mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
1061 lines
30 KiB
Go
1061 lines
30 KiB
Go
// 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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"context"
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"fmt"
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"io/ioutil"
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"math"
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"os"
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"path"
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"path/filepath"
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"testing"
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"time"
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"github.com/go-kit/kit/log"
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"github.com/pkg/errors"
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prom_testutil "github.com/prometheus/client_golang/prometheus/testutil"
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"github.com/prometheus/tsdb/chunks"
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"github.com/prometheus/tsdb/fileutil"
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"github.com/prometheus/tsdb/labels"
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"github.com/prometheus/tsdb/testutil"
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)
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func TestSplitByRange(t *testing.T) {
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cases := []struct {
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trange int64
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ranges [][2]int64
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output [][][2]int64
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}{
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{
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trange: 60,
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ranges: [][2]int64{{0, 10}},
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output: [][][2]int64{
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{{0, 10}},
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},
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},
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{
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trange: 60,
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ranges: [][2]int64{{0, 60}},
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output: [][][2]int64{
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{{0, 60}},
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},
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},
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{
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trange: 60,
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ranges: [][2]int64{{0, 10}, {9, 15}, {30, 60}},
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output: [][][2]int64{
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{{0, 10}, {9, 15}, {30, 60}},
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},
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},
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{
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trange: 60,
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ranges: [][2]int64{{70, 90}, {125, 130}, {130, 180}, {1000, 1001}},
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output: [][][2]int64{
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{{70, 90}},
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{{125, 130}, {130, 180}},
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{{1000, 1001}},
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},
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},
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// Mis-aligned or too-large blocks are ignored.
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{
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trange: 60,
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ranges: [][2]int64{{50, 70}, {70, 80}},
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output: [][][2]int64{
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{{70, 80}},
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},
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},
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{
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trange: 72,
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ranges: [][2]int64{{0, 144}, {144, 216}, {216, 288}},
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output: [][][2]int64{
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{{144, 216}},
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{{216, 288}},
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},
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},
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// Various awkward edge cases easy to hit with negative numbers.
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{
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trange: 60,
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ranges: [][2]int64{{-10, -5}},
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output: [][][2]int64{
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{{-10, -5}},
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},
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},
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{
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trange: 60,
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ranges: [][2]int64{{-60, -50}, {-10, -5}},
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output: [][][2]int64{
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{{-60, -50}, {-10, -5}},
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},
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},
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{
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trange: 60,
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ranges: [][2]int64{{-60, -50}, {-10, -5}, {0, 15}},
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output: [][][2]int64{
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{{-60, -50}, {-10, -5}},
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{{0, 15}},
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},
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},
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}
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for _, c := range cases {
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// Transform input range tuples into dirMetas.
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blocks := make([]dirMeta, 0, len(c.ranges))
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for _, r := range c.ranges {
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blocks = append(blocks, dirMeta{
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meta: &BlockMeta{
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MinTime: r[0],
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MaxTime: r[1],
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},
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})
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}
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// Transform output range tuples into dirMetas.
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exp := make([][]dirMeta, len(c.output))
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for i, group := range c.output {
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for _, r := range group {
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exp[i] = append(exp[i], dirMeta{
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meta: &BlockMeta{MinTime: r[0], MaxTime: r[1]},
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})
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}
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}
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testutil.Equals(t, exp, splitByRange(blocks, c.trange))
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}
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}
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// See https://github.com/prometheus/prometheus/issues/3064
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func TestNoPanicFor0Tombstones(t *testing.T) {
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metas := []dirMeta{
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{
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dir: "1",
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meta: &BlockMeta{
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MinTime: 0,
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MaxTime: 100,
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},
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},
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{
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dir: "2",
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meta: &BlockMeta{
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MinTime: 101,
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MaxTime: 200,
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},
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},
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}
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c, err := NewLeveledCompactor(context.Background(), nil, nil, []int64{50}, nil)
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testutil.Ok(t, err)
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c.plan(metas)
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}
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func TestLeveledCompactor_plan(t *testing.T) {
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// This mimicks our default ExponentialBlockRanges with min block size equals to 20.
