version: 3.3.0-rc.2

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>

Documentation/op-guide/maintenance.md

@@ -87,7 +87,7 @@ Removing excessive keyspace data and defragmenting the backend database will put
 
 ```sh
 # get current revision
-$ rev=$(ETCDCTL_API=3 etcdctl --endpoints=:2379 endpoint status --write-out="json" | egrep -o '"revision":[0-9]*' | egrep -o '[0-9]*')
+$ rev=$(ETCDCTL_API=3 etcdctl --endpoints=:2379 endpoint status --write-out="json" | egrep -o '"revision":[0-9]*' | egrep -o '[0-9].*')
 # compact away all old revisions
 $ ETCDCTL_API=3 etcdctl compact $rev
 compacted revision 1516

clientv3/integration/black_hole_test.go

@@ -54,7 +54,7 @@ func TestBalancerUnderBlackholeKeepAliveWatch(t *testing.T) {
 	// TODO: only send healthy endpoint to gRPC so gRPC wont waste time to
 	// dial for unhealthy endpoint.
 	// then we can reduce 3s to 1s.
-	timeout := pingInterval + 3*time.Second
+	timeout := pingInterval + integration.RequestWaitTimeout
 
 	cli, err := clientv3.New(ccfg)
 	if err != nil {

clientv3/integration/dial_test.go

@@ -121,7 +121,7 @@ func testDialSetEndpoints(t *testing.T, setBefore bool) {
 	if !setBefore {
 		cli.SetEndpoints(eps[toKill%3], eps[(toKill+1)%3])
 	}
-	ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), integration.RequestWaitTimeout)
 	if _, err = cli.Get(ctx, "foo", clientv3.WithSerializable()); err != nil {
 		t.Fatal(err)
 	}

clientv3/integration/kv_test.go

@@ -453,7 +453,7 @@ func TestKVGetErrConnClosed(t *testing.T) {
 	clus.TakeClient(0)
 
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("kv.Get took too long")
 	case <-donec:
 	}
@@ -480,7 +480,7 @@ func TestKVNewAfterClose(t *testing.T) {
 		close(donec)
 	}()
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("kv.Get took too long")
 	case <-donec:
 	}

clientv3/integration/lease_test.go

@@ -299,7 +299,7 @@ func TestLeaseGrantErrConnClosed(t *testing.T) {
 	}
 
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("le.Grant took too long")
 	case <-donec:
 	}
@@ -325,7 +325,7 @@ func TestLeaseGrantNewAfterClose(t *testing.T) {
 		close(donec)
 	}()
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("le.Grant took too long")
 	case <-donec:
 	}
@@ -357,7 +357,7 @@ func TestLeaseRevokeNewAfterClose(t *testing.T) {
 		close(donec)
 	}()
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("le.Revoke took too long")
 	case <-donec:
 	}

clientv3/integration/network_partition_test.go

@@ -234,7 +234,7 @@ func testBalancerUnderNetworkPartitionWatch(t *testing.T, isolateLeader bool) {
 	wch := watchCli.Watch(clientv3.WithRequireLeader(context.Background()), "foo", clientv3.WithCreatedNotify())
 	select {
 	case <-wch:
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("took too long to create watch")
 	}
 
@@ -252,7 +252,7 @@ func testBalancerUnderNetworkPartitionWatch(t *testing.T, isolateLeader bool) {
 		if err = ev.Err(); err != rpctypes.ErrNoLeader {
 			t.Fatalf("expected %v, got %v", rpctypes.ErrNoLeader, err)
 		}
-	case <-time.After(3 * time.Second): // enough time to detect leader lost
+	case <-time.After(integration.RequestWaitTimeout): // enough time to detect leader lost
 		t.Fatal("took too long to detect leader lost")
 	}
 }

clientv3/integration/server_shutdown_test.go

@@ -63,7 +63,7 @@ func TestBalancerUnderServerShutdownWatch(t *testing.T) {
 	wch := watchCli.Watch(context.Background(), key, clientv3.WithCreatedNotify())
 	select {
 	case <-wch:
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("took too long to create watch")
 	}
 
@@ -348,7 +348,7 @@ func testBalancerUnderServerStopInflightRangeOnRestart(t *testing.T, linearizabl
 	clus.Members[target].Restart(t)
 
 	select {
-	case <-time.After(clientTimeout + 3*time.Second):
+	case <-time.After(clientTimeout + integration.RequestWaitTimeout):
 		t.Fatalf("timed out waiting for Get [linearizable: %v, opt: %+v]", linearizable, opt)
