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query_test.go
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package launcher_test
import (
"bytes"
"context"
"errors"
"fmt"
"html/template"
"io"
"io/ioutil"
"math/rand"
nethttp "net/http"
"strings"
"sync"
"testing"
"time"
"github.com/influxdata/flux"
"github.com/influxdata/flux/csv"
"github.com/influxdata/flux/execute"
"github.com/influxdata/flux/execute/executetest"
"github.com/influxdata/flux/execute/table"
"github.com/influxdata/flux/lang"
"github.com/influxdata/flux/runtime"
"github.com/influxdata/flux/values"
"github.com/influxdata/influxdb/v2"
"github.com/influxdata/influxdb/v2/cmd/influxd/launcher"
phttp "github.com/influxdata/influxdb/v2/http"
"github.com/influxdata/influxdb/v2/kit/feature"
"github.com/influxdata/influxdb/v2/kit/prom"
"github.com/influxdata/influxdb/v2/mock"
"github.com/influxdata/influxdb/v2/query"
)
func TestLauncher_Write_Query_FieldKey(t *testing.T) {
be := launcher.RunTestLauncherOrFail(t, ctx, nil)
be.SetupOrFail(t)
defer be.ShutdownOrFail(t, ctx)
resp, err := nethttp.DefaultClient.Do(
be.MustNewHTTPRequest(
"POST",
fmt.Sprintf("/api/v2/write?org=%s&bucket=%s", be.Org.ID, be.Bucket.ID),
`cpu,region=west,server=a v0=1.2
cpu,region=west,server=b v0=33.2
cpu,region=east,server=b,area=z v1=100.0
disk,regions=north,server=b v1=101.2
mem,server=b value=45.2`))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := resp.Body.Close(); err != nil {
t.Error(err)
}
}()
if resp.StatusCode != 204 {
t.Fatal("failed call to write points")
}
rawQ := fmt.Sprintf(`from(bucket:"%s")
|> range(start:-1m)
|> filter(fn: (r) => r._measurement == "cpu" and (r._field == "v1" or r._field == "v0"))
|> group(columns:["_time", "_value"], mode:"except")
`, be.Bucket.Name)
// Expected keys:
//
// _measurement=cpu,region=west,server=a,_field=v0
// _measurement=cpu,region=west,server=b,_field=v0
// _measurement=cpu,region=east,server=b,area=z,_field=v1
//
results := be.MustExecuteQuery(rawQ)
defer results.Done()
results.First(t).HasTablesWithCols([]int{4, 4, 5})
}
// This test initialises a default launcher writes some data,
// and checks that the queried results contain the expected number of tables
// and expected number of columns.
func TestLauncher_WriteV2_Query(t *testing.T) {
be := launcher.RunTestLauncherOrFail(t, ctx, nil)
be.SetupOrFail(t)
defer be.ShutdownOrFail(t, ctx)
// The default gateway instance inserts some values directly such that ID lookups seem to break,
// so go the roundabout way to insert things correctly.
req := be.MustNewHTTPRequest(
"POST",
fmt.Sprintf("/api/v2/write?org=%s&bucket=%s", be.Org.ID, be.Bucket.ID),
fmt.Sprintf("ctr n=1i %d", time.Now().UnixNano()),
)
phttp.SetToken(be.Auth.Token, req)
resp, err := nethttp.DefaultClient.Do(req)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := resp.Body.Close(); err != nil {
t.Error(err)
}
}()
if resp.StatusCode != nethttp.StatusNoContent {
buf := new(bytes.Buffer)
if _, err := io.Copy(buf, resp.Body); err != nil {
t.Fatalf("Could not read body: %s", err)
}
t.Fatalf("exp status %d; got %d, body: %s", nethttp.StatusNoContent, resp.StatusCode, buf.String())
}
res := be.MustExecuteQuery(fmt.Sprintf(`from(bucket:"%s") |> range(start:-5m)`, be.Bucket.Name))
defer res.Done()
res.HasTableCount(t, 1)
}
func getMemoryUnused(t *testing.T, reg *prom.Registry) int64 {
t.Helper()
ms, err := reg.Gather()
if err != nil {
t.Fatal(err)
}
for _, m := range ms {
if m.GetName() == "query_control_memory_unused_bytes" {
return int64(*m.GetMetric()[0].Gauge.Value)
}
}
t.Errorf("query metric for unused memory not found")
return 0
}
//lint:ignore U1000 erroneously flagged by staticcheck since it is used in skipped tests
func checkMemoryUsed(t *testing.T, l *launcher.TestLauncher, concurrency, initial int) {
t.Helper()
got := l.QueryController().GetUsedMemoryBytes()
// base memory used is equal to initial memory bytes * concurrency.
