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1340 lines
33 KiB
1340 lines
33 KiB
// Copyright 2017 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 tsdb
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import (
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"fmt"
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"io/ioutil"
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"math"
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"math/rand"
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"os"
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"path"
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"path/filepath"
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"sort"
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"testing"
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"time"
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"github.com/oklog/ulid"
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"github.com/pkg/errors"
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"github.com/prometheus/tsdb/chunks"
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"github.com/prometheus/tsdb/index"
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"github.com/prometheus/tsdb/labels"
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"github.com/prometheus/tsdb/testutil"
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"github.com/prometheus/tsdb/wal"
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)
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func openTestDB(t testing.TB, opts *Options) (db *DB, close func()) {
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tmpdir, err := ioutil.TempDir("", "test")
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testutil.Ok(t, err)
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db, err = Open(tmpdir, nil, nil, opts)
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testutil.Ok(t, err)
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// Do not close the test database by default as it will deadlock on test failures.
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return db, func() { os.RemoveAll(tmpdir) }
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}
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// query runs a matcher query against the querier and fully expands its data.
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func query(t testing.TB, q Querier, matchers ...labels.Matcher) map[string][]sample {
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ss, err := q.Select(matchers...)
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testutil.Ok(t, err)
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result := map[string][]sample{}
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for ss.Next() {
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series := ss.At()
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samples := []sample{}
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it := series.Iterator()
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for it.Next() {
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t, v := it.At()
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samples = append(samples, sample{t: t, v: v})
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}
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testutil.Ok(t, it.Err())
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name := series.Labels().String()
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result[name] = samples
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}
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testutil.Ok(t, ss.Err())
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return result
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}
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// Ensure that blocks are held in memory in their time order
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// and not in ULID order as they are read from the directory.
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func TestDB_reloadOrder(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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metas := []*BlockMeta{
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{ULID: ulid.MustNew(100, nil), MinTime: 90, MaxTime: 100},
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{ULID: ulid.MustNew(200, nil), MinTime: 70, MaxTime: 80},
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{ULID: ulid.MustNew(300, nil), MinTime: 100, MaxTime: 110},
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}
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for _, m := range metas {
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bdir := filepath.Join(db.Dir(), m.ULID.String())
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createEmptyBlock(t, bdir, m)
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}
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testutil.Ok(t, db.reload())
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blocks := db.Blocks()
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testutil.Equals(t, 3, len(blocks))
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testutil.Equals(t, *metas[1], blocks[0].Meta())
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testutil.Equals(t, *metas[0], blocks[1].Meta())
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testutil.Equals(t, *metas[2], blocks[2].Meta())
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}
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func TestDataAvailableOnlyAfterCommit(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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_, err := app.Add(labels.FromStrings("foo", "bar"), 0, 0)
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testutil.Ok(t, err)
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querier, err := db.Querier(0, 1)
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testutil.Ok(t, err)
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seriesSet := query(t, querier, labels.NewEqualMatcher("foo", "bar"))
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testutil.Equals(t, map[string][]sample{}, seriesSet)
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testutil.Ok(t, querier.Close())
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err = app.Commit()
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testutil.Ok(t, err)
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querier, err = db.Querier(0, 1)
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testutil.Ok(t, err)
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defer querier.Close()
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seriesSet = query(t, querier, labels.NewEqualMatcher("foo", "bar"))
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testutil.Equals(t, map[string][]sample{`{foo="bar"}`: {{t: 0, v: 0}}}, seriesSet)
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}
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func TestDataNotAvailableAfterRollback(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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_, err := app.Add(labels.FromStrings("foo", "bar"), 0, 0)
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testutil.Ok(t, err)
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err = app.Rollback()
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testutil.Ok(t, err)
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querier, err := db.Querier(0, 1)
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testutil.Ok(t, err)
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defer querier.Close()
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seriesSet := query(t, querier, labels.NewEqualMatcher("foo", "bar"))
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testutil.Equals(t, map[string][]sample{}, seriesSet)
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}
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func TestDBAppenderAddRef(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app1 := db.Appender()
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ref1, err := app1.Add(labels.FromStrings("a", "b"), 123, 0)
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testutil.Ok(t, err)
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// Reference should already work before commit.
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err = app1.AddFast(ref1, 124, 1)
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testutil.Ok(t, err)
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err = app1.Commit()
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testutil.Ok(t, err)
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app2 := db.Appender()
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// first ref should already work in next transaction.
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err = app2.AddFast(ref1, 125, 0)
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testutil.Ok(t, err)
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ref2, err := app2.Add(labels.FromStrings("a", "b"), 133, 1)
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testutil.Ok(t, err)
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testutil.Assert(t, ref1 == ref2, "")
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// Reference must be valid to add another sample.
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err = app2.AddFast(ref2, 143, 2)
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testutil.Ok(t, err)
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err = app2.AddFast(9999999, 1, 1)
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testutil.Equals(t, ErrNotFound, errors.Cause(err))
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testutil.Ok(t, app2.Commit())
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q, err := db.Querier(0, 200)
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testutil.Ok(t, err)
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res := query(t, q, labels.NewEqualMatcher("a", "b"))
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testutil.Equals(t, map[string][]sample{
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labels.FromStrings("a", "b").String(): {
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{t: 123, v: 0},
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{t: 124, v: 1},
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{t: 125, v: 0},
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{t: 133, v: 1},
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{t: 143, v: 2},
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},
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}, res)
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testutil.Ok(t, q.Close())
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}
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func TestDeleteSimple(t *testing.T) {
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numSamples := int64(10)
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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smpls := make([]float64, numSamples)
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for i := int64(0); i < numSamples; i++ {
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smpls[i] = rand.Float64()
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app.Add(labels.Labels{{"a", "b"}}, i, smpls[i])
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}
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testutil.Ok(t, app.Commit())
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cases := []struct {
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intervals Intervals
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remaint []int64
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}{
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{
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intervals: Intervals{{1, 3}, {4, 7}},
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remaint: []int64{0, 8, 9},
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},
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}
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Outer:
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for _, c := range cases {
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// TODO(gouthamve): Reset the tombstones somehow.
