mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
808 lines
22 KiB
Go
808 lines
22 KiB
Go
package storage
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import (
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"fmt"
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"math/rand"
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"os"
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"reflect"
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"strings"
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"testing"
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"testing/quick"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/uint64set"
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)
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func TestUpdateCurrHourMetricIDs(t *testing.T) {
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newStorage := func() *Storage {
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var s Storage
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s.currHourMetricIDs.Store(&hourMetricIDs{})
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s.prevHourMetricIDs.Store(&hourMetricIDs{})
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s.pendingHourEntries = &uint64set.Set{}
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return &s
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}
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t.Run("empty_pedning_metric_ids_stale_curr_hour", func(t *testing.T) {
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s := newStorage()
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hour := uint64(timestampFromTime(time.Now())) / msecPerHour
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hmOrig := &hourMetricIDs{
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m: &uint64set.Set{},
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iidx: newInmemoryInvertedIndex(),
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hour: 123,
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}
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hmOrig.m.Add(12)
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hmOrig.m.Add(34)
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s.currHourMetricIDs.Store(hmOrig)
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s.updateCurrHourMetricIDs()
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hmCurr := s.currHourMetricIDs.Load().(*hourMetricIDs)
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if hmCurr.hour != hour {
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// It is possible new hour occured. Update the hour and verify it again.
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hour = uint64(timestampFromTime(time.Now())) / msecPerHour
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if hmCurr.hour != hour {
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t.Fatalf("unexpected hmCurr.hour; got %d; want %d", hmCurr.hour, hour)
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}
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}
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if hmCurr.m.Len() != 0 {
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t.Fatalf("unexpected length of hm.m; got %d; want %d", hmCurr.m.Len(), 0)
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}
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if !hmCurr.isFull {
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t.Fatalf("unexpected hmCurr.isFull; got %v; want %v", hmCurr.isFull, true)
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}
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hmPrev := s.prevHourMetricIDs.Load().(*hourMetricIDs)
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if !reflect.DeepEqual(hmPrev, hmOrig) {
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t.Fatalf("unexpected hmPrev; got %v; want %v", hmPrev, hmOrig)
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}
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if s.pendingHourEntries.Len() != 0 {
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t.Fatalf("unexpected s.pendingHourEntries.Len(); got %d; want %d", s.pendingHourEntries.Len(), 0)
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}
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})
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t.Run("empty_pedning_metric_ids_valid_curr_hour", func(t *testing.T) {
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s := newStorage()
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hour := uint64(timestampFromTime(time.Now())) / msecPerHour
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hmOrig := &hourMetricIDs{
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m: &uint64set.Set{},
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iidx: newInmemoryInvertedIndex(),
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hour: hour,
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}
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hmOrig.m.Add(12)
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hmOrig.m.Add(34)
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s.currHourMetricIDs.Store(hmOrig)
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s.updateCurrHourMetricIDs()
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hmCurr := s.currHourMetricIDs.Load().(*hourMetricIDs)
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if hmCurr.hour != hour {
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// It is possible new hour occured. Update the hour and verify it again.
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hour = uint64(timestampFromTime(time.Now())) / msecPerHour
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if hmCurr.hour != hour {
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t.Fatalf("unexpected hmCurr.hour; got %d; want %d", hmCurr.hour, hour)
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}
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// Do not run other checks, since they may fail.
