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*: Add experimental-compaction-batch-limit flag

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This commit is contained in:
Joe Betz 2019-08-14 01:56:42 -07:00 committed by Gyuho Lee
parent d57bc6e724
commit 9b51febaf5
24 changed files with 111 additions and 87 deletions
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2
CHANGELOG-3.4.md
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@ -76,6 +76,8 @@ See [code changes](https://github.com/etcd-io/etcd/compare/v3.3.0...v3.4.0) and
- Improve [heartbeat send failure logging](https://github.com/etcd-io/etcd/pull/10663).
- Support [users with no password](https://github.com/etcd-io/etcd/pull/9817) for reducing security risk introduced by leaked password. The users can only be authenticated with CommonName based auth.
- Add flag `--experimental-peer-skip-client-san-verification` to [skip verification of peer client address](https://github.com/etcd-io/etcd/pull/10524)
- Reduced default compaction batch size from 10k revisions to 1k revisions to improve p99 latency during compactions and reduced wait between compactions from 100ms to 10ms
- Add flag `--experimental-compaction-batch-limit` to [sets the maximum revisions deleted in each compaction batch](https://github.com/etcd-io/etcd/pull/11034)
### Breaking Changes

5
Documentation/op-guide/configuration.md
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@ -446,6 +446,11 @@ Follow the instructions when using these flags.
+ default: 0s
+ env variable: ETCD_EXPERIMENTAL_CORRUPT_CHECK_TIME
### --experimental-compaction-batch-limit
+ Sets the maximum revisions deleted in each compaction batch.
+ default: 1000
+ env variable: ETCD_EXPERIMENTAL_COMPACTION_BATCH_LIMIT
[build-cluster]: clustering.md#static
[reconfig]: runtime-configuration.md
[discovery]: clustering.md#discovery

2
clientv3/snapshot/v3_snapshot.go
View File

@ -383,7 +383,7 @@ func (s *v3Manager) saveDB() error {
// a lessor never timeouts leases
lessor := lease.NewLessor(s.lg, be, lease.LessorConfig{MinLeaseTTL: math.MaxInt64})
mvs := mvcc.NewStore(s.lg, be, lessor, (*initIndex)(&commit))
mvs := mvcc.NewStore(s.lg, be, lessor, (*initIndex)(&commit), mvcc.StoreConfig{CompactionBatchLimit: math.MaxInt32})
txn := mvs.Write()
btx := be.BatchTx()
del := func(k, v []byte) error {

1
embed/config.go
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@ -280,6 +280,7 @@ type Config struct {
ExperimentalBackendFreelistType string `json:"experimental-backend-bbolt-freelist-type"`
// ExperimentalEnableLeaseCheckpoint enables primary lessor to persist lease remainingTTL to prevent indefinite auto-renewal of long lived leases.
ExperimentalEnableLeaseCheckpoint bool `json:"experimental-enable-lease-checkpoint"`
ExperimentalCompactionBatchLimit int `json:"experimental-compaction-batch-limit"`
// ForceNewCluster starts a new cluster even if previously started; unsafe.
ForceNewCluster bool `json:"force-new-cluster"`

1
embed/etcd.go
View File

@ -205,6 +205,7 @@ func StartEtcd(inCfg *Config) (e *Etcd, err error) {
ForceNewCluster: cfg.ForceNewCluster,
EnableGRPCGateway: cfg.EnableGRPCGateway,
EnableLeaseCheckpoint: cfg.ExperimentalEnableLeaseCheckpoint,
CompactionBatchLimit: cfg.ExperimentalCompactionBatchLimit,
}
print(e.cfg.logger, *cfg, srvcfg, memberInitialized)
if e.Server, err = etcdserver.NewServer(srvcfg); err != nil {

1
etcdmain/config.go
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@ -255,6 +255,7 @@ func newConfig() *config {
fs.StringVar(&cfg.ec.ExperimentalEnableV2V3, "experimental-enable-v2v3", cfg.ec.ExperimentalEnableV2V3, "v3 prefix for serving emulated v2 state.")
fs.StringVar(&cfg.ec.ExperimentalBackendFreelistType, "experimental-backend-bbolt-freelist-type", cfg.ec.ExperimentalBackendFreelistType, "ExperimentalBackendFreelistType specifies the type of freelist that boltdb backend uses(array and map are supported types)")
fs.BoolVar(&cfg.ec.ExperimentalEnableLeaseCheckpoint, "experimental-enable-lease-checkpoint", false, "Enable to persist lease remaining TTL to prevent indefinite auto-renewal of long lived leases.")
fs.IntVar(&cfg.ec.ExperimentalCompactionBatchLimit, "experimental-compaction-batch-limit", cfg.ec.ExperimentalCompactionBatchLimit, "Sets the maximum revisions deleted in each compaction batch.")
// unsafe
fs.BoolVar(&cfg.ec.ForceNewCluster, "force-new-cluster", false, "Force to create a new one member cluster.")

