lotus/blockstore/splitstore/splitstore_test.go
2021-07-09 19:24:44 +03:00

334 lines
6.6 KiB
Go

package splitstore
import (
"context"
"errors"
"fmt"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/filecoin-project/go-state-types/abi"
"github.com/filecoin-project/lotus/blockstore"
"github.com/filecoin-project/lotus/chain/types"
"github.com/filecoin-project/lotus/chain/types/mock"
blocks "github.com/ipfs/go-block-format"
cid "github.com/ipfs/go-cid"
datastore "github.com/ipfs/go-datastore"
dssync "github.com/ipfs/go-datastore/sync"
logging "github.com/ipfs/go-log/v2"
)
func init() {
CompactionThreshold = 5
CompactionBoundary = 2
logging.SetLogLevel("splitstore", "DEBUG")
}
func testSplitStore(t *testing.T, cfg *Config) {
chain := &mockChain{t: t}
// the myriads of stores
ds := dssync.MutexWrap(datastore.NewMapDatastore())
hot := newMockStore()
cold := newMockStore()
// this is necessary to avoid the garbage mock puts in the blocks
garbage := blocks.NewBlock([]byte{1, 2, 3})
err := cold.Put(garbage)
if err != nil {
t.Fatal(err)
}
// genesis
genBlock := mock.MkBlock(nil, 0, 0)
genBlock.Messages = garbage.Cid()
genBlock.ParentMessageReceipts = garbage.Cid()
genBlock.ParentStateRoot = garbage.Cid()
genBlock.Timestamp = uint64(time.Now().Unix())
genTs := mock.TipSet(genBlock)
chain.push(genTs)
// put the genesis block to cold store
blk, err := genBlock.ToStorageBlock()
if err != nil {
t.Fatal(err)
}
err = cold.Put(blk)
if err != nil {
t.Fatal(err)
}
// open the splitstore
ss, err := Open("", ds, hot, cold, cfg)
if err != nil {
t.Fatal(err)
}
defer ss.Close() //nolint
err = ss.Start(chain)
if err != nil {
t.Fatal(err)
}
// make some tipsets, but not enough to cause compaction
mkBlock := func(curTs *types.TipSet, i int, stateRoot blocks.Block) *types.TipSet {
blk := mock.MkBlock(curTs, uint64(i), uint64(i))
blk.Messages = garbage.Cid()
blk.ParentMessageReceipts = garbage.Cid()
blk.ParentStateRoot = stateRoot.Cid()
blk.Timestamp = uint64(time.Now().Unix())
sblk, err := blk.ToStorageBlock()
if err != nil {
t.Fatal(err)
}
err = ss.Put(stateRoot)
if err != nil {
t.Fatal(err)
}
err = ss.Put(sblk)
if err != nil {
t.Fatal(err)
}
ts := mock.TipSet(blk)
chain.push(ts)
return ts
}
waitForCompaction := func() {
for atomic.LoadInt32(&ss.compacting) == 1 {
time.Sleep(100 * time.Millisecond)
}
}
curTs := genTs
for i := 1; i < 5; i++ {
stateRoot := blocks.NewBlock([]byte{byte(i), 3, 3, 7})
curTs = mkBlock(curTs, i, stateRoot)
waitForCompaction()
}
// count objects in the cold and hot stores
countBlocks := func(bs blockstore.Blockstore) int {
count := 0
_ = bs.(blockstore.BlockstoreIterator).ForEachKey(func(_ cid.Cid) error {
count++
return nil
})
return count
}
coldCnt := countBlocks(cold)
hotCnt := countBlocks(hot)
if coldCnt != 2 {
t.Errorf("expected %d blocks, but got %d", 2, coldCnt)
}
if hotCnt != 10 {
t.Errorf("expected %d blocks, but got %d", 10, hotCnt)
}
// trigger a compaction
for i := 5; i < 10; i++ {
stateRoot := blocks.NewBlock([]byte{byte(i), 3, 3, 7})
curTs = mkBlock(curTs, i, stateRoot)
waitForCompaction()
}
coldCnt = countBlocks(cold)
hotCnt = countBlocks(hot)
if coldCnt != 5 {
t.Errorf("expected %d cold blocks, but got %d", 5, coldCnt)
}
if hotCnt != 17 {
t.Errorf("expected %d hot blocks, but got %d", 17, hotCnt)
}
// Make sure we can revert without panicking.