 	case <-donec:
 	}

clientv3/integration/watch_test.go

@@ -678,7 +678,7 @@ func TestWatchErrConnClosed(t *testing.T) {
 	clus.TakeClient(0)
 
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("wc.Watch took too long")
 	case <-donec:
 	}
@@ -705,7 +705,7 @@ func TestWatchAfterClose(t *testing.T) {
 		close(donec)
 	}()
 	select {
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("wc.Watch took too long")
 	case <-donec:
 	}
@@ -751,7 +751,7 @@ func TestWatchWithRequireLeader(t *testing.T) {
 		if resp.Err() != rpctypes.ErrNoLeader {
 			t.Fatalf("expected %v watch response error, got %+v", rpctypes.ErrNoLeader, resp)
 		}
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("watch without leader took too long to close")
 	}
 
@@ -760,7 +760,7 @@ func TestWatchWithRequireLeader(t *testing.T) {
 		if ok {
 			t.Fatalf("expected closed channel, got response %v", resp)
 		}
-	case <-time.After(3 * time.Second):
+	case <-time.After(integration.RequestWaitTimeout):
 		t.Fatal("waited too long for channel to close")
 	}
 

embed/etcd.go

@@ -41,6 +41,7 @@ import (
 	"github.com/coreos/etcd/rafthttp"
 
 	"github.com/coreos/pkg/capnslog"
+	"github.com/grpc-ecosystem/go-grpc-prometheus"
 	"github.com/soheilhy/cmux"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/keepalive"
@@ -523,6 +524,10 @@ func (e *Etcd) serveClients() (err error) {
 }
 
 func (e *Etcd) serveMetrics() (err error) {
+	if e.cfg.Metrics == "extensive" {
+		grpc_prometheus.EnableHandlingTimeHistogram()
+	}
+
 	if len(e.cfg.ListenMetricsUrls) > 0 {
 		metricsMux := http.NewServeMux()
 		etcdhttp.HandleMetricsHealth(metricsMux, e.Server)

etcdctl/README.md

@@ -874,6 +874,8 @@ The snapshot restore options closely resemble to those used in the `etcd` comman
 
 - data-dir -- Path to the data directory. Uses \<name\>.etcd if none given.
 
+- wal-dir -- Path to the WAL directory. Uses data directory if none given.
+
 - initial-cluster -- The initial cluster configuration for the restored etcd cluster.
 
 - initial-cluster-token -- Initial cluster token for the restored etcd cluster.

etcdctl/ctlv3/command/snapshot_command.go

@@ -56,6 +56,7 @@ var (
 	restoreCluster      string
 	restoreClusterToken string
 	restoreDataDir      string
+	restoreWalDir       string
 	restorePeerURLs     string
 	restoreName         string
 	skipHashCheck       bool
@@ -99,6 +100,7 @@ func NewSnapshotRestoreCommand() *cobra.Command {
 		Run:   snapshotRestoreCommandFunc,
 	}
 	cmd.Flags().StringVar(&restoreDataDir, "data-dir", "", "Path to the data directory")
+	cmd.Flags().StringVar(&restoreWalDir, "wal-dir", "", "Path to the WAL directory (use --data-dir if none given)")
 	cmd.Flags().StringVar(&restoreCluster, "initial-cluster", initialClusterFromName(defaultName), "Initial cluster configuration for restore bootstrap")
 	cmd.Flags().StringVar(&restoreClusterToken, "initial-cluster-token", "etcd-cluster", "Initial cluster token for the etcd cluster during restore bootstrap")
 	cmd.Flags().StringVar(&restorePeerURLs, "initial-advertise-peer-urls", defaultInitialAdvertisePeerURLs, "List of this member's peer URLs to advertise to the rest of the cluster")
@@ -187,7 +189,10 @@ func snapshotRestoreCommandFunc(cmd *cobra.Command, args []string) {
 		basedir = restoreName + ".etcd"
 	}
 
-	waldir := filepath.Join(basedir, "member", "wal")
+	waldir := restoreWalDir
+	if waldir == "" {
+		waldir = filepath.Join(basedir, "member", "wal")
+	}
 	snapdir := filepath.Join(basedir, "member", "snap")
 
 	if _, err := os.Stat(basedir); err == nil {

etcdmain/etcd.go

@@ -40,7 +40,6 @@ import (
 	"github.com/coreos/etcd/version"
 
 	"github.com/coreos/pkg/capnslog"
-	"github.com/grpc-ecosystem/go-grpc-prometheus"
 	"google.golang.org/grpc"
 )
 
@@ -179,10 +178,6 @@ func startEtcdOrProxyV2() {
 
 // startEtcd runs StartEtcd in addition to hooks needed for standalone etcd.
