Example #1
0
func (t *parallelTest) getClient(nodeIdx, clientIdx int) *gosql.DB {
	for len(t.clients[nodeIdx]) <= clientIdx {
		// Add a client.
		pgURL, cleanupFunc := sqlutils.PGUrl(t.T,
			t.cluster.Server(nodeIdx).ServingAddr(),
			security.RootUser,
			"TestParallel")
		db, err := gosql.Open("postgres", pgURL.String())
		if err != nil {
			t.Fatal(err)
		}
		sqlutils.MakeSQLRunner(t, db).Exec("SET DATABASE = test")
		t.cluster.Stopper().AddCloser(
			stop.CloserFn(func() {
				_ = db.Close()
				cleanupFunc()
			}))
		t.clients[nodeIdx] = append(t.clients[nodeIdx], db)
	}
	return t.clients[nodeIdx][clientIdx]
}
func TestManualReplication(t *testing.T) {
	defer leaktest.AfterTest(t)()

	tc := StartTestCluster(t, 3,
		base.TestClusterArgs{
			ReplicationMode: base.ReplicationManual,
			ServerArgs: base.TestServerArgs{
				UseDatabase: "t",
			},
		})
	defer tc.Stopper().Stop()

	s0 := sqlutils.MakeSQLRunner(t, tc.Conns[0])
	s1 := sqlutils.MakeSQLRunner(t, tc.Conns[1])
	s2 := sqlutils.MakeSQLRunner(t, tc.Conns[2])

	s0.Exec(`CREATE DATABASE t`)
	s0.Exec(`CREATE TABLE test (k INT PRIMARY KEY, v INT)`)
	s0.Exec(`INSERT INTO test VALUES (5, 1), (4, 2), (1, 2)`)

	if r := s1.Query(`SELECT * FROM test WHERE k = 5`); !r.Next() {
		t.Fatal("no rows")
	}

	s2.ExecRowsAffected(3, `DELETE FROM test`)

	// Split the table to a new range.
	kvDB := tc.Servers[0].DB()
	tableDesc := sqlbase.GetTableDescriptor(kvDB, "t", "test")

	tableStartKey := keys.MakeRowSentinelKey(keys.MakeTablePrefix(uint32(tableDesc.ID)))
	leftRangeDesc, tableRangeDesc, err := tc.SplitRange(tableStartKey)
	if err != nil {
		t.Fatal(err)
	}
	log.Infof(context.Background(), "After split got ranges: %+v and %+v.", leftRangeDesc, tableRangeDesc)
	if len(tableRangeDesc.Replicas) == 0 {
		t.Fatalf(
			"expected replica on node 1, got no replicas: %+v", tableRangeDesc.Replicas)
	}
	if tableRangeDesc.Replicas[0].NodeID != 1 {
		t.Fatalf(
			"expected replica on node 1, got replicas: %+v", tableRangeDesc.Replicas)
	}

	// Replicate the table's range to all the nodes.
	tableRangeDesc, err = tc.AddReplicas(
		tableRangeDesc.StartKey.AsRawKey(), tc.Target(1), tc.Target(2),
	)
	if err != nil {
		t.Fatal(err)
	}
	if len(tableRangeDesc.Replicas) != 3 {
		t.Fatalf("expected 3 replicas, got %+v", tableRangeDesc.Replicas)
	}
	for i := 0; i < 3; i++ {
		if _, ok := tableRangeDesc.GetReplicaDescriptor(
			tc.Servers[i].GetFirstStoreID()); !ok {
			t.Fatalf("expected replica on store %d, got %+v",
				tc.Servers[i].GetFirstStoreID(), tableRangeDesc.Replicas)
		}
	}

	// Transfer the lease to node 1.
	leaseHolder, err := tc.FindRangeLeaseHolder(
		tableRangeDesc,
		&ReplicationTarget{
			NodeID:  tc.Servers[0].GetNode().Descriptor.NodeID,
			StoreID: tc.Servers[0].GetFirstStoreID(),
		})
	if err != nil {
		t.Fatal(err)
	}
	if leaseHolder.StoreID != tc.Servers[0].GetFirstStoreID() {
		t.Fatalf("expected initial lease on server idx 0, but is on node: %+v",
			leaseHolder)
	}

	err = tc.TransferRangeLease(tableRangeDesc, tc.Target(1))
	if err != nil {
		t.Fatal(err)
	}

