469 lines
23 KiB
C++
469 lines
23 KiB
C++
/*
|
|
* RemoveServersSafely.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 "fdbclient/NativeAPI.actor.h"
|
|
#include "fdbserver/TesterInterface.actor.h"
|
|
#include "fdbserver/WorkerInterface.actor.h"
|
|
#include "fdbserver/workloads/workloads.actor.h"
|
|
#include "fdbrpc/simulator.h"
|
|
#include "fdbclient/ManagementAPI.actor.h"
|
|
#include "flow/actorcompiler.h" // This must be the last #include.
|
|
|
|
template <>
|
|
std::string describe( uint32_t const& item ) {
|
|
return format("%d", item);
|
|
}
|
|
|
|
struct RemoveServersSafelyWorkload : TestWorkload {
|
|
bool enabled, killProcesses;
|
|
int minMachinesToKill, maxMachinesToKill;
|
|
double minDelay, maxDelay;
|
|
double kill1Timeout, kill2Timeout;
|
|
|
|
std::set<AddressExclusion> toKill1, toKill2;
|
|
std::map<AddressExclusion, Optional<Standalone<StringRef>>> machine_ids; // ip -> Locality Zone id
|
|
std::map<AddressExclusion, std::set<AddressExclusion>> machineProcesses; // ip -> ip:port
|
|
|
|
RemoveServersSafelyWorkload( WorkloadContext const& wcx )
|
|
: TestWorkload(wcx)
|
|
{
|
|
enabled = !clientId && g_network->isSimulated(); // only do this on the "first" client, and only when in simulation
|
|
minMachinesToKill = getOption( options, LiteralStringRef("minMachinesToKill"), 1 );
|
|
maxMachinesToKill = getOption( options, LiteralStringRef("maxMachinesToKill"), 10 );
|
|
maxMachinesToKill = std::max(minMachinesToKill, maxMachinesToKill);
|
|
minDelay = getOption( options, LiteralStringRef("minDelay"), 0.0 );
|
|
maxDelay = getOption( options, LiteralStringRef("maxDelay"), 60.0 );
|
|
kill1Timeout = getOption( options, LiteralStringRef("kill1Timeout"), 60.0 );
|
|
kill2Timeout = getOption( options, LiteralStringRef("kill2Timeout"), 6000.0 );
|
|
killProcesses = deterministicRandom()->random01() < 0.5;
|
|
if(g_network->isSimulated()) {
|
|
g_simulator.allowLogSetKills = false;
|
|
}
|
|
}
|
|
|
|
virtual std::string description() { return "RemoveServersSafelyWorkload"; }
|
|
virtual Future<Void> setup( Database const& cx ) {
|
|
if( !enabled )
|
|
return Void();
|
|
|
|
std::map<Optional<Standalone<StringRef>>, AddressExclusion> machinesMap; // Locality Zone Id -> ip address
|
|
std::vector<AddressExclusion> processAddrs; // IF (killProcesses) THEN ip:port ELSE ip addresses unique list of the machines
|
|
std::map<IPAddress, Optional<Standalone<StringRef>>> ip_dcid;
|
|
auto processes = getServers();
|
|
for(auto& it : processes) {
|
|
AddressExclusion machineIp(it->address.ip);
|
|
AddressExclusion pAddr(it->address.ip, it->address.port);
|
|
|
|
TraceEvent("RemoveAndKill").detail("Step", "listAddresses")
|
|
.detail("Address", pAddr.toString()).detail("Process",describe(*it));
|
|
|
|
if (g_simulator.protectedAddresses.count(it->address) == 0)
|
|
processAddrs.push_back(pAddr);
|
|
machineProcesses[machineIp].insert(pAddr);
|
|
|
|
// add only one entry for each machine
|
|
if (!machinesMap.count(it->locality.zoneId()))
|
|
machinesMap[it->locality.zoneId()] = machineIp;
|
|
|
|
machine_ids[machineIp] = it->locality.zoneId();
|
|
ip_dcid[it->address.ip] = it->locality.dcId();
|
|
}
|
|
|
|
int processCount = processAddrs.size();
|
|
int nToKill1 = deterministicRandom()->randomInt( std::min(processCount,minMachinesToKill), std::min(processCount,maxMachinesToKill)+1 );
|
|
int nToKill2 = deterministicRandom()->randomInt( std::min(processCount,minMachinesToKill), std::min(processCount,maxMachinesToKill)+1 );
|
|
toKill1 = random_subset( processAddrs, nToKill1 );
|
|
toKill2 = random_subset( processAddrs, nToKill2 );
|
|
|
|
if (!killProcesses) {
|
|
std::set<AddressExclusion> processSet;
|
|
|
|
for (auto k1 : toKill1) {
|
|
AddressExclusion machineIp(k1.ip);
|
|
ASSERT(machineProcesses.count(machineIp));
|
|
// kill all processes on this machine even if it has a different ip address
|
|
std::copy(machineProcesses[machineIp].begin(), machineProcesses[machineIp].end(), std::inserter(processSet,processSet.end()));
|
|
}
|
|
toKill1.insert(processSet.begin(), processSet.end());
|
|
|
|
processSet.clear();
|
|
for (auto k2 : toKill2) {
|
|
AddressExclusion machineIp(k2.ip);
|
|
ASSERT(machineProcesses.count(machineIp));
|
|
