// TestServerQueryStarvation tests a very specific scenario, wherein a single
// query request has more queries than the server's MaxWorkers count.
func TestServerQueryStarvation(t *testing.T) {
defer leaktest.AfterTest(t)()
workerCount := 20
s, _, _ := serverutils.StartServer(t, base.TestServerArgs{
TimeSeriesQueryWorkerMax: workerCount,
})
defer s.Stopper().Stop()
tsrv := s.(*server.TestServer)
seriesCount := workerCount * 2
if err := populateSeries(seriesCount, 10, tsrv.TsDB()); err != nil {
t.Fatal(err)
}
conn, err := tsrv.RPCContext().GRPCDial(tsrv.Cfg.Addr)
if err != nil {
t.Fatal(err)
}
client := tspb.NewTimeSeriesClient(conn)
queries := make([]tspb.Query, 0, seriesCount)
for i := 0; i < seriesCount; i++ {
queries = append(queries, tspb.Query{
Name: seriesName(i),
})
}
if _, err := client.Query(context.Background(), &tspb.TimeSeriesQueryRequest{
StartNanos: 0 * 1e9,
EndNanos: 500 * 1e9,
Queries: queries,
}); err != nil {
t.Fatal(err)
}
}
func BenchmarkServerQuery(b *testing.B) {
s, _, _ := serverutils.StartServer(b, base.TestServerArgs{})
defer s.Stopper().Stop()
tsrv := s.(*server.TestServer)
// Populate data for large number of time series.
seriesCount := 50
sourceCount := 10
if err := populateSeries(seriesCount, sourceCount, tsrv.TsDB()); err != nil {
b.Fatal(err)
}
conn, err := tsrv.RPCContext().GRPCDial(tsrv.Cfg.Addr)
if err != nil {
b.Fatal(err)
}
client := tspb.NewTimeSeriesClient(conn)
queries := make([]tspb.Query, 0, seriesCount)
for i := 0; i < seriesCount; i++ {
queries = append(queries, tspb.Query{
Name: fmt.Sprintf("metric.%d", i),
})
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
if _, err := client.Query(context.Background(), &tspb.TimeSeriesQueryRequest{
StartNanos: 0 * 1e9,
EndNanos: 500 * 1e9,
Queries: queries,
}); err != nil {
b.Fatal(err)
}
}
}
func TestServerQuery(t *testing.T) {
defer leaktest.AfterTest(t)()
s, _, _ := serverutils.StartServer(t, base.TestServerArgs{})
defer s.Stopper().Stop()
tsrv := s.(*server.TestServer)
// Populate data directly.
tsdb := tsrv.TsDB()
if err := tsdb.StoreData(context.TODO(), ts.Resolution10s, []tspb.TimeSeriesData{
{
Name: "test.metric",
Source: "source1",
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 400 * 1e9,
Value: 100.0,
},
{
TimestampNanos: 500 * 1e9,
Value: 200.0,
},
{
TimestampNanos: 520 * 1e9,
Value: 300.0,
},
},
},
{
Name: "test.metric",
Source: "source2",
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 400 * 1e9,
Value: 100.0,
},
{
TimestampNanos: 500 * 1e9,
Value: 200.0,
},
{
TimestampNanos: 510 * 1e9,
Value: 250.0,
},
{
TimestampNanos: 530 * 1e9,
Value: 350.0,
},
},
},
{
Name: "other.metric",
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 400 * 1e9,
Value: 100.0,
},
{
TimestampNanos: 500 * 1e9,
Value: 200.0,
},
{
TimestampNanos: 510 * 1e9,
Value: 250.0,
},
},
},
}); err != nil {
t.Fatal(err)
}
expectedResult := &tspb.TimeSeriesQueryResponse{
Results: []tspb.TimeSeriesQueryResponse_Result{
{
Query: tspb.Query{
Name: "test.metric",
Sources: []string{"source1", "source2"},
},
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 505 * 1e9,
Value: 400.0,
},
{
TimestampNanos: 515 * 1e9,
Value: 500.0,
},
{
TimestampNanos: 525 * 1e9,
Value: 600.0,
},
},
},
{
Query: tspb.Query{
Name: "other.metric",
Sources: []string{""},
},
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 505 * 1e9,
Value: 200.0,
},
{
TimestampNanos: 515 * 1e9,
Value: 250.0,
},
},
},
{
Query: tspb.Query{
Name: "test.metric",
Sources: []string{"source1", "source2"},
Downsampler: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
SourceAggregator: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
Derivative: tspb.TimeSeriesQueryDerivative_DERIVATIVE.Enum(),
},
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 505 * 1e9,
Value: 1.0,
},
{
TimestampNanos: 515 * 1e9,
Value: 5.0,
},
{
TimestampNanos: 525 * 1e9,
Value: 5.0,
},
},
},
},
}
conn, err := tsrv.RPCContext().GRPCDial(tsrv.Cfg.Addr)
if err != nil {
t.Fatal(err)
}
client := tspb.NewTimeSeriesClient(conn)
response, err := client.Query(context.Background(), &tspb.TimeSeriesQueryRequest{
StartNanos: 500 * 1e9,
EndNanos: 526 * 1e9,
Queries: []tspb.Query{
{
Name: "test.metric",
},
{
Name: "other.metric",
},
{
Name: "test.metric",
Downsampler: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
SourceAggregator: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
Derivative: tspb.TimeSeriesQueryDerivative_DERIVATIVE.Enum(),
},
},
})
if err != nil {
t.Fatal(err)
}
for _, r := range response.Results {
sort.Strings(r.Sources)
}
if !proto.Equal(response, expectedResult) {
t.Fatalf("actual response \n%v\n did not match expected response \n%v",
response, expectedResult)
}
// Test a query with downsampling enabled. The query is a sum of maximums.
expectedResult = &tspb.TimeSeriesQueryResponse{
Results: []tspb.TimeSeriesQueryResponse_Result{
{
Query: tspb.Query{
Name: "test.metric",
Sources: []string{"source1", "source2"},
Downsampler: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
},
Datapoints: []tspb.TimeSeriesDatapoint{
{
TimestampNanos: 250 * 1e9,
Value: 200.0,
},
{
TimestampNanos: 750 * 1e9,
Value: 650.0,
},
},
},
},
}
response, err = client.Query(context.Background(), &tspb.TimeSeriesQueryRequest{
StartNanos: 0,
EndNanos: 1000 * 1e9,
SampleNanos: 500 * 1e9,
Queries: []tspb.Query{
{
Name: "test.metric",
Downsampler: tspb.TimeSeriesQueryAggregator_MAX.Enum(),
},
},
})
if err != nil {
t.Fatal(err)
}
for _, r := range response.Results {
sort.Strings(r.Sources)
}
if !proto.Equal(response, expectedResult) {
t.Fatalf("actual response \n%v\n did not match expected response \n%v",
response, expectedResult)
}
}
