645 lines
16 KiB
Go
645 lines
16 KiB
Go
// Copyright 2018 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 stream
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
crand "crypto/rand"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/node"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
|
|
p2ptest "github.com/ethereum/go-ethereum/p2p/testing"
|
|
"github.com/ethereum/go-ethereum/swarm/log"
|
|
"github.com/ethereum/go-ethereum/swarm/network"
|
|
"github.com/ethereum/go-ethereum/swarm/network/simulation"
|
|
"github.com/ethereum/go-ethereum/swarm/state"
|
|
"github.com/ethereum/go-ethereum/swarm/storage"
|
|
)
|
|
|
|
func TestStreamerRetrieveRequest(t *testing.T) {
|
|
tester, streamer, _, teardown, err := newStreamerTester(t)
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
peerID := tester.IDs[0]
|
|
|
|
ctx := context.Background()
|
|
req := network.NewRequest(
|
|
storage.Address(hash0[:]),
|
|
true,
|
|
&sync.Map{},
|
|
)
|
|
streamer.delivery.RequestFromPeers(ctx, req)
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "RetrieveRequestMsg",
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 5,
|
|
Msg: &RetrieveRequestMsg{
|
|
Addr: hash0[:],
|
|
SkipCheck: true,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
}
|
|
|
|
func TestStreamerUpstreamRetrieveRequestMsgExchangeWithoutStore(t *testing.T) {
|
|
tester, streamer, _, teardown, err := newStreamerTester(t)
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
peerID := tester.IDs[0]
|
|
|
|
chunk := storage.NewChunk(storage.Address(hash0[:]), nil)
|
|
|
|
peer := streamer.getPeer(peerID)
|
|
|
|
peer.handleSubscribeMsg(context.TODO(), &SubscribeMsg{
|
|
Stream: NewStream(swarmChunkServerStreamName, "", false),
|
|
History: nil,
|
|
Priority: Top,
|
|
})
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "RetrieveRequestMsg",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 5,
|
|
Msg: &RetrieveRequestMsg{
|
|
Addr: chunk.Address()[:],
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
HandoverProof: nil,
|
|
Hashes: nil,
|
|
From: 0,
|
|
To: 0,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
})
|
|
|
|
expectedError := `exchange #0 "RetrieveRequestMsg": timed out`
|
|
if err == nil || err.Error() != expectedError {
|
|
t.Fatalf("Expected error %v, got %v", expectedError, err)
|
|
}
|
|
}
|
|
|
|
// upstream request server receives a retrieve Request and responds with
|
|
// offered hashes or delivery if skipHash is set to true
|
|
func TestStreamerUpstreamRetrieveRequestMsgExchange(t *testing.T) {
|
|
tester, streamer, localStore, teardown, err := newStreamerTester(t)
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
peerID := tester.IDs[0]
|
|
peer := streamer.getPeer(peerID)
|
|
|
|
stream := NewStream(swarmChunkServerStreamName, "", false)
|
|
|
|
peer.handleSubscribeMsg(context.TODO(), &SubscribeMsg{
|
|
Stream: stream,
|
|
History: nil,
|
|
Priority: Top,
|
|
})
|
|
|
|
hash := storage.Address(hash0[:])
|
|
chunk := storage.NewChunk(hash, hash)
|
|
err = localStore.Put(context.TODO(), chunk)
|
|
if err != nil {
|
|
t.Fatalf("Expected no err got %v", err)
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "RetrieveRequestMsg",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 5,
|
|
Msg: &RetrieveRequestMsg{
|
|
Addr: hash,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
HandoverProof: &HandoverProof{
|
|
Handover: &Handover{},
|
|
},
|
|
Hashes: hash,
|
|
From: 0,
|
|
// TODO: why is this 32???