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compactor, err := NewLeveledCompactor(context.Background(), nil, nil, []int64{
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20,
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60,
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180,
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540,
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1620,
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}, nil)
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testutil.Ok(t, err)
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cases := map[string]struct {
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metas []dirMeta
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expected []string
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}{
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"Outside Range": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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},
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expected: nil,
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},
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"We should wait for four blocks of size 20 to appear before compacting.": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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},
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expected: nil,
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},
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`We should wait for a next block of size 20 to appear before compacting
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the existing ones. We have three, but we ignore the fresh one from WAl`: {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 40, 60, nil),
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},
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expected: nil,
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},
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"Block to fill the entire parent range appeared – should be compacted": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 40, 60, nil),
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metaRange("4", 60, 80, nil),
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},
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expected: []string{"1", "2", "3"},
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},
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`Block for the next parent range appeared with gap with size 20. Nothing will happen in the first one
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anymore but we ignore fresh one still, so no compaction`: {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 60, 80, nil),
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},
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expected: nil,
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},
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`Block for the next parent range appeared, and we have a gap with size 20 between second and third block.
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We will not get this missed gap anymore and we should compact just these two.`: {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 60, 80, nil),
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metaRange("4", 80, 100, nil),
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},
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expected: []string{"1", "2"},
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},
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"We have 20, 20, 20, 60, 60 range blocks. '5' is marked as fresh one": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 40, 60, nil),
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metaRange("4", 60, 120, nil),
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metaRange("5", 120, 180, nil),
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},
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expected: []string{"1", "2", "3"},
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},
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"We have 20, 60, 20, 60, 240 range blocks. We can compact 20 + 60 + 60": {
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metas: []dirMeta{
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metaRange("2", 20, 40, nil),
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metaRange("4", 60, 120, nil),
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metaRange("5", 960, 980, nil), // Fresh one.
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metaRange("6", 120, 180, nil),
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metaRange("7", 720, 960, nil),
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},
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expected: []string{"2", "4", "6"},
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},
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"Do not select large blocks that have many tombstones when there is no fresh block": {
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metas: []dirMeta{
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metaRange("1", 0, 540, &BlockStats{
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NumSeries: 10,
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NumTombstones: 3,
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}),
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},
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expected: nil,
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},
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"Select large blocks that have many tombstones when fresh appears": {
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metas: []dirMeta{
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metaRange("1", 0, 540, &BlockStats{
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NumSeries: 10,
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NumTombstones: 3,
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}),
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metaRange("2", 540, 560, nil),
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},
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expected: []string{"1"},
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},
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"For small blocks, do not compact tombstones, even when fresh appears.": {
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metas: []dirMeta{
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metaRange("1", 0, 60, &BlockStats{
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NumSeries: 10,
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NumTombstones: 3,
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}),
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metaRange("2", 60, 80, nil),
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},
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expected: nil,
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},
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`Regression test: we were stuck in a compact loop where we always recompacted
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the same block when tombstones and series counts were zero`: {
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metas: []dirMeta{
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metaRange("1", 0, 540, &BlockStats{
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NumSeries: 0,
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NumTombstones: 0,
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}),
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metaRange("2", 540, 560, nil),
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},
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expected: nil,
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},
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`Regression test: we were wrongly assuming that new block is fresh from WAL when its ULID is newest.
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We need to actually look on max time instead.
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With previous, wrong approach "8" block was ignored, so we were wrongly compacting 5 and 7 and introducing
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block overlaps`: {
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metas: []dirMeta{
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metaRange("5", 0, 360, nil),
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metaRange("6", 540, 560, nil), // Fresh one.
