mirror of https://github.com/prometheus/prometheus
1251 lines
30 KiB
Go
1251 lines
30 KiB
Go
// Copyright 2016 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package promql
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import (
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"context"
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"errors"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/go-kit/kit/log"
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"github.com/prometheus/prometheus/pkg/labels"
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"github.com/prometheus/prometheus/storage"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func TestQueryConcurrency(t *testing.T) {
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maxConcurrency := 10
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dir, err := ioutil.TempDir("", "test_concurrency")
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testutil.Ok(t, err)
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defer os.RemoveAll(dir)
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queryTracker := NewActiveQueryTracker(dir, maxConcurrency, nil)
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: maxConcurrency,
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MaxSamples: 10,
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Timeout: 100 * time.Second,
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ActiveQueryTracker: queryTracker,
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}
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engine := NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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block := make(chan struct{})
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processing := make(chan struct{})
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f := func(context.Context) error {
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processing <- struct{}{}
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<-block
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return nil
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}
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for i := 0; i < opts.MaxConcurrent; i++ {
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q := engine.newTestQuery(f)
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go q.Exec(ctx)
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select {
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case <-processing:
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// Expected.
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case <-time.After(20 * time.Millisecond):
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t.Fatalf("Query within concurrency threshold not being executed")
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}
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}
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q := engine.newTestQuery(f)
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go q.Exec(ctx)
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select {
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case <-processing:
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t.Fatalf("Query above concurrency threshold being executed")
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case <-time.After(20 * time.Millisecond):
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// Expected.
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}
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// Terminate a running query.
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block <- struct{}{}
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select {
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case <-processing:
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// Expected.
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case <-time.After(20 * time.Millisecond):
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t.Fatalf("Query within concurrency threshold not being executed")
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}
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// Terminate remaining queries.
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for i := 0; i < opts.MaxConcurrent; i++ {
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block <- struct{}{}
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}
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}
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func TestQueryTimeout(t *testing.T) {
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: 20,
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MaxSamples: 10,
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Timeout: 5 * time.Millisecond,
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}
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engine := NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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query := engine.newTestQuery(func(ctx context.Context) error {
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time.Sleep(100 * time.Millisecond)
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return contextDone(ctx, "test statement execution")
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})
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res := query.Exec(ctx)
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testutil.NotOk(t, res.Err, "expected timeout error but got none")
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var e ErrQueryTimeout
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// TODO: when circleci-windows moves to go 1.13:
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// testutil.Assert(t, errors.As(res.Err, &e), "expected timeout error but got: %s", res.Err)
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testutil.Assert(t, strings.HasPrefix(res.Err.Error(), e.Error()), "expected timeout error but got: %s", res.Err)
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}
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const errQueryCanceled = ErrQueryCanceled("test statement execution")
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func TestQueryCancel(t *testing.T) {
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: 10,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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engine := NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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// Cancel a running query before it completes.
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block := make(chan struct{})
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processing := make(chan struct{})
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query1 := engine.newTestQuery(func(ctx context.Context) error {
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processing <- struct{}{}
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<-block
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return contextDone(ctx, "test statement execution")
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})
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var res *Result
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go func() {
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res = query1.Exec(ctx)
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processing <- struct{}{}
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}()
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<-processing
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query1.Cancel()
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block <- struct{}{}
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<-processing
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testutil.NotOk(t, res.Err, "expected cancellation error for query1 but got none")
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testutil.Equals(t, errQueryCanceled, res.Err)
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// Canceling a query before starting it must have no effect.
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query2 := engine.newTestQuery(func(ctx context.Context) error {
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return contextDone(ctx, "test statement execution")
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})
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query2.Cancel()
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res = query2.Exec(ctx)
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testutil.Ok(t, res.Err)
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}
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// errQuerier implements storage.Querier which always returns error.