 func startEtcd(cfg *embed.Config) (<-chan struct{}, <-chan error, error) {
-	if cfg.Metrics == "extensive" {
-		grpc_prometheus.EnableHandlingTimeHistogram()
-	}
-
 	e, err := embed.StartEtcd(cfg)
 	if err != nil {
 		return nil, nil, err
@@ -392,6 +387,9 @@ func checkSupportArch() {
 	if runtime.GOARCH == "amd64" || runtime.GOARCH == "ppc64le" {
 		return
 	}
+	// unsupported arch only configured via environment variable
+	// so unset here to not parse through flag
+	defer os.Unsetenv("ETCD_UNSUPPORTED_ARCH")
 	if env, ok := os.LookupEnv("ETCD_UNSUPPORTED_ARCH"); ok && env == runtime.GOARCH {
 		plog.Warningf("running etcd on unsupported architecture %q since ETCD_UNSUPPORTED_ARCH is set", env)
 		return

etcdserver/api/v3rpc/lease.go

@@ -107,7 +107,11 @@ func (ls *LeaseServer) leaseKeepAlive(stream pb.Lease_LeaseKeepAliveServer) erro
 			return nil
 		}
 		if err != nil {
-			plog.Debugf("failed to receive lease keepalive request from gRPC stream (%q)", err.Error())
+			if isClientCtxErr(stream.Context().Err(), err) {
+				plog.Debugf("failed to receive lease keepalive request from gRPC stream (%q)", err.Error())
+			} else {
+				plog.Warningf("failed to receive lease keepalive request from gRPC stream (%q)", err.Error())
+			}
 			return err
 		}
 
@@ -133,7 +137,11 @@ func (ls *LeaseServer) leaseKeepAlive(stream pb.Lease_LeaseKeepAliveServer) erro
 		resp.TTL = ttl
 		err = stream.Send(resp)
 		if err != nil {
-			plog.Debugf("failed to send lease keepalive response to gRPC stream (%q)", err.Error())
+			if isClientCtxErr(stream.Context().Err(), err) {
+				plog.Debugf("failed to send lease keepalive response to gRPC stream (%q)", err.Error())
+			} else {
+				plog.Warningf("failed to send lease keepalive response to gRPC stream (%q)", err.Error())
+			}
 			return err
 		}
 	}

etcdserver/api/v3rpc/util.go

@@ -81,3 +81,16 @@ func togRPCError(err error) error {
 	}
 	return grpcErr
 }
+
+func isClientCtxErr(ctxErr error, err error) bool {
+	if ctxErr != nil {
+		return true
+	}
+
+	ev, ok := status.FromError(err)
+	if !ok {
+		return false
+	}
+	code := ev.Code()
+	return code == codes.Canceled || code == codes.DeadlineExceeded
+}

etcdserver/api/v3rpc/watch.go

@@ -140,7 +140,11 @@ func (ws *watchServer) Watch(stream pb.Watch_WatchServer) (err error) {
 	// deadlock when calling sws.close().
