Bring back the accidentally ignored txgen folder and change it to txgenerator to avoid the gitignore mistake

pull/17/head
Rongjian Lan 6 years ago
parent c8627fa32a
commit 383a8406a5
  1. 355
      client/txgenerator/main.go
  2. 2
      deploy.sh

@ -0,0 +1,355 @@
package main
import (
"bufio"
"encoding/hex"
"flag"
"fmt"
"harmony-benchmark/blockchain"
"harmony-benchmark/client"
"harmony-benchmark/consensus"
"harmony-benchmark/log"
"harmony-benchmark/node"
"harmony-benchmark/p2p"
"math/rand"
"os"
"strconv"
"strings"
"sync"
"time"
)
var utxoPoolMutex sync.Mutex
// Generates at most "maxNumTxs" number of simulated transactions based on the current UtxoPools of all shards.
// The transactions are generated by going through the existing utxos and
// randomly select a subset of them as the input for each new transaction. The output
// address of the new transaction are randomly selected from [0 - N), where N is the total number of fake addresses.
//
// When crossShard=true, besides the selected utxo input, select another valid utxo as input from the same address in a second shard.
// Similarly, generate another utxo output in that second shard.
//
// NOTE: the genesis block should contain N coinbase transactions which add
// token (1000) to each address in [0 - N). See node.AddTestingAddresses()
//
// Params:
// shardId - the shardId for current shard
// dataNodes - nodes containing utxopools of all shards
// maxNumTxs - the max number of txs to generate
// crossShard - whether to generate cross shard txs
// Returns:
// all single-shard txs
// all cross-shard txs
func generateSimulatedTransactions(shardId int, dataNodes []*node.Node, maxNumTxs int, crossShard bool) ([]*blockchain.Transaction, []*blockchain.Transaction) {
/*
UTXO map structure:
address - [
txId1 - [
outputIndex1 - value1
outputIndex2 - value2
]
txId2 - [
outputIndex1 - value1
outputIndex2 - value2
]
]
*/
var txs []*blockchain.Transaction
var crossTxs []*blockchain.Transaction
txsCount := 0
utxoPoolMutex.Lock()
UTXOLOOP:
// Loop over all addresses
for address, txMap := range dataNodes[shardId].UtxoPool.UtxoMap {
// Loop over all txIds for the address
for txIdStr, utxoMap := range txMap {
// Parse TxId
id, err := hex.DecodeString(txIdStr)
if err != nil {
continue
}
txId := [32]byte{}
copy(txId[:], id[:])
// Loop over all utxos for the txId
for index, value := range utxoMap {
if txsCount >= maxNumTxs {
break UTXOLOOP
}
randNum := rand.Intn(100)
// 30% sample rate to select UTXO to use for new transactions
if randNum < 30 {
if crossShard && randNum < 10 { // 30% cross shard transactions: add another txinput from another shard
// shard with neighboring Id
crossShardId := (int(dataNodes[shardId].Consensus.ShardID) + 1) % len(dataNodes)
crossShardNode := dataNodes[crossShardId]
crossShardUtxosMap := crossShardNode.UtxoPool.UtxoMap[address]
// Get the cross shard utxo from another shard
var crossTxin *blockchain.TXInput
crossUtxoValue := 0
// Loop over utxos for the same address from the other shard and use the first utxo as the second cross tx input
for crossTxIdStr, crossShardUtxos := range crossShardUtxosMap {
// Parse TxId
id, err := hex.DecodeString(crossTxIdStr)
if err != nil {
continue
}
crossTxId := [32]byte{}
copy(crossTxId[:], id[:])
for crossShardIndex, crossShardValue := range crossShardUtxos {
crossUtxoValue = crossShardValue
crossTxin = &blockchain.TXInput{crossTxId, crossShardIndex, address, uint32(crossShardId)}
break
}
if crossTxin != nil {
break
}
}
// Add the utxo from current shard
txin := blockchain.TXInput{txId, index, address, dataNodes[shardId].Consensus.ShardID}
txInputs := []blockchain.TXInput{txin}
// Add the utxo from the other shard, if any
if crossTxin != nil {
txInputs = append(txInputs, *crossTxin)
}
// Spend the utxo from the current shard to a random address in [0 - N)