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// Delete the ranges.
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for _, r := range c.intervals {
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testutil.Ok(t, db.Delete(r.Mint, r.Maxt, labels.NewEqualMatcher("a", "b")))
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}
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// Compare the result.
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q, err := db.Querier(0, numSamples)
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testutil.Ok(t, err)
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res, err := q.Select(labels.NewEqualMatcher("a", "b"))
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testutil.Ok(t, err)
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expSamples := make([]Sample, 0, len(c.remaint))
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for _, ts := range c.remaint {
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expSamples = append(expSamples, sample{ts, smpls[ts]})
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}
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expss := newMockSeriesSet([]Series{
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newSeries(map[string]string{"a": "b"}, expSamples),
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})
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if len(expSamples) == 0 {
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testutil.Assert(t, res.Next() == false, "")
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continue
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}
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for {
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eok, rok := expss.Next(), res.Next()
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testutil.Equals(t, eok, rok)
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if !eok {
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continue Outer
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}
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sexp := expss.At()
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sres := res.At()
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testutil.Equals(t, sexp.Labels(), sres.Labels())
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smplExp, errExp := expandSeriesIterator(sexp.Iterator())
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smplRes, errRes := expandSeriesIterator(sres.Iterator())
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testutil.Equals(t, errExp, errRes)
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testutil.Equals(t, smplExp, smplRes)
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}
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}
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}
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func TestAmendDatapointCausesError(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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_, err := app.Add(labels.Labels{}, 0, 0)
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testutil.Ok(t, err)
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testutil.Ok(t, app.Commit())
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app = db.Appender()
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_, err = app.Add(labels.Labels{}, 0, 1)
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testutil.Equals(t, ErrAmendSample, err)
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testutil.Ok(t, app.Rollback())
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}
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func TestDuplicateNaNDatapointNoAmendError(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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_, err := app.Add(labels.Labels{}, 0, math.NaN())
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testutil.Ok(t, err)
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testutil.Ok(t, app.Commit())
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app = db.Appender()
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_, err = app.Add(labels.Labels{}, 0, math.NaN())
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testutil.Ok(t, err)
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}
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func TestNonDuplicateNaNDatapointsCausesAmendError(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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app := db.Appender()
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_, err := app.Add(labels.Labels{}, 0, math.Float64frombits(0x7ff0000000000001))
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testutil.Ok(t, err)
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testutil.Ok(t, app.Commit())
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app = db.Appender()
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_, err = app.Add(labels.Labels{}, 0, math.Float64frombits(0x7ff0000000000002))
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testutil.Equals(t, ErrAmendSample, err)
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}
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func TestSkippingInvalidValuesInSameTxn(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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defer db.Close()
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// Append AmendedValue.
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app := db.Appender()
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_, err := app.Add(labels.Labels{{"a", "b"}}, 0, 1)
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testutil.Ok(t, err)
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_, err = app.Add(labels.Labels{{"a", "b"}}, 0, 2)
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testutil.Ok(t, err)
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testutil.Ok(t, app.Commit())
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// Make sure the right value is stored.
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q, err := db.Querier(0, 10)
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testutil.Ok(t, err)
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ssMap := query(t, q, labels.NewEqualMatcher("a", "b"))
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testutil.Equals(t, map[string][]sample{
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labels.New(labels.Label{"a", "b"}).String(): {{0, 1}},
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}, ssMap)
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testutil.Ok(t, q.Close())
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// Append Out of Order Value.
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app = db.Appender()
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_, err = app.Add(labels.Labels{{"a", "b"}}, 10, 3)
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testutil.Ok(t, err)
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_, err = app.Add(labels.Labels{{"a", "b"}}, 7, 5)
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testutil.Ok(t, err)
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testutil.Ok(t, app.Commit())
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q, err = db.Querier(0, 10)
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testutil.Ok(t, err)
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ssMap = query(t, q, labels.NewEqualMatcher("a", "b"))
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testutil.Equals(t, map[string][]sample{
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labels.New(labels.Label{"a", "b"}).String(): {{0, 1}, {10, 3}},
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}, ssMap)
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testutil.Ok(t, q.Close())
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}
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func TestDB_Snapshot(t *testing.T) {
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db, close := openTestDB(t, nil)
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defer close()
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// append data
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app := db.Appender()
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mint := int64(1414141414000)
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for i := 0; i < 1000; i++ {
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_, err := app.Add(labels.FromStrings("foo", "bar"), mint+int64(i), 1.0)
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testutil.Ok(t, err)
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}
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testutil.Ok(t, app.Commit())
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testutil.Ok(t, app.Rollback())
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// create snapshot
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snap, err := ioutil.TempDir("", "snap")
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testutil.Ok(t, err)
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defer os.RemoveAll(snap)
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testutil.Ok(t, db.Snapshot(snap, true))
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testutil.Ok(t, db.Close())
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// reopen DB from snapshot
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db, err = Open(snap, nil, nil, nil)
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testutil.Ok(t, err)
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defer db.Close()
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querier, err := db.Querier(mint, mint+1000)
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testutil.Ok(t, err)
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defer querier.Close()
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// sum values
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seriesSet, err := querier.Select(labels.NewEqualMatcher("foo", "bar"))
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testutil.Ok(t, err)
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sum := 0.0
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for seriesSet.Next() {
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series := seriesSet.At().Iterator()
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for series.Next() {
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_, v := series.At()
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sum += v
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}
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testutil.Ok(t, series.Err())
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}
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testutil.Ok(t, seriesSet.Err())
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testutil.Equals(t, 1000.0, sum)
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}
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func TestDB_SnapshotWithDelete(t *testing.T) {
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numSamples := int64(10)
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db, close := openTestDB(t, nil)
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defer close()
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app := db.Appender()
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smpls := make([]float64, numSamples)
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for i := int64(0); i < numSamples; i++ {
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smpls[i] = rand.Float64()
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app.Add(labels.Labels{{"a", "b"}}, i, smpls[i])
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}
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|
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testutil.Ok(t, app.Commit())
|
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cases := []struct {
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intervals Intervals
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remaint []int64
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}{
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{
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intervals: Intervals{{1, 3}, {4, 7}},
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remaint: []int64{0, 8, 9},
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},
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}
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|
|
Outer:
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for _, c := range cases {
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// TODO(gouthamve): Reset the tombstones somehow.