if want := int64(concurrency * initial); want != got {
t.Errorf("expected used memory %d, got %d", want, got)
}
}
func writeBytes(t *testing.T, l *launcher.TestLauncher, tagValue string, bs int) int {
// When represented in Flux, every point is:
// 1 byte _measurement ("m")
// + 1 byte _field ("f")
// + 8 bytes _value
// + len(tagValue) bytes
// + 8 bytes _time
// + 8 bytes _start
// + 8 bytes _stop
// ---------------------------
// = 34 + len(tag) bytes
pointSize := 34 + len(tagValue)
if bs < pointSize {
bs = pointSize
}
n := bs / pointSize
if n*pointSize < bs {
n++
}
sb := strings.Builder{}
for i := 0; i < n; i++ {
sb.WriteString(fmt.Sprintf(`m,t=%s f=%di %d`, tagValue, i*100, time.Now().UnixNano()))
sb.WriteRune('\n')
}
l.WritePointsOrFail(t, sb.String())
return n * pointSize
}
type data struct {
Bucket string
TagValue string
Sleep string
verbose bool
}
type queryOption func(d *data)
func withTagValue(tv string) queryOption {
return func(d *data) {
d.TagValue = tv
}
}
func withSleep(s time.Duration) queryOption {
return func(d *data) {
d.Sleep = flux.ConvertDuration(s).String()
}
}
func queryPoints(ctx context.Context, t *testing.T, l *launcher.TestLauncher, opts ...queryOption) error {
d := &data{
Bucket: l.Bucket.Name,
}
for _, opt := range opts {
opt(d)
}
tmpls := `from(bucket: "{{ .Bucket }}")
|> range(start:-5m)
{{- if .TagValue }}
// this must be pushed down to avoid unnecessary memory allocations.
|> filter(fn: (r) => r.t == "{{ .TagValue }}")
{{- end}}
// ensure we load everything into memory.
|> sort(columns: ["_time"])
{{- if .Sleep }}
// now that you have everything in memory, you can sleep.
|> sleep(duration: {{ .Sleep }})
{{- end}}`
tmpl, err := template.New("test-query").Parse(tmpls)
if err != nil {
return err
}
bs := new(bytes.Buffer)
if err := tmpl.Execute(bs, d); err != nil {
return err
}
qs := bs.String()
if d.verbose {
t.Logf("query:\n%s", qs)
}
pkg, err := runtime.ParseToJSON(qs)
if err != nil {
t.Fatal(err)
}
req := &query.Request{
Authorization: l.Auth,
OrganizationID: l.Org.ID,
Compiler: lang.ASTCompiler{
AST: pkg,
},
}
return l.QueryAndNopConsume(ctx, req)
}
// This test:
// - initializes a default launcher and sets memory limits;
// - writes some data;
// - queries the data;
// - verifies that the query fails (or not) and that the memory was de-allocated.
