You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
349 lines
10 KiB
349 lines
10 KiB
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"math/rand"
|
|
"sort"
|
|
"strings"
|
|
|
|
e2e "github.com/tendermint/tendermint/test/e2e/pkg"
|
|
"github.com/tendermint/tendermint/types"
|
|
)
|
|
|
|
var (
|
|
// testnetCombinations defines global testnet options, where we generate a
|
|
// separate testnet for each combination (Cartesian product) of options.
|
|
testnetCombinations = map[string][]interface{}{
|
|
"topology": {"single", "quad", "large"},
|
|
"queueType": {"priority"}, // "fifo", "wdrr"
|
|
"initialHeight": {0, 1000},
|
|
"initialState": {
|
|
map[string]string{},
|
|
map[string]string{"initial01": "a", "initial02": "b", "initial03": "c"},
|
|
},
|
|
"validators": {"genesis", "initchain"},
|
|
}
|
|
|
|
// The following specify randomly chosen values for testnet nodes.
|
|
nodeDatabases = weightedChoice{
|
|
"goleveldb": 35,
|
|
"badgerdb": 35,
|
|
"boltdb": 15,
|
|
"rocksdb": 10,
|
|
"cleveldb": 5,
|
|
}
|
|
nodeABCIProtocols = weightedChoice{
|
|
"builtin": 50,
|
|
"tcp": 20,
|
|
"grpc": 20,
|
|
"unix": 10,
|
|
}
|
|
nodePrivvalProtocols = weightedChoice{
|
|
"file": 50,
|
|
"grpc": 20,
|
|
"tcp": 20,
|
|
"unix": 10,
|
|
}
|
|
// FIXME: v2 disabled due to flake
|
|
nodeBlockSyncs = uniformChoice{"v0"} // "v2"
|
|
nodeMempools = uniformChoice{"v0", "v1"}
|
|
nodeStateSyncs = weightedChoice{
|
|
e2e.StateSyncDisabled: 10,
|
|
e2e.StateSyncP2P: 45,
|
|
e2e.StateSyncRPC: 45,
|
|
}
|
|
nodePersistIntervals = uniformChoice{0, 1, 5}
|
|
nodeSnapshotIntervals = uniformChoice{0, 3}
|
|
nodeRetainBlocks = uniformChoice{0, 2 * int(e2e.EvidenceAgeHeight), 4 * int(e2e.EvidenceAgeHeight)}
|
|
nodePerturbations = probSetChoice{
|
|
"disconnect": 0.1,
|
|
"pause": 0.1,
|
|
"kill": 0.1,
|
|
"restart": 0.1,
|
|
}
|
|
evidence = uniformChoice{0, 1, 10}
|
|
txSize = uniformChoice{1024, 4096} // either 1kb or 4kb
|
|
ipv6 = uniformChoice{false, true}
|
|
keyType = uniformChoice{types.ABCIPubKeyTypeEd25519, types.ABCIPubKeyTypeSecp256k1}
|
|
)
|
|
|
|
// Generate generates random testnets using the given RNG.
|
|
func Generate(r *rand.Rand, opts Options) ([]e2e.Manifest, error) {
|
|
manifests := []e2e.Manifest{}
|
|
|
|
for _, opt := range combinations(testnetCombinations) {
|
|
manifest, err := generateTestnet(r, opt)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(manifest.Nodes) < opts.MinNetworkSize {
|
|
continue
|
|
}
|
|
|
|
if opts.MaxNetworkSize > 0 && len(manifest.Nodes) >= opts.MaxNetworkSize {
|
|
continue
|
|
}
|
|
|
|
manifests = append(manifests, manifest)
|
|
}
|
|
|
|
return manifests, nil
|
|
}
|
|
|
|
type Options struct {
|
|
MinNetworkSize int
|
|
MaxNetworkSize int
|
|
NumGroups int
|
|
Directory string
|
|
Reverse bool
|
|
}
|
|
|
|
// generateTestnet generates a single testnet with the given options.
|
|
func generateTestnet(r *rand.Rand, opt map[string]interface{}) (e2e.Manifest, error) {
|
|
manifest := e2e.Manifest{
|
|
IPv6: ipv6.Choose(r).(bool),
|
|
InitialHeight: int64(opt["initialHeight"].(int)),
|
|
InitialState: opt["initialState"].(map[string]string),
|
|
Validators: &map[string]int64{},
|
|
ValidatorUpdates: map[string]map[string]int64{},
|
|
Nodes: map[string]*e2e.ManifestNode{},
|
|
KeyType: keyType.Choose(r).(string),
|
|
Evidence: evidence.Choose(r).(int),
|
|
QueueType: opt["queueType"].(string),
|
|
TxSize: int64(txSize.Choose(r).(int)),
|
|
}
|
|
|
|
var numSeeds, numValidators, numFulls, numLightClients int
|
|
switch opt["topology"].(string) {
|
|
case "single":
|
|
numValidators = 1
|
|
case "quad":
|
|
numValidators = 4
|
|
case "large":
|
|
// FIXME Networks are kept small since large ones use too much CPU.