|
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// Delete the ranges.
|
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for _, r := range c.intervals {
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testutil.Ok(t, db.Delete(r.Mint, r.Maxt, labels.NewEqualMatcher("a", "b")))
|
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}
|
|
|
|
// create snapshot
|
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snap, err := ioutil.TempDir("", "snap")
|
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testutil.Ok(t, err)
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|
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defer os.RemoveAll(snap)
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testutil.Ok(t, db.Snapshot(snap, true))
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testutil.Ok(t, db.Close())
|
|
|
|
// reopen DB from snapshot
|
|
db, err = Open(snap, nil, nil, nil)
|
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testutil.Ok(t, err)
|
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defer db.Close()
|
|
|
|
// Compare the result.
|
|
q, err := db.Querier(0, numSamples)
|
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testutil.Ok(t, err)
|
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defer q.Close()
|
|
|
|
res, err := q.Select(labels.NewEqualMatcher("a", "b"))
|
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testutil.Ok(t, err)
|
|
|
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expSamples := make([]Sample, 0, len(c.remaint))
|
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for _, ts := range c.remaint {
|
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expSamples = append(expSamples, sample{ts, smpls[ts]})
|
|
}
|
|
|
|
expss := newMockSeriesSet([]Series{
|
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newSeries(map[string]string{"a": "b"}, expSamples),
|
|
})
|
|
|
|
if len(expSamples) == 0 {
|
|
testutil.Assert(t, res.Next() == false, "")
|
|
continue
|
|
}
|
|
|
|
for {
|
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eok, rok := expss.Next(), res.Next()
|
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testutil.Equals(t, eok, rok)
|
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|
|
if !eok {
|
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continue Outer
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}
|
|
sexp := expss.At()
|
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sres := res.At()
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|
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testutil.Equals(t, sexp.Labels(), sres.Labels())
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|
|
smplExp, errExp := expandSeriesIterator(sexp.Iterator())
|
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smplRes, errRes := expandSeriesIterator(sres.Iterator())
|
|
|
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testutil.Equals(t, errExp, errRes)
|
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testutil.Equals(t, smplExp, smplRes)
|
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}
|
|
}
|
|
}
|
|
|
|
func TestDB_e2e(t *testing.T) {
|
|
const (
|
|
numDatapoints = 1000
|
|
numRanges = 1000
|
|
timeInterval = int64(3)
|
|
maxTime = int64(2 * 1000)
|
|
minTime = int64(200)
|
|
)
|
|
// Create 8 series with 1000 data-points of different ranges and run queries.
|
|
lbls := [][]labels.Label{
|
|
{
|
|
{"a", "b"},
|
|
{"instance", "localhost:9090"},
|
|
{"job", "prometheus"},
|
|
},
|
|
{
|
|
{"a", "b"},
|
|
{"instance", "127.0.0.1:9090"},
|
|
{"job", "prometheus"},
|
|
},
|
|
{
|
|
{"a", "b"},
|
|
{"instance", "127.0.0.1:9090"},
|
|
{"job", "prom-k8s"},
|
|
},
|
|
{
|
|
{"a", "b"},
|
|
{"instance", "localhost:9090"},
|
|
{"job", "prom-k8s"},
|
|
},
|
|
{
|
|
{"a", "c"},
|
|
{"instance", "localhost:9090"},
|
|
{"job", "prometheus"},
|
|
},
|
|
{
|
|
{"a", "c"},
|
|
{"instance", "127.0.0.1:9090"},
|
|
{"job", "prometheus"},
|
|
},
|
|
{
|
|
{"a", "c"},
|
|
{"instance", "127.0.0.1:9090"},
|
|
{"job", "prom-k8s"},
|
|
},
|
|
{
|
|
{"a", "c"},
|
|
{"instance", "localhost:9090"},
|
|
{"job", "prom-k8s"},
|
|
},
|
|
}
|
|
|
|
seriesMap := map[string][]sample{}
|
|
for _, l := range lbls {
|
|
seriesMap[labels.New(l...).String()] = []sample{}
|
|
}
|
|
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
defer db.Close()
|
|
|
|
app := db.Appender()
|
|
|
|
for _, l := range lbls {
|
|
lset := labels.New(l...)
|
|
series := []sample{}
|
|
|
|
ts := rand.Int63n(300)
|
|
for i := 0; i < numDatapoints; i++ {
|
|
v := rand.Float64()
|
|
|
|
series = append(series, sample{ts, v})
|
|
|
|
_, err := app.Add(lset, ts, v)
|
|
testutil.Ok(t, err)
|
|
|
|
ts += rand.Int63n(timeInterval) + 1
|
|
}
|
|
|
|
seriesMap[lset.String()] = series
|
|
}
|
|
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
// Query each selector on 1000 random time-ranges.