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metaRange("7", 360, 420, nil),
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metaRange("8", 420, 540, nil),
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},
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expected: []string{"7", "8"},
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},
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// |--------------|
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// |----------------|
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// |--------------|
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"Overlapping blocks 1": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 19, 40, nil),
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metaRange("3", 40, 60, nil),
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},
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expected: []string{"1", "2"},
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},
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// |--------------|
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// |--------------|
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// |--------------|
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"Overlapping blocks 2": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 30, 50, nil),
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},
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expected: []string{"2", "3"},
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},
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// |--------------|
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// |---------------------|
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// |--------------|
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"Overlapping blocks 3": {
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 10, 40, nil),
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metaRange("3", 30, 50, nil),
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},
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expected: []string{"1", "2", "3"},
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},
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// |--------------|
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// |--------------------------------|
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// |--------------|
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// |--------------|
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"Overlapping blocks 4": {
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metas: []dirMeta{
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metaRange("5", 0, 360, nil),
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metaRange("6", 340, 560, nil),
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metaRange("7", 360, 420, nil),
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metaRange("8", 420, 540, nil),
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},
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expected: []string{"5", "6", "7", "8"},
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},
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// |--------------|
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// |--------------|
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// |--------------|
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// |--------------|
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"Overlapping blocks 5": {
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metas: []dirMeta{
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metaRange("1", 0, 10, nil),
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metaRange("2", 9, 20, nil),
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metaRange("3", 30, 40, nil),
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metaRange("4", 39, 50, nil),
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},
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expected: []string{"1", "2"},
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},
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}
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for title, c := range cases {
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if !t.Run(title, func(t *testing.T) {
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res, err := compactor.plan(c.metas)
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testutil.Ok(t, err)
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testutil.Equals(t, c.expected, res)
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}) {
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return
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}
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}
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}
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||
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func TestRangeWithFailedCompactionWontGetSelected(t *testing.T) {
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compactor, err := NewLeveledCompactor(context.Background(), nil, nil, []int64{
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20,
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60,
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240,
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720,
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2160,
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}, nil)
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testutil.Ok(t, err)
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cases := []struct {
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||
metas []dirMeta
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||
}{
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{
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metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 40, 60, nil),
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metaRange("4", 60, 80, nil),
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},
|
||
},
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{
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||
metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 60, 80, nil),
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metaRange("4", 80, 100, nil),
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},
|
||
},
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{
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||
metas: []dirMeta{
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metaRange("1", 0, 20, nil),
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metaRange("2", 20, 40, nil),
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metaRange("3", 40, 60, nil),
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||
metaRange("4", 60, 120, nil),
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||
metaRange("5", 120, 180, nil),
|
||
metaRange("6", 180, 200, nil),
|
||
},
|
||
},
|
||
}
|
||
|
||
for _, c := range cases {
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||
c.metas[1].meta.Compaction.Failed = true
|
||
res, err := compactor.plan(c.metas)
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||
testutil.Ok(t, err)
|
||
|
||
testutil.Equals(t, []string(nil), res)
|
||
}
|
||
}
|
||
|
||
func TestCompactionFailWillCleanUpTempDir(t *testing.T) {
|
||
compactor, err := NewLeveledCompactor(context.Background(), nil, log.NewNopLogger(), []int64{
|
||
20,
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||
60,
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||
240,
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||
720,
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||
2160,
|
||
}, nil)
|
||
testutil.Ok(t, err)
|
||
|
||
tmpdir, err := ioutil.TempDir("", "test")
|
||
testutil.Ok(t, err)
|
||
defer func() {
|
||
testutil.Ok(t, os.RemoveAll(tmpdir))
|
||
}()
|
||
|
||
testutil.NotOk(t, compactor.write(tmpdir, &BlockMeta{}, erringBReader{}))
|
||
_, err = os.Stat(filepath.Join(tmpdir, BlockMeta{}.ULID.String()) + ".tmp")
|
||
testutil.Assert(t, os.IsNotExist(err), "directory is not cleaned up")
|
||
}
|
||
|
||
func metaRange(name string, mint, maxt int64, stats *BlockStats) dirMeta {
|
||
meta := &BlockMeta{MinTime: mint, MaxTime: maxt}
|
||
if stats != nil {
|
||
meta.Stats = *stats
|
||
}
|
||
return dirMeta{
|
||
dir: name,
|
||
meta: meta,
|
||
}
|
||
}
|
||
|
||
type erringBReader struct{}
|
||
|
||
func (erringBReader) Index() (IndexReader, error) { return nil, errors.New("index") }
|
||
func (erringBReader) Chunks() (ChunkReader, error) { return nil, errors.New("chunks") }
|
||
func (erringBReader) Tombstones() (TombstoneReader, error) { return nil, errors.New("tombstones") }
|
||
func (erringBReader) MinTime() int64 { return 0 }
|
||
func (erringBReader) MaxTime() int64 { return 0 }
|
||
|
||
type nopChunkWriter struct{}
|
||
|
||
func (nopChunkWriter) WriteChunks(chunks ...chunks.Meta) error { return nil }
|
||
func (nopChunkWriter) Close() error { return nil }
|
||
|
||
func TestCompaction_populateBlock(t *testing.T) {
|
||
var populateBlocksCases = []struct {
|
||
title string
|
||
inputSeriesSamples [][]seriesSamples
|
||
compactMinTime int64
|
||
compactMaxTime int64 // When not defined the test runner sets a default of math.MaxInt64.
|
||
expSeriesSamples []seriesSamples
|
||
expErr error
|
||
}{
|
||
{
|
||
title: "Populate block from empty input should return error.",
|
||
inputSeriesSamples: [][]seriesSamples{},
|
||
expErr: errors.New("cannot populate block from no readers"),
|
||
},
|
||
{
|
||
// Populate from single block without chunks. We expect these kind of series being ignored.