std::copy(machineProcesses[machineIp].begin(), machineProcesses[machineIp].end(), std::inserter(processSet,processSet.end()));
|
|
}
|
|
toKill2.insert(processSet.begin(), processSet.end());
|
|
}
|
|
|
|
std::vector<NetworkAddress> disableAddrs1;
|
|
for( AddressExclusion ex : toKill1 ) {
|
|
AddressExclusion machineIp(ex.ip);
|
|
ASSERT(machine_ids.count(machineIp));
|
|
g_simulator.disableSwapToMachine(machine_ids[machineIp]);
|
|
}
|
|
|
|
std::vector<NetworkAddress> disableAddrs2;
|
|
for( AddressExclusion ex : toKill2 ) {
|
|
AddressExclusion machineIp(ex.ip);
|
|
ASSERT(machine_ids.count(machineIp));
|
|
g_simulator.disableSwapToMachine(machine_ids[machineIp]);
|
|
}
|
|
|
|
return Void();
|
|
}
|
|
|
|
virtual Future<Void> start( Database const& cx ) {
|
|
if (!enabled) return Void();
|
|
double delay = deterministicRandom()->random01() * (maxDelay-minDelay) + minDelay;
|
|
return workloadMain( this, cx, delay, toKill1, toKill2 );
|
|
}
|
|
|
|
virtual Future<bool> check( Database const& cx ) { return true; }
|
|
|
|
virtual void getMetrics( vector<PerfMetric>& ) {
|
|
}
|
|
|
|
virtual std::set<AddressExclusion> getNetworks(std::vector<ISimulator::ProcessInfo*> const& processes)
|
|
{
|
|
std::set<AddressExclusion> processAddrs;
|
|
|
|
for (auto& processInfo : processes) {
|
|
processAddrs.insert(AddressExclusion(processInfo->address.ip, processInfo->address.port));
|
|
}
|
|
return processAddrs;
|
|
}
|
|
|
|
virtual std::vector<ISimulator::ProcessInfo*> getProcesses(std::set<AddressExclusion> const& netAddrs)
|
|
{
|
|
std::vector<ISimulator::ProcessInfo*> processes;
|
|
std::set<AddressExclusion> processAddrs;
|
|
UID functionId = nondeterministicRandom()->randomUniqueID();
|
|
|
|
// Get the list of process network addresses
|
|
for (auto& netAddr : netAddrs) {
|
|
auto machineIpPorts = machineProcesses.find(netAddr);
|
|
if (machineIpPorts != machineProcesses.end()) {
|
|
ASSERT(machineIpPorts->second.size());
|
|
for (auto& processAdd : machineIpPorts->second)
|
|
processAddrs.insert(processAdd);
|
|
}
|
|
else {
|
|
processAddrs.insert(netAddr);
|
|
}
|
|
}
|
|
// Get the list of processes matching network address
|
|
for (auto processInfo : g_simulator.getAllProcesses()) {
|
|
auto processNet = AddressExclusion(processInfo->address.ip, processInfo->address.port);
|
|
if (processAddrs.find(processNet) != processAddrs.end()) {
|
|
processes.push_back(processInfo);
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "getProcessItem").detail("ProcessAddress", processInfo->address).detail("Process", describe(*processInfo)).detail("Failed", processInfo->failed).detail("Excluded", processInfo->excluded).detail("Rebooting", processInfo->rebooting).detail("Protected", g_simulator.protectedAddresses.count(processInfo->address));
|
|
}
|
|
else {
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "getProcessNoItem").detail("ProcessAddress", processInfo->address).detail("Process", describe(*processInfo)).detail("Failed", processInfo->failed).detail("Excluded", processInfo->excluded).detail("Rebooting", processInfo->rebooting).detail("Protected", g_simulator.protectedAddresses.count(processInfo->address));
|
|
}
|
|
}
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "getProcesses")
|
|
.detail("NetAddrSize",netAddrs.size()).detail("ProcessAddrSize",processAddrs.size())
|
|
.detail("NetAddrs",describe(netAddrs)).detail("ProcessAddrs",describe(processAddrs))
|
|
.detail("Proceses", processes.size()).detail("MachineProcesses", machineProcesses.size());
|
|
|
|
return processes;
|
|
}
|
|
|
|
virtual std::vector<ISimulator::ProcessInfo*> excludeAddresses(std::set<AddressExclusion> const& procAddrs)
|
|
{
|
|
// Get the updated list of processes which may have changed due to reboots, deletes, etc
|
|
std::vector<ISimulator::ProcessInfo*> procArray = getProcesses(procAddrs);
|
|
|
|
// Include all of the excluded machines because the first command of the next section is includeall
|
|
TraceEvent("RemoveAndKill").detail("Step", "exclude addresses").detail("AddrTotal", procAddrs.size()).detail("ProcTotal", procArray.size()).detail("Addresses", describe(procAddrs)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
for (auto& procAddr : procAddrs) {