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type errQuerier struct {
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err error
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}
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func (q *errQuerier) Select(*storage.SelectParams, ...*labels.Matcher) (storage.SeriesSet, storage.Warnings, error) {
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return errSeriesSet{err: q.err}, nil, q.err
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}
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func (*errQuerier) LabelValues(name string) ([]string, storage.Warnings, error) { return nil, nil, nil }
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func (*errQuerier) LabelNames() ([]string, storage.Warnings, error) { return nil, nil, nil }
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func (*errQuerier) Close() error { return nil }
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// errSeriesSet implements storage.SeriesSet which always returns error.
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type errSeriesSet struct {
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err error
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}
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func (errSeriesSet) Next() bool { return false }
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func (errSeriesSet) At() storage.Series { return nil }
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func (e errSeriesSet) Err() error { return e.err }
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func TestQueryError(t *testing.T) {
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: 10,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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engine := NewEngine(opts)
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errStorage := ErrStorage{errors.New("storage error")}
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queryable := storage.QueryableFunc(func(ctx context.Context, mint, maxt int64) (storage.Querier, error) {
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return &errQuerier{err: errStorage}, nil
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})
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ctx, cancelCtx := context.WithCancel(context.Background())
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defer cancelCtx()
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vectorQuery, err := engine.NewInstantQuery(queryable, "foo", time.Unix(1, 0))
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testutil.Ok(t, err)
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res := vectorQuery.Exec(ctx)
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testutil.NotOk(t, res.Err, "expected error on failed select but got none")
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testutil.Equals(t, errStorage, res.Err)
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matrixQuery, err := engine.NewInstantQuery(queryable, "foo[1m]", time.Unix(1, 0))
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testutil.Ok(t, err)
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res = matrixQuery.Exec(ctx)
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testutil.NotOk(t, res.Err, "expected error on failed select but got none")
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testutil.Equals(t, errStorage, res.Err)
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}
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// paramCheckerQuerier implements storage.Querier which checks the start and end times
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// in params.
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type paramCheckerQuerier struct {
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start int64
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end int64
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grouping []string
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by bool
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selRange int64
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function string
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t *testing.T
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}
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func (q *paramCheckerQuerier) Select(sp *storage.SelectParams, _ ...*labels.Matcher) (storage.SeriesSet, storage.Warnings, error) {
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testutil.Equals(q.t, q.start, sp.Start)
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testutil.Equals(q.t, q.end, sp.End)
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testutil.Equals(q.t, q.grouping, sp.Grouping)
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testutil.Equals(q.t, q.by, sp.By)
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testutil.Equals(q.t, q.selRange, sp.Range)
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testutil.Equals(q.t, q.function, sp.Func)
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return errSeriesSet{err: nil}, nil, nil
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}
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func (*paramCheckerQuerier) LabelValues(name string) ([]string, storage.Warnings, error) {
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return nil, nil, nil
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}
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func (*paramCheckerQuerier) LabelNames() ([]string, storage.Warnings, error) { return nil, nil, nil }
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func (*paramCheckerQuerier) Close() error { return nil }
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func TestParamsSetCorrectly(t *testing.T) {
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: 10,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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// Set the lookback to be smaller and reset at the end.
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currLookback := LookbackDelta
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LookbackDelta = 5 * time.Second
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defer func() {
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LookbackDelta = currLookback
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}()
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cases := []struct {
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query string
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// All times are in seconds.
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start int64
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end int64
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paramStart int64
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paramEnd int64
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paramGrouping []string
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paramBy bool
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paramRange int64
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paramFunc string
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}{{
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query: "foo",
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start: 10,
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paramStart: 5,
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paramEnd: 10,
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}, {
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query: "foo[2m]",
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start: 200,
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paramStart: 80, // 200 - 120
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paramEnd: 200,
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paramRange: 120000,
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}, {
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query: "foo[2m] offset 2m",
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start: 300,
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paramStart: 60,
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paramEnd: 180,
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paramRange: 120000,
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}, {
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query: "foo[2m:1s]",
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start: 300,
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paramStart: 175, // 300 - 120 - 5
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paramEnd: 300,
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}, {
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query: "count_over_time(foo[2m:1s])",
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start: 300,
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paramStart: 175, // 300 - 120 - 5
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paramEnd: 300,
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paramFunc: "count_over_time",
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}, {
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query: "count_over_time(foo[2m:1s] offset 10s)",
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start: 300,
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paramStart: 165, // 300 - 120 - 5 - 10
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paramEnd: 300,
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paramFunc: "count_over_time",
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}, {
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query: "count_over_time((foo offset 10s)[2m:1s] offset 10s)",
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start: 300,
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paramStart: 155, // 300 - 120 - 5 - 10 - 10
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paramEnd: 290,
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paramFunc: "count_over_time",
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}, {
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// Range queries now.