|
|
To: 32,
|
|
Stream: stream,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
hash = storage.Address(hash1[:])
|
|
chunk = storage.NewChunk(hash, hash1[:])
|
|
err = localStore.Put(context.TODO(), chunk)
|
|
if err != nil {
|
|
t.Fatalf("Expected no err got %v", err)
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "RetrieveRequestMsg",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 5,
|
|
Msg: &RetrieveRequestMsg{
|
|
Addr: hash,
|
|
SkipCheck: true,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 6,
|
|
Msg: &ChunkDeliveryMsg{
|
|
Addr: hash,
|
|
SData: hash,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func TestStreamerDownstreamChunkDeliveryMsgExchange(t *testing.T) {
|
|
tester, streamer, localStore, teardown, err := newStreamerTester(t)
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
streamer.RegisterClientFunc("foo", func(p *Peer, t string, live bool) (Client, error) {
|
|
return &testClient{
|
|
t: t,
|
|
}, nil
|
|
})
|
|
|
|
peerID := tester.IDs[0]
|
|
|
|
stream := NewStream("foo", "", true)
|
|
err = streamer.Subscribe(peerID, stream, NewRange(5, 8), Top)
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
|
|
chunkKey := hash0[:]
|
|
chunkData := hash1[:]
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Subscribe message",
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 4,
|
|
Msg: &SubscribeMsg{
|
|
Stream: stream,
|
|
History: NewRange(5, 8),
|
|
Priority: Top,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
},
|
|
p2ptest.Exchange{
|
|
Label: "ChunkDelivery message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 6,
|
|
Msg: &ChunkDeliveryMsg{
|
|
Addr: chunkKey,
|
|
SData: chunkData,
|
|
},
|
|
Peer: peerID,
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
|
|
defer cancel()
|
|
|
|
// wait for the chunk to get stored
|
|
storedChunk, err := localStore.Get(ctx, chunkKey)
|
|
for err != nil {
|
|
select {
|
|
case <-ctx.Done():
|
|
t.Fatalf("Chunk is not in localstore after timeout, err: %v", err)
|
|
default:
|
|
}
|
|
storedChunk, err = localStore.Get(ctx, chunkKey)
|
|
time.Sleep(50 * time.Millisecond)
|
|
}
|
|
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
|
|
if !bytes.Equal(storedChunk.Data(), chunkData) {
|
|
t.Fatal("Retrieved chunk has different data than original")
|
|
}
|
|
|
|
}
|
|
|
|
func TestDeliveryFromNodes(t *testing.T) {
|
|
testDeliveryFromNodes(t, 2, 1, dataChunkCount, true)
|
|
testDeliveryFromNodes(t, 2, 1, dataChunkCount, false)
|
|
testDeliveryFromNodes(t, 4, 1, dataChunkCount, true)
|
|
testDeliveryFromNodes(t, 4, 1, dataChunkCount, false)
|
|
testDeliveryFromNodes(t, 8, 1, dataChunkCount, true)
|
|
testDeliveryFromNodes(t, 8, 1, dataChunkCount, false)
|
|
testDeliveryFromNodes(t, 16, 1, dataChunkCount, true)
|
|
testDeliveryFromNodes(t, 16, 1, dataChunkCount, false)
|
|
}
|
|
|
|
func testDeliveryFromNodes(t *testing.T, nodes, conns, chunkCount int, skipCheck bool) {
|
|
sim := simulation.New(map[string]simulation.ServiceFunc{
|
|
"streamer": func(ctx *adapters.ServiceContext, bucket *sync.Map) (s node.Service, cleanup func(), err error) {
|
|
|
|
id := ctx.Config.ID
|
|
addr := network.NewAddrFromNodeID(id)
|
|
store, datadir, err := createTestLocalStorageForID(id, addr)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
