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)
}
if _, err := sqlDB.Exec(`
CREATE DATABASE test;
CREATE TABLE test.t (a INT PRIMARY KEY, b INT);
INSERT INTO test.t VALUES (1, 10), (2, 20), (3, 30);
`); err != nil {
t.Fatal(err)
}
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 := &SetupFlowsRequest{Txn: txn.Proto}
req.Flows = []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)
}
}
func TestOrderedSync(t *testing.T) {
v := [6]sqlbase.EncDatum{}
for i := range v {
v[i].SetDatum(sqlbase.ColumnType_INT, parser.NewDInt(parser.DInt(i)))
}
asc := encoding.Ascending
desc := encoding.Descending
testCases := []struct {
sources []sqlbase.EncDatumRows
ordering sqlbase.ColumnOrdering
expected sqlbase.EncDatumRows
}{
{
sources: []sqlbase.EncDatumRows{
{
{v[0], v[1], v[4]},
{v[0], v[1], v[2]},
{v[0], v[2], v[3]},
{v[1], v[1], v[3]},
},
{
{v[1], v[0], v[4]},
},
{
{v[0], v[0], v[0]},
{v[4], v[4], v[4]},
},
},
ordering: sqlbase.ColumnOrdering{
{ColIdx: 0, Direction: asc},
{ColIdx: 1, Direction: asc},
},
expected: sqlbase.EncDatumRows{
{v[0], v[0], v[0]},
{v[0], v[1], v[4]},
{v[0], v[1], v[2]},
{v[0], v[2], v[3]},
{v[1], v[0], v[4]},
{v[1], v[1], v[3]},
{v[4], v[4], v[4]},
},
},
{
sources: []sqlbase.EncDatumRows{
{},
{
{v[1], v[0], v[4]},
},
{
{v[3], v[4], v[1]},
{v[4], v[4], v[4]},
{v[3], v[2], v[0]},
},
{
{v[4], v[4], v[5]},
{v[3], v[3], v[0]},
{v[0], v[0], v[0]},
},
},
ordering: sqlbase.ColumnOrdering{
{ColIdx: 1, Direction: desc},
{ColIdx: 0, Direction: asc},
{ColIdx: 2, Direction: asc},
},
expected: sqlbase.EncDatumRows{
{v[3], v[4], v[1]},
{v[4], v[4], v[4]},
{v[4], v[4], v[5]},
{v[3], v[3], v[0]},
{v[3], v[2], v[0]},
{v[0], v[0], v[0]},
{v[1], v[0], v[4]},
},
},
}
for testIdx, c := range testCases {
var sources []RowSource
for _, srcRows := range c.sources {
rowBuf := &RowBuffer{rows: srcRows}
sources = append(sources, rowBuf)
}
src, err := makeOrderedSync(c.ordering, sources)
if err != nil {
t.Fatal(err)
}
var retRows sqlbase.EncDatumRows
for {
row, err := src.NextRow()
if err != nil {
t.Fatal(err)
}
if row == nil {
break
}
retRows = append(retRows, row)
}
expStr := c.expected.String()
retStr := retRows.String()
if expStr != retStr {
t.Errorf("invalid results for case %d; expected:\n %s\ngot:\n %s",
testIdx, expStr, retStr)
}
}
}
func TestClusterFlow(t *testing.T) {
defer leaktest.AfterTest(t)()
const numRows = 100
args := base.TestClusterArgs{ReplicationMode: base.ReplicationManual}
tc := serverutils.StartTestCluster(t, 3, args)
defer tc.Stopper().Stop()
sumDigitsFn := func(row int) parser.Datum {
sum := 0
for row > 0 {
sum += row % 10
row /= 10
}
return parser.NewDInt(parser.DInt(sum))
}
sqlutils.CreateTable(t, tc.ServerConn(0), "t",
"num INT PRIMARY KEY, digitsum INT, numstr STRING, INDEX s (digitsum)",
numRows,
sqlutils.ToRowFn(sqlutils.RowIdxFn, sumDigitsFn, sqlutils.RowEnglishFn))
kvDB := tc.Server(0).KVClient().(*client.DB)
desc := sqlbase.GetTableDescriptor(kvDB, "test", "t")
makeIndexSpan := func(start, end int) TableReaderSpan {
var span roachpb.Span
prefix := roachpb.Key(sqlbase.MakeIndexKeyPrefix(desc, desc.Indexes[0].ID))
span.Key = append(prefix, encoding.EncodeVarintAscending(nil, int64(start))...)
span.EndKey = append(span.EndKey, prefix...)
span.EndKey = append(span.EndKey, encoding.EncodeVarintAscending(nil, int64(end))...)
return TableReaderSpan{Span: span}
}
// Set up table readers on three hosts feeding data into a join reader on
// the third host. This is a basic test for the distributed flow
// infrastructure, including local and remote streams.