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query: "foo",
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start: 10,
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end: 20,
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paramStart: 5,
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paramEnd: 20,
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}, {
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query: "rate(foo[2m])",
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start: 200,
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end: 500,
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paramStart: 80, // 200 - 120
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paramEnd: 500,
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paramRange: 120000,
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paramFunc: "rate",
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}, {
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query: "rate(foo[2m] offset 2m)",
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start: 300,
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end: 500,
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paramStart: 60,
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paramEnd: 380,
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paramRange: 120000,
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paramFunc: "rate",
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}, {
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query: "rate(foo[2m:1s])",
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start: 300,
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end: 500,
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paramStart: 175, // 300 - 120 - 5
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paramEnd: 500,
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paramFunc: "rate",
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}, {
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query: "count_over_time(foo[2m:1s])",
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start: 300,
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end: 500,
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paramStart: 175, // 300 - 120 - 5
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paramEnd: 500,
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paramFunc: "count_over_time",
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}, {
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query: "count_over_time(foo[2m:1s] offset 10s)",
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start: 300,
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end: 500,
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paramStart: 165, // 300 - 120 - 5 - 10
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paramEnd: 500,
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paramFunc: "count_over_time",
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}, {
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query: "count_over_time((foo offset 10s)[2m:1s] offset 10s)",
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start: 300,
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end: 500,
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paramStart: 155, // 300 - 120 - 5 - 10 - 10
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paramEnd: 490,
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paramFunc: "count_over_time",
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}, {
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query: "sum by (dim1) (foo)",
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start: 10,
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paramStart: 5,
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paramEnd: 10,
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paramGrouping: []string{"dim1"},
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paramBy: true,
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paramFunc: "sum",
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}, {
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query: "sum without (dim1) (foo)",
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start: 10,
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paramStart: 5,
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paramEnd: 10,
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paramGrouping: []string{"dim1"},
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paramBy: false,
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paramFunc: "sum",
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}, {
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query: "sum by (dim1) (avg_over_time(foo[1s]))",
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start: 10,
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paramStart: 9,
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paramEnd: 10,
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paramGrouping: nil,
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paramBy: false,
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paramRange: 1000,
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paramFunc: "avg_over_time",
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}, {
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query: "sum by (dim1) (max by (dim2) (foo))",
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start: 10,
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paramStart: 5,
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paramEnd: 10,
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paramGrouping: []string{"dim2"},
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paramBy: true,
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paramFunc: "max",
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}, {
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query: "(max by (dim1) (foo))[5s:1s]",
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start: 10,
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paramStart: 0,
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paramEnd: 10,
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paramGrouping: []string{"dim1"},
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paramBy: true,
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paramFunc: "max",
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}}
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for _, tc := range cases {
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engine := NewEngine(opts)
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queryable := storage.QueryableFunc(func(ctx context.Context, mint, maxt int64) (storage.Querier, error) {
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return ¶mCheckerQuerier{start: tc.paramStart * 1000, end: tc.paramEnd * 1000, grouping: tc.paramGrouping, by: tc.paramBy, selRange: tc.paramRange, function: tc.paramFunc, t: t}, nil
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})
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var (
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query Query
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err error
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)
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if tc.end == 0 {
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query, err = engine.NewInstantQuery(queryable, tc.query, time.Unix(tc.start, 0))
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} else {
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query, err = engine.NewRangeQuery(queryable, tc.query, time.Unix(tc.start, 0), time.Unix(tc.end, 0), time.Second)
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}
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testutil.Ok(t, err)
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res := query.Exec(context.Background())
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testutil.Ok(t, res.Err)
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}
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}
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func TestEngineShutdown(t *testing.T) {
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opts := EngineOpts{
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Logger: nil,
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Reg: nil,
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MaxConcurrent: 10,
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MaxSamples: 10,
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Timeout: 10 * time.Second,
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}
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engine := NewEngine(opts)
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ctx, cancelCtx := context.WithCancel(context.Background())
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block := make(chan struct{})
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processing := make(chan struct{})
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// Shutdown engine on first handler execution. Should handler execution ever become
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// concurrent this test has to be adjusted accordingly.
