519 lines
15 KiB
Go
519 lines
15 KiB
Go
// Copyright 2019 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package les
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"flag"
|
|
"io/ioutil"
|
|
"math/rand"
|
|
"os"
|
|
"sync"
|
|
"sync/atomic"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/hexutil"
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"github.com/ethereum/go-ethereum/eth"
|
|
"github.com/ethereum/go-ethereum/eth/downloader"
|
|
"github.com/ethereum/go-ethereum/les/flowcontrol"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/node"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/ethereum/go-ethereum/p2p/simulations"
|
|
"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/mattn/go-colorable"
|
|
)
|
|
|
|
/*
|
|
This test is not meant to be a part of the automatic testing process because it
|
|
runs for a long time and also requires a large database in order to do a meaningful
|
|
request performance test. When testServerDataDir is empty, the test is skipped.
|
|
*/
|
|
|
|
const (
|
|
testServerDataDir = "" // should always be empty on the master branch
|
|
testServerCapacity = 200
|
|
testMaxClients = 10
|
|
testTolerance = 0.1
|
|
minRelCap = 0.2
|
|
)
|
|
|
|
func TestCapacityAPI3(t *testing.T) {
|
|
testCapacityAPI(t, 3)
|
|
}
|
|
|
|
func TestCapacityAPI6(t *testing.T) {
|
|
testCapacityAPI(t, 6)
|
|
}
|
|
|
|
func TestCapacityAPI10(t *testing.T) {
|
|
testCapacityAPI(t, 10)
|
|
}
|
|
|
|
// testCapacityAPI runs an end-to-end simulation test connecting one server with
|
|
// a given number of clients. It sets different priority capacities to all clients
|
|
// except a randomly selected one which runs in free client mode. All clients send
|
|
// similar requests at the maximum allowed rate and the test verifies whether the
|
|
// ratio of processed requests is close enough to the ratio of assigned capacities.
|
|
// Running multiple rounds with different settings ensures that changing capacity
|
|
// while connected and going back and forth between free and priority mode with
|
|
// the supplied API calls is also thoroughly tested.
|
|
func testCapacityAPI(t *testing.T, clientCount int) {
|
|
// Skip test if no data dir specified
|
|
if testServerDataDir == "" {
|
|
return
|
|
}
|
|
for !testSim(t, 1, clientCount, []string{testServerDataDir}, nil, func(ctx context.Context, net *simulations.Network, servers []*simulations.Node, clients []*simulations.Node) bool {
|
|
if len(servers) != 1 {
|
|
t.Fatalf("Invalid number of servers: %d", len(servers))
|
|
}
|
|
server := servers[0]
|
|
|
|
serverRpcClient, err := server.Client()
|
|
if err != nil {
|
|
t.Fatalf("Failed to obtain rpc client: %v", err)
|
|
}
|
|
headNum, headHash := getHead(ctx, t, serverRpcClient)
|
|
minCap, freeCap, totalCap := getCapacityInfo(ctx, t, serverRpcClient)
|
|
testCap := totalCap * 3 / 4
|
|
t.Logf("Server testCap: %d minCap: %d head number: %d head hash: %064x\n", testCap, minCap, headNum, headHash)
|
|
reqMinCap := uint64(float64(testCap) * minRelCap / (minRelCap + float64(len(clients)-1)))
|
|
if minCap > reqMinCap {
|
|
t.Fatalf("Minimum client capacity (%d) bigger than required minimum for this test (%d)", minCap, reqMinCap)
|
|
}
|
|
freeIdx := rand.Intn(len(clients))
|
|
|
|
clientRpcClients := make([]*rpc.Client, len(clients))
|
|
for i, client := range clients {
|
|
var err error
|
|
clientRpcClients[i], err = client.Client()
|
|
if err != nil {
|
|
t.Fatalf("Failed to obtain rpc client: %v", err)
|
|
}
|
|
t.Log("connecting client", i)
|
|
if i != freeIdx {
|
|
setCapacity(ctx, t, serverRpcClient, client.ID(), testCap/uint64(len(clients)))
|
|
}
|
|
net.Connect(client.ID(), server.ID())
|
|
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
t.Fatalf("Timeout")
|
|
default:
|
|
}
|
|
num, hash := getHead(ctx, t, clientRpcClients[i])
|
|
if num == headNum && hash == headHash {
|
|
t.Log("client", i, "synced")
|
|
break
|
|
}
|
|
time.Sleep(time.Millisecond * 200)
|
|
}
|
|
}
|
|
|
|
var wg sync.WaitGroup
|
|
stop := make(chan struct{})
|
|
|
|
reqCount := make([]uint64, len(clientRpcClients))
|
|
|
|
// Send light request like crazy.