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return
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}
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if !reflect.DeepEqual(hmCurr, hmOrig) {
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t.Fatalf("unexpected hmCurr; got %v; want %v", hmCurr, hmOrig)
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}
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if hmCurr.isFull {
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t.Fatalf("unexpected hmCurr.isFull; got %v; want %v", hmCurr.isFull, false)
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}
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hmPrev := s.prevHourMetricIDs.Load().(*hourMetricIDs)
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hmEmpty := &hourMetricIDs{}
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if !reflect.DeepEqual(hmPrev, hmEmpty) {
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t.Fatalf("unexpected hmPrev; got %v; want %v", hmPrev, hmEmpty)
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}
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if s.pendingHourEntries.Len() != 0 {
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t.Fatalf("unexpected s.pendingHourEntries.Len(); got %d; want %d", s.pendingHourEntries.Len(), 0)
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}
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})
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t.Run("nonempty_pending_metric_ids_stale_curr_hour", func(t *testing.T) {
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s := newStorage()
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pendingHourEntries := &uint64set.Set{}
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pendingHourEntries.Add(343)
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pendingHourEntries.Add(32424)
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pendingHourEntries.Add(8293432)
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s.pendingHourEntries = pendingHourEntries
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hour := uint64(timestampFromTime(time.Now())) / msecPerHour
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hmOrig := &hourMetricIDs{
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m: &uint64set.Set{},
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iidx: newInmemoryInvertedIndex(),
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hour: 123,
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}
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hmOrig.m.Add(12)
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hmOrig.m.Add(34)
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s.currHourMetricIDs.Store(hmOrig)
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s.updateCurrHourMetricIDs()
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hmCurr := s.currHourMetricIDs.Load().(*hourMetricIDs)
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if hmCurr.hour != hour {
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// It is possible new hour occured. Update the hour and verify it again.
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hour = uint64(timestampFromTime(time.Now())) / msecPerHour
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if hmCurr.hour != hour {
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t.Fatalf("unexpected hmCurr.hour; got %d; want %d", hmCurr.hour, hour)
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}
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}
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if !hmCurr.m.Equal(pendingHourEntries) {
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t.Fatalf("unexpected hmCurr.m; got %v; want %v", hmCurr.m, pendingHourEntries)
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}
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if !hmCurr.isFull {
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t.Fatalf("unexpected hmCurr.isFull; got %v; want %v", hmCurr.isFull, true)
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}
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hmPrev := s.prevHourMetricIDs.Load().(*hourMetricIDs)
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if !reflect.DeepEqual(hmPrev, hmOrig) {
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t.Fatalf("unexpected hmPrev; got %v; want %v", hmPrev, hmOrig)
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}
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if s.pendingHourEntries.Len() != 0 {
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t.Fatalf("unexpected s.pendingHourEntries.Len(); got %d; want %d", s.pendingHourEntries.Len(), 0)
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}
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})
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t.Run("nonempty_pending_metric_ids_valid_curr_hour", func(t *testing.T) {
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s := newStorage()
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pendingHourEntries := &uint64set.Set{}
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pendingHourEntries.Add(343)
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pendingHourEntries.Add(32424)
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pendingHourEntries.Add(8293432)
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s.pendingHourEntries = pendingHourEntries
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hour := uint64(timestampFromTime(time.Now())) / msecPerHour
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hmOrig := &hourMetricIDs{
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m: &uint64set.Set{},
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iidx: newInmemoryInvertedIndex(),
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hour: hour,
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}
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hmOrig.m.Add(12)
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hmOrig.m.Add(34)
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s.currHourMetricIDs.Store(hmOrig)
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s.updateCurrHourMetricIDs()
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hmCurr := s.currHourMetricIDs.Load().(*hourMetricIDs)
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if hmCurr.hour != hour {
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// It is possible new hour occured. Update the hour and verify it again.
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hour = uint64(timestampFromTime(time.Now())) / msecPerHour
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if hmCurr.hour != hour {
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t.Fatalf("unexpected hmCurr.hour; got %d; want %d", hmCurr.hour, hour)
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}
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// Do not run other checks, since they may fail.