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
title: "Populate from single block. We expect the same samples at the output.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
title: "Populate from two blocks.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 1}, {t: 9}}, {{t: 10}, {t: 19}}},
|
||
},
|
||
{
|
||
// no-chunk series should be dropped.
|
||
lset: map[string]string{"a": "empty"},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 21}, {t: 30}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 40}, {t: 45}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}, {{t: 21}, {t: 30}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 1}, {t: 9}}, {{t: 10}, {t: 19}}, {{t: 40}, {t: 45}}},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
title: "Populate from two blocks showing that order is maintained.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 1}, {t: 9}}, {{t: 10}, {t: 19}}},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 21}, {t: 30}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 40}, {t: 45}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}}, {{t: 11}, {t: 20}}, {{t: 21}, {t: 30}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "c"},
|
||
chunks: [][]sample{{{t: 1}, {t: 9}}, {{t: 10}, {t: 19}}, {{t: 40}, {t: 45}}},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
title: "Populate from two blocks showing that order of series is sorted.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "4"},
|
||
chunks: [][]sample{{{t: 5}, {t: 7}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "3"},
|
||
chunks: [][]sample{{{t: 5}, {t: 6}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "same"},
|
||
chunks: [][]sample{{{t: 1}, {t: 4}}},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "2"},
|
||
chunks: [][]sample{{{t: 1}, {t: 3}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "1"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "same"},
|
||
chunks: [][]sample{{{t: 5}, {t: 8}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"a": "1"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "2"},
|
||
chunks: [][]sample{{{t: 1}, {t: 3}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "3"},
|
||
chunks: [][]sample{{{t: 5}, {t: 6}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "4"},
|
||
chunks: [][]sample{{{t: 5}, {t: 7}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"a": "same"},
|
||
chunks: [][]sample{{{t: 1}, {t: 4}}, {{t: 5}, {t: 8}}},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
// This should not happened because head block is making sure the chunks are not crossing block boundaries.
|
||
title: "Populate from single block containing chunk outside of compact meta time range.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}, {{t: 10}, {t: 30}}},
|
||
},
|
||
},
|
||
},
|
||
compactMinTime: 0,
|
||
compactMaxTime: 20,
|
||
expErr: errors.New("found chunk with minTime: 10 maxTime: 30 outside of compacted minTime: 0 maxTime: 20"),
|
||
},
|
||
{
|
||
// Introduced by https://github.com/prometheus/tsdb/issues/347.
|
||
title: "Populate from single block containing extra chunk",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "issue347"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}, {{t: 10}, {t: 20}}},
|
||
},
|
||
},
|
||
},
|
||
compactMinTime: 0,
|
||
compactMaxTime: 10,
|
||
expErr: errors.New("found chunk with minTime: 10 maxTime: 20 outside of compacted minTime: 0 maxTime: 10"),
|
||
},
|
||
{
|
||
// Deduplication expected.
|
||
// Introduced by pull/370 and pull/539.
|
||
title: "Populate from two blocks containing duplicated chunk.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}, {{t: 10}, {t: 20}}},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 10}, {t: 20}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"a": "b"},
|
||
chunks: [][]sample{{{t: 1}, {t: 2}}, {{t: 10}, {t: 20}}},
|
||
},
|
||
},
|
||
},
|
||
{
|
||
// Introduced by https://github.com/prometheus/tsdb/pull/539.