2
etcdmain/help.go
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@ -204,6 +204,8 @@ Experimental feature:
ExperimentalBackendFreelistType specifies the type of freelist that boltdb backend uses(array and map are supported types).
--experimental-enable-lease-checkpoint
ExperimentalEnableLeaseCheckpoint enables primary lessor to persist lease remainingTTL to prevent indefinite auto-renewal of long lived leases.
--experimental-compaction-batch-limit
ExperimentalCompactionBatchLimit sets the maximum revisions deleted in each compaction batch.
Unsafe feature:
--force-new-cluster 'false'

2
etcdserver/backend.go
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@ -102,7 +102,7 @@ func openBackend(cfg ServerConfig) backend.Backend {
// case, replace the db with the snapshot db sent by the leader.
func recoverSnapshotBackend(cfg ServerConfig, oldbe backend.Backend, snapshot raftpb.Snapshot) (backend.Backend, error) {
var cIndex consistentIndex
kv := mvcc.New(cfg.Logger, oldbe, &lease.FakeLessor{}, &cIndex)
kv := mvcc.New(cfg.Logger, oldbe, &lease.FakeLessor{}, &cIndex, mvcc.StoreConfig{CompactionBatchLimit: cfg.CompactionBatchLimit})
defer kv.Close()
if snapshot.Metadata.Index <= kv.ConsistentIndex() {
return oldbe, nil

1
etcdserver/config.go
View File

@ -112,6 +112,7 @@ type ServerConfig struct {
AutoCompactionRetention time.Duration
AutoCompactionMode string
CompactionBatchLimit int
QuotaBackendBytes int64
MaxTxnOps uint

2
etcdserver/server.go
View File

@ -539,7 +539,7 @@ func NewServer(cfg ServerConfig) (srv *EtcdServer, err error) {
CheckpointInterval: cfg.LeaseCheckpointInterval,
ExpiredLeasesRetryInterval: srv.Cfg.ReqTimeout(),
})
srv.kv = mvcc.New(srv.getLogger(), srv.be, srv.lessor, &srv.consistIndex)
srv.kv = mvcc.New(srv.getLogger(), srv.be, srv.lessor, &srv.consistIndex, mvcc.StoreConfig{CompactionBatchLimit: cfg.CompactionBatchLimit})
if beExist {
kvindex := srv.kv.ConsistentIndex()
// TODO: remove kvindex != 0 checking when we do not expect users to upgrade

8
etcdserver/server_test.go
View File

@ -984,7 +984,7 @@ func TestSnapshot(t *testing.T) {
r: *r,
v2store: st,
}
srv.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &srv.consistIndex)
srv.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &srv.consistIndex, mvcc.StoreConfig{})
srv.be = be
ch := make(chan struct{}, 2)
@ -1065,7 +1065,7 @@ func TestSnapshotOrdering(t *testing.T) {
be, tmpPath := backend.NewDefaultTmpBackend()
defer os.RemoveAll(tmpPath)
s.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &s.consistIndex)
s.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &s.consistIndex, mvcc.StoreConfig{})
s.be = be
s.start()
@ -1126,7 +1126,7 @@ func TestTriggerSnap(t *testing.T) {
}
srv.applyV2 = &applierV2store{store: srv.v2store, cluster: srv.cluster}
srv.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &srv.consistIndex)
srv.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &srv.consistIndex, mvcc.StoreConfig{})
srv.be = be
srv.start()
@ -1198,7 +1198,7 @@ func TestConcurrentApplyAndSnapshotV3(t *testing.T) {
defer func() {
os.RemoveAll(tmpPath)
}()
s.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &s.consistIndex)
s.kv = mvcc.New(zap.NewExample(), be, &lease.FakeLessor{}, &s.consistIndex, mvcc.StoreConfig{})
s.be = be
s.start()