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return
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}
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m := pendingHourEntries.Clone()
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origMetricIDs := hmOrig.m.AppendTo(nil)
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for _, metricID := range origMetricIDs {
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m.Add(metricID)
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}
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if !hmCurr.m.Equal(m) {
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t.Fatalf("unexpected hm.m; got %v; want %v", hmCurr.m, m)
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}
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if hmCurr.isFull {
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t.Fatalf("unexpected hmCurr.isFull; got %v; want %v", hmCurr.isFull, false)
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}
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hmPrev := s.prevHourMetricIDs.Load().(*hourMetricIDs)
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hmEmpty := &hourMetricIDs{}
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if !reflect.DeepEqual(hmPrev, hmEmpty) {
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t.Fatalf("unexpected hmPrev; got %v; want %v", hmPrev, hmEmpty)
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}
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if s.pendingHourEntries.Len() != 0 {
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t.Fatalf("unexpected s.pendingHourEntries.Len(); got %d; want %d", s.pendingHourEntries.Len(), 0)
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}
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})
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}
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func TestMetricRowMarshalUnmarshal(t *testing.T) {
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var buf []byte
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typ := reflect.TypeOf(&MetricRow{})
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rnd := rand.New(rand.NewSource(1))
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for i := 0; i < 1000; i++ {
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v, ok := quick.Value(typ, rnd)
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if !ok {
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t.Fatalf("cannot create random MetricRow via quick.Value")
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}
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mr1 := v.Interface().(*MetricRow)
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if mr1 == nil {
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continue
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}
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buf = mr1.Marshal(buf[:0])
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var mr2 MetricRow
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tail, err := mr2.Unmarshal(buf)
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if err != nil {
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t.Fatalf("cannot unmarshal mr1=%s: %s", mr1, err)
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}
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if len(tail) > 0 {
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t.Fatalf("non-empty tail returned after MetricRow.Unmarshal for mr1=%s", mr1)
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}
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if mr1.MetricNameRaw == nil {
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mr1.MetricNameRaw = []byte{}
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}
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if mr2.MetricNameRaw == nil {
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mr2.MetricNameRaw = []byte{}
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}
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if !reflect.DeepEqual(mr1, &mr2) {
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t.Fatalf("mr1 should match mr2; got\nmr1=%s\nmr2=%s", mr1, &mr2)
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}
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}
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}
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func TestNextRetentionDuration(t *testing.T) {
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for retentionMonths := 1; retentionMonths < 360; retentionMonths++ {
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currTime := time.Now().UTC()
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d := nextRetentionDuration(retentionMonths)
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if d < 0 {
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nextTime := time.Now().UTC().Add(d)
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t.Fatalf("unexected retention duration for retentionMonths=%d; got %s; must be %s + %d months", retentionMonths, nextTime, currTime, retentionMonths)
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}
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}
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}
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func TestStorageOpenClose(t *testing.T) {
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path := "TestStorageOpenClose"
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for i := 0; i < 10; i++ {
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s, err := OpenStorage(path, -1)
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if err != nil {
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t.Fatalf("cannot open storage: %s", err)
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}
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s.MustClose()
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}
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if err := os.RemoveAll(path); err != nil {
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t.Fatalf("cannot remove %q: %s", path, err)
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}
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}
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func TestStorageOpenMultipleTimes(t *testing.T) {
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path := "TestStorageOpenMultipleTimes"
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s1, err := OpenStorage(path, -1)
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if err != nil {
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t.Fatalf("cannot open storage the first time: %s", err)
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}
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for i := 0; i < 10; i++ {
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s2, err := OpenStorage(path, -1)
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if err == nil {
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s2.MustClose()
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t.Fatalf("expecting non-nil error when opening already opened storage")
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}
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}
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s1.MustClose()
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if err := os.RemoveAll(path); err != nil {
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t.Fatalf("cannot remove %q: %s", path, err)
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}
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}
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func TestStorageRandTimestamps(t *testing.T) {
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path := "TestStorageRandTimestamps"
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retentionMonths := 60
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s, err := OpenStorage(path, retentionMonths)
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if err != nil {