|
||
title: "Populate from three blocks that the last two are overlapping.",
|
||
inputSeriesSamples: [][]seriesSamples{
|
||
{
|
||
{
|
||
lset: map[string]string{"before": "fix"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}, {t: 11}, {t: 20}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"after": "fix"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}, {t: 11}, {t: 20}}},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"before": "fix"},
|
||
chunks: [][]sample{{{t: 19}, {t: 30}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"after": "fix"},
|
||
chunks: [][]sample{{{t: 21}, {t: 30}}},
|
||
},
|
||
},
|
||
{
|
||
{
|
||
lset: map[string]string{"before": "fix"},
|
||
chunks: [][]sample{{{t: 27}, {t: 35}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"after": "fix"},
|
||
chunks: [][]sample{{{t: 27}, {t: 35}}},
|
||
},
|
||
},
|
||
},
|
||
expSeriesSamples: []seriesSamples{
|
||
{
|
||
lset: map[string]string{"after": "fix"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}, {t: 11}, {t: 20}}, {{t: 21}, {t: 27}, {t: 30}, {t: 35}}},
|
||
},
|
||
{
|
||
lset: map[string]string{"before": "fix"},
|
||
chunks: [][]sample{{{t: 0}, {t: 10}, {t: 11}, {t: 19}, {t: 20}, {t: 27}, {t: 30}, {t: 35}}},
|
||
},
|
||
},
|
||
},
|
||
}
|
||
|
||
for _, tc := range populateBlocksCases {
|
||
if ok := t.Run(tc.title, func(t *testing.T) {
|
||
blocks := make([]BlockReader, 0, len(tc.inputSeriesSamples))
|
||
for _, b := range tc.inputSeriesSamples {
|
||
ir, cr, mint, maxt := createIdxChkReaders(t, b)
|
||
blocks = append(blocks, &mockBReader{ir: ir, cr: cr, mint: mint, maxt: maxt})
|
||
}
|
||
|
||
c, err := NewLeveledCompactor(context.Background(), nil, nil, []int64{0}, nil)
|
||
testutil.Ok(t, err)
|
||
|
||
meta := &BlockMeta{
|
||
MinTime: tc.compactMinTime,
|
||
MaxTime: tc.compactMaxTime,
|
||
}
|
||
if meta.MaxTime == 0 {
|
||
meta.MaxTime = math.MaxInt64
|
||
}
|
||
|
||
iw := &mockIndexWriter{}
|
||
err = c.populateBlock(blocks, meta, iw, nopChunkWriter{})
|
||
if tc.expErr != nil {
|
||
testutil.NotOk(t, err)
|
||
testutil.Equals(t, tc.expErr.Error(), err.Error())
|
||
return
|
||
}
|
||
testutil.Ok(t, err)
|
||
|
||
testutil.Equals(t, tc.expSeriesSamples, iw.series)
|
||
|
||
// Check if stats are calculated properly.
|
||
s := BlockStats{
|
||
NumSeries: uint64(len(tc.expSeriesSamples)),
|
||
}
|
||
for _, series := range tc.expSeriesSamples {
|
||
s.NumChunks += uint64(len(series.chunks))
|
||
for _, chk := range series.chunks {
|
||
s.NumSamples += uint64(len(chk))
|
||
}
|
||
}
|
||
testutil.Equals(t, s, meta.Stats)
|
||
}); !ok {
|
||
return
|
||
}
|
||
}
|
||
}
|
||
|
||
func BenchmarkCompaction(b *testing.B) {
|
||
cases := []struct {
|
||
ranges [][2]int64
|
||
compactionType string
|
||
}{
|
||
{
|
||
ranges: [][2]int64{{0, 100}, {200, 300}, {400, 500}, {600, 700}},
|
||
compactionType: "normal",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 1000}, {2000, 3000}, {4000, 5000}, {6000, 7000}},
|
||
compactionType: "normal",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 2000}, {3000, 5000}, {6000, 8000}, {9000, 11000}},
|
||
compactionType: "normal",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 5000}, {6000, 11000}, {12000, 17000}, {18000, 23000}},
|
||
compactionType: "normal",
|
||
},
|
||
// 40% overlaps.