2
integration/v3_alarm_test.go
View File

@ -169,7 +169,7 @@ func TestV3CorruptAlarm(t *testing.T) {
clus.Members[0].Stop(t)
fp := filepath.Join(clus.Members[0].DataDir, "member", "snap", "db")
be := backend.NewDefaultBackend(fp)
s := mvcc.NewStore(zap.NewExample(), be, nil, &fakeConsistentIndex{13})
s := mvcc.NewStore(zap.NewExample(), be, nil, &fakeConsistentIndex{13}, mvcc.StoreConfig{})
// NOTE: cluster_proxy mode with namespacing won't set 'k', but namespace/'k'.
s.Put([]byte("abc"), []byte("def"), 0)
s.Put([]byte("xyz"), []byte("123"), 0)

38
mvcc/kv_test.go
View File

@ -76,7 +76,7 @@ func TestKVTxnRange(t *testing.T) { testKVRange(t, txnRangeFunc) }
func testKVRange(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
@ -142,7 +142,7 @@ func TestKVTxnRangeRev(t *testing.T) { testKVRangeRev(t, txnRangeFunc) }
func testKVRangeRev(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
@ -178,7 +178,7 @@ func TestKVTxnRangeBadRev(t *testing.T) { testKVRangeBadRev(t, txnRangeFunc) }
func testKVRangeBadRev(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
put3TestKVs(s)
@ -211,7 +211,7 @@ func TestKVTxnRangeLimit(t *testing.T) { testKVRangeLimit(t, txnRangeFunc) }
func testKVRangeLimit(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
@ -252,7 +252,7 @@ func TestKVTxnPutMultipleTimes(t *testing.T) { testKVPutMultipleTimes(t, txnPutF
func testKVPutMultipleTimes(t *testing.T, f putFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
@ -314,7 +314,7 @@ func testKVDeleteRange(t *testing.T, f deleteRangeFunc) {
for i, tt := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
s.Put([]byte("foo"), []byte("bar"), lease.NoLease)
s.Put([]byte("foo1"), []byte("bar1"), lease.NoLease)
@ -334,7 +334,7 @@ func TestKVTxnDeleteMultipleTimes(t *testing.T) { testKVDeleteMultipleTimes(t, t
func testKVDeleteMultipleTimes(t *testing.T, f deleteRangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar"), lease.NoLease)
@ -355,7 +355,7 @@ func testKVDeleteMultipleTimes(t *testing.T, f deleteRangeFunc) {
// test that range, put, delete on single key in sequence repeatedly works correctly.
func TestKVOperationInSequence(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
@ -402,7 +402,7 @@ func TestKVOperationInSequence(t *testing.T) {
func TestKVTxnBlockWriteOperations(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
tests := []func(){
func() { s.Put([]byte("foo"), nil, lease.NoLease) },
@ -435,7 +435,7 @@ func TestKVTxnBlockWriteOperations(t *testing.T) {
func TestKVTxnNonBlockRange(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
txn := s.Write()
@ -456,7 +456,7 @@ func TestKVTxnNonBlockRange(t *testing.T) {
// test that txn range, put, delete on single key in sequence repeatedly works correctly.
func TestKVTxnOperationInSequence(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
@ -506,7 +506,7 @@ func TestKVTxnOperationInSequence(t *testing.T) {
func TestKVCompactReserveLastValue(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar0"), 1)
@ -560,7 +560,7 @@ func TestKVCompactReserveLastValue(t *testing.T) {
func TestKVCompactBad(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar0"), lease.NoLease)
@ -593,7 +593,7 @@ func TestKVHash(t *testing.T) {
for i := 0; i < len(hashes); i++ {
var err error
b, tmpPath := backend.NewDefaultTmpBackend()
kv := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
kv := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
kv.Put([]byte("foo0"), []byte("bar0"), lease.NoLease)
kv.Put([]byte("foo1"), []byte("bar0"), lease.NoLease)
hashes[i], _, err = kv.Hash()
@ -631,7 +631,7 @@ func TestKVRestore(t *testing.T) {
}
for i, tt := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
tt(s)
var kvss [][]mvccpb.KeyValue
for k := int64(0); k < 10; k++ {
@ -643,7 +643,7 @@ func TestKVRestore(t *testing.T) {
s.Close()
// ns should recover the the previous state from backend.
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
if keysRestore := readGaugeInt(keysGauge); keysBefore != keysRestore {
t.Errorf("#%d: got %d key count, expected %d", i, keysRestore, keysBefore)
@ -675,7 +675,7 @@ func readGaugeInt(g prometheus.Gauge) int {
func TestKVSnapshot(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
wkvs := put3TestKVs(s)
@ -695,7 +695,7 @@ func TestKVSnapshot(t *testing.T) {
}
f.Close()
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer ns.Close()
r, err := ns.Range([]byte("a"), []byte("z"), RangeOptions{})
if err != nil {
@ -711,7 +711,7 @@ func TestKVSnapshot(t *testing.T) {
func TestWatchableKVWatch(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()