|
|
g_simulator.excludeAddress(NetworkAddress(procAddr.ip, procAddr.port, true, false));
|
|
}
|
|
for (auto& procRecord : procArray) {
|
|
procRecord->excluded = true;
|
|
TraceEvent("RemoveAndKill").detail("Step", "ExcludeAddress").detail("ProcessAddress", procRecord->address).detail("Process", describe(*procRecord)).detail("Failed", procRecord->failed).detail("Rebooting", procRecord->rebooting).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
return procArray;
|
|
}
|
|
|
|
virtual std::vector<ISimulator::ProcessInfo*> includeAddresses(std::set<AddressExclusion> const& procAddrs)
|
|
{
|
|
// Get the updated list of processes which may have changed due to reboots, deletes, etc
|
|
std::vector<ISimulator::ProcessInfo*> procArray = getProcesses(procAddrs);
|
|
|
|
// Include all of the excluded machines because the first command of the next section is includeall
|
|
TraceEvent("RemoveAndKill").detail("Step", "include addresses").detail("AddrTotal", procAddrs.size()).detail("ProcTotal", procArray.size()).detail("Addresses", describe(procAddrs)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
for (auto& procAddr : procAddrs) {
|
|
g_simulator.includeAddress(NetworkAddress(procAddr.ip, procAddr.port, true, false));
|
|
}
|
|
for (auto& procRecord : procArray) {
|
|
// Only change the exclusion member, if not failed since it will require a reboot to revive it
|
|
if (!procRecord->failed)
|
|
procRecord->excluded = false;
|
|
TraceEvent("RemoveAndKill").detail("Step", "IncludeAddress").detail("ProcessAddress", procRecord->address).detail("Process", describe(*procRecord)).detail("Failed", procRecord->failed).detail("Rebooting", procRecord->rebooting).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
return procArray;
|
|
}
|
|
|
|
virtual std::vector<ISimulator::ProcessInfo*> protectServers(std::set<AddressExclusion> const& killAddrs)
|
|
{
|
|
std::vector<ISimulator::ProcessInfo*> processes;
|
|
std::set<AddressExclusion> processAddrs;
|
|
std::vector<AddressExclusion> killableAddrs;
|
|
std::vector<ISimulator::ProcessInfo*> killProcArray, killableProcesses, processesLeft, processesDead;
|
|
|
|
// Get the list of processes matching network address
|
|
for (auto processInfo : getServers()) {
|
|
auto processNet = AddressExclusion(processInfo->address.ip, processInfo->address.port);
|
|
// Mark all of the unavailable as dead
|
|
if (!processInfo->isAvailable() || processInfo->isCleared())
|
|
processesDead.push_back(processInfo);
|
|
// Save all processes not specified within set
|
|
else if (killAddrs.find(processNet) == killAddrs.end())
|
|
processesLeft.push_back(processInfo);
|
|
else
|
|
killProcArray.push_back(processInfo);
|
|
}
|
|
|
|
// Identify the largest set of processes which can be killed
|
|
int randomIndex;
|
|
bool bCanKillProcess;
|
|
ISimulator::ProcessInfo* randomProcess;
|
|
|
|
for (int killsLeft = killProcArray.size(); killsLeft > 0; killsLeft --)
|
|
{
|
|
// Select a random kill process
|
|
randomIndex = deterministicRandom()->randomInt(0, killsLeft);
|
|
randomProcess = killProcArray[randomIndex];
|
|
processesDead.push_back(randomProcess);
|
|
killProcArray[randomIndex] = killProcArray.back();
|
|
killProcArray.pop_back();
|
|
// Add all of the remaining processes the leftover array
|
|
processesLeft.insert(processesLeft.end(), killProcArray.begin(), killProcArray.end());
|
|
|
|
// Check if we can kill the added process
|
|
bCanKillProcess = g_simulator.canKillProcesses(processesLeft, processesDead, ISimulator::KillInstantly, NULL);
|
|
|
|
// Remove the added processes
|
|
processesLeft.resize(processesLeft.size() - killProcArray.size());
|
|
|
|
if (bCanKillProcess) {
|
|
killableProcesses.push_back(randomProcess);
|
|
killableAddrs.push_back(AddressExclusion(randomProcess->address.ip, randomProcess->address.port));
|
|
TraceEvent("RemoveAndKill")
|
|
.detail("Step", "identifyVictim")
|
|
.detail("VictimCount", killableAddrs.size())
|
|
.detail("Victim", randomProcess->toString())
|
|
.detail("Victims", describe(killableAddrs));
|
|
}
|
|
// Move the process to the keep array
|
|
else {
|
|
processesLeft.push_back(randomProcess);
|
|
processesDead.pop_back();
|
|
}
|
|
}
|
|
|
|
return killableProcesses;