func TestLauncher_QueryMemoryLimits(t *testing.T) {
tcs := []struct {
name string
args []string
err bool
querySizeBytes int
// max_memory - per_query_memory * concurrency
unusedMemoryBytes int
}{
{
name: "ok - initial memory bytes, memory bytes, and max memory set",
args: []string{
"--query-concurrency", "1",
"--query-initial-memory-bytes", "100",
"--query-max-memory-bytes", "1048576", // 1MB
},
querySizeBytes: 30000,
err: false,
unusedMemoryBytes: 1048476,
},
{
name: "error - memory bytes and max memory set",
args: []string{
"--query-concurrency", "1",
"--query-memory-bytes", "1",
"--query-max-memory-bytes", "100",
},
querySizeBytes: 2,
err: true,
unusedMemoryBytes: 99,
},
{
name: "error - initial memory bytes and max memory set",
args: []string{
"--query-concurrency", "1",
"--query-initial-memory-bytes", "1",
"--query-max-memory-bytes", "100",
},
querySizeBytes: 101,
err: true,
unusedMemoryBytes: 99,
},
{
name: "error - initial memory bytes, memory bytes, and max memory set",
args: []string{
"--query-concurrency", "1",
"--query-initial-memory-bytes", "1",
"--query-memory-bytes", "50",
"--query-max-memory-bytes", "100",
},
querySizeBytes: 51,
err: true,
unusedMemoryBytes: 99,
},
}
for _, tc := range tcs {
t.Run(tc.name, func(t *testing.T) {
l := launcher.RunTestLauncherOrFail(t, ctx, nil, tc.args...)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
const tagValue = "t0"
writeBytes(t, l, tagValue, tc.querySizeBytes)
if err := queryPoints(context.Background(), t, l, withTagValue(tagValue)); err != nil {
if tc.err {
if !strings.Contains(err.Error(), "allocation limit reached") {
t.Errorf("query errored with unexpected error: %v", err)
}
} else {
t.Errorf("unexpected error: %v", err)
}
} else if tc.err {
t.Errorf("expected error, got successful query execution")
}
reg := l.Registry()
got := getMemoryUnused(t, reg)
want := int64(tc.unusedMemoryBytes)
if want != got {
t.Errorf("expected unused memory %d, got %d", want, got)
}
})
}
}
// This test:
// - initializes a default launcher and sets memory limits;
// - writes some data;
// - launches a query that does not error;
// - launches a query that gets canceled while executing;
// - launches a query that does not error;
// - verifies after each query run the used memory.
func TestLauncher_QueryMemoryManager_ExceedMemory(t *testing.T) {
t.Skip("this test is flaky, occasionally get error: \"memory allocation limit reached\" on OK query")
l := launcher.RunTestLauncherOrFail(t, ctx, nil,
"--log-level", "error",
"--query-concurrency", "1",
"--query-initial-memory-bytes", "100",
"--query-memory-bytes", "50000",
"--query-max-memory-bytes", "200000",
)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
// One tag does not exceed memory.
const tOK = "t0"
writeBytes(t, l, tOK, 10000)
// The other does.
const tKO = "t1"
writeBytes(t, l, tKO, 50001)
if err := queryPoints(context.Background(), t, l, withTagValue(tOK)); err != nil {
t.Errorf("unexpected error: %v", err)
}
checkMemoryUsed(t, l, 1, 100)
if err := queryPoints(context.Background(), t, l, withTagValue(tKO)); err != nil {
if !strings.Contains(err.Error(), "allocation limit reached") {
t.Errorf("query errored with unexpected error: %v", err)
}
} else {
t.Errorf("unexpected error: %v", err)
}
checkMemoryUsed(t, l, 1, 100)
if err := queryPoints(context.Background(), t, l, withTagValue(tOK)); err != nil {
t.Errorf("unexpected error: %v", err)
}
checkMemoryUsed(t, l, 1, 100)
}
// This test:
// - initializes a default launcher and sets memory limits;
// - writes some data;
// - launches a query that does not error;
// - launches a query and cancels its context;
// - launches a query that does not error;
// - verifies after each query run the used memory.