13
mvcc/kvstore.go
View File

@ -60,6 +60,7 @@ const (
)
var restoreChunkKeys = 10000 // non-const for testing
var defaultCompactBatchLimit = 1000
// ConsistentIndexGetter is an interface that wraps the Get method.
// Consistent index is the offset of an entry in a consistent replicated log.
@ -68,10 +69,16 @@ type ConsistentIndexGetter interface {
ConsistentIndex() uint64
}
type StoreConfig struct {
CompactionBatchLimit int
}
type store struct {
ReadView
WriteView
cfg StoreConfig
// consistentIndex caches the "consistent_index" key's value. Accessed
// through atomics so must be 64-bit aligned.
consistentIndex uint64
@ -108,8 +115,12 @@ type store struct {
// NewStore returns a new store. It is useful to create a store inside
// mvcc pkg. It should only be used for testing externally.
func NewStore(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter) *store {
func NewStore(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter, cfg StoreConfig) *store {
if cfg.CompactionBatchLimit == 0 {
cfg.CompactionBatchLimit = defaultCompactBatchLimit
}
s := &store{
cfg: cfg,
b: b,
ig: ig,
kvindex: newTreeIndex(lg),

14
mvcc/kvstore_bench_test.go
View File

@ -33,7 +33,7 @@ func (i *fakeConsistentIndex) ConsistentIndex() uint64 {
func BenchmarkStorePut(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
@ -53,7 +53,7 @@ func BenchmarkStoreRangeKey100(b *testing.B) { benchmarkStoreRange(b, 100) }
func benchmarkStoreRange(b *testing.B, n int) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
defer cleanup(s, be, tmpPath)
// 64 byte key/val
@ -81,7 +81,7 @@ func benchmarkStoreRange(b *testing.B, n int) {
func BenchmarkConsistentIndex(b *testing.B) {
fci := fakeConsistentIndex(10)
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &fci)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &fci, StoreConfig{})
defer cleanup(s, be, tmpPath)
tx := s.b.BatchTx()
@ -100,7 +100,7 @@ func BenchmarkConsistentIndex(b *testing.B) {
func BenchmarkStorePutUpdate(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
@ -119,7 +119,7 @@ func BenchmarkStorePutUpdate(b *testing.B) {
func BenchmarkStoreTxnPut(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
@ -140,7 +140,7 @@ func BenchmarkStoreTxnPut(b *testing.B) {
func benchmarkStoreRestore(revsPerKey int, b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
// use closure to capture 's' to pick up the reassignment
defer func() { cleanup(s, be, tmpPath) }()
@ -160,7 +160,7 @@ func benchmarkStoreRestore(revsPerKey int, b *testing.B) {
b.ReportAllocs()
b.ResetTimer()
s = NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s = NewStore(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
}
func BenchmarkStoreRestoreRevs1(b *testing.B) {