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f := func(ctx context.Context) error {
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processing <- struct{}{}
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<-block
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return contextDone(ctx, "test statement execution")
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}
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query1 := engine.newTestQuery(f)
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// Stopping the engine must cancel the base context. While executing queries is
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// still possible, their context is canceled from the beginning and execution should
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// terminate immediately.
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var res *Result
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go func() {
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res = query1.Exec(ctx)
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processing <- struct{}{}
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}()
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<-processing
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cancelCtx()
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block <- struct{}{}
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<-processing
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testutil.NotOk(t, res.Err, "expected error on shutdown during query but got none")
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testutil.Equals(t, errQueryCanceled, res.Err)
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query2 := engine.newTestQuery(func(context.Context) error {
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t.Fatalf("reached query execution unexpectedly")
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return nil
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})
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|
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// The second query is started after the engine shut down. It must
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// be canceled immediately.
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res2 := query2.Exec(ctx)
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testutil.NotOk(t, res2.Err, "expected error on querying with canceled context but got none")
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|
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var e ErrQueryCanceled
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// TODO: when circleci-windows moves to go 1.13:
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// testutil.Assert(t, errors.As(res2.Err, &e), "expected cancellation error but got: %s", res2.Err)
|
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testutil.Assert(t, strings.HasPrefix(res2.Err.Error(), e.Error()), "expected cancellation error but got: %s", res2.Err)
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}
|
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|
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func TestEngineEvalStmtTimestamps(t *testing.T) {
|
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test, err := NewTest(t, `
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load 10s
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metric 1 2
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`)
|
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testutil.Ok(t, err)
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defer test.Close()
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|
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err = test.Run()
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testutil.Ok(t, err)
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|
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cases := []struct {
|
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Query string
|
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Result Value
|
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Start time.Time
|
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End time.Time
|
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Interval time.Duration
|
|
ShouldError bool
|
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}{
|
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// Instant queries.
|
|
{
|
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Query: "1",
|
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Result: Scalar{V: 1, T: 1000},
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Start: time.Unix(1, 0),
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},
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{
|
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Query: "metric",
|
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Result: Vector{
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Sample{Point: Point{V: 1, T: 1000},
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Metric: labels.FromStrings("__name__", "metric")},
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},
|
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Start: time.Unix(1, 0),
|
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},
|
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{
|
|
Query: "metric[20s]",
|
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Result: Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
// Range queries.
|
|
{
|
|
Query: "1",
|
|
Result: Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 1000}, {V: 1, T: 2000}},
|
|
Metric: labels.FromStrings()},
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
Result: Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 1000}, {V: 1, T: 2000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
Result: Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(10, 0),
|
|
Interval: 5 * time.Second,
|
|
},
|
|
{
|
|
Query: `count_values("wrong label!", metric)`,
|
|
ShouldError: true,
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
var err error
|
|
var qry Query
|
|
if c.Interval == 0 {
|
|
qry, err = test.QueryEngine().NewInstantQuery(test.Queryable(), c.Query, c.Start)
|
|
} else {
|
|
qry, err = test.QueryEngine().NewRangeQuery(test.Queryable(), c.Query, c.Start, c.End, c.Interval)
|
|
}
|
|
testutil.Ok(t, err)
|
|
|
|
res := qry.Exec(test.Context())
|
|
if c.ShouldError {
|
|
testutil.NotOk(t, res.Err, "expected error for the query %q", c.Query)
|
|
continue
|
|
}
|
|
|
|
testutil.Ok(t, res.Err)
|
|
testutil.Equals(t, c.Result, res.Value)
|
|
}
|
|
|
|
}
|
|
|
|
func TestMaxQuerySamples(t *testing.T) {
|
|
test, err := NewTest(t, `
|
|
load 10s
|
|
metric 1 2
|
|
`)
|
|
testutil.Ok(t, err)
|
|
defer test.Close()
|
|
|
|
err = test.Run()
|
|
testutil.Ok(t, err)
|
|
|
|
cases := []struct {
|
|
Query string
|
|
MaxSamples int
|
|
Result Result
|
|
Start time.Time
|
|
End time.Time
|
|
Interval time.Duration
|
|
}{
|
|
// Instant queries.