func TestLauncher_QueryMemoryManager_ContextCanceled(t *testing.T) {
t.Skip("this test is flaky, occasionally get error: \"memory allocation limit reached\"")
l := launcher.RunTestLauncherOrFail(t, ctx, nil,
"--log-level", "error",
"--query-concurrency", "1",
"--query-initial-memory-bytes", "100",
"--query-memory-bytes", "50000",
"--query-max-memory-bytes", "200000",
)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
const tag = "t0"
writeBytes(t, l, tag, 10000)
if err := queryPoints(context.Background(), t, l, withTagValue(tag)); err != nil {
t.Errorf("unexpected error: %v", err)
}
checkMemoryUsed(t, l, 1, 100)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
if err := queryPoints(ctx, t, l, withSleep(4*time.Second)); err == nil {
t.Errorf("expected error got none")
}
checkMemoryUsed(t, l, 1, 100)
if err := queryPoints(context.Background(), t, l, withTagValue(tag)); err != nil {
t.Errorf("unexpected error: %v", err)
}
checkMemoryUsed(t, l, 1, 100)
}
// This test:
// - initializes a default launcher and sets memory limits;
// - writes some data;
// - launches (concurrently) a mixture of
// - OK queries;
// - queries that exceed the memory limit;
// - queries that get canceled;
// - verifies the used memory.
// Concurrency limit is set to 1, so only 1 query runs at a time and the others are queued.
// OK queries do not overcome the soft limit, so that they can run concurrently with the ones that exceed limits.
// The aim of this test is to verify that memory tracking works properly in the controller,
// even in the case of concurrent/queued queries.
func TestLauncher_QueryMemoryManager_ConcurrentQueries(t *testing.T) {
t.Skip("this test is flaky, occasionally get error: \"dial tcp 127.0.0.1:59654: connect: connection reset by peer\"")
l := launcher.RunTestLauncherOrFail(t, ctx, nil,
"--log-level", "error",
"--query-queue-size", "1024",
"--query-concurrency", "1",
"--query-initial-memory-bytes", "10000",
"--query-memory-bytes", "50000",
"--query-max-memory-bytes", "200000",
)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
// One tag does not exceed memory.
// The size is below the soft limit, so that querying this bucket never fail.
const tSmall = "t0"
writeBytes(t, l, tSmall, 9000)
// The other exceeds memory per query.
const tBig = "t1"
writeBytes(t, l, tBig, 100000)
const nOK = 100
const nMemExceeded = 100
const nContextCanceled = 100
nTotalQueries := nOK + nMemExceeded + nContextCanceled
// In order to increase the variety of the load, store and shuffle queries.
qs := make([]func(), 0, nTotalQueries)
// Flock of OK queries.
for i := 0; i < nOK; i++ {
qs = append(qs, func() {
if err := queryPoints(context.Background(), t, l, withTagValue(tSmall)); err != nil {
t.Errorf("unexpected error (ok-query %d): %v", i, err)
}
})
}
// Flock of big queries.
for i := 0; i < nMemExceeded; i++ {
qs = append(qs, func() {
if err := queryPoints(context.Background(), t, l, withTagValue(tBig)); err == nil {
t.Errorf("expected error got none (high-memory-query %d)", i)
} else if !strings.Contains(err.Error(), "allocation limit reached") {
t.Errorf("got wrong error (high-memory-query %d): %v", i, err)
}
})
}
// Flock of context canceled queries.