11
mvcc/kvstore_compaction.go
View File

@ -30,25 +30,23 @@ func (s *store) scheduleCompaction(compactMainRev int64, keep map[revision]struc
end := make([]byte, 8)
binary.BigEndian.PutUint64(end, uint64(compactMainRev+1))
batchsize := int64(1000)
last := make([]byte, 8+1+8)
for {
var rev revision
start := time.Now()
tx := s.b.BatchTx()
tx.Lock()
keys, _ := tx.UnsafeRange(keyBucketName, last, end, batchsize)
keys, _ := tx.UnsafeRange(keyBucketName, last, end, int64(s.cfg.CompactionBatchLimit))
for _, key := range keys {
rev = bytesToRev(key)
if _, ok := keep[rev]; !ok {
tx.UnsafeDelete(keyBucketName, key)
keyCompactions++
}
}
if len(keys) < int(batchsize) {
if len(keys) < s.cfg.CompactionBatchLimit {
rbytes := make([]byte, 8+1+8)
revToBytes(revision{main: compactMainRev}, rbytes)
tx.UnsafePut(metaBucketName, finishedCompactKeyName, rbytes)
@ -60,7 +58,7 @@ func (s *store) scheduleCompaction(compactMainRev int64, keep map[revision]struc
zap.Duration("took", time.Since(totalStart)),
)
} else {
plog.Printf("finished scheduled compaction at %d (took %v)", compactMainRev, time.Since(totalStart))
plog.Infof("finished scheduled compaction at %d (took %v)", compactMainRev, time.Since(totalStart))
}
return true
}
@ -68,6 +66,7 @@ func (s *store) scheduleCompaction(compactMainRev int64, keep map[revision]struc
// update last
revToBytes(revision{main: rev.main, sub: rev.sub + 1}, last)
tx.Unlock()
// Immediately commit the compaction deletes instead of letting them accumulate in the write buffer
s.b.ForceCommit()
dbCompactionPauseMs.Observe(float64(time.Since(start) / time.Millisecond))

6
mvcc/kvstore_compaction_test.go
View File

@ -65,7 +65,7 @@ func TestScheduleCompaction(t *testing.T) {
}
for i, tt := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
tx := s.b.BatchTx()
tx.Lock()
@ -99,7 +99,7 @@ func TestScheduleCompaction(t *testing.T) {
func TestCompactAllAndRestore(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s0 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s0 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
s0.Put([]byte("foo"), []byte("bar"), lease.NoLease)
@ -125,7 +125,7 @@ func TestCompactAllAndRestore(t *testing.T) {
t.Fatal(err)
}
s1 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s1 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
if s1.Rev() != rev {
t.Errorf("rev = %v, want %v", s1.Rev(), rev)
}

23
mvcc/kvstore_test.go
View File

@ -40,7 +40,7 @@ import (
func TestStoreRev(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer s.Close()
defer os.Remove(tmpPath)
@ -424,7 +424,7 @@ func TestRestoreDelete(t *testing.T) {
defer func() { restoreChunkKeys = oldChunk }()
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
keys := make(map[string]struct{})
@ -450,7 +450,7 @@ func TestRestoreDelete(t *testing.T) {
}
s.Close()
s = NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s = NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer s.Close()
for i := 0; i < 20; i++ {
ks := fmt.Sprintf("foo-%d", i)
@ -472,7 +472,7 @@ func TestRestoreContinueUnfinishedCompaction(t *testing.T) {
tests := []string{"recreate", "restore"}
for _, test := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s0 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s0 := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
s0.Put([]byte("foo"), []byte("bar"), lease.NoLease)
@ -492,7 +492,7 @@ func TestRestoreContinueUnfinishedCompaction(t *testing.T) {
var s *store
switch test {
case "recreate":
s = NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s = NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
case "restore":
s0.Restore(b)
s = s0
@ -534,7 +534,7 @@ type hashKVResult struct {
// TestHashKVWhenCompacting ensures that HashKV returns correct hash when compacting.
func TestHashKVWhenCompacting(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
rev := 10000
@ -602,10 +602,10 @@ func TestHashKVWhenCompacting(t *testing.T) {
// correct hash value with latest revision.
func TestHashKVZeroRevision(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
rev := 1000
rev := 10000
for i := 2; i <= rev; i++ {
s.Put([]byte("foo"), []byte(fmt.Sprintf("bar%d", i)), lease.NoLease)
}
@ -635,7 +635,7 @@ func TestTxnPut(t *testing.T) {
vals := createBytesSlice(bytesN, sliceN)
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
for i := 0; i < sliceN; i++ {
@ -651,7 +651,7 @@ func TestTxnPut(t *testing.T) {
// TestConcurrentReadNotBlockingWrite ensures Read does not blocking Write after its creation
func TestConcurrentReadNotBlockingWrite(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
// write something to read later
@ -720,7 +720,7 @@ func TestConcurrentReadTxAndWrite(t *testing.T) {
mu sync.Mutex // mu protectes committedKVs
)
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer os.Remove(tmpPath)
var wg sync.WaitGroup
@ -846,6 +846,7 @@ func newFakeStore() *store {
indexCompactRespc: make(chan map[revision]struct{}, 1),
}
s := &store{
cfg: StoreConfig{CompactionBatchLimit: 10000},
b: b,
le: &lease.FakeLessor{},
kvindex: fi,