|
|
}
|
|
|
|
ACTOR static Future<Void> workloadMain( RemoveServersSafelyWorkload* self, Database cx, double waitSeconds,
|
|
std::set<AddressExclusion> toKill1, std::set<AddressExclusion> toKill2 ) {
|
|
wait( delay( waitSeconds ) );
|
|
|
|
// Removing the first set of machines might legitimately bring the database down, so a timeout is not an error
|
|
state std::vector<NetworkAddress> firstCoordinators;
|
|
state std::vector<ISimulator::ProcessInfo*> killProcArray;
|
|
state bool bClearedFirst;
|
|
|
|
TraceEvent("RemoveAndKill").detail("Step", "exclude list first").detail("ToKill", describe(toKill1)).detail("KillTotal", toKill1.size()).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
self->excludeAddresses(toKill1);
|
|
|
|
Optional<Void> result = wait( timeout( removeAndKill( self, cx, toKill1, NULL), self->kill1Timeout ) );
|
|
|
|
bClearedFirst = result.present();
|
|
|
|
TraceEvent("RemoveAndKill").detail("Step", "excluded list first").detail("Excluderesult", bClearedFirst ? "succeeded" : "failed").detail("KillTotal", toKill1.size()).detail("Processes", killProcArray.size()).detail("ToKill1", describe(toKill1)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
|
|
bClearedFirst=false;
|
|
// Include the servers, if unable to exclude
|
|
if (!bClearedFirst) {
|
|
// Get the updated list of processes which may have changed due to reboots, deletes, etc
|
|
TraceEvent("RemoveAndKill").detail("Step", "include all first").detail("KillTotal", toKill1.size()).detail("ToKill", describe(toKill1)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( includeServers( cx, vector<AddressExclusion>(1) ) );
|
|
self->includeAddresses(toKill1);
|
|
TraceEvent("RemoveAndKill").detail("Step", "included all first").detail("KillTotal", toKill1.size()).detail("ToKill", describe(toKill1)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
|
|
// Get the list of protected servers
|
|
killProcArray = self->protectServers(toKill2);
|
|
|
|
// Update the kill networks to the killable processes
|
|
toKill2 = self->getNetworks(killProcArray);
|
|
|
|
TraceEvent("RemoveAndKill").detail("Step", "exclude list second").detail("KillTotal", toKill2.size()).detail("ToKill", describe(toKill2)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
self->excludeAddresses(toKill2);
|
|
|
|
// The second set of machines is selected so that we can always make progress without it, even after the permitted number of other permanent failures
|
|
// so we expect to succeed after a finite amount of time
|
|
TraceEvent("RemoveAndKill").detail("Step", "exclude second list").detail("ToKill2", describe(toKill2)).detail("KillTotal", toKill2.size())
|
|
.detail("Processes", killProcArray.size()).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( reportErrors( timeoutError( removeAndKill( self, cx, toKill2, bClearedFirst ? &toKill1 : NULL), self->kill2Timeout ), "RemoveServersSafelyError", UID() ) );
|
|
|
|
TraceEvent("RemoveAndKill").detail("Step", "excluded second list").detail("KillTotal", toKill1.size()).detail("ToKill", describe(toKill2)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
|
|
// Reinclude all of the machine, if buggified
|
|
if (BUGGIFY) {
|
|
// Get the updated list of processes which may have changed due to reboots, deletes, etc
|
|
TraceEvent("RemoveAndKill").detail("Step", "include all second").detail("KillTotal", toKill1.size()).detail("ToKill", describe(toKill2)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( includeServers( cx, vector<AddressExclusion>(1) ) );
|
|
self->includeAddresses(toKill2);
|
|
TraceEvent("RemoveAndKill").detail("Step", "included all second").detail("KillTotal", toKill1.size()).detail("ToKill", describe(toKill2)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
|
|
return Void();
|
|
}
|
|
|
|
virtual std::vector<ISimulator::ProcessInfo*> killAddresses(std::set<AddressExclusion> const& killAddrs)
|
|
{
|
|
UID functionId = nondeterministicRandom()->randomUniqueID();
|
|
bool removeViaClear = !BUGGIFY;
|
|
std::vector<ISimulator::ProcessInfo*> killProcArray;
|
|
std::vector<AddressExclusion> toKillArray;
|
|
|
|
std::copy(killAddrs.begin(), killAddrs.end(), std::back_inserter(toKillArray));
|
|