|
|
for i, c := range clientRpcClients {
|
|
wg.Add(1)
|
|
i, c := i, c
|
|
go func() {
|
|
defer wg.Done()
|
|
|
|
queue := make(chan struct{}, 100)
|
|
reqCount[i] = 0
|
|
for {
|
|
select {
|
|
case queue <- struct{}{}:
|
|
select {
|
|
case <-stop:
|
|
return
|
|
case <-ctx.Done():
|
|
return
|
|
default:
|
|
wg.Add(1)
|
|
go func() {
|
|
ok := testRequest(ctx, t, c)
|
|
wg.Done()
|
|
<-queue
|
|
if ok {
|
|
count := atomic.AddUint64(&reqCount[i], 1)
|
|
if count%10000 == 0 {
|
|
freezeClient(ctx, t, serverRpcClient, clients[i].ID())
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
case <-stop:
|
|
return
|
|
case <-ctx.Done():
|
|
return
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
processedSince := func(start []uint64) []uint64 {
|
|
res := make([]uint64, len(reqCount))
|
|
for i := range reqCount {
|
|
res[i] = atomic.LoadUint64(&reqCount[i])
|
|
if start != nil {
|
|
res[i] -= start[i]
|
|
}
|
|
}
|
|
return res
|
|
}
|
|
|
|
weights := make([]float64, len(clients))
|
|
for c := 0; c < 5; c++ {
|
|
setCapacity(ctx, t, serverRpcClient, clients[freeIdx].ID(), freeCap)
|
|
freeIdx = rand.Intn(len(clients))
|
|
var sum float64
|
|
for i := range clients {
|
|
if i == freeIdx {
|
|
weights[i] = 0
|
|
} else {
|
|
weights[i] = rand.Float64()*(1-minRelCap) + minRelCap
|
|
}
|
|
sum += weights[i]
|
|
}
|
|
for i, client := range clients {
|
|
weights[i] *= float64(testCap-freeCap-100) / sum
|
|
capacity := uint64(weights[i])
|
|
if i != freeIdx && capacity < getCapacity(ctx, t, serverRpcClient, client.ID()) {
|
|
setCapacity(ctx, t, serverRpcClient, client.ID(), capacity)
|
|
}
|
|
}
|
|
setCapacity(ctx, t, serverRpcClient, clients[freeIdx].ID(), 0)
|
|
for i, client := range clients {
|
|
capacity := uint64(weights[i])
|
|
if i != freeIdx && capacity > getCapacity(ctx, t, serverRpcClient, client.ID()) {
|
|
setCapacity(ctx, t, serverRpcClient, client.ID(), capacity)
|
|
}
|
|
}
|
|
weights[freeIdx] = float64(freeCap)
|
|
for i := range clients {
|
|
weights[i] /= float64(testCap)
|
|
}
|
|
|
|
time.Sleep(flowcontrol.DecParamDelay)
|
|
t.Log("Starting measurement")
|
|
t.Logf("Relative weights:")
|
|
for i := range clients {
|
|
t.Logf(" %f", weights[i])
|
|
}
|
|
t.Log()
|
|
start := processedSince(nil)
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
t.Fatalf("Timeout")
|
|
default:
|
|
}
|
|
|
|
_, _, totalCap = getCapacityInfo(ctx, t, serverRpcClient)
|
|
if totalCap < testCap {
|
|
t.Log("Total capacity underrun")
|
|
close(stop)
|
|
wg.Wait()
|
|
return false
|
|
}
|
|
|
|
processed := processedSince(start)
|
|
var avg uint64
|
|
t.Logf("Processed")
|
|
for i, p := range processed {
|
|
t.Logf(" %d", p)
|
|
processed[i] = uint64(float64(p) / weights[i])
|
|
avg += processed[i]
|
|
}
|
|
avg /= uint64(len(processed))
|
|
|
|
if avg >= 10000 {
|
|
var maxDev float64
|
|
for _, p := range processed {
|
|
dev := float64(int64(p-avg)) / float64(avg)
|
|
t.Logf(" %7.4f", dev)
|
|
if dev < 0 {
|
|
dev = -dev
|
|
}
|
|
if dev > maxDev {
|
|
maxDev = dev
|
|
}
|
|
}
|
|
t.Logf(" max deviation: %f totalCap: %d\n", maxDev, totalCap)
|
|
if maxDev <= testTolerance {
|
|
t.Log("success")
|
|
break
|
|
}
|
|
} else {
|
|
t.Log()
|
|
}
|
|
time.Sleep(time.Millisecond * 200)
|
|
}
|
|
}
|
|
|
|
close(stop)
|
|
wg.Wait()
|
|
|
|
for i, count := range reqCount {
|
|
t.Log("client", i, "processed", count)
|
|
}
|
|
return true
|
|
}) {
|
|
t.Log("restarting test")
|
|
}
|
|
}
|
|
|
|
func getHead(ctx context.Context, t *testing.T, client *rpc.Client) (uint64, common.Hash) {
|
|
res := make(map[string]interface{})
|
|
if err := client.CallContext(ctx, &res, "eth_getBlockByNumber", "latest", false); err != nil {