 	go func() {
 		if rerr := sws.recvLoop(); rerr != nil {
-			plog.Debugf("failed to receive watch request from gRPC stream (%q)", rerr.Error())
+			if isClientCtxErr(stream.Context().Err(), rerr) {
+				plog.Debugf("failed to receive watch request from gRPC stream (%q)", rerr.Error())
+			} else {
+				plog.Warningf("failed to receive watch request from gRPC stream (%q)", rerr.Error())
+			}
 			errc <- rerr
 		}
 	}()
@@ -339,7 +343,11 @@ func (sws *serverWatchStream) sendLoop() {
 
 			mvcc.ReportEventReceived(len(evs))
 			if err := sws.gRPCStream.Send(wr); err != nil {
-				plog.Debugf("failed to send watch response to gRPC stream (%q)", err.Error())
+				if isClientCtxErr(sws.gRPCStream.Context().Err(), err) {
+					plog.Debugf("failed to send watch response to gRPC stream (%q)", err.Error())
+				} else {
+					plog.Warningf("failed to send watch response to gRPC stream (%q)", err.Error())
+				}
 				return
 			}
 
@@ -356,7 +364,11 @@ func (sws *serverWatchStream) sendLoop() {
 			}
 
 			if err := sws.gRPCStream.Send(c); err != nil {
-				plog.Debugf("failed to send watch control response to gRPC stream (%q)", err.Error())
+				if isClientCtxErr(sws.gRPCStream.Context().Err(), err) {
+					plog.Debugf("failed to send watch control response to gRPC stream (%q)", err.Error())
+				} else {
+					plog.Warningf("failed to send watch control response to gRPC stream (%q)", err.Error())
+				}
 				return
 			}
 
@@ -372,7 +384,11 @@ func (sws *serverWatchStream) sendLoop() {
 				for _, v := range pending[wid] {
 					mvcc.ReportEventReceived(len(v.Events))
 					if err := sws.gRPCStream.Send(v); err != nil {
-						plog.Debugf("failed to send pending watch response to gRPC stream (%q)", err.Error())
+						if isClientCtxErr(sws.gRPCStream.Context().Err(), err) {
+							plog.Debugf("failed to send pending watch response to gRPC stream (%q)", err.Error())
+						} else {
+							plog.Warningf("failed to send pending watch response to gRPC stream (%q)", err.Error())
+						}
 						return
 					}
 				}

integration/cluster.go

@@ -58,10 +58,12 @@ import (
 )
 
 const (
-	tickDuration   = 10 * time.Millisecond
-	clusterName    = "etcd"
-	requestTimeout = 20 * time.Second
+	// RequestWaitTimeout is the time duration to wait for a request to go through or detect leader loss.
+	RequestWaitTimeout = 3 * time.Second
+	tickDuration       = 10 * time.Millisecond
+	requestTimeout     = 20 * time.Second
 
+	clusterName  = "etcd"
 	basePort     = 21000
 	UrlScheme    = "unix"
 	UrlSchemeTLS = "unixs"

mvcc/backend/backend.go

@@ -373,10 +373,10 @@ func defragdb(odb, tmpdb *bolt.DB, limit int) error {
 		}
 
 		tmpb, berr := tmptx.CreateBucketIfNotExists(next)
-		tmpb.FillPercent = 0.9 // for seq write in for each
 		if berr != nil {
 			return berr
 		}
+		tmpb.FillPercent = 0.9 // for seq write in for each
 
 		b.ForEach(func(k, v []byte) error {
 			count++

pkg/expect/expect.go

@@ -33,7 +33,6 @@ type ExpectProcess struct {
 	fpty *os.File
 	wg   sync.WaitGroup
 
-	ptyMu sync.Mutex // protects accessing fpty
 	cond  *sync.Cond // for broadcasting updates are available
 	mu    sync.Mutex // protects lines and err
 	lines []string
@@ -76,9 +75,7 @@ func (ep *ExpectProcess) read() {
 	printDebugLines := os.Getenv("EXPECT_DEBUG") != ""
 	r := bufio.NewReader(ep.fpty)
 	for ep.err == nil {
-		ep.ptyMu.Lock()
 		l, rerr := r.ReadString('\n')
-		ep.ptyMu.Unlock()
 		ep.mu.Lock()
 		ep.err = rerr
 		if l != "" {
@@ -150,9 +147,7 @@ func (ep *ExpectProcess) close(kill bool) error {
 	}
 
 	err := ep.cmd.Wait()
-	ep.ptyMu.Lock()
 	ep.fpty.Close()
-	ep.ptyMu.Unlock()
 	ep.wg.Wait()
 
 	if err != nil {

test

@@ -133,6 +133,9 @@ function functional_pass {
 		-peer-ports 12380,22380,32380 \
 		-limit 1 \
 		-schedule-cases "0 1 2 3 4 5" \
+		-stress-qps 1000 \
+		-stress-key-txn-count 100 \
+		-stress-key-txn-ops 10 \
 		-exit-on-failure && echo "'etcd-tester' succeeded"
 	ETCD_TESTER_EXIT_CODE=$?
