7c9314f231
* swarm: propagate ctx, enable opentracing * swarm/tracing: log error when tracing is misconfigured
268 lines
8.0 KiB
Go
268 lines
8.0 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 (
|
|
"context"
|
|
crand "crypto/rand"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"math"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/p2p/discover"
|
|
"github.com/ethereum/go-ethereum/p2p/simulations"
|
|
"github.com/ethereum/go-ethereum/rpc"
|
|
"github.com/ethereum/go-ethereum/swarm/log"
|
|
"github.com/ethereum/go-ethereum/swarm/network"
|
|
streamTesting "github.com/ethereum/go-ethereum/swarm/network/stream/testing"
|
|
"github.com/ethereum/go-ethereum/swarm/storage"
|
|
)
|
|
|
|
const dataChunkCount = 200
|
|
|
|
func TestSyncerSimulation(t *testing.T) {
|
|
testSyncBetweenNodes(t, 2, 1, dataChunkCount, true, 1)
|
|
testSyncBetweenNodes(t, 4, 1, dataChunkCount, true, 1)
|
|
testSyncBetweenNodes(t, 8, 1, dataChunkCount, true, 1)
|
|
testSyncBetweenNodes(t, 16, 1, dataChunkCount, true, 1)
|
|
}
|
|
|
|
func createMockStore(id discover.NodeID, addr *network.BzzAddr) (storage.ChunkStore, error) {
|
|
var err error
|
|
address := common.BytesToAddress(id.Bytes())
|
|
mockStore := globalStore.NewNodeStore(address)
|
|
params := storage.NewDefaultLocalStoreParams()
|
|
datadirs[id], err = ioutil.TempDir("", "localMockStore-"+id.TerminalString())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
params.Init(datadirs[id])
|
|
params.BaseKey = addr.Over()
|
|
lstore, err := storage.NewLocalStore(params, mockStore)
|
|
return lstore, nil
|
|
}
|
|
|
|
func testSyncBetweenNodes(t *testing.T, nodes, conns, chunkCount int, skipCheck bool, po uint8) {
|
|
defer setDefaultSkipCheck(defaultSkipCheck)
|
|
defaultSkipCheck = skipCheck
|
|
//data directories for each node and store
|
|
datadirs = make(map[discover.NodeID]string)
|
|
if *useMockStore {
|
|
createStoreFunc = createMockStore
|
|
createGlobalStore()
|
|
} else {
|
|
createStoreFunc = createTestLocalStorageFromSim
|
|
}
|
|
defer datadirsCleanup()
|
|
|
|
registries = make(map[discover.NodeID]*TestRegistry)
|
|
toAddr = func(id discover.NodeID) *network.BzzAddr {
|
|
addr := network.NewAddrFromNodeID(id)
|
|
//hack to put addresses in same space
|
|
addr.OAddr[0] = byte(0)
|
|
return addr
|
|
}
|
|
conf := &streamTesting.RunConfig{
|
|
Adapter: *adapter,
|
|
NodeCount: nodes,
|
|
ConnLevel: conns,
|
|
ToAddr: toAddr,
|
|
Services: services,
|
|
EnableMsgEvents: false,
|
|
}
|
|
// HACK: these are global variables in the test so that they are available for
|
|
// the service constructor function
|
|
// TODO: will this work with exec/docker adapter?
|
|
// localstore of nodes made available for action and check calls
|
|
stores = make(map[discover.NodeID]storage.ChunkStore)
|
|
deliveries = make(map[discover.NodeID]*Delivery)
|
|
// create context for simulation run
|
|
timeout := 30 * time.Second
|
|
ctx, cancel := context.WithTimeout(context.Background(), timeout)
|
|
// defer cancel should come before defer simulation teardown
|
|
defer cancel()
|
|
|
|
// create simulation network with the config
|
|
sim, teardown, err := streamTesting.NewSimulation(conf)
|
|
var rpcSubscriptionsWg sync.WaitGroup
|
|
defer func() {
|
|
rpcSubscriptionsWg.Wait()
|
|
teardown()
|
|
}()
|
|
if err != nil {
|
|
t.Fatal(err.Error())
|
|
}
|
|
|
|
nodeIndex := make(map[discover.NodeID]int)
|
|
for i, id := range sim.IDs {
|
|
nodeIndex[id] = i
|
|
if !*useMockStore {
|
|
stores[id] = sim.Stores[i]
|
|
sim.Stores[i] = stores[id]
|
|
}
|
|
}
|
|
// peerCount function gives the number of peer connections for a nodeID
|
|
// this is needed for the service run function to wait until
|
|
// each protocol instance runs and the streamer peers are available
|
|
peerCount = func(id discover.NodeID) int {
|
|
if sim.IDs[0] == id || sim.IDs[nodes-1] == id {
|
|
return 1
|
|
}
|
|
return 2
|
|
}
|
|
waitPeerErrC = make(chan error)
|
|
|
|
// create DBAPI-s for all nodes
|
|
dbs := make([]*storage.DBAPI, nodes)
|
|