|
|
numSeeds = r.Intn(1)
|
|
numLightClients = r.Intn(2)
|
|
numValidators = 4 + r.Intn(4)
|
|
numFulls = r.Intn(4)
|
|
default:
|
|
return manifest, fmt.Errorf("unknown topology %q", opt["topology"])
|
|
}
|
|
|
|
// First we generate seed nodes, starting at the initial height.
|
|
for i := 1; i <= numSeeds; i++ {
|
|
node := generateNode(r, manifest, e2e.ModeSeed, 0, false)
|
|
manifest.Nodes[fmt.Sprintf("seed%02d", i)] = node
|
|
}
|
|
|
|
var numSyncingNodes = 0
|
|
|
|
// Next, we generate validators. We make sure a BFT quorum of validators start
|
|
// at the initial height, and that we have two archive nodes. We also set up
|
|
// the initial validator set, and validator set updates for delayed nodes.
|
|
nextStartAt := manifest.InitialHeight + 5
|
|
quorum := numValidators*2/3 + 1
|
|
for i := 1; i <= numValidators; i++ {
|
|
startAt := int64(0)
|
|
if i > quorum && numSyncingNodes < 2 && r.Float64() >= 0.25 {
|
|
numSyncingNodes++
|
|
startAt = nextStartAt
|
|
nextStartAt += 5
|
|
}
|
|
name := fmt.Sprintf("validator%02d", i)
|
|
node := generateNode(r, manifest, e2e.ModeValidator, startAt, i <= 2)
|
|
|
|
manifest.Nodes[name] = node
|
|
|
|
if startAt == 0 {
|
|
(*manifest.Validators)[name] = int64(30 + r.Intn(71))
|
|
} else {
|
|
manifest.ValidatorUpdates[fmt.Sprint(startAt+5)] = map[string]int64{
|
|
name: int64(30 + r.Intn(71)),
|
|
}
|
|
}
|
|
}
|
|
|
|
// Move validators to InitChain if specified.
|
|
switch opt["validators"].(string) {
|
|
case "genesis":
|
|
case "initchain":
|
|
manifest.ValidatorUpdates["0"] = *manifest.Validators
|
|
manifest.Validators = &map[string]int64{}
|
|
default:
|
|
return manifest, fmt.Errorf("invalid validators option %q", opt["validators"])
|
|
}
|
|
|
|
// Finally, we generate random full nodes.
|
|
for i := 1; i <= numFulls; i++ {
|
|
startAt := int64(0)
|
|
if numSyncingNodes < 2 && r.Float64() >= 0.5 {
|
|
numSyncingNodes++
|
|
startAt = nextStartAt
|
|
nextStartAt += 5
|
|
}
|
|
node := generateNode(r, manifest, e2e.ModeFull, startAt, false)
|
|
|
|
manifest.Nodes[fmt.Sprintf("full%02d", i)] = node
|
|
}
|
|
|
|
// We now set up peer discovery for nodes. Seed nodes are fully meshed with
|
|
// each other, while non-seed nodes either use a set of random seeds or a
|
|
// set of random peers that start before themselves.
|
|
var seedNames, peerNames, lightProviders []string
|
|
for name, node := range manifest.Nodes {
|
|
if node.Mode == string(e2e.ModeSeed) {
|
|
seedNames = append(seedNames, name)
|
|
} else {
|
|
// if the full node or validator is an ideal candidate, it is added as a light provider.
|
|
// There are at least two archive nodes so there should be at least two ideal candidates
|
|
if (node.StartAt == 0 || node.StartAt == manifest.InitialHeight) && node.RetainBlocks == 0 {
|
|
lightProviders = append(lightProviders, name)
|
|
}
|
|
peerNames = append(peerNames, name)
|
|
}
|
|
}
|
|
|
|
for _, name := range seedNames {
|
|
for _, otherName := range seedNames {
|
|
if name != otherName {
|
|
manifest.Nodes[name].Seeds = append(manifest.Nodes[name].Seeds, otherName)
|
|
}
|
|
}
|
|
}
|
|
|
|
sort.Slice(peerNames, func(i, j int) bool {
|
|
iName, jName := peerNames[i], peerNames[j]
|
|
switch {
|
|
case manifest.Nodes[iName].StartAt < manifest.Nodes[jName].StartAt:
|
|
return true
|
|
case manifest.Nodes[iName].StartAt > manifest.Nodes[jName].StartAt:
|
|
return false
|
|
default:
|
|
return strings.Compare(iName, jName) == -1
|
|
}
|
|
})
|
|
for i, name := range peerNames {
|
|
// there are seeds, statesync is disabled, and it's
|
|
// either the first peer by the sort order, and
|
|
// (randomly half of the remaining peers use a seed
|
|
// node; otherwise, choose some remaining set of the
|
|
// peers.