|
|
queries := []struct {
|
|
ms []labels.Matcher
|
|
}{
|
|
{
|
|
ms: []labels.Matcher{labels.NewEqualMatcher("a", "b")},
|
|
},
|
|
{
|
|
ms: []labels.Matcher{
|
|
labels.NewEqualMatcher("a", "b"),
|
|
labels.NewEqualMatcher("job", "prom-k8s"),
|
|
},
|
|
},
|
|
{
|
|
ms: []labels.Matcher{
|
|
labels.NewEqualMatcher("a", "c"),
|
|
labels.NewEqualMatcher("instance", "localhost:9090"),
|
|
labels.NewEqualMatcher("job", "prometheus"),
|
|
},
|
|
},
|
|
// TODO: Add Regexp Matchers.
|
|
}
|
|
|
|
for _, qry := range queries {
|
|
matched := labels.Slice{}
|
|
for _, ls := range lbls {
|
|
s := labels.Selector(qry.ms)
|
|
if s.Matches(ls) {
|
|
matched = append(matched, ls)
|
|
}
|
|
}
|
|
|
|
sort.Sort(matched)
|
|
|
|
for i := 0; i < numRanges; i++ {
|
|
mint := rand.Int63n(300)
|
|
maxt := mint + rand.Int63n(timeInterval*int64(numDatapoints))
|
|
|
|
expected := map[string][]sample{}
|
|
|
|
// Build the mockSeriesSet.
|
|
for _, m := range matched {
|
|
smpls := boundedSamples(seriesMap[m.String()], mint, maxt)
|
|
if len(smpls) > 0 {
|
|
expected[m.String()] = smpls
|
|
}
|
|
}
|
|
|
|
q, err := db.Querier(mint, maxt)
|
|
testutil.Ok(t, err)
|
|
|
|
ss, err := q.Select(qry.ms...)
|
|
testutil.Ok(t, err)
|
|
|
|
result := map[string][]sample{}
|
|
|
|
for ss.Next() {
|
|
x := ss.At()
|
|
|
|
smpls, err := expandSeriesIterator(x.Iterator())
|
|
testutil.Ok(t, err)
|
|
|
|
if len(smpls) > 0 {
|
|
result[x.Labels().String()] = smpls
|
|
}
|
|
}
|
|
|
|
testutil.Ok(t, ss.Err())
|
|
testutil.Equals(t, expected, result)
|
|
|
|
q.Close()
|
|
}
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func TestWALFlushedOnDBClose(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
|
|
dirDb := db.Dir()
|
|
|
|
lbls := labels.Labels{labels.Label{Name: "labelname", Value: "labelvalue"}}
|
|
|
|
app := db.Appender()
|
|
_, err := app.Add(lbls, 0, 1)
|
|
testutil.Ok(t, err)
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
testutil.Ok(t, db.Close())
|
|
|
|
db, err = Open(dirDb, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
defer db.Close()
|
|
|
|
q, err := db.Querier(0, 1)
|
|
testutil.Ok(t, err)
|
|
|
|
values, err := q.LabelValues("labelname")
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, []string{"labelvalue"}, values)
|
|
}
|
|
|
|
func TestTombstoneClean(t *testing.T) {
|
|
numSamples := int64(10)
|
|
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
|
|
app := db.Appender()
|
|
|
|
smpls := make([]float64, numSamples)
|
|
for i := int64(0); i < numSamples; i++ {
|
|
smpls[i] = rand.Float64()
|
|
app.Add(labels.Labels{{"a", "b"}}, i, smpls[i])
|
|
}
|
|
|
|
testutil.Ok(t, app.Commit())
|
|
cases := []struct {
|
|
intervals Intervals
|
|
remaint []int64
|
|
}{
|
|
{
|
|
intervals: Intervals{{1, 3}, {4, 7}},
|
|
remaint: []int64{0, 8, 9},
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
// Delete the ranges.
|
|
|
|
// create snapshot
|
|
snap, err := ioutil.TempDir("", "snap")
|
|
testutil.Ok(t, err)
|
|
|
|
defer os.RemoveAll(snap)
|
|
testutil.Ok(t, db.Snapshot(snap, true))
|
|
testutil.Ok(t, db.Close())
|
|
|
|
// reopen DB from snapshot
|
|
db, err = Open(snap, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
defer db.Close()
|
|
|
|
for _, r := range c.intervals {
|
|
testutil.Ok(t, db.Delete(r.Mint, r.Maxt, labels.NewEqualMatcher("a", "b")))
|
|
}
|
|
|
|
// All of the setup for THIS line.
|
|
testutil.Ok(t, db.CleanTombstones())
|
|
|
|
// Compare the result.
|
|
q, err := db.Querier(0, numSamples)
|
|
testutil.Ok(t, err)
|
|
defer q.Close()
|
|
|
|
res, err := q.Select(labels.NewEqualMatcher("a", "b"))
|
|
testutil.Ok(t, err)
|
|
|
|
expSamples := make([]Sample, 0, len(c.remaint))
|
|
for _, ts := range c.remaint {
|
|
expSamples = append(expSamples, sample{ts, smpls[ts]})
|
|
}
|
|
|
|
expss := newMockSeriesSet([]Series{
|
|
newSeries(map[string]string{"a": "b"}, expSamples),
|
|
})
|
|
|
|
if len(expSamples) == 0 {
|
|
testutil.Assert(t, res.Next() == false, "")
|
|
continue
|
|
}
|
|
|
|
for {
|
|
eok, rok := expss.Next(), res.Next()
|
|
testutil.Equals(t, eok, rok)
|
|
|
|
if !eok {
|
|
break
|
|
}
|
|
sexp := expss.At()
|
|
sres := res.At()
|
|
|
|
testutil.Equals(t, sexp.Labels(), sres.Labels())
|
|
|
|
smplExp, errExp := expandSeriesIterator(sexp.Iterator())
|
|
smplRes, errRes := expandSeriesIterator(sres.Iterator())
|
|
|
|
testutil.Equals(t, errExp, errRes)
|
|
testutil.Equals(t, smplExp, smplRes)
|
|
}
|
|
|
|
for _, b := range db.blocks {
|
|
testutil.Equals(t, NewMemTombstones(), b.tombstones)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestTombstoneCleanFail tests that a failing TombstoneClean doesn't leave any blocks behind.