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t.Fatalf("cannot open storage: %s", err)
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}
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t.Run("serial", func(t *testing.T) {
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for i := 0; i < 3; i++ {
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if err := testStorageRandTimestamps(s); err != nil {
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t.Fatal(err)
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}
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s.MustClose()
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s, err = OpenStorage(path, retentionMonths)
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}
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})
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t.Run("concurrent", func(t *testing.T) {
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ch := make(chan error, 3)
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for i := 0; i < cap(ch); i++ {
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go func() {
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var err error
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for i := 0; i < 2; i++ {
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err = testStorageRandTimestamps(s)
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}
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ch <- err
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}()
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}
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for i := 0; i < cap(ch); i++ {
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select {
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case err := <-ch:
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if err != nil {
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t.Fatal(err)
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}
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case <-time.After(time.Second * 10):
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t.Fatal("timeout")
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}
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}
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})
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s.MustClose()
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if err := os.RemoveAll(path); err != nil {
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t.Fatalf("cannot remove %q: %s", path, err)
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}
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}
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func testStorageRandTimestamps(s *Storage) error {
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const rowsPerAdd = 1e3
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const addsCount = 2
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typ := reflect.TypeOf(int64(0))
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rnd := rand.New(rand.NewSource(1))
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for i := 0; i < addsCount; i++ {
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var mrs []MetricRow
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var mn MetricName
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mn.Tags = []Tag{
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{[]byte("job"), []byte("webservice")},
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{[]byte("instance"), []byte("1.2.3.4")},
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}
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for j := 0; j < rowsPerAdd; j++ {
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mn.MetricGroup = []byte(fmt.Sprintf("metric_%d", rand.Intn(100)))
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metricNameRaw := mn.marshalRaw(nil)
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timestamp := int64(rnd.NormFloat64() * 1e12)
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if j%2 == 0 {
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ts, ok := quick.Value(typ, rnd)
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if !ok {
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return fmt.Errorf("cannot create random timestamp via quick.Value")
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}
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timestamp = ts.Interface().(int64)
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}
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value := rnd.NormFloat64() * 1e12
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mr := MetricRow{
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MetricNameRaw: metricNameRaw,
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Timestamp: timestamp,
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Value: value,
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}
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mrs = append(mrs, mr)
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}
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if err := s.AddRows(mrs, defaultPrecisionBits); err != nil {
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errStr := err.Error()
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if !strings.Contains(errStr, "too big timestamp") && !strings.Contains(errStr, "too small timestamp") {
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return fmt.Errorf("unexpected error when adding mrs: %s", err)
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}
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}
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}
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// Verify the storage contains rows.
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var m Metrics
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s.UpdateMetrics(&m)
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if m.TableMetrics.SmallRowsCount == 0 {
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return fmt.Errorf("expecting at least one row in the table")
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}
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return nil
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}
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func TestStorageDeleteMetrics(t *testing.T) {
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path := "TestStorageDeleteMetrics"
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s, err := OpenStorage(path, 0)
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if err != nil {
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t.Fatalf("cannot open storage: %s", err)
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}
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// Verify no tag keys exist
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tks, err := s.SearchTagKeys(1e5)
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if err != nil {
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t.Fatalf("error in SearchTagKeys at the start: %s", err)
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}
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if len(tks) != 0 {
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t.Fatalf("found non-empty tag keys at the start: %q", tks)
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}
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t.Run("serial", func(t *testing.T) {
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for i := 0; i < 3; i++ {
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if err = testStorageDeleteMetrics(s, 0); err != nil {
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t.Fatalf("unexpected error: %s", err)
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}
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// Re-open the storage in order to check how deleted metricIDs
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// are persisted.