chain.revert(2)
}
func TestSplitStoreCompaction(t *testing.T) {
testSplitStore(t, &Config{MarkSetType: "map"})
}
type mockChain struct {
t testing.TB
sync.Mutex
genesis *types.BlockHeader
tipsets []*types.TipSet
listener func(revert []*types.TipSet, apply []*types.TipSet) error
}
func (c *mockChain) push(ts *types.TipSet) {
c.Lock()
c.tipsets = append(c.tipsets, ts)
if c.genesis == nil {
c.genesis = ts.Blocks()[0]
}
c.Unlock()
if c.listener != nil {
err := c.listener(nil, []*types.TipSet{ts})
if err != nil {
c.t.Errorf("mockchain: error dispatching listener: %s", err)
}
}
}
func (c *mockChain) revert(count int) {
c.Lock()
revert := make([]*types.TipSet, count)
if count > len(c.tipsets) {
c.Unlock()
c.t.Fatalf("not enough tipsets to revert")
}
copy(revert, c.tipsets[len(c.tipsets)-count:])
c.tipsets = c.tipsets[:len(c.tipsets)-count]
c.Unlock()
if c.listener != nil {
err := c.listener(revert, nil)
if err != nil {
c.t.Errorf("mockchain: error dispatching listener: %s", err)
}
}
}
func (c *mockChain) GetTipsetByHeight(_ context.Context, epoch abi.ChainEpoch, _ *types.TipSet, _ bool) (*types.TipSet, error) {
c.Lock()
defer c.Unlock()
iEpoch := int(epoch)
if iEpoch > len(c.tipsets) {
return nil, fmt.Errorf("bad epoch %d", epoch)
}
return c.tipsets[iEpoch], nil
}
func (c *mockChain) GetHeaviestTipSet() *types.TipSet {
c.Lock()
defer c.Unlock()
return c.tipsets[len(c.tipsets)-1]
}
func (c *mockChain) SubscribeHeadChanges(change func(revert []*types.TipSet, apply []*types.TipSet) error) {
c.listener = change
}
type mockStore struct {
mx sync.Mutex
set map[cid.Cid]blocks.Block
}
func newMockStore() *mockStore {
return &mockStore{set: make(map[cid.Cid]blocks.Block)}
}
func (b *mockStore) Has(cid cid.Cid) (bool, error) {
b.mx.Lock()
defer b.mx.Unlock()
_, ok := b.set[cid]
return ok, nil
}
func (b *mockStore) HashOnRead(hor bool) {}
func (b *mockStore) Get(cid cid.Cid) (blocks.Block, error) {
b.mx.Lock()
defer b.mx.Unlock()
blk, ok := b.set[cid]
if !ok {
return nil, blockstore.ErrNotFound
}
return blk, nil
}
func (b *mockStore) GetSize(cid cid.Cid) (int, error) {
blk, err := b.Get(cid)
if err != nil {
return 0, err
}
return len(blk.RawData()), nil
}
func (b *mockStore) View(cid cid.Cid, f func([]byte) error) error {
blk, err := b.Get(cid)
if err != nil {
return err
}
return f(blk.RawData())
}
func (b *mockStore) Put(blk blocks.Block) error {
b.mx.Lock()
defer b.mx.Unlock()
b.set[blk.Cid()] = blk
return nil
}
func (b *mockStore) PutMany(blks []blocks.Block) error {
b.mx.Lock()
defer b.mx.Unlock()
for _, blk := range blks {
b.set[blk.Cid()] = blk
}
return nil
}
func (b *mockStore) DeleteBlock(cid cid.Cid) error {
b.mx.Lock()
defer b.mx.Unlock()
delete(b.set, cid)
return nil
}
func (b *mockStore) DeleteMany(cids []cid.Cid) error {
b.mx.Lock()
defer b.mx.Unlock()
for _, c := range cids {
delete(b.set, c)
}
return nil
}
func (b *mockStore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
return nil, errors.New("not implemented")
}
func (b *mockStore) ForEachKey(f func(cid.Cid) error) error {
b.mx.Lock()
defer b.mx.Unlock()
for c := range b.set {
err := f(c)
if err != nil {
return err
}
}
return nil
}
func (b *mockStore) Close() error {
return nil
}