|
|
// When TombstoneClean errors the original block that should be rebuilt doesn't get deleted so
|
|
// if TombstoneClean leaves any blocks behind these will overlap.
|
|
func TestTombstoneCleanFail(t *testing.T) {
|
|
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
|
|
var expectedBlockDirs []string
|
|
|
|
// Create some empty blocks pending for compaction.
|
|
// totalBlocks should be >=2 so we have enough blocks to trigger compaction failure.
|
|
totalBlocks := 2
|
|
for i := 0; i < totalBlocks; i++ {
|
|
entropy := rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
uid := ulid.MustNew(ulid.Now(), entropy)
|
|
meta := &BlockMeta{
|
|
Version: 2,
|
|
ULID: uid,
|
|
}
|
|
blockDir := filepath.Join(db.Dir(), uid.String())
|
|
block := createEmptyBlock(t, blockDir, meta)
|
|
|
|
// Add some some fake tombstones to trigger the compaction.
|
|
tomb := NewMemTombstones()
|
|
tomb.addInterval(0, Interval{0, 1})
|
|
block.tombstones = tomb
|
|
|
|
db.blocks = append(db.blocks, block)
|
|
expectedBlockDirs = append(expectedBlockDirs, blockDir)
|
|
}
|
|
|
|
// Initialize the mockCompactorFailing with a room for a single compaction iteration.
|
|
// mockCompactorFailing will fail on the second iteration so we can check if the cleanup works as expected.
|
|
db.compactor = &mockCompactorFailing{
|
|
t: t,
|
|
blocks: db.blocks,
|
|
max: totalBlocks + 1,
|
|
}
|
|
|
|
// The compactor should trigger a failure here.
|
|
testutil.NotOk(t, db.CleanTombstones())
|
|
|
|
// Now check that the CleanTombstones didn't leave any blocks behind after a failure.
|
|
actualBlockDirs, err := blockDirs(db.dir)
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, expectedBlockDirs, actualBlockDirs)
|
|
}
|
|
|
|
// mockCompactorFailing creates a new empty block on every write and fails when reached the max allowed total.
|
|
type mockCompactorFailing struct {
|
|
t *testing.T
|
|
blocks []*Block
|
|
max int
|
|
}
|
|
|
|
func (*mockCompactorFailing) Plan(dir string) ([]string, error) {
|
|
return nil, nil
|
|
}
|
|
func (c *mockCompactorFailing) Write(dest string, b BlockReader, mint, maxt int64, parent *BlockMeta) (ulid.ULID, error) {
|
|
if len(c.blocks) >= c.max {
|
|
return ulid.ULID{}, fmt.Errorf("the compactor already did the maximum allowed blocks so it is time to fail")
|
|
}
|
|
|
|
entropy := rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
uid := ulid.MustNew(ulid.Now(), entropy)
|
|
meta := &BlockMeta{
|
|
Version: 2,
|
|
ULID: uid,
|
|
}
|
|
|
|
block := createEmptyBlock(c.t, filepath.Join(dest, meta.ULID.String()), meta)
|
|
testutil.Ok(c.t, block.Close()) // Close block as we won't be using anywhere.
|
|
c.blocks = append(c.blocks, block)
|
|
|
|
// Now check that all expected blocks are actually persisted on disk.
|
|
// This way we make sure that the we have some blocks that are supposed to be removed.
|
|
var expectedBlocks []string
|
|
for _, b := range c.blocks {
|
|
expectedBlocks = append(expectedBlocks, filepath.Join(dest, b.Meta().ULID.String()))
|
|
}
|
|
actualBlockDirs, err := blockDirs(dest)
|
|
testutil.Ok(c.t, err)
|
|
|
|
testutil.Equals(c.t, expectedBlocks, actualBlockDirs)
|
|
|
|
return block.Meta().ULID, nil
|
|
}
|
|
|
|
func (*mockCompactorFailing) Compact(dest string, dirs ...string) (ulid.ULID, error) {
|
|
return ulid.ULID{}, nil
|
|
|
|
}
|
|
|
|
func TestDB_Retention(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
|
|
lbls := labels.Labels{labels.Label{Name: "labelname", Value: "labelvalue"}}
|
|
|
|
app := db.Appender()
|
|
_, err := app.Add(lbls, 0, 1)
|
|
testutil.Ok(t, err)
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
// create snapshot to make it create a block.
|
|
// TODO(gouthamve): Add a method to compact headblock.
|
|
snap, err := ioutil.TempDir("", "snap")
|
|
testutil.Ok(t, err)
|
|
|
|
defer os.RemoveAll(snap)
|
|
testutil.Ok(t, db.Snapshot(snap, true))
|
|
testutil.Ok(t, db.Close())
|
|
|
|
// reopen DB from snapshot
|
|
db, err = Open(snap, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, 1, len(db.blocks))
|
|
|
|
app = db.Appender()
|
|
_, err = app.Add(lbls, 100, 1)
|
|
testutil.Ok(t, err)
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
// Snapshot again to create another block.
|
|
snap, err = ioutil.TempDir("", "snap")
|
|
testutil.Ok(t, err)
|
|
defer os.RemoveAll(snap)
|
|
|
|
testutil.Ok(t, db.Snapshot(snap, true))
|
|
testutil.Ok(t, db.Close())
|
|
|
|
// reopen DB from snapshot
|
|
db, err = Open(snap, nil, nil, &Options{
|
|
RetentionDuration: 10,
|
|
BlockRanges: []int64{50},
|
|
})
|
|
testutil.Ok(t, err)
|
|
defer db.Close()
|
|
|
|
testutil.Equals(t, 2, len(db.blocks))
|
|
|
|
// Reload blocks, which should drop blocks beyond the retention boundary.