killProcArray = getProcesses(killAddrs);
|
|
|
|
// Reboot and delete or kill the servers
|
|
if( killProcesses ) {
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", removeViaClear ? "ClearProcesses" : "IgnoreProcesses").detail("Addresses", describe(killAddrs))
|
|
.detail("Processes", killProcArray.size()).detail("ClusterAvailable", g_simulator.isAvailable()).detail("RemoveViaClear", removeViaClear);
|
|
for (auto& killProcess : killProcArray) {
|
|
if (g_simulator.protectedAddresses.count(killProcess->address))
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "NoKill Process").detail("Process", describe(*killProcess)).detail("Failed", killProcess->failed).detail("Rebooting", killProcess->rebooting).detail("ClusterAvailable", g_simulator.isAvailable()).detail("Protected", g_simulator.protectedAddresses.count(killProcess->address));
|
|
else if (removeViaClear) {
|
|
g_simulator.rebootProcess( killProcess, ISimulator::RebootProcessAndDelete);
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "Clear Process").detail("Process", describe(*killProcess)).detail("Failed", killProcess->failed).detail("Rebooting", killProcess->rebooting).detail("ClusterAvailable", g_simulator.isAvailable()).detail("Protected", g_simulator.protectedAddresses.count(killProcess->address));
|
|
}
|
|
/*
|
|
else {
|
|
g_simulator.killProcess( killProcess, ISimulator::KillInstantly );
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "Kill Process").detail("Process", describe(*killProcess)).detail("Failed", killProcess->failed).detail("Rebooting", killProcess->rebooting).detail("ClusterAvailable", g_simulator.isAvailable()).detail("Protected", g_simulator.protectedAddresses.count(killProcess->address));
|
|
}
|
|
*/
|
|
}
|
|
}
|
|
else {
|
|
std::set<Optional<Standalone<StringRef>>> zoneIds;
|
|
bool killedMachine;
|
|
for (auto& killProcess : killProcArray) {
|
|
zoneIds.insert(killProcess->locality.zoneId());
|
|
}
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", removeViaClear ? "ClearMachines" : "KillMachines").detail("Addresses", describe(killAddrs)).detail("Processes", killProcArray.size()).detail("Zones", zoneIds.size()).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
for (auto& zoneId : zoneIds) {
|
|
killedMachine = g_simulator.killZone( zoneId, removeViaClear ? ISimulator::RebootAndDelete : ISimulator::KillInstantly );
|
|
TraceEvent(killedMachine ? SevInfo : SevWarn, "RemoveAndKill").detail("Step", removeViaClear ? "Clear Machine" : "Kill Machine").detail("ZoneId", zoneId).detail(removeViaClear ? "Cleared" : "Killed", killedMachine).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
}
|
|
|
|
return killProcArray;
|
|
}
|
|
|
|
ACTOR static Future<Void> removeAndKill( RemoveServersSafelyWorkload* self, Database cx, std::set<AddressExclusion> toKill, std::set<AddressExclusion>* pIncAddrs)
|
|
{
|
|
state UID functionId = nondeterministicRandom()->randomUniqueID();
|
|
|
|
// First clear the exclusion list and exclude the given list
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "include all").detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( includeServers( cx, vector<AddressExclusion>(1) ) );
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "included all").detail("ClusterAvailable", g_simulator.isAvailable());
|
|
// Reinclude the addresses that were excluded, if present
|
|
if (pIncAddrs) {
|
|
self->includeAddresses(*pIncAddrs);
|
|
}
|
|
|
|
state std::vector<ISimulator::ProcessInfo*> killProcArray;
|
|
state std::vector<AddressExclusion> toKillArray;
|
|
|
|
std::copy(toKill.begin(), toKill.end(), std::back_inserter(toKillArray));
|
|
killProcArray = self->getProcesses(toKill);
|
|
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "Activate Server Exclusion").detail("KillAddrs", toKill.size()).detail("KillProcs", killProcArray.size()).detail("MissingProcs", toKill.size()!=killProcArray.size()).detail("ToKill", describe(toKill)).detail("Addresses", describe(toKillArray)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( excludeServers( cx, toKillArray ) );
|
|
|
|
// We need to skip at least the quorum change if there's nothing to kill, because there might not be enough servers left
|
|
// alive to do a coordinators auto (?)