|
|
{
|
|
Query: "1",
|
|
MaxSamples: 1,
|
|
Result: Result{
|
|
nil,
|
|
Scalar{V: 1, T: 1000},
|
|
nil},
|
|
Start: time.Unix(1, 0),
|
|
},
|
|
{
|
|
Query: "1",
|
|
MaxSamples: 0,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(1, 0),
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 0,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(1, 0),
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 1,
|
|
Result: Result{
|
|
nil,
|
|
Vector{
|
|
Sample{Point: Point{V: 1, T: 1000},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(1, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s]",
|
|
MaxSamples: 2,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
{
|
|
Query: "rate(metric[20s])",
|
|
MaxSamples: 3,
|
|
Result: Result{
|
|
nil,
|
|
Vector{
|
|
Sample{
|
|
Point: Point{V: 0.1, T: 10000},
|
|
Metric: labels.Labels{},
|
|
},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s]",
|
|
MaxSamples: 3,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s]",
|
|
MaxSamples: 0,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
// Range queries.
|
|
{
|
|
Query: "1",
|
|
MaxSamples: 3,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 1000}, {V: 1, T: 2000}},
|
|
Metric: labels.FromStrings()},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "1",
|
|
MaxSamples: 0,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 3,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 1000}, {V: 1, T: 2000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 2,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(2, 0),
|
|
Interval: time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 3,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(10, 0),
|
|
Interval: 5 * time.Second,
|
|
},
|
|
{
|
|
Query: "metric",
|
|
MaxSamples: 2,
|
|
Result: Result{
|
|
ErrTooManySamples(env),
|
|
nil,
|
|
nil,
|
|
},
|
|
Start: time.Unix(0, 0),
|
|
End: time.Unix(10, 0),
|
|
Interval: 5 * time.Second,
|
|
},
|
|
}
|
|
|
|
engine := test.QueryEngine()
|
|
for _, c := range cases {
|
|
var err error
|
|
var qry Query
|
|
|
|
engine.maxSamplesPerQuery = c.MaxSamples
|
|
|
|
if c.Interval == 0 {
|
|
qry, err = engine.NewInstantQuery(test.Queryable(), c.Query, c.Start)
|
|
} else {
|
|
qry, err = engine.NewRangeQuery(test.Queryable(), c.Query, c.Start, c.End, c.Interval)
|
|
}
|
|
testutil.Ok(t, err)
|
|
|
|
res := qry.Exec(test.Context())
|
|
testutil.Equals(t, c.Result.Err, res.Err)
|
|
testutil.Equals(t, c.Result.Value, res.Value)
|
|
}
|
|
}
|
|
|
|
func TestRecoverEvaluatorRuntime(t *testing.T) {
|
|
ev := &evaluator{logger: log.NewNopLogger()}
|
|
|
|
var err error
|
|
defer ev.recover(&err)
|
|
|
|
// Cause a runtime panic.