|
|
t.Fatalf("Failed to obtain head block: %v", err)
|
|
}
|
|
numStr, ok := res["number"].(string)
|
|
if !ok {
|
|
t.Fatalf("RPC block number field invalid")
|
|
}
|
|
num, err := hexutil.DecodeUint64(numStr)
|
|
if err != nil {
|
|
t.Fatalf("Failed to decode RPC block number: %v", err)
|
|
}
|
|
hashStr, ok := res["hash"].(string)
|
|
if !ok {
|
|
t.Fatalf("RPC block number field invalid")
|
|
}
|
|
hash := common.HexToHash(hashStr)
|
|
return num, hash
|
|
}
|
|
|
|
func testRequest(ctx context.Context, t *testing.T, client *rpc.Client) bool {
|
|
var res string
|
|
var addr common.Address
|
|
rand.Read(addr[:])
|
|
c, _ := context.WithTimeout(ctx, time.Second*12)
|
|
err := client.CallContext(c, &res, "eth_getBalance", addr, "latest")
|
|
if err != nil {
|
|
t.Log("request error:", err)
|
|
}
|
|
return err == nil
|
|
}
|
|
|
|
func freezeClient(ctx context.Context, t *testing.T, server *rpc.Client, clientID enode.ID) {
|
|
if err := server.CallContext(ctx, nil, "debug_freezeClient", clientID); err != nil {
|
|
t.Fatalf("Failed to freeze client: %v", err)
|
|
}
|
|
|
|
}
|
|
|
|
func setCapacity(ctx context.Context, t *testing.T, server *rpc.Client, clientID enode.ID, cap uint64) {
|
|
params := make(map[string]interface{})
|
|
params["capacity"] = cap
|
|
if err := server.CallContext(ctx, nil, "les_setClientParams", []enode.ID{clientID}, []string{}, params); err != nil {
|
|
t.Fatalf("Failed to set client capacity: %v", err)
|
|
}
|
|
}
|
|
|
|
func getCapacity(ctx context.Context, t *testing.T, server *rpc.Client, clientID enode.ID) uint64 {
|
|
var res map[enode.ID]map[string]interface{}
|
|
if err := server.CallContext(ctx, &res, "les_clientInfo", []enode.ID{clientID}, []string{}); err != nil {
|
|
t.Fatalf("Failed to get client info: %v", err)
|
|
}
|
|
info, ok := res[clientID]
|
|
if !ok {
|
|
t.Fatalf("Missing client info")
|
|
}
|
|
v, ok := info["capacity"]
|
|
if !ok {
|
|
t.Fatalf("Missing field in client info: capacity")
|
|
}
|
|
vv, ok := v.(float64)
|
|
if !ok {
|
|
t.Fatalf("Failed to decode capacity field")
|
|
}
|
|
return uint64(vv)
|
|
}
|
|
|
|
func getCapacityInfo(ctx context.Context, t *testing.T, server *rpc.Client) (minCap, freeCap, totalCap uint64) {
|
|
var res map[string]interface{}
|
|
if err := server.CallContext(ctx, &res, "les_serverInfo"); err != nil {
|
|
t.Fatalf("Failed to query server info: %v", err)
|
|
}
|
|
decode := func(s string) uint64 {
|
|
v, ok := res[s]
|
|
if !ok {
|
|
t.Fatalf("Missing field in server info: %s", s)
|
|
}
|
|
vv, ok := v.(float64)
|
|
if !ok {
|
|
t.Fatalf("Failed to decode server info field: %s", s)
|
|
}
|
|
return uint64(vv)
|
|
}
|
|
minCap = decode("minimumCapacity")
|
|
freeCap = decode("freeClientCapacity")
|
|
totalCap = decode("totalCapacity")
|
|
return
|
|
}
|
|
|
|
func init() {
|
|
flag.Parse()
|
|
// register the Delivery service which will run as a devp2p
|
|
// protocol when using the exec adapter
|
|
adapters.RegisterServices(services)
|
|
|
|
log.PrintOrigins(true)
|
|
log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(*loglevel), log.StreamHandler(colorable.NewColorableStderr(), log.TerminalFormat(true))))
|
|
}
|
|
|
|
var (
|
|
adapter = flag.String("adapter", "exec", "type of simulation: sim|socket|exec|docker")
|
|
loglevel = flag.Int("loglevel", 0, "verbosity of logs")
|
|
nodes = flag.Int("nodes", 0, "number of nodes")
|
|
)
|
|
|
|
var services = adapters.Services{
|
|
"lesclient": newLesClientService,
|
|
"lesserver": newLesServerService,
|
|
}
|
|
|
|
func NewNetwork() (*simulations.Network, func(), error) {
|
|
adapter, adapterTeardown, err := NewAdapter(*adapter, services)