|
|
if (toKill.size()) {
|
|
// Wait for removal to be safe
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "Wait For Server Exclusion").detail("Addresses", describe(toKill)).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
wait( waitForExcludedServers( cx, toKillArray ) );
|
|
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "coordinators auto").detail("DesiredCoordinators", g_simulator.desiredCoordinators).detail("ClusterAvailable", g_simulator.isAvailable());
|
|
|
|
// Setup the coordinators BEFORE the exclusion
|
|
// Otherwise, we may end up with NotEnoughMachinesForCoordinators
|
|
state int cycle=0;
|
|
state int nQuorum;
|
|
while (true) {
|
|
cycle ++;
|
|
nQuorum = ((g_simulator.desiredCoordinators+1)/2)*2-1;
|
|
CoordinatorsResult::Type result = wait( changeQuorum( cx, autoQuorumChange(nQuorum) ) );
|
|
TraceEvent(result==CoordinatorsResult::SUCCESS || result==CoordinatorsResult::SAME_NETWORK_ADDRESSES ? SevInfo : SevWarn, "RemoveAndKillQuorumChangeResult").detail("Step", "coordinators auto").detail("Result", (int)result).detail("Attempt", cycle).detail("Quorum", nQuorum).detail("DesiredCoordinators", g_simulator.desiredCoordinators);
|
|
if (result==CoordinatorsResult::SUCCESS || result==CoordinatorsResult::SAME_NETWORK_ADDRESSES)
|
|
break;
|
|
}
|
|
|
|
self->killAddresses(toKill);
|
|
}
|
|
else
|
|
{
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "nothing to clear").detail("ClusterAvailable", g_simulator.isAvailable());
|
|
}
|
|
|
|
TraceEvent("RemoveAndKill", functionId).detail("Step", "done").detail("ClusterAvailable", g_simulator.isAvailable());
|
|
|
|
return Void();
|
|
}
|
|
|
|
static vector<ISimulator::ProcessInfo*> getServers() {
|
|
vector<ISimulator::ProcessInfo*> machines;
|
|
vector<ISimulator::ProcessInfo*> all = g_simulator.getAllProcesses();
|
|
for(int i = 0; i < all.size(); i++)
|
|
if (all[i]->name == std::string("Server") && all[i]->isAvailableClass())
|
|
machines.push_back( all[i] );
|
|
return machines;
|
|
}
|
|
|
|
template <class T> static std::set<T> random_subset( std::vector<T> v, int n ) {
|
|
std::set<T> subset;
|
|
// No, this isn't efficient!
|
|
deterministicRandom()->randomShuffle(v);
|
|
v.resize(n);
|
|
std::copy(v.begin(), v.end(), std::inserter(subset,subset.end()));
|
|
return subset;
|
|
}
|
|
|
|
bool killContainsProcess(AddressExclusion kill, NetworkAddress process) {
|
|
return kill.excludes(process) || (machineProcesses.find(kill) != machineProcesses.end() && machineProcesses[kill].count(AddressExclusion(process.ip, process.port)) > 0);
|
|
}
|
|
};
|
|
|
|
WorkloadFactory<RemoveServersSafelyWorkload> RemoveServersSafelyWorkloadFactory("RemoveServersSafely");
|