for i := 0; i < nodes; i++ {
|
|
dbs[i] = storage.NewDBAPI(sim.Stores[i].(*storage.LocalStore))
|
|
}
|
|
|
|
// collect hashes in po 1 bin for each node
|
|
hashes := make([][]storage.Address, nodes)
|
|
totalHashes := 0
|
|
hashCounts := make([]int, nodes)
|
|
for i := nodes - 1; i >= 0; i-- {
|
|
if i < nodes-1 {
|
|
hashCounts[i] = hashCounts[i+1]
|
|
}
|
|
dbs[i].Iterator(0, math.MaxUint64, po, func(addr storage.Address, index uint64) bool {
|
|
hashes[i] = append(hashes[i], addr)
|
|
totalHashes++
|
|
hashCounts[i]++
|
|
return true
|
|
})
|
|
}
|
|
|
|
// errc is error channel for simulation
|
|
errc := make(chan error, 1)
|
|
quitC := make(chan struct{})
|
|
defer close(quitC)
|
|
|
|
// action is subscribe
|
|
action := func(ctx context.Context) error {
|
|
// need to wait till an aynchronous process registers the peers in streamer.peers
|
|
// that is used by Subscribe
|
|
// the global peerCount function tells how many connections each node has
|
|
// TODO: this is to be reimplemented with peerEvent watcher without global var
|
|
i := 0
|
|
for err := range waitPeerErrC {
|
|
if err != nil {
|
|
return fmt.Errorf("error waiting for peers: %s", err)
|
|
}
|
|
i++
|
|
if i == nodes {
|
|
break
|
|
}
|
|
}
|
|
// each node Subscribes to each other's swarmChunkServerStreamName
|
|
for j := 0; j < nodes-1; j++ {
|
|
id := sim.IDs[j]
|
|
sim.Stores[j] = stores[id]
|
|
err := sim.CallClient(id, func(client *rpc.Client) error {
|
|
// report disconnect events to the error channel cos peers should not disconnect
|
|
doneC, err := streamTesting.WatchDisconnections(id, client, errc, quitC)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rpcSubscriptionsWg.Add(1)
|
|
go func() {
|
|
<-doneC
|
|
rpcSubscriptionsWg.Done()
|
|
}()
|
|
ctx, cancel := context.WithTimeout(ctx, 1*time.Second)
|
|
defer cancel()
|
|
// start syncing, i.e., subscribe to upstream peers po 1 bin
|
|
sid := sim.IDs[j+1]
|
|
return client.CallContext(ctx, nil, "stream_subscribeStream", sid, NewStream("SYNC", FormatSyncBinKey(1), false), NewRange(0, 0), Top)
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
// here we distribute chunks of a random file into stores 1...nodes
|
|
rrFileStore := storage.NewFileStore(newRoundRobinStore(sim.Stores[1:]...), storage.NewFileStoreParams())
|
|
size := chunkCount * chunkSize
|
|
_, wait, err := rrFileStore.Store(ctx, io.LimitReader(crand.Reader, int64(size)), int64(size), false)
|
|
if err != nil {
|
|
t.Fatal(err.Error())
|
|
}
|
|
// need to wait cos we then immediately collect the relevant bin content
|
|
wait(ctx)
|
|
if err != nil {
|
|
t.Fatal(err.Error())
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// this makes sure check is not called before the previous call finishes
|
|
check := func(ctx context.Context, id discover.NodeID) (bool, error) {
|
|
select {
|
|
case err := <-errc:
|
|
return false, err
|
|
case <-ctx.Done():
|
|
return false, ctx.Err()
|
|
default:
|
|
}
|
|
|
|
i := nodeIndex[id]
|
|
var total, found int
|
|
|
|
for j := i; j < nodes; j++ {
|
|
total += len(hashes[j])
|
|
for _, key := range hashes[j] {
|
|
chunk, err := dbs[i].Get(ctx, key)
|
|
if err == storage.ErrFetching {
|
|
<-chunk.ReqC
|
|
} else if err != nil {
|
|
continue
|
|
}
|
|
// needed for leveldb not to be closed?
|
|
// chunk.WaitToStore()
|
|
found++
|
|
}
|
|
}
|
|
log.Debug("sync check", "node", id, "index", i, "bin", po, "found", found, "total", total)
|
|
return total == found, nil
|
|
}
|
|
|
|
conf.Step = &simulations.Step{
|
|
Action: action,
|
|
Trigger: streamTesting.Trigger(500*time.Millisecond, quitC, sim.IDs[0:nodes-1]...),
|
|
Expect: &simulations.Expectation{
|
|
Nodes: sim.IDs[0:1],
|
|
Check: check,
|
|
},
|
|
}
|
|
startedAt := time.Now()
|
|
result, err := sim.Run(ctx, conf)
|
|
finishedAt := time.Now()
|
|
if err != nil {
|
|
t.Fatalf("Setting up simulation failed: %v", err)
|
|
}
|
|
if result.Error != nil {
|
|
t.Fatalf("Simulation failed: %s", result.Error)
|
|
}
|
|
streamTesting.CheckResult(t, result, startedAt, finishedAt)
|
|
}
|