|
|
|
|
if len(seedNames) > 0 &&
|
|
manifest.Nodes[name].StateSync == e2e.StateSyncDisabled &&
|
|
(i == 0 || r.Float64() >= 0.5) {
|
|
|
|
// choose one of the seeds
|
|
manifest.Nodes[name].Seeds = uniformSetChoice(seedNames).Choose(r)
|
|
} else if i > 0 {
|
|
peers := uniformSetChoice(peerNames[:i])
|
|
if manifest.Nodes[name].StateSync == e2e.StateSyncP2P {
|
|
manifest.Nodes[name].PersistentPeers = peers.ChooseAtLeast(r, 2)
|
|
} else {
|
|
manifest.Nodes[name].PersistentPeers = peers.Choose(r)
|
|
}
|
|
}
|
|
}
|
|
|
|
// lastly, set up the light clients
|
|
for i := 1; i <= numLightClients; i++ {
|
|
startAt := manifest.InitialHeight + 5
|
|
|
|
node := generateLightNode(
|
|
r, startAt+(5*int64(i)), lightProviders,
|
|
)
|
|
|
|
manifest.Nodes[fmt.Sprintf("light%02d", i)] = node
|
|
|
|
}
|
|
|
|
return manifest, nil
|
|
}
|
|
|
|
// generateNode randomly generates a node, with some constraints to avoid
|
|
// generating invalid configurations. We do not set Seeds or PersistentPeers
|
|
// here, since we need to know the overall network topology and startup
|
|
// sequencing.
|
|
func generateNode(
|
|
r *rand.Rand,
|
|
manifest e2e.Manifest,
|
|
mode e2e.Mode,
|
|
startAt int64,
|
|
forceArchive bool,
|
|
) *e2e.ManifestNode {
|
|
node := e2e.ManifestNode{
|
|
Mode: string(mode),
|
|
StartAt: startAt,
|
|
Database: nodeDatabases.Choose(r),
|
|
ABCIProtocol: nodeABCIProtocols.Choose(r),
|
|
PrivvalProtocol: nodePrivvalProtocols.Choose(r),
|
|
BlockSync: nodeBlockSyncs.Choose(r).(string),
|
|
Mempool: nodeMempools.Choose(r).(string),
|
|
StateSync: e2e.StateSyncDisabled,
|
|
PersistInterval: ptrUint64(uint64(nodePersistIntervals.Choose(r).(int))),
|
|
SnapshotInterval: uint64(nodeSnapshotIntervals.Choose(r).(int)),
|
|
RetainBlocks: uint64(nodeRetainBlocks.Choose(r).(int)),
|
|
Perturb: nodePerturbations.Choose(r),
|
|
}
|
|
|
|
if startAt > 0 {
|
|
node.StateSync = nodeStateSyncs.Choose(r)
|
|
if manifest.InitialHeight-startAt <= 5 && node.StateSync == e2e.StateSyncDisabled {
|
|
// avoid needing to blocsync more than five total blocks.
|
|
node.StateSync = uniformSetChoice([]string{
|
|
e2e.StateSyncP2P,
|
|
e2e.StateSyncRPC,
|
|
}).Choose(r)[0]
|
|
}
|
|
}
|
|
|
|
// If this node is forced to be an archive node, retain all blocks and
|
|
// enable state sync snapshotting.
|
|
if forceArchive {
|
|
node.RetainBlocks = 0
|
|
node.SnapshotInterval = 3
|
|
}
|
|
|
|
// If a node which does not persist state also does not retain blocks, randomly
|
|
// choose to either persist state or retain all blocks.
|
|
if node.PersistInterval != nil && *node.PersistInterval == 0 && node.RetainBlocks > 0 {
|
|
if r.Float64() > 0.5 {
|
|
node.RetainBlocks = 0
|
|
} else {
|
|
node.PersistInterval = ptrUint64(node.RetainBlocks)
|
|
}
|
|
}
|
|
|
|
// If either PersistInterval or SnapshotInterval are greater than RetainBlocks,
|
|
// expand the block retention time.
|
|
if node.RetainBlocks > 0 {
|
|
if node.PersistInterval != nil && node.RetainBlocks < *node.PersistInterval {
|
|
node.RetainBlocks = *node.PersistInterval
|
|
}
|
|
if node.RetainBlocks < node.SnapshotInterval {
|
|
node.RetainBlocks = node.SnapshotInterval
|
|
}
|
|
}
|
|
|
|
if node.StateSync != e2e.StateSyncDisabled {
|
|
node.BlockSync = "v0"
|
|
}
|
|
|
|
return &node
|
|
}
|
|
|
|
func generateLightNode(r *rand.Rand, startAt int64, providers []string) *e2e.ManifestNode {
|
|
return &e2e.ManifestNode{
|
|
Mode: string(e2e.ModeLight),
|
|
StartAt: startAt,
|
|
Database: nodeDatabases.Choose(r),
|
|
ABCIProtocol: "builtin",
|
|
PersistInterval: ptrUint64(0),
|
|
PersistentPeers: providers,
|
|
}
|
|
}
|
|
|
|
func ptrUint64(i uint64) *uint64 {
|
|
return &i
|
|
}
|