bucket.Store(bucketKeyStore, store)
|
|
cleanup = func() {
|
|
os.RemoveAll(datadir)
|
|
store.Close()
|
|
}
|
|
localStore := store.(*storage.LocalStore)
|
|
netStore, err := storage.NewNetStore(localStore, nil)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
kad := network.NewKademlia(addr.Over(), network.NewKadParams())
|
|
delivery := NewDelivery(kad, netStore)
|
|
netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, true).New
|
|
|
|
r := NewRegistry(addr, delivery, netStore, state.NewInmemoryStore(), &RegistryOptions{
|
|
SkipCheck: skipCheck,
|
|
})
|
|
bucket.Store(bucketKeyRegistry, r)
|
|
|
|
fileStore := storage.NewFileStore(netStore, storage.NewFileStoreParams())
|
|
bucket.Store(bucketKeyFileStore, fileStore)
|
|
|
|
return r, cleanup, nil
|
|
|
|
},
|
|
})
|
|
defer sim.Close()
|
|
|
|
log.Info("Adding nodes to simulation")
|
|
_, err := sim.AddNodesAndConnectChain(nodes)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
log.Info("Starting simulation")
|
|
ctx := context.Background()
|
|
result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
|
|
nodeIDs := sim.UpNodeIDs()
|
|
//determine the pivot node to be the first node of the simulation
|
|
sim.SetPivotNode(nodeIDs[0])
|
|
//distribute chunks of a random file into Stores of nodes 1 to nodes
|
|
//we will do this by creating a file store with an underlying round-robin store:
|
|
//the file store will create a hash for the uploaded file, but every chunk will be
|
|
//distributed to different nodes via round-robin scheduling
|
|
log.Debug("Writing file to round-robin file store")
|
|
//to do this, we create an array for chunkstores (length minus one, the pivot node)
|
|
stores := make([]storage.ChunkStore, len(nodeIDs)-1)
|
|
//we then need to get all stores from the sim....
|
|
lStores := sim.NodesItems(bucketKeyStore)
|
|
i := 0
|
|
//...iterate the buckets...
|
|
for id, bucketVal := range lStores {
|
|
//...and remove the one which is the pivot node
|
|
if id == *sim.PivotNodeID() {
|
|
continue
|
|
}
|
|
//the other ones are added to the array...
|
|
stores[i] = bucketVal.(storage.ChunkStore)
|
|
i++
|
|
}
|
|
//...which then gets passed to the round-robin file store
|
|
roundRobinFileStore := storage.NewFileStore(newRoundRobinStore(stores...), storage.NewFileStoreParams())
|
|
//now we can actually upload a (random) file to the round-robin store
|
|
size := chunkCount * chunkSize
|
|
log.Debug("Storing data to file store")
|
|
fileHash, wait, err := roundRobinFileStore.Store(ctx, io.LimitReader(crand.Reader, int64(size)), int64(size), false)
|
|
// wait until all chunks stored
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = wait(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Debug("Waiting for kademlia")
|
|
if _, err := sim.WaitTillHealthy(ctx, 2); err != nil {
|
|
return err
|
|
}
|
|
|
|
//each of the nodes (except pivot node) subscribes to the stream of the next node
|
|
for j, node := range nodeIDs[0 : nodes-1] {
|
|
sid := nodeIDs[j+1]
|
|
item, ok := sim.NodeItem(node, bucketKeyRegistry)
|
|
if !ok {
|
|
return fmt.Errorf("No registry")
|
|
}
|
|
registry := item.(*Registry)
|
|
err = registry.Subscribe(sid, NewStream(swarmChunkServerStreamName, "", false), NewRange(0, 0), Top)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