txout := blockchain.TXOutput{value, strconv.Itoa(rand.Intn(10000)), dataNodes[shardId].Consensus.ShardID}
txOutputs := []blockchain.TXOutput{txout}
// Spend the utxo from the other shard, if any, to a random address in [0 - N)
if crossTxin != nil {
crossTxout := blockchain.TXOutput{crossUtxoValue, strconv.Itoa(rand.Intn(10000)), uint32(crossShardId)}
txOutputs = append(txOutputs, crossTxout)
}
// Construct the new transaction
tx := blockchain.Transaction{[32]byte{}, txInputs, txOutputs, nil}
tx.SetID()
crossTxs = append(crossTxs, &tx)
txsCount++
} else {
// Add the utxo as new tx input
txin := blockchain.TXInput{txId, index, address, dataNodes[shardId].Consensus.ShardID}
// Spend the utxo to a random address in [0 - N)
txout := blockchain.TXOutput{value, strconv.Itoa(rand.Intn(10000)), dataNodes[shardId].Consensus.ShardID}
tx := blockchain.Transaction{[32]byte{}, []blockchain.TXInput{txin}, []blockchain.TXOutput{txout}, nil}
tx.SetID()
txs = append(txs, &tx)
txsCount++
}
}
}
}
}
utxoPoolMutex.Unlock()
return txs, crossTxs
}
// Gets all the validator peers
func getValidators(config string) []p2p.Peer {
file, _ := os.Open(config)
fscanner := bufio.NewScanner(file)
var peerList []p2p.Peer
for fscanner.Scan() {
p := strings.Split(fscanner.Text(), " ")
ip, port, status := p[0], p[1], p[2]
if status == "leader" || status == "client" {
continue
}
peer := p2p.Peer{Port: port, Ip: ip}
peerList = append(peerList, peer)
}
return peerList
}
// Gets all the leader peers and corresponding shard Ids
func getLeadersAndShardIds(config *[][]string) ([]p2p.Peer, []uint32) {
var peerList []p2p.Peer
var shardIds []uint32
for _, node := range *config {
ip, port, status, shardId := node[0], node[1], node[2], node[3]
if status == "leader" {
peerList = append(peerList, p2p.Peer{Ip: ip, Port: port})
val, err := strconv.Atoi(shardId)
if err == nil {
shardIds = append(shardIds, uint32(val))
} else {
log.Error("[Generator] Error parsing the shard Id ", shardId)
}
}
}
return peerList, shardIds
}
// Parse the config file and return a 2d array containing the file data
func readConfigFile(configFile string) [][]string {
file, _ := os.Open(configFile)
fscanner := bufio.NewScanner(file)
result := [][]string{}
for fscanner.Scan() {
p := strings.Split(fscanner.Text(), " ")
result = append(result, p)
}
return result
}
// Gets the port of the client node in the config
func getClientPort(config *[][]string) string {
for _, node := range *config {
_, port, status, _ := node[0], node[1], node[2], node[3]
if status == "client" {
return port
}
}
return ""
}
// A utility func that counts the total number of utxos in a pool.
func countNumOfUtxos(utxoPool *blockchain.UTXOPool) int {
countAll := 0
for _, utxoMap := range utxoPool.UtxoMap {
for txIdStr, val := range utxoMap {
_ = val
id, err := hex.DecodeString(txIdStr)
if err != nil {
continue
}
txId := [32]byte{}
copy(txId[:], id[:])
for _, utxo := range val {
_ = utxo
countAll++
}
}
}
return countAll
}
func main() {
configFile := flag.String("config_file", "local_config.txt", "file containing all ip addresses and config")
maxNumTxsPerBatch := flag.Int("max_num_txs_per_batch", 10000, "number of transactions to send per message")
logFolder := flag.String("log_folder", "latest", "the folder collecting the logs of this execution")
flag.Parse()
// Read the configs
config := readConfigFile(*configFile)
leaders, shardIds := getLeadersAndShardIds(&config)
// Do cross shard tx if there are more than one shard
crossShard := len(shardIds) > 1
// TODO(Richard): refactor this chuck to a single method
// Setup a logger to stdout and log file.
logFileName := fmt.Sprintf("./%v/tx-generator.log", *logFolder)
h := log.MultiHandler(
log.Must.FileHandler(logFileName, log.LogfmtFormat()),
log.StdoutHandler)
// In cases where you just want a stdout logger, use the following one instead.