8
mvcc/watchable_store.go
View File

@ -68,13 +68,13 @@ type watchableStore struct {
// cancel operations.
type cancelFunc func()
func New(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter) ConsistentWatchableKV {
return newWatchableStore(lg, b, le, ig)
func New(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter, cfg StoreConfig) ConsistentWatchableKV {
return newWatchableStore(lg, b, le, ig, cfg)
}
func newWatchableStore(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter) *watchableStore {
func newWatchableStore(lg *zap.Logger, b backend.Backend, le lease.Lessor, ig ConsistentIndexGetter, cfg StoreConfig) *watchableStore {
s := &watchableStore{
store: NewStore(lg, b, le, ig),
store: NewStore(lg, b, le, ig, cfg),
victimc: make(chan struct{}, 1),
unsynced: newWatcherGroup(),
synced: newWatcherGroup(),

10
mvcc/watchable_store_bench_test.go
View File

@ -27,7 +27,7 @@ import (
func BenchmarkWatchableStorePut(b *testing.B) {
be, tmpPath := backend.NewDefaultTmpBackend()
s := New(zap.NewExample(), be, &lease.FakeLessor{}, nil)
s := New(zap.NewExample(), be, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
@ -48,7 +48,7 @@ func BenchmarkWatchableStorePut(b *testing.B) {
func BenchmarkWatchableStoreTxnPut(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := New(zap.NewExample(), be, &lease.FakeLessor{}, &i)
s := New(zap.NewExample(), be, &lease.FakeLessor{}, &i, StoreConfig{})
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
@ -79,7 +79,7 @@ func BenchmarkWatchableStoreWatchPutUnsync(b *testing.B) {
func benchmarkWatchableStoreWatchPut(b *testing.B, synced bool) {
be, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, be, tmpPath)
k := []byte("testkey")
@ -122,7 +122,7 @@ func benchmarkWatchableStoreWatchPut(b *testing.B, synced bool) {
// we should put to simulate the real-world use cases.
func BenchmarkWatchableStoreUnsyncedCancel(b *testing.B) {
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, nil)
s := NewStore(zap.NewExample(), be, &lease.FakeLessor{}, nil, StoreConfig{})
// manually create watchableStore instead of newWatchableStore
// because newWatchableStore periodically calls syncWatchersLoop
@ -179,7 +179,7 @@ func BenchmarkWatchableStoreUnsyncedCancel(b *testing.B) {
func BenchmarkWatchableStoreSyncedCancel(b *testing.B) {
be, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()