|
|
testutil.Ok(t, db.reload())
|
|
testutil.Equals(t, 1, len(db.blocks))
|
|
testutil.Equals(t, int64(100), db.blocks[0].meta.MaxTime) // To verify its the right block.
|
|
}
|
|
|
|
func TestNotMatcherSelectsLabelsUnsetSeries(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
|
|
labelpairs := []labels.Labels{
|
|
labels.FromStrings("a", "abcd", "b", "abcde"),
|
|
labels.FromStrings("labelname", "labelvalue"),
|
|
}
|
|
|
|
app := db.Appender()
|
|
for _, lbls := range labelpairs {
|
|
_, err := app.Add(lbls, 0, 1)
|
|
testutil.Ok(t, err)
|
|
}
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
cases := []struct {
|
|
selector labels.Selector
|
|
series []labels.Labels
|
|
}{{
|
|
selector: labels.Selector{
|
|
labels.Not(labels.NewEqualMatcher("lname", "lvalue")),
|
|
},
|
|
series: labelpairs,
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.NewEqualMatcher("a", "abcd"),
|
|
labels.Not(labels.NewEqualMatcher("b", "abcde")),
|
|
},
|
|
series: []labels.Labels{},
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.NewEqualMatcher("a", "abcd"),
|
|
labels.Not(labels.NewEqualMatcher("b", "abc")),
|
|
},
|
|
series: []labels.Labels{labelpairs[0]},
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.Not(labels.NewMustRegexpMatcher("a", "abd.*")),
|
|
},
|
|
series: labelpairs,
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.Not(labels.NewMustRegexpMatcher("a", "abc.*")),
|
|
},
|
|
series: labelpairs[1:],
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.Not(labels.NewMustRegexpMatcher("c", "abd.*")),
|
|
},
|
|
series: labelpairs,
|
|
}, {
|
|
selector: labels.Selector{
|
|
labels.Not(labels.NewMustRegexpMatcher("labelname", "labelvalue")),
|
|
},
|
|
series: labelpairs[:1],
|
|
}}
|
|
|
|
q, err := db.Querier(0, 10)
|
|
testutil.Ok(t, err)
|
|
defer q.Close()
|
|
|
|
for _, c := range cases {
|
|
ss, err := q.Select(c.selector...)
|
|
testutil.Ok(t, err)
|
|
|
|
lres, err := expandSeriesSet(ss)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, c.series, lres)
|
|
}
|
|
}
|
|
|
|
func expandSeriesSet(ss SeriesSet) ([]labels.Labels, error) {
|
|
result := []labels.Labels{}
|
|
for ss.Next() {
|
|
result = append(result, ss.At().Labels())
|
|
}
|
|
|
|
return result, ss.Err()
|
|
}
|
|
|
|
func TestOverlappingBlocksDetectsAllOverlaps(t *testing.T) {
|
|
// Create 10 blocks that does not overlap (0-10, 10-20, ..., 100-110) but in reverse order to ensure our algorithm
|
|
// will handle that.
|
|
var metas = make([]BlockMeta, 11)
|
|
for i := 10; i >= 0; i-- {
|
|
metas[i] = BlockMeta{MinTime: int64(i * 10), MaxTime: int64((i + 1) * 10)}
|
|
}
|
|
|
|
testutil.Assert(t, len(OverlappingBlocks(metas)) == 0, "we found unexpected overlaps")
|
|
|
|
// Add overlapping blocks. We've to establish order again since we aren't interested
|
|
// in trivial overlaps caused by unorderedness.
|
|
add := func(ms ...BlockMeta) []BlockMeta {
|
|
repl := append(append([]BlockMeta{}, metas...), ms...)
|
|
sort.Slice(repl, func(i, j int) bool {
|
|
return repl[i].MinTime < repl[j].MinTime
|
|
})
|
|
return repl
|
|
}
|
|
|
|
// o1 overlaps with 10-20.
|
|
o1 := BlockMeta{MinTime: 15, MaxTime: 17}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 15, Max: 17}: {metas[1], o1},
|
|
}, OverlappingBlocks(add(o1)))
|
|
|
|
// o2 overlaps with 20-30 and 30-40.
|
|
o2 := BlockMeta{MinTime: 21, MaxTime: 31}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 21, Max: 30}: {metas[2], o2},
|
|
{Min: 30, Max: 31}: {o2, metas[3]},
|
|
}, OverlappingBlocks(add(o2)))
|
|
|
|
// o3a and o3b overlaps with 30-40 and each other.
|
|
o3a := BlockMeta{MinTime: 33, MaxTime: 39}
|
|
o3b := BlockMeta{MinTime: 34, MaxTime: 36}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 34, Max: 36}: {metas[3], o3a, o3b},
|
|
}, OverlappingBlocks(add(o3a, o3b)))
|
|
|
|
// o4 is 1:1 overlap with 50-60.
|
|
o4 := BlockMeta{MinTime: 50, MaxTime: 60}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 50, Max: 60}: {metas[5], o4},
|
|
}, OverlappingBlocks(add(o4)))
|
|
|
|
// o5 overlaps with 60-70, 70-80 and 80-90.
|
|
o5 := BlockMeta{MinTime: 61, MaxTime: 85}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 61, Max: 70}: {metas[6], o5},
|
|
{Min: 70, Max: 80}: {o5, metas[7]},
|
|
{Min: 80, Max: 85}: {o5, metas[8]},
|
|
}, OverlappingBlocks(add(o5)))
|
|
|
|
// o6a overlaps with 90-100, 100-110 and o6b, o6b overlaps with 90-100 and o6a.
|
|
o6a := BlockMeta{MinTime: 92, MaxTime: 105}
|
|
o6b := BlockMeta{MinTime: 94, MaxTime: 99}
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 94, Max: 99}: {metas[9], o6a, o6b},
|
|
{Min: 100, Max: 105}: {o6a, metas[10]},
|
|
}, OverlappingBlocks(add(o6a, o6b)))
|
|
|
|
// All together.
