deterministicRandom()->randomInt(1, i + 2), machine }));
}
if(requiresExtraDBMachines) {
ips.push_back(makeIPAddressForSim(useIPv6, { 2, dc, 1, machine }));
}
// check the sslEnablementMap using only one ip(
LocalityData localities(Optional<Standalone<StringRef>>(), zoneId, machineId, dcUID);
localities.set(LiteralStringRef("data_hall"), dcUID);
systemActors->push_back(reportErrors(simulatedMachine(conn, ips, sslEnabled,
localities, processClass, baseFolder, false, machine == useSeedForMachine, requiresExtraDBMachines ? AgentOnly : AgentAddition, sslOnly, whitelistBinPaths ), "SimulatedMachine"));
if (requiresExtraDBMachines) {
std::vector<IPAddress> extraIps;
for (int i = 0; i < processesPerMachine; i++){
extraIps.push_back(makeIPAddressForSim(useIPv6, { 4, dc, deterministicRandom()->randomInt(1, i + 2), machine }));
}
Standalone<StringRef> newMachineId(deterministicRandom()->randomUniqueID().toString());
LocalityData localities(Optional<Standalone<StringRef>>(), newZoneId, newMachineId, dcUID);
localities.set(LiteralStringRef("data_hall"), dcUID);
systemActors->push_back(reportErrors(simulatedMachine(*g_simulator.extraDB, extraIps, sslEnabled,
localities,
processClass, baseFolder, false, machine == useSeedForMachine, AgentNone, sslOnly, whitelistBinPaths ), "SimulatedMachine"));
}
assignedMachines++;
}
}
g_simulator.desiredCoordinators = coordinatorCount;
g_simulator.physicalDatacenters = dataCenters;
g_simulator.processesPerMachine = processesPerMachine;
TraceEvent("SetupSimulatorSettings")
.detail("DesiredCoordinators", g_simulator.desiredCoordinators)
.detail("PhysicalDatacenters", g_simulator.physicalDatacenters)
.detail("ProcessesPerMachine", g_simulator.processesPerMachine);
// SOMEDAY: add locality for testers to simulate network topology
// FIXME: Start workers with tester class instead, at least sometimes run tests with the testers-only flag
int testerCount = *pTesterCount = deterministicRandom()->randomInt(4, 9);
int useSeedForMachine = deterministicRandom()->randomInt(0, testerCount);
for(int i=0; i<testerCount; i++) {
std::vector<IPAddress> ips;
ips.push_back(makeIPAddressForSim(useIPv6, { 3, 4, 3, i + 1 }));
Standalone<StringRef> newZoneId = Standalone<StringRef>(deterministicRandom()->randomUniqueID().toString());
LocalityData localities(Optional<Standalone<StringRef>>(), newZoneId, newZoneId, Optional<Standalone<StringRef>>());
systemActors->push_back( reportErrors( simulatedMachine(
conn, ips, sslEnabled && sslOnly,
localities, ProcessClass(ProcessClass::TesterClass, ProcessClass::CommandLineSource),
baseFolder, false, i == useSeedForMachine, AgentNone, sslEnabled && sslOnly, whitelistBinPaths ),
"SimulatedTesterMachine") );
}
*pStartingConfiguration = startingConfigString;
// save some state that we only need when restarting the simulator.