//
// Note that the ranges won't necessarily be local to the table readers, but
// that doesn't matter for the purposes of this test.
tr1 := TableReaderSpec{
Table: *desc,
IndexIdx: 1,
OutputColumns: []uint32{0, 1},
Spans: []TableReaderSpan{makeIndexSpan(0, 8)},
}
tr2 := TableReaderSpec{
Table: *desc,
IndexIdx: 1,
OutputColumns: []uint32{0, 1},
Spans: []TableReaderSpan{makeIndexSpan(8, 12)},
}
tr3 := TableReaderSpec{
Table: *desc,
IndexIdx: 1,
OutputColumns: []uint32{0, 1},
Spans: []TableReaderSpan{makeIndexSpan(12, 100)},
}
jr := JoinReaderSpec{
Table: *desc,
OutputColumns: []uint32{2},
}
txn := client.NewTxn(context.Background(), *kvDB)
fid := FlowID{uuid.MakeV4()}
req1 := &SetupFlowRequest{Txn: txn.Proto}
req1.Flow = FlowSpec{
FlowID: fid,
Processors: []ProcessorSpec{{
Core: ProcessorCoreUnion{TableReader: &tr1},
Output: []OutputRouterSpec{{
Type: OutputRouterSpec_MIRROR,
Streams: []StreamEndpointSpec{
{Mailbox: &MailboxSpec{StreamID: 0, TargetAddr: tc.Server(2).ServingAddr()}},
},
}},
}},
}
req2 := &SetupFlowRequest{Txn: txn.Proto}
req2.Flow = FlowSpec{
FlowID: fid,
Processors: []ProcessorSpec{{
Core: ProcessorCoreUnion{TableReader: &tr2},
Output: []OutputRouterSpec{{
Type: OutputRouterSpec_MIRROR,
Streams: []StreamEndpointSpec{
{Mailbox: &MailboxSpec{StreamID: 1, TargetAddr: tc.Server(2).ServingAddr()}},
},
}},
}},
}
req3 := &SetupFlowRequest{Txn: txn.Proto}
req3.Flow = FlowSpec{
FlowID: fid,
Processors: []ProcessorSpec{
{
Core: ProcessorCoreUnion{TableReader: &tr3},
Output: []OutputRouterSpec{{
Type: OutputRouterSpec_MIRROR,
Streams: []StreamEndpointSpec{
{LocalStreamID: LocalStreamID(0)},
},
}},
},
{
Input: []InputSyncSpec{{
Type: InputSyncSpec_ORDERED,
Ordering: Ordering{Columns: []Ordering_Column{{1, Ordering_Column_ASC}}},
Streams: []StreamEndpointSpec{
{Mailbox: &MailboxSpec{StreamID: 0}},
{Mailbox: &MailboxSpec{StreamID: 1}},
{LocalStreamID: LocalStreamID(0)},
},
}},
Core: ProcessorCoreUnion{JoinReader: &jr},
Output: []OutputRouterSpec{{
Type: OutputRouterSpec_MIRROR,
Streams: []StreamEndpointSpec{{Mailbox: &MailboxSpec{SimpleResponse: true}}},
}}},
},
}
var clients []DistSQLClient
for i := 0; i < 3; i++ {
s := tc.Server(i)
conn, err := s.RPCContext().GRPCDial(s.ServingAddr())
if err != nil {
t.Fatal(err)
}
clients = append(clients, NewDistSQLClient(conn))
}
ctx := context.Background()
if log.V(1) {
log.Infof(ctx, "Setting up flow on 0")
}
if resp, err := clients[0].SetupFlow(context.Background(), req1); err != nil {
t.Fatal(err)
} else if resp.Error != nil {
t.Fatal(resp.Error)
}
if log.V(1) {
log.Infof(ctx, "Setting up flow on 1")
}
if resp, err := clients[1].SetupFlow(context.Background(), req2); err != nil {
t.Fatal(err)
} else if resp.Error != nil {
t.Fatal(resp.Error)
}
if log.V(1) {
log.Infof(ctx, "Running flow on 2")
}
stream, err := clients[2].RunSimpleFlow(context.Background(), req3)
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)
}
// The result should be all the numbers in string form, ordered by the
// digit sum (and then by number).
var results []string
for sum := 1; sum <= 50; sum++ {
for i := 1; i <= numRows; i++ {
if int(*sumDigitsFn(i).(*parser.DInt)) == sum {
results = append(results, fmt.Sprintf("['%s']", sqlutils.IntToEnglish(i)))
}
}
}
expected := strings.Join(results, " ")
expected = "[" + expected + "]"
if rowStr := rows.String(); rowStr != expected {
t.Errorf("Result: %s\n Expected: %s\n", rowStr, expected)
}
}