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 15, Max: 17}: {metas[1], o1},
|
|
{Min: 21, Max: 30}: {metas[2], o2}, {Min: 30, Max: 31}: {o2, metas[3]},
|
|
{Min: 34, Max: 36}: {metas[3], o3a, o3b},
|
|
{Min: 50, Max: 60}: {metas[5], o4},
|
|
{Min: 61, Max: 70}: {metas[6], o5}, {Min: 70, Max: 80}: {o5, metas[7]}, {Min: 80, Max: 85}: {o5, metas[8]},
|
|
{Min: 94, Max: 99}: {metas[9], o6a, o6b}, {Min: 100, Max: 105}: {o6a, metas[10]},
|
|
}, OverlappingBlocks(add(o1, o2, o3a, o3b, o4, o5, o6a, o6b)))
|
|
|
|
// Additional case.
|
|
var nc1 []BlockMeta
|
|
nc1 = append(nc1, BlockMeta{MinTime: 1, MaxTime: 5})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 2, MaxTime: 3})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 2, MaxTime: 3})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 2, MaxTime: 3})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 2, MaxTime: 3})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 2, MaxTime: 6})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 3, MaxTime: 5})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 5, MaxTime: 7})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 7, MaxTime: 10})
|
|
nc1 = append(nc1, BlockMeta{MinTime: 8, MaxTime: 9})
|
|
testutil.Equals(t, Overlaps{
|
|
{Min: 2, Max: 3}: {nc1[0], nc1[1], nc1[2], nc1[3], nc1[4], nc1[5]}, // 1-5, 2-3, 2-3, 2-3, 2-3, 2,6
|
|
{Min: 3, Max: 5}: {nc1[0], nc1[5], nc1[6]}, // 1-5, 2-6, 3-5
|
|
{Min: 5, Max: 6}: {nc1[5], nc1[7]}, // 2-6, 5-7
|
|
{Min: 8, Max: 9}: {nc1[8], nc1[9]}, // 7-10, 8-9
|
|
}, OverlappingBlocks(nc1))
|
|
}
|
|
|
|
// Regression test for https://github.com/prometheus/tsdb/issues/347
|
|
func TestChunkAtBlockBoundary(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
defer db.Close()
|
|
|
|
app := db.Appender()
|
|
|
|
blockRange := DefaultOptions.BlockRanges[0]
|
|
label := labels.FromStrings("foo", "bar")
|
|
|
|
for i := int64(0); i < 3; i++ {
|
|
_, err := app.Add(label, i*blockRange, 0)
|
|
testutil.Ok(t, err)
|
|
_, err = app.Add(label, i*blockRange+1000, 0)
|
|
testutil.Ok(t, err)
|
|
}
|
|
|
|
err := app.Commit()
|
|
testutil.Ok(t, err)
|
|
|
|
err = db.compact()
|
|
testutil.Ok(t, err)
|
|
|
|
for _, block := range db.blocks {
|
|
r, err := block.Index()
|
|
testutil.Ok(t, err)
|
|
defer r.Close()
|
|
|
|
meta := block.Meta()
|
|
|
|
p, err := r.Postings(index.AllPostingsKey())
|
|
testutil.Ok(t, err)
|
|
|
|
var (
|
|
lset labels.Labels
|
|
chks []chunks.Meta
|
|
)
|
|
|
|
chunkCount := 0
|
|
|
|
for p.Next() {
|
|
err = r.Series(p.At(), &lset, &chks)
|
|
testutil.Ok(t, err)
|
|
for _, c := range chks {
|
|
testutil.Assert(t, meta.MinTime <= c.MinTime && c.MaxTime <= meta.MaxTime,
|
|
"chunk spans beyond block boundaries: [block.MinTime=%d, block.MaxTime=%d]; [chunk.MinTime=%d, chunk.MaxTime=%d]",
|
|
meta.MinTime, meta.MaxTime, c.MinTime, c.MaxTime)
|
|
chunkCount++
|
|
}
|
|
}
|
|
testutil.Assert(t, chunkCount == 1, "expected 1 chunk in block %s, got %d", meta.ULID, chunkCount)
|
|
}
|
|
}
|
|
|
|
func TestQuerierWithBoundaryChunks(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
defer db.Close()
|
|
|
|
app := db.Appender()
|
|
|
|
blockRange := DefaultOptions.BlockRanges[0]
|
|
label := labels.FromStrings("foo", "bar")
|
|
|
|
for i := int64(0); i < 5; i++ {
|
|
_, err := app.Add(label, i*blockRange, 0)
|
|
testutil.Ok(t, err)
|
|
}
|
|
|
|
err := app.Commit()
|
|
testutil.Ok(t, err)
|
|
|
|
err = db.compact()
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Assert(t, len(db.blocks) >= 3, "invalid test, less than three blocks in DB")
|
|
|
|
q, err := db.Querier(blockRange, 2*blockRange)
|
|
testutil.Ok(t, err)
|
|
defer q.Close()
|
|
|
|
// The requested interval covers 2 blocks, so the querier should contain 2 blocks.
|
|
count := len(q.(*querier).blocks)
|
|
testutil.Assert(t, count == 2, "expected 2 blocks in querier, got %d", count)
|
|
}
|
|
|
|
func TestInitializeHeadTimestamp(t *testing.T) {
|
|
t.Run("clean", func(t *testing.T) {
|
|
dir, err := ioutil.TempDir("", "test_head_init")
|
|
testutil.Ok(t, err)
|
|
defer os.RemoveAll(dir)
|
|
|
|
db, err := Open(dir, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
|
|
// Should be set to init values if no WAL or blocks exist so far.