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s.MustClose()
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s, err = OpenStorage(path, 0)
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if err != nil {
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t.Fatalf("cannot open storage after closing: %s", err)
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}
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}
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})
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t.Run("concurrent", func(t *testing.T) {
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ch := make(chan error, 3)
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for i := 0; i < cap(ch); i++ {
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go func(workerNum int) {
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var err error
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for j := 0; j < 2; j++ {
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err = testStorageDeleteMetrics(s, workerNum)
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if err != nil {
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break
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}
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}
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ch <- err
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}(i)
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}
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for i := 0; i < cap(ch); i++ {
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select {
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case err := <-ch:
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if err != nil {
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t.Fatalf("unexpected error: %s", err)
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}
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case <-time.After(30 * time.Second):
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t.Fatalf("timeout")
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}
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}
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})
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// Verify no more tag keys exist
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tks, err = s.SearchTagKeys(1e5)
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if err != nil {
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t.Fatalf("error in SearchTagKeys after the test: %s", err)
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}
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if len(tks) != 0 {
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t.Fatalf("found non-empty tag keys after the test: %q", tks)
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}
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s.MustClose()
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if err := os.RemoveAll(path); err != nil {
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t.Fatalf("cannot remove %q: %s", path, err)
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}
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}
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func testStorageDeleteMetrics(s *Storage, workerNum int) error {
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const rowsPerMetric = 100
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const metricsCount = 30
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workerTag := []byte(fmt.Sprintf("workerTag_%d", workerNum))
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tksAll := make(map[string]bool)
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tksAll[""] = true // __name__
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for i := 0; i < metricsCount; i++ {
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var mrs []MetricRow
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var mn MetricName
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job := fmt.Sprintf("job_%d_%d", i, workerNum)
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instance := fmt.Sprintf("instance_%d_%d", i, workerNum)
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mn.Tags = []Tag{
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{[]byte("job"), []byte(job)},
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{[]byte("instance"), []byte(instance)},
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{workerTag, []byte("foobar")},
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}
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for i := range mn.Tags {
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tksAll[string(mn.Tags[i].Key)] = true
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}
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mn.MetricGroup = []byte(fmt.Sprintf("metric_%d_%d", i, workerNum))
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metricNameRaw := mn.marshalRaw(nil)
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for j := 0; j < rowsPerMetric; j++ {
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timestamp := rand.Int63n(1e10)
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value := rand.NormFloat64() * 1e6
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mr := MetricRow{
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MetricNameRaw: metricNameRaw,
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Timestamp: timestamp,
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Value: value,
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}
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mrs = append(mrs, mr)
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}
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if err := s.AddRows(mrs, defaultPrecisionBits); err != nil {
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return fmt.Errorf("unexpected error when adding mrs: %s", err)
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}
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}
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s.debugFlush()
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|
// Verify tag values exist
|
|
tvs, err := s.SearchTagValues(workerTag, 1e5)
|
|
if err != nil {
|
|
return fmt.Errorf("error in SearchTagValues before metrics removal: %s", err)
|
|
}
|
|
if len(tvs) == 0 {
|
|
return fmt.Errorf("unexpected empty number of tag values for workerTag")
|
|
}
|
|
|
|
// Verify tag keys exist
|
|
tks, err := s.SearchTagKeys(1e5)
|
|
if err != nil {
|
|
return fmt.Errorf("error in SearchTagKeys before metrics removal: %s", err)
|
|
}
|
|
if err := checkTagKeys(tks, tksAll); err != nil {
|
|
return fmt.Errorf("unexpected tag keys before metrics removal: %s", err)
|
|
}
|
|
|
|
var sr Search
|
|
tr := TimeRange{
|
|
MinTimestamp: 0,
|
|
MaxTimestamp: 2e10,
|
|
}
|
|
metricBlocksCount := func(tfs *TagFilters) int {
|
|
// Verify the number of blocks with fetchData=true
|
|
n := 0
|
|
sr.Init(s, []*TagFilters{tfs}, tr, true, 1e5)
|
|
for sr.NextMetricBlock() {
|
|
n++
|
|
}
|
|
sr.MustClose()
|
|
|
|
// Make sure the number of blocks with fetchData=false is the same.