g_simulator.connectionString = conn.toString();
g_simulator.testerCount = testerCount;
TraceEvent("SimulatedClusterStarted")
.detail("DataCenters", dataCenters)
.detail("ServerMachineCount", machineCount)
.detail("ProcessesPerServer", processesPerMachine)
.detail("SSLEnabled", sslEnabled)
.detail("SSLOnly", sslOnly)
.detail("ClassesAssigned", assignClasses)
.detail("StartingConfiguration", pStartingConfiguration->toString());
}
void checkTestConf(const char* testFile, int& extraDB, int& minimumReplication, int& minimumRegions,
int& configureLocked) {
std::ifstream ifs;
ifs.open(testFile, std::ifstream::in);
if (!ifs.good())
return;
std::string cline;
while (ifs.good()) {
getline(ifs, cline);
std::string line = removeWhitespace(std::string(cline));
if (!line.size() || line.find(';') == 0)
continue;
size_t found = line.find('=');
if (found == std::string::npos)
// hmmm, not good
continue;
std::string attrib = removeWhitespace(line.substr(0, found));
std::string value = removeWhitespace(line.substr(found + 1));
if (attrib == "extraDB") {
sscanf( value.c_str(), "%d", &extraDB );
}
if (attrib == "minimumReplication") {
sscanf( value.c_str(), "%d", &minimumReplication );
}
if (attrib == "minimumRegions") {
sscanf( value.c_str(), "%d", &minimumRegions );
}
if (attrib == "configureLocked") {
sscanf(value.c_str(), "%d", &configureLocked);
}
}
ifs.close();
}
ACTOR void setupAndRun(std::string dataFolder, const char *testFile, bool rebooting, bool restoring, std::string whitelistBinPaths) {
state vector<Future<Void>> systemActors;
state Optional<ClusterConnectionString> connFile;
state Standalone<StringRef> startingConfiguration;
state int testerCount = 1;
state int extraDB = 0;
state int minimumReplication = 0;
state int minimumRegions = 0;
state int configureLocked = 0;
checkTestConf(testFile, extraDB, minimumReplication, minimumRegions, configureLocked);
// TODO (IPv6) Use IPv6?
wait(g_simulator.onProcess(
g_simulator.newProcess("TestSystem", IPAddress(0x01010101), 1, false, 1,
LocalityData(Optional<Standalone<StringRef>>(),
Standalone<StringRef>(deterministicRandom()->randomUniqueID().toString()),
Standalone<StringRef>(deterministicRandom()->randomUniqueID().toString()),
Optional<Standalone<StringRef>>()),
ProcessClass(ProcessClass::TesterClass, ProcessClass::CommandLineSource), "", ""),
TaskPriority::DefaultYield));
Sim2FileSystem::newFileSystem();
FlowTransport::createInstance(true, 1);
TEST(true); // Simulation start
try {
//systemActors.push_back( startSystemMonitor(dataFolder) );
if (rebooting) {
wait( timeoutError( restartSimulatedSystem( &systemActors, dataFolder, &testerCount, &connFile, &startingConfiguration, extraDB, whitelistBinPaths), 100.0 ) );
// FIXME: snapshot restore does not support multi-region restore, hence restore it as single region always
if (restoring) {
startingConfiguration = LiteralStringRef("usable_regions=1");
}
}
else {
g_expect_full_pointermap = 1;
setupSimulatedSystem(&systemActors, dataFolder, &testerCount, &connFile, &startingConfiguration, extraDB,
minimumReplication, minimumRegions, whitelistBinPaths, configureLocked);
wait( delay(1.0) ); // FIXME: WHY!!! //wait for machines to boot
}
std::string clusterFileDir = joinPath( dataFolder, deterministicRandom()->randomUniqueID().toString() );
platform::createDirectory( clusterFileDir );
writeFile(joinPath(clusterFileDir, "fdb.cluster"), connFile.get().toString());
wait(timeoutError(runTests(Reference<ClusterConnectionFile>(
new ClusterConnectionFile(joinPath(clusterFileDir, "fdb.cluster"))),
TEST_TYPE_FROM_FILE, TEST_ON_TESTERS, testerCount, testFile, startingConfiguration),
isBuggifyEnabled(BuggifyType::General) ? 36000.0 : 5400.0));
} catch (Error& e) {
TraceEvent(SevError, "SetupAndRunError").error(e);
}
TraceEvent("SimulatedSystemDestruct");
g_simulator.stop();
destructed = true;
wait(Never());
ASSERT(false);
}
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