for i := 0; i < nContextCanceled; i++ {
qs = append(qs, func() {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
if err := queryPoints(ctx, t, l, withTagValue(tSmall), withSleep(4*time.Second)); err == nil {
t.Errorf("expected error got none (context-canceled-query %d)", i)
} else if !strings.Contains(err.Error(), "context") {
t.Errorf("got wrong error (context-canceled-query %d): %v", i, err)
}
})
}
rand.Shuffle(len(qs), func(i, j int) { qs[i], qs[j] = qs[j], qs[i] })
wg := sync.WaitGroup{}
wg.Add(nTotalQueries)
for i, q := range qs {
qs[i] = func() {
defer wg.Done()
q()
}
}
for _, q := range qs {
go q()
}
wg.Wait()
checkMemoryUsed(t, l, 1, 10000)
}
func TestLauncher_Query_LoadSecret_Success(t *testing.T) {
l := launcher.RunTestLauncherOrFail(t, ctx, nil)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
const key, value = "mytoken", "secrettoken"
if err := l.SecretService().PutSecret(ctx, l.Org.ID, key, value); err != nil {
t.Fatalf("unexpected error: %s", err)
}
// write one point so we can use it
l.WritePointsOrFail(t, fmt.Sprintf(`m,k=v1 f=%di %d`, 0, time.Now().UnixNano()))
// we expect this request to succeed
req := &query.Request{
Authorization: l.Auth,
OrganizationID: l.Org.ID,
Compiler: lang.FluxCompiler{
Query: fmt.Sprintf(`
import "influxdata/influxdb/secrets"
token = secrets.get(key: "mytoken")
from(bucket: "%s")
|> range(start: -5m)
|> set(key: "token", value: token)
`, l.Bucket.Name),
},
}
if err := l.QueryAndConsume(ctx, req, func(r flux.Result) error {
return r.Tables().Do(func(tbl flux.Table) error {
return tbl.Do(func(cr flux.ColReader) error {
j := execute.ColIdx("token", cr.Cols())
if j == -1 {
return errors.New("cannot find table column \"token\"")
}
for i := 0; i < cr.Len(); i++ {
v := execute.ValueForRow(cr, i, j)
if got, want := v, values.NewString("secrettoken"); !got.Equal(want) {
t.Errorf("unexpected value at row %d -want/+got:\n\t- %v\n\t+ %v", i, got, want)
}
}
return nil
})
})
}); err != nil {
t.Fatalf("unexpected error: %s", err)
}
}
func TestLauncher_Query_LoadSecret_Forbidden(t *testing.T) {
l := launcher.RunTestLauncherOrFail(t, ctx, nil)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
const key, value = "mytoken", "secrettoken"
if err := l.SecretService().PutSecret(ctx, l.Org.ID, key, value); err != nil {
t.Fatalf("unexpected error: %s", err)
}
// write one point so we can use it
l.WritePointsOrFail(t, fmt.Sprintf(`m,k=v1 f=%di %d`, 0, time.Now().UnixNano()))
auth := &influxdb.Authorization{
OrgID: l.Org.ID,
UserID: l.User.ID,
Permissions: []influxdb.Permission{
{
Action: influxdb.ReadAction,
Resource: influxdb.Resource{
Type: influxdb.BucketsResourceType,
ID: &l.Bucket.ID,
OrgID: &l.Org.ID,
},
},
},
}
if err := l.AuthorizationService(t).CreateAuthorization(ctx, auth); err != nil {
t.Fatalf("unexpected error creating authorization: %s", err)
}
l.Auth = auth
// we expect this request to succeed
req := &query.Request{
Authorization: l.Auth,
OrganizationID: l.Org.ID,
Compiler: lang.FluxCompiler{
Query: fmt.Sprintf(`
import "influxdata/influxdb/secrets"
token = secrets.get(key: "mytoken")
from(bucket: "%s")
|> range(start: -5m)
|> set(key: "token", value: token)
`, l.Bucket.Name),
},
}
if err := l.QueryAndNopConsume(ctx, req); err == nil {
t.Error("expected error")
} else if got, want := influxdb.ErrorCode(err), influxdb.EUnauthorized; got != want {
t.Errorf("unexpected error code -want/+got:\n\t- %v\n\t+ %v", got, want)
}
}
// We need a separate test for dynamic queries because our Flux e2e tests cannot test them now.
// Indeed, tableFind would fail while initializing the data in the input bucket, because the data is not
// written, and tableFind would complain not finding the tables.
// This will change once we make side effects drive execution and remove from/to concurrency in our e2e tests.