|
|
var a []int
|
|
//nolint:govet
|
|
a[123] = 1
|
|
|
|
if err.Error() != "unexpected error" {
|
|
t.Fatalf("wrong error message: %q, expected %q", err, "unexpected error")
|
|
}
|
|
}
|
|
|
|
func TestRecoverEvaluatorError(t *testing.T) {
|
|
ev := &evaluator{logger: log.NewNopLogger()}
|
|
var err error
|
|
|
|
e := errors.New("custom error")
|
|
|
|
defer func() {
|
|
if err.Error() != e.Error() {
|
|
t.Fatalf("wrong error message: %q, expected %q", err, e)
|
|
}
|
|
}()
|
|
defer ev.recover(&err)
|
|
|
|
panic(e)
|
|
}
|
|
|
|
func TestSubquerySelector(t *testing.T) {
|
|
tests := []struct {
|
|
loadString string
|
|
cases []struct {
|
|
Query string
|
|
Result Result
|
|
Start time.Time
|
|
}
|
|
}{
|
|
{
|
|
loadString: `load 10s
|
|
metric 1 2`,
|
|
cases: []struct {
|
|
Query string
|
|
Result Result
|
|
Start time.Time
|
|
}{
|
|
{
|
|
Query: "metric[20s:10s]",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s]",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 2s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(12, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 6s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1, T: 0}, {V: 1, T: 5000}, {V: 2, T: 10000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(20, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 4s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 2, T: 15000}, {V: 2, T: 20000}, {V: 2, T: 25000}, {V: 2, T: 30000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(35, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 5s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 2, T: 10000}, {V: 2, T: 15000}, {V: 2, T: 20000}, {V: 2, T: 25000}, {V: 2, T: 30000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(35, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 6s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 2, T: 10000}, {V: 2, T: 15000}, {V: 2, T: 20000}, {V: 2, T: 25000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(35, 0),
|
|
},
|
|
{
|
|
Query: "metric[20s:5s] offset 7s",
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 2, T: 10000}, {V: 2, T: 15000}, {V: 2, T: 20000}, {V: 2, T: 25000}},
|
|
Metric: labels.FromStrings("__name__", "metric")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(35, 0),
|
|
},
|
|
},
|
|
},
|
|
{
|
|
loadString: `load 10s
|
|
http_requests{job="api-server", instance="0", group="production"} 0+10x1000 100+30x1000
|
|
http_requests{job="api-server", instance="1", group="production"} 0+20x1000 200+30x1000
|
|
http_requests{job="api-server", instance="0", group="canary"} 0+30x1000 300+80x1000
|
|
http_requests{job="api-server", instance="1", group="canary"} 0+40x2000`,
|
|
cases: []struct {
|
|
Query string
|
|
Result Result
|
|
Start time.Time
|
|
}{
|
|
{ // Normal selector.
|
|
Query: `http_requests{group=~"pro.*",instance="0"}[30s:10s]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 9990, T: 9990000}, {V: 10000, T: 10000000}, {V: 100, T: 10010000}, {V: 130, T: 10020000}},
|
|
Metric: labels.FromStrings("__name__", "http_requests", "job", "api-server", "instance", "0", "group", "production")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10020, 0),
|
|
},
|
|
{ // Default step.
|
|
Query: `http_requests{group=~"pro.*",instance="0"}[5m:]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 9840, T: 9840000}, {V: 9900, T: 9900000}, {V: 9960, T: 9960000}, {V: 130, T: 10020000}, {V: 310, T: 10080000}},
|
|
Metric: labels.FromStrings("__name__", "http_requests", "job", "api-server", "instance", "0", "group", "production")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10100, 0),
|
|
},
|
|
{ // Checking if high offset (>LookbackDelta) is being taken care of.