|
|
m := 0
|
|
sr.Init(s, []*TagFilters{tfs}, tr, false, 1e5)
|
|
for sr.NextMetricBlock() {
|
|
m++
|
|
}
|
|
sr.MustClose()
|
|
if n != m {
|
|
return -1
|
|
}
|
|
return n
|
|
}
|
|
for i := 0; i < metricsCount; i++ {
|
|
tfs := NewTagFilters()
|
|
if err := tfs.Add(nil, []byte("metric_.+"), false, true); err != nil {
|
|
return fmt.Errorf("cannot add regexp tag filter: %s", err)
|
|
}
|
|
job := fmt.Sprintf("job_%d_%d", i, workerNum)
|
|
if err := tfs.Add([]byte("job"), []byte(job), false, false); err != nil {
|
|
return fmt.Errorf("cannot add job tag filter: %s", err)
|
|
}
|
|
if n := metricBlocksCount(tfs); n == 0 {
|
|
return fmt.Errorf("expecting non-zero number of metric blocks for tfs=%s", tfs)
|
|
}
|
|
deletedCount, err := s.DeleteMetrics([]*TagFilters{tfs})
|
|
if err != nil {
|
|
return fmt.Errorf("cannot delete metrics: %s", err)
|
|
}
|
|
if deletedCount == 0 {
|
|
return fmt.Errorf("expecting non-zero number of deleted metrics")
|
|
}
|
|
if n := metricBlocksCount(tfs); n != 0 {
|
|
return fmt.Errorf("expecting zero metric blocks after DeleteMetrics call for tfs=%s; got %d blocks", tfs, n)
|
|
}
|
|
|
|
// Try deleting empty tfss
|
|
deletedCount, err = s.DeleteMetrics(nil)
|
|
if err != nil {
|
|
return fmt.Errorf("cannot delete empty tfss: %s", err)
|
|
}
|
|
if deletedCount != 0 {
|
|
return fmt.Errorf("expecting zero deleted metrics for empty tfss; got %d", deletedCount)
|
|
}
|
|
}
|
|
|
|
// Make sure no more metrics left for the given workerNum
|
|
tfs := NewTagFilters()
|
|
if err := tfs.Add(nil, []byte(fmt.Sprintf("metric_.+_%d", workerNum)), false, true); err != nil {
|
|
return fmt.Errorf("cannot add regexp tag filter for worker metrics: %s", err)
|
|
}
|
|
if n := metricBlocksCount(tfs); n != 0 {
|
|
return fmt.Errorf("expecting zero metric blocks after deleting all the metrics; got %d blocks", n)
|
|
}
|
|
tvs, err = s.SearchTagValues(workerTag, 1e5)
|
|
if err != nil {
|
|
return fmt.Errorf("error in SearchTagValues after all the metrics are removed: %s", err)
|
|
}
|
|
if len(tvs) != 0 {
|
|
return fmt.Errorf("found non-empty tag values for %q after metrics removal: %q", workerTag, tvs)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func checkTagKeys(tks []string, tksExpected map[string]bool) error {
|
|
if len(tks) < len(tksExpected) {
|
|
return fmt.Errorf("unexpected number of tag keys found; got %d; want at least %d; tks=%q, tksExpected=%v", len(tks), len(tksExpected), tks, tksExpected)
|
|
}
|
|
hasItem := func(k string, tks []string) bool {
|
|
for _, kk := range tks {
|
|
if k == kk {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
for k := range tksExpected {
|
|
if !hasItem(k, tks) {
|
|
return fmt.Errorf("cannot find %q in tag keys %q", k, tks)
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func TestStorageAddRows(t *testing.T) {
|
|
path := "TestStorageAddRows"
|
|
s, err := OpenStorage(path, 0)
|
|
if err != nil {
|
|