// See https://github.com/influxdata/flux/issues/1799.
func TestLauncher_DynamicQuery(t *testing.T) {
l := launcher.RunTestLauncherOrFail(t, ctx, nil)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
l.WritePointsOrFail(t, `
m0,k=k0 f=0i 0
m0,k=k0 f=1i 1
m0,k=k0 f=2i 2
m0,k=k0 f=3i 3
m0,k=k0 f=4i 4
m0,k=k1 f=5i 5
m0,k=k1 f=6i 6
m1,k=k0 f=5i 7
m1,k=k2 f=0i 8
m1,k=k0 f=6i 9
m1,k=k1 f=6i 10
m1,k=k0 f=7i 11
m1,k=k0 f=5i 12
m1,k=k1 f=8i 13
m1,k=k2 f=9i 14
m1,k=k3 f=5i 15`)
// How many points do we have in stream2 with the same values of the ones in the table with key k0 in stream1?
// The only point matching the description is `m1,k=k2 f=0i 8`, because its value is in the set [0, 1, 2, 3, 4].
dq := fmt.Sprintf(`
stream1 = from(bucket: "%s") |> range(start: 0) |> filter(fn: (r) => r._measurement == "m0" and r._field == "f")
stream2 = from(bucket: "%s") |> range(start: 0) |> filter(fn: (r) => r._measurement == "m1" and r._field == "f")
col = stream1 |> tableFind(fn: (key) => key.k == "k0") |> getColumn(column: "_value")
// Here is where dynamicity kicks in.
stream2 |> filter(fn: (r) => contains(value: r._value, set: col)) |> group() |> count() |> yield(name: "dynamic")`,
l.Bucket.Name, l.Bucket.Name)
req := &query.Request{
Authorization: l.Auth,
OrganizationID: l.Org.ID,
Compiler: lang.FluxCompiler{Query: dq},
}
noRes := 0
if err := l.QueryAndConsume(ctx, req, func(r flux.Result) error {
noRes++
if n := r.Name(); n != "dynamic" {
t.Fatalf("got unexpected result: %s", n)
}
noTables := 0
if err := r.Tables().Do(func(tbl flux.Table) error {
return tbl.Do(func(cr flux.ColReader) error {
noTables++
j := execute.ColIdx("_value", cr.Cols())
if j == -1 {
return errors.New("cannot find table column \"_value\"")
}
if want := 1; cr.Len() != want {
t.Fatalf("wrong number of rows in table: -want/+got:\n\t- %d\n\t+ %d", want, cr.Len())
}
v := execute.ValueForRow(cr, 0, j)
if got, want := v, values.NewInt(1); !got.Equal(want) {
t.Errorf("unexpected value at row %d -want/+got:\n\t- %v\n\t+ %v", 0, want, got)
}
return nil
})
}); err != nil {
return err
}
if want := 1; noTables != want {
t.Fatalf("wrong number of tables in result: -want/+got:\n\t- %d\n\t+ %d", want, noRes)
}
return nil
}); err != nil {
t.Fatalf("unexpected error: %s", err)
}
if want := 1; noRes != want {
t.Fatalf("wrong number of results: -want/+got:\n\t- %d\n\t+ %d", want, noRes)
}
}
func TestLauncher_Query_ExperimentalTo(t *testing.T) {
l := launcher.RunTestLauncherOrFail(t, ctx, nil)
l.SetupOrFail(t)
defer l.ShutdownOrFail(t, ctx)
// Last row of data tests nil field value
data := `
#datatype,string,long,dateTime:RFC3339,double,string,string,string,string
#group,false,false,false,false,true,true,true,true
#default,_result,,,,,,,
,result,table,_time,_value,_field,_measurement,cpu,host
,,0,2018-05-22T19:53:26Z,1.0,usage_guest,cpu,cpu-total,host.local
,,0,2018-05-22T19:53:36Z,1.1,usage_guest,cpu,cpu-total,host.local
,,1,2018-05-22T19:53:26Z,2.0,usage_guest_nice,cpu,cpu-total,host.local
