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profiles.go
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profiles.go
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package blockgen
import (
"context"
"fmt"
"time"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/model/timestamp"
"github.com/prometheus/prometheus/tsdb"
"github.com/thanos-io/thanos/pkg/block/metadata"
"github.com/thanos-io/thanos/pkg/model"
"github.com/thanos-io/thanosbench/pkg/seriesgen"
)
type PlanFn func(ctx context.Context, maxTime model.TimeOrDurationValue, extLset labels.Labels, blockEncoder func(BlockSpec) error) error
type ProfileMap map[string]PlanFn
func (p ProfileMap) Keys() (keys []string) {
for k := range p {
keys = append(keys, k)
}
return keys
}
var (
Profiles = ProfileMap{
// Let's say we have 100 applications, 50 metrics each. All rollout every 1h.
// This makes 2h block to have 15k series, 8h block 45k, 2d block to have 245k series.
"realistic-k8s-2d-small": realisticK8s([]time.Duration{
// Two days, from newest to oldest, in the same way Thanos compactor would do.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
8 * time.Hour,
8 * time.Hour,
8 * time.Hour,
8 * time.Hour,
2 * time.Hour,
}, 1*time.Hour, 100, 50),
"realistic-k8s-1w-small": realisticK8s([]time.Duration{
// One week, from newest to oldest, in the same way Thanos compactor would do.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
8 * time.Hour,
48 * time.Hour,
48 * time.Hour,
48 * time.Hour,
2 * time.Hour,
}, 1*time.Hour, 100, 50),
"realistic-k8s-30d-tiny": realisticK8s([]time.Duration{
// 30 days, from newest to oldest.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
2 * time.Hour,
}, 1*time.Hour, 1, 5),
"realistic-k8s-365d-tiny": realisticK8s([]time.Duration{
// 1y days, from newest to oldest.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
}, 1*time.Hour, 1, 5),
"continuous-1w-small": continuous([]time.Duration{
// One week, from newest to oldest, in the same way Thanos compactor would do.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
8 * time.Hour,
48 * time.Hour,
48 * time.Hour,
48 * time.Hour,
2 * time.Hour,
// 10,000 series per block.
}, 100, 100),
"continuous-30d-tiny": continuous([]time.Duration{
// 30 days, from newest to oldest.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
2 * time.Hour,
}, 1, 5),
"continuous-365d-tiny": continuous([]time.Duration{
// 1y days, from newest to oldest.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
176 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
67 * 24 * time.Hour,
}, 1, 5),
"continuous-1w-1series-10000apps": continuous([]time.Duration{
// One week, from newest to oldest, in the same way Thanos compactor would do.
2 * time.Hour,
2 * time.Hour,
2 * time.Hour,
8 * time.Hour,
8 * time.Hour,
48 * time.Hour,
48 * time.Hour,
48 * time.Hour,
2 * time.Hour,
// 10,000 series per block.
}, 10000, 1),
}
)
func realisticK8s(ranges []time.Duration, rolloutInterval time.Duration, apps int, metricsPerApp int) PlanFn {
return func(ctx context.Context, maxTime model.TimeOrDurationValue, extLset labels.Labels, blockEncoder func(BlockSpec) error) error {
// Align timestamps as Prometheus would do.
maxt := rangeForTimestamp(maxTime.PrometheusTimestamp(), durToMilis(2*time.Hour))
// Track "rollouts". In heavy used K8s we have rollouts e.g every hour if not more. Account for that.
lastRollout := maxt - (durToMilis(rolloutInterval) / 2)
// All our series are gauges.
common := SeriesSpec{
Targets: apps,
Type: Gauge,
Characteristics: seriesgen.Characteristics{
Max: 200000000,
Min: 10000000,
Jitter: 30000000,
ScrapeInterval: 15 * time.Second,
ChangeInterval: 1 * time.Hour,
},
}
for _, r := range ranges {
mint := maxt - durToMilis(r) + 1
b := BlockSpec{
Meta: metadata.Meta{
BlockMeta: tsdb.BlockMeta{
MaxTime: maxt,
MinTime: mint,
Compaction: tsdb.BlockMetaCompaction{Level: 1},
Version: 1,
},
Thanos: metadata.Thanos{
Labels: extLset.Map(),
Downsample: metadata.ThanosDownsample{Resolution: 0},
Source: "blockgen",
},
},
}
for {
if ctx.Err() != nil {
return ctx.Err()
}
smaxt := lastRollout + durToMilis(rolloutInterval)
if smaxt > maxt {
smaxt = maxt
}
smint := lastRollout
if smint < mint {
smint = mint
}
for i := 0; i < metricsPerApp; i++ {
s := common
s.Labels = labels.Labels{
// TODO(bwplotka): Use different label for metricPerApp cardinality and stable number.
{Name: "__name__", Value: fmt.Sprintf("k8s_app_metric%d", i)},
{Name: "next_rollout_time", Value: timestamp.Time(lastRollout).String()},
}
s.MinTime = smint
s.MaxTime = smaxt
b.Series = append(b.Series, s)
}
if lastRollout <= mint {
break
}
lastRollout -= durToMilis(rolloutInterval)
}
if err := blockEncoder(b); err != nil {
return err
}
maxt = mint
}
return nil
}
}
func continuous(ranges []time.Duration, apps int, metricsPerApp int) PlanFn {
return func(ctx context.Context, maxTime model.TimeOrDurationValue, extLset labels.Labels, blockEncoder func(BlockSpec) error) error {
// Align timestamps as Prometheus would do.
maxt := rangeForTimestamp(maxTime.PrometheusTimestamp(), durToMilis(2*time.Hour))
// All our series are gauges.
common := SeriesSpec{
Targets: apps,
Type: Gauge,
Characteristics: seriesgen.Characteristics{
Max: 200000000,
Min: 10000000,
Jitter: 30000000,
ScrapeInterval: 15 * time.Second,
ChangeInterval: 1 * time.Hour,
},
}
for _, r := range ranges {
mint := maxt - durToMilis(r) + 1
if ctx.Err() != nil {
return ctx.Err()
}
b := BlockSpec{
Meta: metadata.Meta{
BlockMeta: tsdb.BlockMeta{
MaxTime: maxt,
MinTime: mint,
Compaction: tsdb.BlockMetaCompaction{Level: 1},
Version: 1,
},
Thanos: metadata.Thanos{
Labels: extLset.Map(),
Downsample: metadata.ThanosDownsample{Resolution: 0},
Source: "blockgen",
},
},
}
for i := 0; i < metricsPerApp; i++ {
s := common
s.Labels = labels.Labels{
{Name: "__name__", Value: fmt.Sprintf("continuous_app_metric%d", i)},
}
s.MinTime = mint
s.MaxTime = maxt
b.Series = append(b.Series, s)
}
if err := blockEncoder(b); err != nil {
return err
}
maxt = mint
}
return nil
}
}
func rangeForTimestamp(t int64, width int64) (maxt int64) {
return (t/width)*width + width
}