//get the pivot node's filestore
|
|
item, ok := sim.NodeItem(*sim.PivotNodeID(), bucketKeyFileStore)
|
|
if !ok {
|
|
return fmt.Errorf("No filestore")
|
|
}
|
|
pivotFileStore := item.(*storage.FileStore)
|
|
log.Debug("Starting retrieval routine")
|
|
go func() {
|
|
// start the retrieval on the pivot node - this will spawn retrieve requests for missing chunks
|
|
// we must wait for the peer connections to have started before requesting
|
|
n, err := readAll(pivotFileStore, fileHash)
|
|
log.Info(fmt.Sprintf("retrieved %v", fileHash), "read", n, "err", err)
|
|
if err != nil {
|
|
t.Fatalf("requesting chunks action error: %v", err)
|
|
}
|
|
}()
|
|
|
|
log.Debug("Watching for disconnections")
|
|
disconnections := sim.PeerEvents(
|
|
context.Background(),
|
|
sim.NodeIDs(),
|
|
simulation.NewPeerEventsFilter().Type(p2p.PeerEventTypeDrop),
|
|
)
|
|
|
|
go func() {
|
|
for d := range disconnections {
|
|
if d.Error != nil {
|
|
log.Error("peer drop", "node", d.NodeID, "peer", d.Event.Peer)
|
|
t.Fatal(d.Error)
|
|
}
|
|
}
|
|
}()
|
|
|
|
//finally check that the pivot node gets all chunks via the root hash
|
|
log.Debug("Check retrieval")
|
|
success := true
|
|
var total int64
|
|
total, err = readAll(pivotFileStore, fileHash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Info(fmt.Sprintf("check if %08x is available locally: number of bytes read %v/%v (error: %v)", fileHash, total, size, err))
|
|
if err != nil || total != int64(size) {
|
|
success = false
|
|
}
|
|
|
|
if !success {
|
|
return fmt.Errorf("Test failed, chunks not available on all nodes")
|
|
}
|
|
log.Debug("Test terminated successfully")
|
|
return nil
|
|
})
|
|
if result.Error != nil {
|
|
t.Fatal(result.Error)
|
|
}
|
|
}
|
|
|
|
func BenchmarkDeliveryFromNodesWithoutCheck(b *testing.B) {
|
|
for chunks := 32; chunks <= 128; chunks *= 2 {
|
|
for i := 2; i < 32; i *= 2 {
|
|
b.Run(
|
|
fmt.Sprintf("nodes=%v,chunks=%v", i, chunks),
|
|
func(b *testing.B) {
|
|
benchmarkDeliveryFromNodes(b, i, 1, chunks, true)
|
|
},
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkDeliveryFromNodesWithCheck(b *testing.B) {
|
|
for chunks := 32; chunks <= 128; chunks *= 2 {
|
|
for i := 2; i < 32; i *= 2 {
|
|
b.Run(
|
|
fmt.Sprintf("nodes=%v,chunks=%v", i, chunks),
|
|
func(b *testing.B) {
|
|
benchmarkDeliveryFromNodes(b, i, 1, chunks, false)
|
|
},
|
|
)
|
|
}
|
|
}
|
|
}
|
|
|
|
func benchmarkDeliveryFromNodes(b *testing.B, nodes, conns, chunkCount int, skipCheck bool) {
|
|
sim := simulation.New(map[string]simulation.ServiceFunc{
|
|
"streamer": func(ctx *adapters.ServiceContext, bucket *sync.Map) (s node.Service, cleanup func(), err error) {
|
|
id := ctx.Config.ID
|
|
addr := network.NewAddrFromNodeID(id)
|
|
store, datadir, err := createTestLocalStorageForID(id, addr)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
bucket.Store(bucketKeyStore, store)
|
|
cleanup = func() {
|
|
os.RemoveAll(datadir)
|
|
store.Close()
|
|
}
|
|
localStore := store.(*storage.LocalStore)
|
|
netStore, err := storage.NewNetStore(localStore, nil)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
kad := network.NewKademlia(addr.Over(), network.NewKadParams())
|
|