// h := log.CallerFileHandler(log.StdoutHandler)
log.Root().SetHandler(h)
// Nodes containing utxopools to mirror the shards' data in the network
nodes := []*node.Node{}
for _, shardId := range shardIds {
node := node.NewNode(&consensus.Consensus{ShardID: shardId})
// Assign many fake addresses so we have enough address to place with at first
node.AddTestingAddresses(10000)
nodes = append(nodes, &node)
}
// Client/txgenerator server node setup
clientPort := getClientPort(&config)
consensusObj := consensus.NewConsensus("0", clientPort, "0", nil, p2p.Peer{})
clientNode := node.NewNode(&consensusObj)
if clientPort != "" {
clientNode.Client = client.NewClient(&leaders)
// This func is used to update the client's utxopool when new blocks are received from the leaders
updateBlocksFunc := func(blocks []*blockchain.Block) {
log.Debug("Received new block from leader", "len", len(blocks))
for _, block := range blocks {
for _, node := range nodes {
if node.Consensus.ShardID == block.ShardId {
log.Debug("Adding block from leader", "shardId", block.ShardId)
// Add it to blockchain
utxoPoolMutex.Lock()
node.AddNewBlock(block)
utxoPoolMutex.Unlock()
} else {
continue
}
}
}
}
clientNode.Client.UpdateBlocks = updateBlocksFunc
// Start the client server to listen to leader's message
go func() {
clientNode.StartServer(clientPort)
}()
}
// Transaction generation process
time.Sleep(10 * time.Second) // wait for nodes to be ready
start := time.Now()
totalTime := 60.0
for true {
t := time.Now()
if t.Sub(start).Seconds() >= totalTime {
log.Debug("Generator timer ended.", "duration", (int(t.Sub(start))), "startTime", start, "totalTime", totalTime)
break
}
allCrossTxs := []*blockchain.Transaction{}
// Generate simulated transactions
for i, leader := range leaders {
txs, crossTxs := generateSimulatedTransactions(i, nodes, *maxNumTxsPerBatch, crossShard)
allCrossTxs = append(allCrossTxs, crossTxs...)
log.Debug("[Generator] Sending single-shard txs ...", "leader", leader, "numTxs", len(txs), "numCrossTxs", len(crossTxs))
msg := node.ConstructTransactionListMessage(txs)
p2p.SendMessage(leader, msg)
// Note cross shard txs are later sent in batch
}
if len(allCrossTxs) > 0 {
log.Debug("[Generator] Broadcasting cross-shard txs ...", "allCrossTxs", len(allCrossTxs))
msg := node.ConstructTransactionListMessage(allCrossTxs)
p2p.BroadcastMessage(leaders, msg)
// Put cross shard tx into a pending list waiting for proofs from leaders
if clientPort != "" {
clientNode.Client.PendingCrossTxsMutex.Lock()
for _, tx := range allCrossTxs {
clientNode.Client.PendingCrossTxs[tx.ID] = tx
}
clientNode.Client.PendingCrossTxsMutex.Unlock()
}
}
time.Sleep(500 * time.Millisecond) // Send a batch of transactions periodically
}
// Send a stop message to stop the nodes at the end
msg := node.ConstructStopMessage()
peers := append(getValidators(*configFile), leaders...)
p2p.BroadcastMessage(peers, msg)
}

@ -7,7 +7,7 @@
# exe, the dialog will only pop up once at the very first time.
# Also it's recommended to use `go build` for testing the whole exe.
go build -o benchmark # Build the harmony-benchmark.exe
go build -o txgen client/txgen/main.go
go build -o txgen client/txgenerator/main.go
# Create a tmp folder for logs
t=`date +"%Y%m%d-%H%M%S"`

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