|
|
Query: `http_requests{group=~"pro.*",instance="0"}[5m:] offset 20m`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 8640, T: 8640000}, {V: 8700, T: 8700000}, {V: 8760, T: 8760000}, {V: 8820, T: 8820000}, {V: 8880, T: 8880000}},
|
|
Metric: labels.FromStrings("__name__", "http_requests", "job", "api-server", "instance", "0", "group", "production")},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(10100, 0),
|
|
},
|
|
{
|
|
Query: `rate(http_requests[1m])[15s:5s]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{
|
|
Series{
|
|
Points: []Point{{V: 3, T: 7985000}, {V: 3, T: 7990000}, {V: 3, T: 7995000}, {V: 3, T: 8000000}},
|
|
Metric: labels.FromStrings("job", "api-server", "instance", "0", "group", "canary"),
|
|
},
|
|
Series{
|
|
Points: []Point{{V: 4, T: 7985000}, {V: 4, T: 7990000}, {V: 4, T: 7995000}, {V: 4, T: 8000000}},
|
|
Metric: labels.FromStrings("job", "api-server", "instance", "1", "group", "canary"),
|
|
},
|
|
Series{
|
|
Points: []Point{{V: 1, T: 7985000}, {V: 1, T: 7990000}, {V: 1, T: 7995000}, {V: 1, T: 8000000}},
|
|
Metric: labels.FromStrings("job", "api-server", "instance", "0", "group", "production"),
|
|
},
|
|
Series{
|
|
Points: []Point{{V: 2, T: 7985000}, {V: 2, T: 7990000}, {V: 2, T: 7995000}, {V: 2, T: 8000000}},
|
|
Metric: labels.FromStrings("job", "api-server", "instance", "1", "group", "production"),
|
|
},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(8000, 0),
|
|
},
|
|
{
|
|
Query: `sum(http_requests{group=~"pro.*"})[30s:10s]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 270, T: 90000}, {V: 300, T: 100000}, {V: 330, T: 110000}, {V: 360, T: 120000}},
|
|
Metric: labels.Labels{}},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(120, 0),
|
|
},
|
|
{
|
|
Query: `sum(http_requests)[40s:10s]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 800, T: 80000}, {V: 900, T: 90000}, {V: 1000, T: 100000}, {V: 1100, T: 110000}, {V: 1200, T: 120000}},
|
|
Metric: labels.Labels{}},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(120, 0),
|
|
},
|
|
{
|
|
Query: `(sum(http_requests{group=~"p.*"})+sum(http_requests{group=~"c.*"}))[20s:5s]`,
|
|
Result: Result{
|
|
nil,
|
|
Matrix{Series{
|
|
Points: []Point{{V: 1000, T: 100000}, {V: 1000, T: 105000}, {V: 1100, T: 110000}, {V: 1100, T: 115000}, {V: 1200, T: 120000}},
|
|
Metric: labels.Labels{}},
|
|
},
|
|
nil,
|
|
},
|
|
Start: time.Unix(120, 0),
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
SetDefaultEvaluationInterval(1 * time.Minute)
|
|
for _, tst := range tests {
|
|
test, err := NewTest(t, tst.loadString)
|
|
testutil.Ok(t, err)
|
|
|
|
defer test.Close()
|
|
|
|
err = test.Run()
|
|
testutil.Ok(t, err)
|
|
|
|
engine := test.QueryEngine()
|
|
for _, c := range tst.cases {
|
|
var err error
|
|
var qry Query
|
|
|
|
qry, err = engine.NewInstantQuery(test.Queryable(), c.Query, c.Start)
|
|
testutil.Ok(t, err)
|
|
|
|
res := qry.Exec(test.Context())
|
|
testutil.Equals(t, c.Result.Err, res.Err)
|
|
testutil.Equals(t, c.Result.Value, res.Value)
|
|
}
|
|
}
|
|
}
|
|
|
|
type FakeQueryLogger struct {
|
|
closed bool
|
|
logs []interface{}
|
|
}
|
|
|
|
func NewFakeQueryLogger() *FakeQueryLogger {
|
|
return &FakeQueryLogger{
|
|
closed: false,
|
|
logs: make([]interface{}, 0),
|
|
}
|
|
}
|
|
|
|
func (f *FakeQueryLogger) Close() error {
|
|
f.closed = true
|
|
return nil
|
|
}
|
|
|
|
func (f *FakeQueryLogger) Log(l ...interface{}) error {
|
|
f.logs = append(f.logs, l...)
|
|
return nil
|
|
}
|
|
|
|
func TestQueryLogger_basic(t *testing.T) {
|
|
opts := EngineOpts{
|
|
Logger: nil,
|
|
Reg: nil,
|
|
MaxConcurrent: 10,
|
|
MaxSamples: 10,
|
|
Timeout: 10 * time.Second,
|
|
}
|
|
engine := NewEngine(opts)
|
|
|
|
queryExec := func() {
|
|
ctx, cancelCtx := context.WithCancel(context.Background())
|
|
defer cancelCtx()
|
|
query := engine.newTestQuery(func(ctx context.Context) error {
|
|
return contextDone(ctx, "test statement execution")
|
|
})
|
|
res := query.Exec(ctx)
|
|
testutil.Ok(t, res.Err)
|
|
}
|
|
|
|
// Query works without query log initalized.