|
|
testutil.Equals(t, int64(math.MaxInt64), db.head.MinTime())
|
|
testutil.Equals(t, int64(math.MinInt64), db.head.MaxTime())
|
|
|
|
// First added sample initializes the writable range.
|
|
app := db.Appender()
|
|
_, err = app.Add(labels.FromStrings("a", "b"), 1000, 1)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, int64(1000), db.head.MinTime())
|
|
testutil.Equals(t, int64(1000), db.head.MaxTime())
|
|
})
|
|
t.Run("wal-only", func(t *testing.T) {
|
|
dir, err := ioutil.TempDir("", "test_head_init")
|
|
testutil.Ok(t, err)
|
|
defer os.RemoveAll(dir)
|
|
|
|
testutil.Ok(t, os.MkdirAll(path.Join(dir, "wal"), 0777))
|
|
w, err := wal.New(nil, nil, path.Join(dir, "wal"))
|
|
testutil.Ok(t, err)
|
|
|
|
var enc RecordEncoder
|
|
err = w.Log(
|
|
enc.Series([]RefSeries{
|
|
{Ref: 123, Labels: labels.FromStrings("a", "1")},
|
|
{Ref: 124, Labels: labels.FromStrings("a", "2")},
|
|
}, nil),
|
|
enc.Samples([]RefSample{
|
|
{Ref: 123, T: 5000, V: 1},
|
|
{Ref: 124, T: 15000, V: 1},
|
|
}, nil),
|
|
)
|
|
testutil.Ok(t, err)
|
|
testutil.Ok(t, w.Close())
|
|
|
|
db, err := Open(dir, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, int64(5000), db.head.MinTime())
|
|
testutil.Equals(t, int64(15000), db.head.MaxTime())
|
|
})
|
|
t.Run("existing-block", func(t *testing.T) {
|
|
dir, err := ioutil.TempDir("", "test_head_init")
|
|
testutil.Ok(t, err)
|
|
defer os.RemoveAll(dir)
|
|
|
|
id := ulid.MustNew(2000, nil)
|
|
createEmptyBlock(t, path.Join(dir, id.String()), &BlockMeta{
|
|
ULID: id,
|
|
MinTime: 1000,
|
|
MaxTime: 2000,
|
|
})
|
|
|
|
db, err := Open(dir, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, int64(2000), db.head.MinTime())
|
|
testutil.Equals(t, int64(2000), db.head.MaxTime())
|
|
})
|
|
t.Run("existing-block-and-wal", func(t *testing.T) {
|
|
dir, err := ioutil.TempDir("", "test_head_init")
|
|
testutil.Ok(t, err)
|
|
defer os.RemoveAll(dir)
|
|
|
|
id := ulid.MustNew(2000, nil)
|
|
createEmptyBlock(t, path.Join(dir, id.String()), &BlockMeta{
|
|
ULID: id,
|
|
MinTime: 1000,
|
|
MaxTime: 6000,
|
|
})
|
|
|
|
testutil.Ok(t, os.MkdirAll(path.Join(dir, "wal"), 0777))
|
|
w, err := wal.New(nil, nil, path.Join(dir, "wal"))
|
|
testutil.Ok(t, err)
|
|
|
|
var enc RecordEncoder
|
|
err = w.Log(
|
|
enc.Series([]RefSeries{
|
|
{Ref: 123, Labels: labels.FromStrings("a", "1")},
|
|
{Ref: 124, Labels: labels.FromStrings("a", "2")},
|
|
}, nil),
|
|
enc.Samples([]RefSample{
|
|
{Ref: 123, T: 5000, V: 1},
|
|
{Ref: 124, T: 15000, V: 1},
|
|
}, nil),
|
|
)
|
|
testutil.Ok(t, err)
|
|
testutil.Ok(t, w.Close())
|
|
|
|
db, err := Open(dir, nil, nil, nil)
|
|
testutil.Ok(t, err)
|
|
|
|
testutil.Equals(t, int64(6000), db.head.MinTime())
|
|
testutil.Equals(t, int64(15000), db.head.MaxTime())
|
|
})
|
|
}
|
|
|
|
func TestCorrectNumTombstones(t *testing.T) {
|
|
db, close := openTestDB(t, nil)
|
|
defer close()
|
|
defer db.Close()
|
|
|
|
blockRange := DefaultOptions.BlockRanges[0]
|
|
label := labels.FromStrings("foo", "bar")
|
|
|
|
app := db.Appender()
|
|
for i := int64(0); i < 3; i++ {
|
|
for j := int64(0); j < 15; j++ {
|
|
_, err := app.Add(label, i*blockRange+j, 0)
|
|
testutil.Ok(t, err)
|
|
}
|
|
}
|
|
testutil.Ok(t, app.Commit())
|
|
|
|
err := db.compact()
|
|
testutil.Ok(t, err)
|
|
testutil.Equals(t, 1, len(db.blocks))
|
|
|
|
testutil.Ok(t, db.Delete(0, 1, labels.NewEqualMatcher("foo", "bar")))
|
|
testutil.Equals(t, uint64(1), db.blocks[0].meta.Stats.NumTombstones)
|
|
|
|
// {0, 1} and {2, 3} are merged to form 1 tombstone.
|
|
testutil.Ok(t, db.Delete(2, 3, labels.NewEqualMatcher("foo", "bar")))
|
|
testutil.Equals(t, uint64(1), db.blocks[0].meta.Stats.NumTombstones)
|
|
|
|
testutil.Ok(t, db.Delete(5, 6, labels.NewEqualMatcher("foo", "bar")))
|
|
testutil.Equals(t, uint64(2), db.blocks[0].meta.Stats.NumTombstones)
|
|
|
|
testutil.Ok(t, db.Delete(9, 11, labels.NewEqualMatcher("foo", "bar")))
|
|
testutil.Equals(t, uint64(3), db.blocks[0].meta.Stats.NumTombstones)
|
|
}
|