t.Fatalf("cannot open storage: %s", err)
|
|
}
|
|
t.Run("serial", func(t *testing.T) {
|
|
if err := testStorageAddRows(s); err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
})
|
|
t.Run("concurrent", func(t *testing.T) {
|
|
ch := make(chan error, 3)
|
|
for i := 0; i < cap(ch); i++ {
|
|
go func() {
|
|
ch <- testStorageAddRows(s)
|
|
}()
|
|
}
|
|
for i := 0; i < cap(ch); i++ {
|
|
select {
|
|
case err := <-ch:
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
case <-time.After(3 * time.Second):
|
|
t.Fatalf("timeout")
|
|
}
|
|
}
|
|
})
|
|
s.MustClose()
|
|
if err := os.RemoveAll(path); err != nil {
|
|
t.Fatalf("cannot remove %q: %s", path, err)
|
|
}
|
|
}
|
|
|
|
func testStorageAddRows(s *Storage) error {
|
|
const rowsPerAdd = 1e3
|
|
const addsCount = 10
|
|
|
|
for i := 0; i < addsCount; i++ {
|
|
var mrs []MetricRow
|
|
var mn MetricName
|
|
mn.Tags = []Tag{
|
|
{[]byte("job"), []byte("webservice")},
|
|
{[]byte("instance"), []byte("1.2.3.4")},
|
|
}
|
|
for j := 0; j < rowsPerAdd; j++ {
|
|
mn.MetricGroup = []byte(fmt.Sprintf("metric_%d", rand.Intn(100)))
|
|
metricNameRaw := mn.marshalRaw(nil)
|
|
timestamp := rand.Int63n(1e10)
|
|
value := rand.NormFloat64() * 1e6
|
|
|
|
mr := MetricRow{
|
|
MetricNameRaw: metricNameRaw,
|
|
Timestamp: timestamp,
|
|
Value: value,
|
|
}
|
|
mrs = append(mrs, mr)
|
|
}
|
|
if err := s.AddRows(mrs, defaultPrecisionBits); err != nil {
|
|
return fmt.Errorf("unexpected error when adding mrs: %s", err)
|
|
}
|
|
}
|
|
|
|
// Verify the storage contains rows.
|
|
minRowsExpected := uint64(rowsPerAdd) * addsCount
|
|
var m Metrics
|
|
s.UpdateMetrics(&m)
|
|
if m.TableMetrics.SmallRowsCount < minRowsExpected {
|
|
return fmt.Errorf("expecting at least %d rows in the table; got %d", minRowsExpected, m.TableMetrics.SmallRowsCount)
|
|
}
|
|
|
|
// Try creating a snapshot from the storage.
|
|
snapshotName, err := s.CreateSnapshot()
|
|
if err != nil {
|
|
return fmt.Errorf("cannot create snapshot from the storage: %s", err)
|
|
}
|
|
|
|
// Verify the snapshot is visible
|
|
snapshots, err := s.ListSnapshots()
|
|
if err != nil {
|
|
return fmt.Errorf("cannot list snapshots: %s", err)
|
|
}
|
|
if !containsString(snapshots, snapshotName) {
|
|
return fmt.Errorf("cannot find snapshot %q in %q", snapshotName, snapshots)
|
|
}
|
|
|
|
// Try opening the storage from snapshot.
|
|
snapshotPath := s.path + "/snapshots/" + snapshotName
|
|
s1, err := OpenStorage(snapshotPath, 0)
|
|
if err != nil {
|
|
return fmt.Errorf("cannot open storage from snapshot: %s", err)
|
|
}
|
|
|
|
// Verify the snapshot contains rows
|
|
var m1 Metrics
|
|
s1.UpdateMetrics(&m1)
|
|
if m1.TableMetrics.SmallRowsCount < minRowsExpected {
|
|
return fmt.Errorf("snapshot %q must contain at least %d rows; got %d", snapshotPath, minRowsExpected, m1.TableMetrics.SmallRowsCount)
|
|
}
|
|
|
|
s1.MustClose()
|
|
|
|
// Delete the snapshot and make sure it is no longer visible.