|
|
queryExec()
|
|
|
|
f1 := NewFakeQueryLogger()
|
|
engine.SetQueryLogger(f1)
|
|
queryExec()
|
|
for i, field := range []interface{}{"params", map[string]interface{}{"query": "test statement"}} {
|
|
testutil.Equals(t, field, f1.logs[i])
|
|
}
|
|
|
|
l := len(f1.logs)
|
|
queryExec()
|
|
testutil.Equals(t, 2*l, len(f1.logs))
|
|
|
|
// Test that we close the query logger when unsetting it.
|
|
testutil.Assert(t, !f1.closed, "expected f1 to be open, got closed")
|
|
engine.SetQueryLogger(nil)
|
|
testutil.Assert(t, f1.closed, "expected f1 to be closed, got open")
|
|
queryExec()
|
|
|
|
// Test that we close the query logger when swapping.
|
|
f2 := NewFakeQueryLogger()
|
|
f3 := NewFakeQueryLogger()
|
|
engine.SetQueryLogger(f2)
|
|
testutil.Assert(t, !f2.closed, "expected f2 to be open, got closed")
|
|
queryExec()
|
|
engine.SetQueryLogger(f3)
|
|
testutil.Assert(t, f2.closed, "expected f2 to be closed, got open")
|
|
testutil.Assert(t, !f3.closed, "expected f3 to be open, got closed")
|
|
queryExec()
|
|
}
|
|
|
|
func TestQueryLogger_fields(t *testing.T) {
|
|
opts := EngineOpts{
|
|
Logger: nil,
|
|
Reg: nil,
|
|
MaxConcurrent: 10,
|
|
MaxSamples: 10,
|
|
Timeout: 10 * time.Second,
|
|
}
|
|
engine := NewEngine(opts)
|
|
|
|
f1 := NewFakeQueryLogger()
|
|
engine.SetQueryLogger(f1)
|
|
|
|
ctx, cancelCtx := context.WithCancel(context.Background())
|
|
ctx = NewOriginContext(ctx, map[string]interface{}{"foo": "bar"})
|
|
defer cancelCtx()
|
|
query := engine.newTestQuery(func(ctx context.Context) error {
|
|
return contextDone(ctx, "test statement execution")
|
|
})
|
|
|
|
res := query.Exec(ctx)
|
|
testutil.Ok(t, res.Err)
|
|
|
|
expected := []string{"foo", "bar"}
|
|
for i, field := range expected {
|
|
v := f1.logs[len(f1.logs)-len(expected)+i].(string)
|
|
testutil.Equals(t, field, v)
|
|
}
|
|
}
|
|
|
|
func TestQueryLogger_error(t *testing.T) {
|
|
opts := EngineOpts{
|
|
Logger: nil,
|
|
Reg: nil,
|
|
MaxConcurrent: 10,
|
|
MaxSamples: 10,
|
|
Timeout: 10 * time.Second,
|
|
}
|
|
engine := NewEngine(opts)
|
|
|
|
f1 := NewFakeQueryLogger()
|
|
engine.SetQueryLogger(f1)
|
|
|
|
ctx, cancelCtx := context.WithCancel(context.Background())
|
|
ctx = NewOriginContext(ctx, map[string]interface{}{"foo": "bar"})
|
|
defer cancelCtx()
|
|
testErr := errors.New("failure")
|
|
query := engine.newTestQuery(func(ctx context.Context) error {
|
|
return testErr
|
|
})
|
|
|
|
res := query.Exec(ctx)
|
|
testutil.NotOk(t, res.Err, "query should have failed")
|
|
|
|
for i, field := range []interface{}{"params", map[string]interface{}{"query": "test statement"}, "error", testErr} {
|
|
testutil.Equals(t, f1.logs[i], field)
|
|
}
|
|
}
|