 	echo "ETCD_TESTER_EXIT_CODE:" ${ETCD_TESTER_EXIT_CODE}

tools/functional-tester/etcd-tester/key_stresser.go

@@ -34,9 +34,11 @@ import (
 type keyStresser struct {
 	Endpoint string
 
-	keyLargeSize   int
-	keySize        int
-	keySuffixRange int
+	keyLargeSize      int
+	keySize           int
+	keySuffixRange    int
+	keyTxnSuffixRange int
+	keyTxnOps         int
 
 	N int
 
@@ -77,6 +79,15 @@ func (s *keyStresser) Stress() error {
 		{weight: 0.07, f: newStressDelete(kvc, s.keySuffixRange)},
 		{weight: 0.07, f: newStressDeleteInterval(kvc, s.keySuffixRange)},
 	}
+	if s.keyTxnSuffixRange > 0 {
+		// adjust to make up ±70% of workloads with writes
+		stressEntries[0].weight = 0.24
+		stressEntries[1].weight = 0.24
+		stressEntries = append(stressEntries, stressEntry{
+			weight: 0.24,
+			f:      newStressTxn(kvc, s.keyTxnSuffixRange, s.keyTxnOps),
+		})
+	}
 	s.stressTable = createStressTable(stressEntries)
 
 	for i := 0; i < s.N; i++ {
@@ -202,6 +213,79 @@ func newStressPut(kvc pb.KVClient, keySuffixRange, keySize int) stressFunc {
 	}
 }
 
+func newStressTxn(kvc pb.KVClient, keyTxnSuffixRange, txnOps int) stressFunc {
+	keys := make([]string, keyTxnSuffixRange)
+	for i := range keys {
+		keys[i] = fmt.Sprintf("/k%03d", i)
+	}
+	return writeTxn(kvc, keys, txnOps)
+}
+
+func writeTxn(kvc pb.KVClient, keys []string, txnOps int) stressFunc {
+	return func(ctx context.Context) (error, int64) {
+		ks := make(map[string]struct{}, txnOps)
+		for len(ks) != txnOps {
+			ks[keys[rand.Intn(len(keys))]] = struct{}{}
+		}
+		selected := make([]string, 0, txnOps)
+		for k := range ks {
+			selected = append(selected, k)
+		}
+		com, delOp, putOp := getTxnReqs(selected[0], "bar00")
+		txnReq := &pb.TxnRequest{
+			Compare: []*pb.Compare{com},
+			Success: []*pb.RequestOp{delOp},
+			Failure: []*pb.RequestOp{putOp},
+		}
+
+		// add nested txns if any
+		for i := 1; i < txnOps; i++ {
+			k, v := selected[i], fmt.Sprintf("bar%02d", i)
+			com, delOp, putOp = getTxnReqs(k, v)
+			nested := &pb.RequestOp{
+				Request: &pb.RequestOp_RequestTxn{
+					RequestTxn: &pb.TxnRequest{
+						Compare: []*pb.Compare{com},
+						Success: []*pb.RequestOp{delOp},
+						Failure: []*pb.RequestOp{putOp},
+					},
+				},
+			}
+			txnReq.Success = append(txnReq.Success, nested)
+			txnReq.Failure = append(txnReq.Failure, nested)
+		}
+
+		_, err := kvc.Txn(ctx, txnReq, grpc.FailFast(false))
+		return err, int64(txnOps)
+	}
+}
+
+func getTxnReqs(key, val string) (com *pb.Compare, delOp *pb.RequestOp, putOp *pb.RequestOp) {
+	// if key exists (version > 0)
+	com = &pb.Compare{
+		Key:         []byte(key),
+		Target:      pb.Compare_VERSION,
+		Result:      pb.Compare_GREATER,
+		TargetUnion: &pb.Compare_Version{Version: 0},
+	}
+	delOp = &pb.RequestOp{
+		Request: &pb.RequestOp_RequestDeleteRange{
+			RequestDeleteRange: &pb.DeleteRangeRequest{
+				Key: []byte(key),
+			},
+		},
+	}
+	putOp = &pb.RequestOp{
+		Request: &pb.RequestOp_RequestPut{
+			RequestPut: &pb.PutRequest{
+				Key:   []byte(key),
+				Value: []byte(val),
+			},
+		},
+	}
+	return com, delOp, putOp
+}
+
 func newStressRange(kvc pb.KVClient, keySuffixRange int) stressFunc {
 	return func(ctx context.Context) (error, int64) {
 		_, err := kvc.Range(ctx, &pb.RangeRequest{

tools/functional-tester/etcd-tester/main.go

@@ -47,6 +47,8 @@ func main() {
 	stressKeyLargeSize := flag.Uint("stress-key-large-size", 32*1024+1, "the size of each large key written into etcd.")
 	stressKeySize := flag.Uint("stress-key-size", 100, "the size of each small key written into etcd.")
 	stressKeySuffixRange := flag.Uint("stress-key-count", 250000, "the count of key range written into etcd.")