|
|
if err := s.DeleteSnapshot(snapshotName); err != nil {
|
|
return fmt.Errorf("cannot delete snapshot %q: %s", snapshotName, err)
|
|
}
|
|
snapshots, err = s.ListSnapshots()
|
|
if err != nil {
|
|
return fmt.Errorf("cannot list snapshots: %s", err)
|
|
}
|
|
if containsString(snapshots, snapshotName) {
|
|
return fmt.Errorf("snapshot %q must be deleted, but is still visible in %q", snapshotName, snapshots)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func TestStorageRotateIndexDB(t *testing.T) {
|
|
path := "TestStorageRotateIndexDB"
|
|
s, err := OpenStorage(path, 0)
|
|
if err != nil {
|
|
t.Fatalf("cannot open storage: %s", err)
|
|
}
|
|
|
|
// Start indexDB rotater in a separate goroutine
|
|
stopCh := make(chan struct{})
|
|
rotateDoneCh := make(chan struct{})
|
|
go func() {
|
|
for {
|
|
select {
|
|
case <-stopCh:
|
|
close(rotateDoneCh)
|
|
return
|
|
default:
|
|
time.Sleep(time.Millisecond)
|
|
s.mustRotateIndexDB()
|
|
}
|
|
}
|
|
}()
|
|
|
|
// Run concurrent workers that insert / select data from the storage.
|
|
ch := make(chan error, 3)
|
|
for i := 0; i < cap(ch); i++ {
|
|
go func(workerNum int) {
|
|
ch <- testStorageAddMetrics(s, workerNum)
|
|
}(i)
|
|
}
|
|
for i := 0; i < cap(ch); i++ {
|
|
select {
|
|
case err := <-ch:
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %s", err)
|
|
}
|
|
case <-time.After(10 * time.Second):
|
|
t.Fatalf("timeout")
|
|
}
|
|
}
|
|
|
|
close(stopCh)
|
|
<-rotateDoneCh
|
|
|
|
s.MustClose()
|
|
if err := os.RemoveAll(path); err != nil {
|
|
t.Fatalf("cannot remove %q: %s", path, err)
|
|
}
|
|
}
|
|
|
|
func testStorageAddMetrics(s *Storage, workerNum int) error {
|
|
const rowsCount = 1e3
|
|
|
|
var mn MetricName
|
|
mn.Tags = []Tag{
|
|
{[]byte("job"), []byte(fmt.Sprintf("webservice_%d", workerNum))},
|
|
{[]byte("instance"), []byte("1.2.3.4")},
|
|
}
|
|
for i := 0; i < rowsCount; i++ {
|
|
mn.MetricGroup = []byte(fmt.Sprintf("metric_%d_%d", workerNum, rand.Intn(10)))
|
|
metricNameRaw := mn.marshalRaw(nil)
|
|
timestamp := rand.Int63n(1e10)
|
|
value := rand.NormFloat64() * 1e6
|
|
|
|
mr := MetricRow{
|
|
MetricNameRaw: metricNameRaw,
|
|
Timestamp: timestamp,
|
|
Value: value,
|
|
}
|
|
if err := s.AddRows([]MetricRow{mr}, defaultPrecisionBits); err != nil {
|
|
return fmt.Errorf("unexpected error when adding mrs: %s", err)
|
|
}
|
|
}
|
|
|
|
// Verify the storage contains rows.
|
|
minRowsExpected := uint64(rowsCount)
|
|
var m Metrics
|
|
s.UpdateMetrics(&m)
|
|
if m.TableMetrics.SmallRowsCount < minRowsExpected {
|
|
return fmt.Errorf("expecting at least %d rows in the table; got %d", minRowsExpected, m.TableMetrics.SmallRowsCount)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func containsString(a []string, s string) bool {
|
|
for i := range a {
|
|
if a[i] == s {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|