|
|
if err != nil {
|
|
return nil, adapterTeardown, err
|
|
}
|
|
defaultService := "streamer"
|
|
net := simulations.NewNetwork(adapter, &simulations.NetworkConfig{
|
|
ID: "0",
|
|
DefaultService: defaultService,
|
|
})
|
|
teardown := func() {
|
|
adapterTeardown()
|
|
net.Shutdown()
|
|
}
|
|
return net, teardown, nil
|
|
}
|
|
|
|
func NewAdapter(adapterType string, services adapters.Services) (adapter adapters.NodeAdapter, teardown func(), err error) {
|
|
teardown = func() {}
|
|
switch adapterType {
|
|
case "sim":
|
|
adapter = adapters.NewSimAdapter(services)
|
|
// case "socket":
|
|
// adapter = adapters.NewSocketAdapter(services)
|
|
case "exec":
|
|
baseDir, err0 := ioutil.TempDir("", "les-test")
|
|
if err0 != nil {
|
|
return nil, teardown, err0
|
|
}
|
|
teardown = func() { os.RemoveAll(baseDir) }
|
|
adapter = adapters.NewExecAdapter(baseDir)
|
|
/*case "docker":
|
|
adapter, err = adapters.NewDockerAdapter()
|
|
if err != nil {
|
|
return nil, teardown, err
|
|
}*/
|
|
default:
|
|
return nil, teardown, errors.New("adapter needs to be one of sim, socket, exec, docker")
|
|
}
|
|
return adapter, teardown, nil
|
|
}
|
|
|
|
func testSim(t *testing.T, serverCount, clientCount int, serverDir, clientDir []string, test func(ctx context.Context, net *simulations.Network, servers []*simulations.Node, clients []*simulations.Node) bool) bool {
|
|
net, teardown, err := NewNetwork()
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatalf("Failed to create network: %v", err)
|
|
}
|
|
timeout := 1800 * time.Second
|
|
ctx, cancel := context.WithTimeout(context.Background(), timeout)
|
|
defer cancel()
|
|
|
|
servers := make([]*simulations.Node, serverCount)
|
|
clients := make([]*simulations.Node, clientCount)
|
|
|
|
for i := range clients {
|
|
clientconf := adapters.RandomNodeConfig()
|
|
clientconf.Services = []string{"lesclient"}
|
|
if len(clientDir) == clientCount {
|
|
clientconf.DataDir = clientDir[i]
|
|
}
|
|
client, err := net.NewNodeWithConfig(clientconf)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create client: %v", err)
|
|
}
|
|
clients[i] = client
|
|
}
|
|
|
|
for i := range servers {
|
|
serverconf := adapters.RandomNodeConfig()
|
|
serverconf.Services = []string{"lesserver"}
|
|
if len(serverDir) == serverCount {
|
|
serverconf.DataDir = serverDir[i]
|
|
}
|
|
server, err := net.NewNodeWithConfig(serverconf)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create server: %v", err)
|
|
}
|
|
servers[i] = server
|
|
}
|
|
|
|
for _, client := range clients {
|
|
if err := net.Start(client.ID()); err != nil {
|
|
t.Fatalf("Failed to start client node: %v", err)
|
|
}
|
|
}
|
|
for _, server := range servers {
|
|
if err := net.Start(server.ID()); err != nil {
|
|
t.Fatalf("Failed to start server node: %v", err)
|
|
}
|
|
}
|
|
|
|
return test(ctx, net, servers, clients)
|
|
}
|
|
|
|
func newLesClientService(ctx *adapters.ServiceContext) (node.Service, error) {
|
|
config := eth.DefaultConfig
|
|
config.SyncMode = downloader.LightSync
|
|
config.Ethash.PowMode = ethash.ModeFake
|
|
return New(ctx.NodeContext, &config)
|
|
}
|
|
|
|
func newLesServerService(ctx *adapters.ServiceContext) (node.Service, error) {
|
|
config := eth.DefaultConfig
|
|
config.SyncMode = downloader.FullSync
|
|
config.LightServ = testServerCapacity
|
|
config.LightPeers = testMaxClients
|
|
ethereum, err := eth.New(ctx.NodeContext, &config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
server, err := NewLesServer(ethereum, &config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ethereum.AddLesServer(server)
|
|
return ethereum, nil
|
|
}
|