26
mvcc/watchable_store_test.go
View File

@ -31,7 +31,7 @@ import (
func TestWatch(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -53,7 +53,7 @@ func TestWatch(t *testing.T) {
func TestNewWatcherCancel(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -85,7 +85,7 @@ func TestCancelUnsynced(t *testing.T) {
// method to sync watchers in unsynced map. We want to keep watchers
// in unsynced to test if syncWatchers works as expected.
s := &watchableStore{
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil),
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}),
unsynced: newWatcherGroup(),
// to make the test not crash from assigning to nil map.
@ -140,7 +140,7 @@ func TestSyncWatchers(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := &watchableStore{
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil),
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}),
unsynced: newWatcherGroup(),
synced: newWatcherGroup(),
}
@ -223,7 +223,7 @@ func TestSyncWatchers(t *testing.T) {
// TestWatchCompacted tests a watcher that watches on a compacted revision.
func TestWatchCompacted(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -260,7 +260,7 @@ func TestWatchCompacted(t *testing.T) {
func TestWatchFutureRev(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -301,7 +301,7 @@ func TestWatchRestore(t *testing.T) {
test := func(delay time.Duration) func(t *testing.T) {
return func(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s, b, tmpPath)
testKey := []byte("foo")
@ -309,7 +309,7 @@ func TestWatchRestore(t *testing.T) {
rev := s.Put(testKey, testValue, lease.NoLease)
newBackend, newPath := backend.NewDefaultTmpBackend()
newStore := newWatchableStore(zap.NewExample(), newBackend, &lease.FakeLessor{}, nil)
newStore := newWatchableStore(zap.NewExample(), newBackend, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(newStore, newBackend, newPath)
w := newStore.NewWatchStream()
@ -347,11 +347,11 @@ func TestWatchRestore(t *testing.T) {
// 5. choose the watcher from step 1, without panic
func TestWatchRestoreSyncedWatcher(t *testing.T) {
b1, b1Path := backend.NewDefaultTmpBackend()
s1 := newWatchableStore(zap.NewExample(), b1, &lease.FakeLessor{}, nil)
s1 := newWatchableStore(zap.NewExample(), b1, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s1, b1, b1Path)
b2, b2Path := backend.NewDefaultTmpBackend()
s2 := newWatchableStore(zap.NewExample(), b2, &lease.FakeLessor{}, nil)
s2 := newWatchableStore(zap.NewExample(), b2, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(s2, b2, b2Path)
testKey, testValue := []byte("foo"), []byte("bar")
@ -398,7 +398,7 @@ func TestWatchRestoreSyncedWatcher(t *testing.T) {
// TestWatchBatchUnsynced tests batching on unsynced watchers
func TestWatchBatchUnsynced(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
oldMaxRevs := watchBatchMaxRevs
defer func() {
@ -532,7 +532,7 @@ func TestWatchVictims(t *testing.T) {
oldChanBufLen, oldMaxWatchersPerSync := chanBufLen, maxWatchersPerSync
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -610,7 +610,7 @@ func TestWatchVictims(t *testing.T) {
// canceling its watches.
func TestStressWatchCancelClose(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()

2
mvcc/watcher_bench_test.go
View File

@ -26,7 +26,7 @@ import (
func BenchmarkKVWatcherMemoryUsage(b *testing.B) {
be, tmpPath := backend.NewDefaultTmpBackend()
watchable := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil)
watchable := newWatchableStore(zap.NewExample(), be, &lease.FakeLessor{}, nil, StoreConfig{})
defer cleanup(watchable, be, tmpPath)

16
mvcc/watcher_test.go
View File

@ -32,7 +32,7 @@ import (
// and the watched event attaches the correct watchID.
func TestWatcherWatchID(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
@ -82,7 +82,7 @@ func TestWatcherWatchID(t *testing.T) {
func TestWatcherRequestsCustomID(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
@ -119,7 +119,7 @@ func TestWatcherRequestsCustomID(t *testing.T) {
// and returns events with matching prefixes.
func TestWatcherWatchPrefix(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
@ -193,7 +193,7 @@ func TestWatcherWatchPrefix(t *testing.T) {
// does not create watcher, which panics when canceling in range tree.
func TestWatcherWatchWrongRange(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
@ -213,7 +213,7 @@ func TestWatcherWatchWrongRange(t *testing.T) {
func TestWatchDeleteRange(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s := newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{})
defer func() {
s.store.Close()
@ -252,7 +252,7 @@ func TestWatchDeleteRange(t *testing.T) {
// with given id inside watchStream.
func TestWatchStreamCancelWatcherByID(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
@ -295,7 +295,7 @@ func TestWatcherRequestProgress(t *testing.T) {
// method to sync watchers in unsynced map. We want to keep watchers
// in unsynced to test if syncWatchers works as expected.
s := &watchableStore{
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil),
store: NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}),
unsynced: newWatcherGroup(),
synced: newWatcherGroup(),
}
@ -344,7 +344,7 @@ func TestWatcherRequestProgress(t *testing.T) {
func TestWatcherWatchWithFilter(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil, StoreConfig{}))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()

2
tools/benchmark/cmd/mvcc.go
View File

@ -38,7 +38,7 @@ func initMVCC() {
bcfg := backend.DefaultBackendConfig()
bcfg.Path, bcfg.BatchInterval, bcfg.BatchLimit = "mvcc-bench", time.Duration(batchInterval)*time.Millisecond, batchLimit
be := backend.New(bcfg)
s = mvcc.NewStore(zap.NewExample(), be, &lease.FakeLessor{}, nil)
s = mvcc.NewStore(zap.NewExample(), be, &lease.FakeLessor{}, nil, mvcc.StoreConfig{})
os.Remove("mvcc-bench") // boltDB has an opened fd, so removing the file is ok
}