delivery := NewDelivery(kad, netStore)
|
|
netStore.NewNetFetcherFunc = network.NewFetcherFactory(delivery.RequestFromPeers, true).New
|
|
|
|
r := NewRegistry(addr, delivery, netStore, state.NewInmemoryStore(), &RegistryOptions{
|
|
SkipCheck: skipCheck,
|
|
DoSync: true,
|
|
SyncUpdateDelay: 0,
|
|
})
|
|
|
|
fileStore := storage.NewFileStore(netStore, storage.NewFileStoreParams())
|
|
bucket.Store(bucketKeyFileStore, fileStore)
|
|
|
|
return r, cleanup, nil
|
|
|
|
},
|
|
})
|
|
defer sim.Close()
|
|
|
|
log.Info("Initializing test config")
|
|
_, err := sim.AddNodesAndConnectChain(nodes)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
|
|
ctx := context.Background()
|
|
result := sim.Run(ctx, func(ctx context.Context, sim *simulation.Simulation) error {
|
|
nodeIDs := sim.UpNodeIDs()
|
|
node := nodeIDs[len(nodeIDs)-1]
|
|
|
|
item, ok := sim.NodeItem(node, bucketKeyFileStore)
|
|
if !ok {
|
|
b.Fatal("No filestore")
|
|
}
|
|
remoteFileStore := item.(*storage.FileStore)
|
|
|
|
pivotNode := nodeIDs[0]
|
|
item, ok = sim.NodeItem(pivotNode, bucketKeyNetStore)
|
|
if !ok {
|
|
b.Fatal("No filestore")
|
|
}
|
|
netStore := item.(*storage.NetStore)
|
|
|
|
if _, err := sim.WaitTillHealthy(ctx, 2); err != nil {
|
|
return err
|
|
}
|
|
|
|
disconnections := sim.PeerEvents(
|
|
context.Background(),
|
|
sim.NodeIDs(),
|
|
simulation.NewPeerEventsFilter().Type(p2p.PeerEventTypeDrop),
|
|
)
|
|
|
|
go func() {
|
|
for d := range disconnections {
|
|
if d.Error != nil {
|
|
log.Error("peer drop", "node", d.NodeID, "peer", d.Event.Peer)
|
|
b.Fatal(d.Error)
|
|
}
|
|
}
|
|
}()
|
|
// benchmark loop
|
|
b.ResetTimer()
|
|
b.StopTimer()
|
|
Loop:
|
|
for i := 0; i < b.N; i++ {
|
|
// uploading chunkCount random chunks to the last node
|
|
hashes := make([]storage.Address, chunkCount)
|
|
for i := 0; i < chunkCount; i++ {
|
|
// create actual size real chunks
|
|
ctx := context.TODO()
|
|
hash, wait, err := remoteFileStore.Store(ctx, io.LimitReader(crand.Reader, int64(chunkSize)), int64(chunkSize), false)
|
|
if err != nil {
|
|
b.Fatalf("expected no error. got %v", err)
|
|
}
|
|
// wait until all chunks stored
|
|
err = wait(ctx)
|
|
if err != nil {
|
|
b.Fatalf("expected no error. got %v", err)
|
|
}
|
|
// collect the hashes
|
|
hashes[i] = hash
|
|
}
|
|
// now benchmark the actual retrieval
|
|
// netstore.Get is called for each hash in a go routine and errors are collected
|
|
b.StartTimer()
|
|
errs := make(chan error)
|
|
for _, hash := range hashes {
|
|
go func(h storage.Address) {
|
|
_, err := netStore.Get(ctx, h)
|
|
log.Warn("test check netstore get", "hash", h, "err", err)
|
|
errs <- err
|
|
}(hash)
|
|
}
|
|
// count and report retrieval errors
|
|
// if there are misses then chunk timeout is too low for the distance and volume (?)
|
|
var total, misses int
|
|
for err := range errs {
|
|
if err != nil {
|
|
log.Warn(err.Error())
|
|
misses++
|
|
}
|
|
total++
|
|
if total == chunkCount {
|
|
break
|
|
}
|
|
}
|
|
b.StopTimer()
|
|
|
|
if misses > 0 {
|
|
err = fmt.Errorf("%v chunk not found out of %v", misses, total)
|
|
break Loop
|
|
}
|
|
}
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
return nil
|
|
})
|
|
if result.Error != nil {
|
|
b.Fatal(result.Error)
|
|
}
|
|
|
|
}
|