	// Check that the lease holder has changed. We'll use a bogus hint, which
	// shouldn't matter (other than ensuring that it's not this call that moves
	// the range holder, but that a holder already existed).
	leaseHolder, err = tc.FindRangeLeaseHolder(
		tableRangeDesc,
		&ReplicationTarget{
			NodeID:  tc.Servers[0].GetNode().Descriptor.NodeID,
			StoreID: tc.Servers[0].GetFirstStoreID(),
		})
	if err != nil {
		t.Fatal(err)
	}
	if leaseHolder.StoreID != tc.Servers[1].GetFirstStoreID() {
		t.Fatalf("expected lease on server idx 1 (node: %d store: %d), but is on node: %+v",
			tc.Servers[1].GetNode().Descriptor.NodeID,
			tc.Servers[1].GetFirstStoreID(),
			leaseHolder)
	}
}
Example #3
0
func (t *parallelTest) setup(spec *parTestSpec) {
	if spec.ClusterSize == 0 {
		spec.ClusterSize = 1
	}

	if testing.Verbose() || log.V(1) {
		log.Infof(t.ctx, "Cluster Size: %d", spec.ClusterSize)
	}

	args := base.TestClusterArgs{
		ServerArgs: base.TestServerArgs{
			MaxOffset: logicMaxOffset,
			Knobs: base.TestingKnobs{
				SQLExecutor: &sql.ExecutorTestingKnobs{
					WaitForGossipUpdate:   true,
					CheckStmtStringChange: true,
				},
			},
		},
	}
	t.cluster = serverutils.StartTestCluster(t, spec.ClusterSize, args)
	t.clients = make([][]*gosql.DB, spec.ClusterSize)
	for i := range t.clients {
		t.clients[i] = append(t.clients[i], t.cluster.ServerConn(i))
	}
	r0 := sqlutils.MakeSQLRunner(t, t.clients[0][0])

	if spec.RangeSplitSize != 0 {
		if testing.Verbose() || log.V(1) {
			log.Infof(t.ctx, "Setting range split size: %d", spec.RangeSplitSize)
		}
		zoneCfg := config.DefaultZoneConfig()
		zoneCfg.RangeMaxBytes = int64(spec.RangeSplitSize)
		zoneCfg.RangeMinBytes = zoneCfg.RangeMaxBytes / 2
		buf, err := protoutil.Marshal(&zoneCfg)
		if err != nil {
			t.Fatal(err)
		}
		objID := keys.RootNamespaceID
		r0.Exec(`UPDATE system.zones SET config = $2 WHERE id = $1`, objID, buf)
	}

	if testing.Verbose() || log.V(1) {
		log.Infof(t.ctx, "Creating database")
	}

	r0.Exec("CREATE DATABASE test")
	for i := range t.clients {
		sqlutils.MakeSQLRunner(t, t.clients[i][0]).Exec("SET DATABASE = test")
	}

	if spec.ClusterSize >= 3 {
		if testing.Verbose() || log.V(1) {
			log.Infof(t.ctx, "Waiting for full replication")
		}
		if err := t.cluster.WaitForFullReplication(); err != nil {
			t.Fatal(err)
		}
	}
	if testing.Verbose() || log.V(1) {
		log.Infof(t.ctx, "Test setup done")
	}
}
Example #4
0
func TestServer(t *testing.T) {
	defer leaktest.AfterTest(t)()

	s, sqlDB, kvDB := serverutils.StartServer(t, base.TestServerArgs{})
	defer s.Stopper().Stop()
	conn, err := s.RPCContext().GRPCDial(s.ServingAddr())
	if err != nil {
		t.Fatal(err)
	}

	r := sqlutils.MakeSQLRunner(t, sqlDB)

	r.Exec(`CREATE DATABASE test`)
	r.Exec(`CREATE TABLE test.t (a INT PRIMARY KEY, b INT)`)
	r.Exec(`INSERT INTO test.t VALUES (1, 10), (2, 20), (3, 30)`)

	td := sqlbase.GetTableDescriptor(kvDB, "test", "t")

	ts := TableReaderSpec{
		Table:         *td,
		IndexIdx:      0,
		Reverse:       false,
		Spans:         nil,
		Filter:        Expression{Expr: "$0 != 2"}, // a != 2
		OutputColumns: []uint32{0, 1},              // a
	}

	txn := client.NewTxn(context.Background(), *kvDB)

	req := &SetupFlowRequest{Txn: txn.Proto}
	req.Flow = FlowSpec{
		Processors: []ProcessorSpec{{
			Core: ProcessorCoreUnion{TableReader: &ts},
			Output: []OutputRouterSpec{{
				Type:    OutputRouterSpec_MIRROR,
				Streams: []StreamEndpointSpec{{Mailbox: &MailboxSpec{SimpleResponse: true}}},
			}},
		}},
	}

	distSQLClient := NewDistSQLClient(conn)
	stream, err := distSQLClient.RunSimpleFlow(context.Background(), req)
	if err != nil {
		t.Fatal(err)
	}
	var decoder StreamDecoder
	var rows sqlbase.EncDatumRows
	for {
		msg, err := stream.Recv()
		if err != nil {
			if err == io.EOF {
				break
			}
			t.Fatal(err)
		}
		err = decoder.AddMessage(msg)
		if err != nil {
			t.Fatal(err)
		}
		rows = testGetDecodedRows(t, &decoder, rows)
	}
	if done, trailerErr := decoder.IsDone(); !done {
		t.Fatal("stream not done")
	} else if trailerErr != nil {
		t.Fatal("error in the stream trailer:", trailerErr)
	}
	str := rows.String()
	expected := "[[1 10] [3 30]]"
	if str != expected {
		t.Errorf("invalid results: %s, expected %s'", str, expected)
	}
}