,,1,2018-05-22T19:53:36Z,2.1,usage_guest_nice,cpu,cpu-total,host.local
,,2,2018-05-22T19:53:26Z,91.7364670583823,usage_idle,cpu,cpu-total,host.local
,,2,2018-05-22T19:53:36Z,89.51118889861233,usage_idle,cpu,cpu-total,host.local
,,3,2018-05-22T19:53:26Z,3.0,usage_iowait,cpu,cpu-total,host.local
,,3,2018-05-22T19:53:36Z,,usage_iowait,cpu,cpu-total,host.local
`
pivotQuery := fmt.Sprintf(`
import "csv"
import "experimental"
import "influxdata/influxdb/v1"
csv.from(csv: "%s")
|> range(start: 2018-05-21T00:00:00Z, stop: 2018-05-23T00:00:00Z)
|> v1.fieldsAsCols()
`, data)
res := l.MustExecuteQuery(pivotQuery)
defer res.Done()
pivotedResultIterator := flux.NewSliceResultIterator(res.Results)
toQuery := pivotQuery + fmt.Sprintf(`|> experimental.to(bucket: "%s", org: "%s") |> yield(name: "_result")`,
l.Bucket.Name, l.Org.Name)
res = l.MustExecuteQuery(toQuery)
defer res.Done()
toOutputResultIterator := flux.NewSliceResultIterator(res.Results)
// Make sure that experimental.to() echoes its input to its output
if err := executetest.EqualResultIterators(pivotedResultIterator, toOutputResultIterator); err != nil {
t.Fatal(err)
}
csvQuery := fmt.Sprintf(`
import "csv"
csv.from(csv: "%s")
|> filter(fn: (r) => exists r._value)
`,
data)
res = l.MustExecuteQuery(csvQuery)
defer res.Done()
csvResultIterator := flux.NewSliceResultIterator(res.Results)
fromQuery := fmt.Sprintf(`
from(bucket: "%s")
|> range(start: 2018-05-15T00:00:00Z, stop: 2018-06-01T00:00:00Z)
|> drop(columns: ["_start", "_stop"])
`,
l.Bucket.Name)
res = l.MustExecuteQuery(fromQuery)
defer res.Done()
fromResultIterator := flux.NewSliceResultIterator(res.Results)
// Make sure that the data we stored matches the CSV
if err := executetest.EqualResultIterators(csvResultIterator, fromResultIterator); err != nil {
t.Fatal(err)
}
}
func TestQueryPushDowns(t *testing.T) {
testcases := []struct {
name string
data []string
query string
op string
want string
}{
{
name: "range last single point start time",
data: []string{
"m,tag=a f=1i 1",
},
query: `
from(bucket: v.bucket)
|> range(start: 1970-01-01T00:00:00.000000001Z, stop: 1970-01-01T01:00:00Z)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,tag
,,0,1970-01-01T00:00:00.000000001Z,1970-01-01T01:00:00Z,1970-01-01T00:00:00.000000001Z,1,f,m,a
`,
},
{
name: "window last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",
"m0,k=k0 f=5i 15000000000",
},
query: `
from(bucket: v.bucket)
|> range(start: 1970-01-01T00:00:05Z, stop: 1970-01-01T00:00:20Z)
|> window(every: 3s)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,k
,,0,1970-01-01T00:00:05Z,1970-01-01T00:00:06Z,1970-01-01T00:00:05Z,5,f,m0,k0
,,1,1970-01-01T00:00:06Z,1970-01-01T00:00:09Z,1970-01-01T00:00:08Z,0,f,m0,k0
,,2,1970-01-01T00:00:09Z,1970-01-01T00:00:12Z,1970-01-01T00:00:11Z,7,f,m0,k0
,,3,1970-01-01T00:00:12Z,1970-01-01T00:00:15Z,1970-01-01T00:00:14Z,9,f,m0,k0
,,4,1970-01-01T00:00:15Z,1970-01-01T00:00:18Z,1970-01-01T00:00:15Z,5,f,m0,k0
`,
},
{
name: "window offset last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",