+	stressKeyTxnSuffixRange := flag.Uint("stress-key-txn-count", 100, "the count of key range written into etcd txn (max 100).")
+	stressKeyTxnOps := flag.Uint("stress-key-txn-ops", 1, "number of operations per a transaction (max 64).")
 	limit := flag.Int("limit", -1, "the limit of rounds to run failure set (-1 to run without limits).")
 	exitOnFailure := flag.Bool("exit-on-failure", false, "exit tester on first failure")
 	stressQPS := flag.Int("stress-qps", 10000, "maximum number of stresser requests per second.")
@@ -120,15 +122,23 @@ func main() {
 	}
 
 	scfg := stressConfig{
-		rateLimiter:    rate.NewLimiter(rate.Limit(*stressQPS), *stressQPS),
-		keyLargeSize:   int(*stressKeyLargeSize),
-		keySize:        int(*stressKeySize),
-		keySuffixRange: int(*stressKeySuffixRange),
-		numLeases:      10,
-		keysPerLease:   10,
+		rateLimiter:       rate.NewLimiter(rate.Limit(*stressQPS), *stressQPS),
+		keyLargeSize:      int(*stressKeyLargeSize),
+		keySize:           int(*stressKeySize),
+		keySuffixRange:    int(*stressKeySuffixRange),
+		keyTxnSuffixRange: int(*stressKeyTxnSuffixRange),
+		keyTxnOps:         int(*stressKeyTxnOps),
+		numLeases:         10,
+		keysPerLease:      10,
 
 		etcdRunnerPath: *etcdRunnerPath,
 	}
+	if scfg.keyTxnSuffixRange > 100 {
+		plog.Fatalf("stress-key-txn-count is maximum 100, got %d", scfg.keyTxnSuffixRange)
+	}
+	if scfg.keyTxnOps > 64 {
+		plog.Fatalf("stress-key-txn-ops is maximum 64, got %d", scfg.keyTxnOps)
+	}
 
 	t := &tester{
 		failures:      schedule,

tools/functional-tester/etcd-tester/stresser.go

@@ -113,9 +113,11 @@ func (cs *compositeStresser) Checker() Checker {
 }
 
 type stressConfig struct {
-	keyLargeSize   int
-	keySize        int
-	keySuffixRange int
+	keyLargeSize      int
+	keySize           int
+	keySuffixRange    int
+	keyTxnSuffixRange int
+	keyTxnOps         int
 
 	numLeases    int
 	keysPerLease int
@@ -142,12 +144,14 @@ func NewStresser(s string, sc *stressConfig, m *member) Stresser {
 		// TODO: Too intensive stressers can panic etcd member with
 		// 'out of memory' error. Put rate limits in server side.
 		return &keyStresser{
-			Endpoint:       m.grpcAddr(),
-			keyLargeSize:   sc.keyLargeSize,
-			keySize:        sc.keySize,
-			keySuffixRange: sc.keySuffixRange,
-			N:              100,
-			rateLimiter:    sc.rateLimiter,
+			Endpoint:          m.grpcAddr(),
+			keyLargeSize:      sc.keyLargeSize,
+			keySize:           sc.keySize,
+			keySuffixRange:    sc.keySuffixRange,
+			keyTxnSuffixRange: sc.keyTxnSuffixRange,
+			keyTxnOps:         sc.keyTxnOps,
+			N:                 100,
+			rateLimiter:       sc.rateLimiter,
 		}
 	case "v2keys":
 		return &v2Stresser{

version/version.go

@@ -26,7 +26,7 @@ import (
 var (
 	// MinClusterVersion is the min cluster version this etcd binary is compatible with.
 	MinClusterVersion = "3.0.0"
-	Version           = "3.3.0-rc.1"
+	Version           = "3.3.0-rc.2"
 	APIVersion        = "unknown"
 
 	// Git SHA Value will be set during build