"m0,k=k0 f=5i 15000000000",
},
query: `
from(bucket: v.bucket)
|> range(start: 1970-01-01T00:00:05Z, stop: 1970-01-01T00:00:20Z)
|> window(every: 3s, offset: 2s)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,k
,,0,1970-01-01T00:00:05Z,1970-01-01T00:00:08Z,1970-01-01T00:00:07Z,5,f,m0,k0
,,1,1970-01-01T00:00:08Z,1970-01-01T00:00:11Z,1970-01-01T00:00:10Z,6,f,m0,k0
,,2,1970-01-01T00:00:11Z,1970-01-01T00:00:14Z,1970-01-01T00:00:13Z,8,f,m0,k0
,,3,1970-01-01T00:00:14Z,1970-01-01T00:00:17Z,1970-01-01T00:00:15Z,5,f,m0,k0
`,
},
{
name: "bare last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",
"m0,k=k0 f=5i 15000000000",
},
query: `
from(bucket: v.bucket)
|> range(start: 1970-01-01T00:00:05Z, stop: 1970-01-01T00:00:20Z)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,k
,,0,1970-01-01T00:00:05Z,1970-01-01T00:00:20Z,1970-01-01T00:00:15Z,5,f,m0,k0
`,
},
{
name: "window empty last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",
"m0,k=k0 f=5i 15000000000",
},
query: `
from(bucket: v.bucket)
|> range(start: 1969-12-31T23:00:00Z, stop: 1970-01-01T02:00:00Z)
|> window(every: 1h, createEmpty: true)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,0,1969-12-31T23:00:00Z,1970-01-01T00:00:00Z,,,f,m0,k0
,result,table,_start,_stop,_time,_value,_field,_measurement,k
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,k
,,1,1970-01-01T00:00:00Z,1970-01-01T01:00:00Z,1970-01-01T00:00:15Z,5,f,m0,k0
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,2,1970-01-01T01:00:00Z,1970-01-01T02:00:00Z,,,f,m0,k0
,result,table,_start,_stop,_time,_value,_field,_measurement,k
`,
},
{
name: "window empty offset last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",
"m0,k=k0 f=5i 15000000000",
},
query: `
from(bucket: v.bucket)
|> range(start: 1969-12-31T23:00:00Z, stop: 1970-01-01T02:00:00Z)
|> window(every: 1h, offset: 1h, createEmpty: true)
|> last()
`,
op: "readWindow(last)",
want: `
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,0,1969-12-31T23:00:00Z,1970-01-01T00:00:00Z,,,f,m0,k0
,result,table,_start,_stop,_time,_value,_field,_measurement,k
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,,,,,,,,
,result,table,_start,_stop,_time,_value,_field,_measurement,k
,,1,1970-01-01T00:00:00Z,1970-01-01T01:00:00Z,1970-01-01T00:00:15Z,5,f,m0,k0
#datatype,string,long,dateTime:RFC3339,dateTime:RFC3339,dateTime:RFC3339,long,string,string,string
#group,false,false,true,true,false,false,true,true,true
#default,_result,2,1970-01-01T01:00:00Z,1970-01-01T02:00:00Z,,,f,m0,k0
,result,table,_start,_stop,_time,_value,_field,_measurement,k
`,
},
{
name: "window aggregate last",
data: []string{
"m0,k=k0 f=0i 0",
"m0,k=k0 f=1i 1000000000",
"m0,k=k0 f=2i 2000000000",
"m0,k=k0 f=3i 3000000000",
"m0,k=k0 f=4i 4000000000",
"m0,k=k0 f=5i 5000000000",
"m0,k=k0 f=6i 6000000000",
"m0,k=k0 f=5i 7000000000",
"m0,k=k0 f=0i 8000000000",
"m0,k=k0 f=6i 9000000000",
"m0,k=k0 f=6i 10000000000",
"m0,k=k0 f=7i 11000000000",
"m0,k=k0 f=5i 12000000000",
"m0,k=k0 f=8i 13000000000",
"m0,k=k0 f=9i 14000000000",