|
||
{
|
||
ranges: [][2]int64{{0, 100}, {60, 160}, {120, 220}, {180, 280}},
|
||
compactionType: "vertical",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 1000}, {600, 1600}, {1200, 2200}, {1800, 2800}},
|
||
compactionType: "vertical",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 2000}, {1200, 3200}, {2400, 4400}, {3600, 5600}},
|
||
compactionType: "vertical",
|
||
},
|
||
{
|
||
ranges: [][2]int64{{0, 5000}, {3000, 8000}, {6000, 11000}, {9000, 14000}},
|
||
compactionType: "vertical",
|
||
},
|
||
}
|
||
|
||
nSeries := 10000
|
||
for _, c := range cases {
|
||
nBlocks := len(c.ranges)
|
||
b.Run(fmt.Sprintf("type=%s,blocks=%d,series=%d,samplesPerSeriesPerBlock=%d", c.compactionType, nBlocks, nSeries, c.ranges[0][1]-c.ranges[0][0]+1), func(b *testing.B) {
|
||
dir, err := ioutil.TempDir("", "bench_compaction")
|
||
testutil.Ok(b, err)
|
||
defer func() {
|
||
testutil.Ok(b, os.RemoveAll(dir))
|
||
}()
|
||
blockDirs := make([]string, 0, len(c.ranges))
|
||
var blocks []*Block
|
||
for _, r := range c.ranges {
|
||
block, err := OpenBlock(nil, createBlock(b, dir, genSeries(nSeries, 10, r[0], r[1])), nil)
|
||
testutil.Ok(b, err)
|
||
blocks = append(blocks, block)
|
||
defer func() {
|
||
testutil.Ok(b, block.Close())
|
||
}()
|
||
blockDirs = append(blockDirs, block.Dir())
|
||
}
|
||
|
||
c, err := NewLeveledCompactor(context.Background(), nil, log.NewNopLogger(), []int64{0}, nil)
|
||
testutil.Ok(b, err)
|
||
|
||
b.ResetTimer()
|
||
b.ReportAllocs()
|
||
_, err = c.Compact(dir, blockDirs, blocks)
|
||
testutil.Ok(b, err)
|
||
})
|
||
}
|
||
}
|
||
|
||
// TestDisableAutoCompactions checks that we can
|
||
// disable and enable the auto compaction.
|
||
// This is needed for unit tests that rely on
|
||
// checking state before and after a compaction.
|
||
func TestDisableAutoCompactions(t *testing.T) {
|
||
db, delete := openTestDB(t, nil)
|
||
defer func() {
|
||
testutil.Ok(t, db.Close())
|
||
delete()
|
||
}()
|
||
|
||
blockRange := DefaultOptions.BlockRanges[0]
|
||
label := labels.FromStrings("foo", "bar")
|
||
|
||
// Trigger a compaction to check that it was skipped and
|
||
// no new blocks were created when compaction is disabled.
|
||
db.DisableCompactions()
|
||
app := db.Appender()
|
||
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)
|
||
}
|
||
testutil.Ok(t, app.Commit())
|
||
|
||
select {
|
||
case db.compactc <- struct{}{}:
|
||
default:
|
||
}
|
||
|
||
for x := 0; x < 10; x++ {
|
||
if prom_testutil.ToFloat64(db.metrics.compactionsSkipped) > 0.0 {
|
||
break
|
||
}
|
||
time.Sleep(10 * time.Millisecond)
|
||
}
|
||
|
||
testutil.Assert(t, prom_testutil.ToFloat64(db.metrics.compactionsSkipped) > 0.0, "No compaction was skipped after the set timeout.")
|
||
testutil.Equals(t, 0, len(db.blocks))
|
||
|
||
// Enable the compaction, trigger it and check that the block is persisted.
|
||
db.EnableCompactions()
|
||
select {
|
||
case db.compactc <- struct{}{}:
|
||
default:
|
||
}
|
||
for x := 0; x < 100; x++ {
|
||
if len(db.Blocks()) > 0 {
|
||
break
|
||
}
|
||
time.Sleep(100 * time.Millisecond)
|
||
}
|
||
testutil.Assert(t, len(db.Blocks()) > 0, "No block was persisted after the set timeout.")
|
||
}
|
||
|
||
// TestCancelCompactions ensures that when the db is closed
|
||
// any running compaction is cancelled to unblock closing the db.
|
||
func TestCancelCompactions(t *testing.T) {
|
||
tmpdir, err := ioutil.TempDir("", "testCancelCompaction")
|
||
testutil.Ok(t, err)
|
||
defer func() {
|
||
testutil.Ok(t, os.RemoveAll(tmpdir))
|
||
}()
|
||
|
||
// Create some blocks to fall within the compaction range.
|
||
createBlock(t, tmpdir, genSeries(10, 10000, 0, 1000))
|
||
createBlock(t, tmpdir, genSeries(10, 10000, 1000, 2000))
|
||
createBlock(t, tmpdir, genSeries(1, 1, 2000, 2001)) // The most recent block is ignored so can be e small one.
|
||
|
||
// Copy the db so we have an exact copy to compare compaction times.
|
||
tmpdirCopy := tmpdir + "Copy"
|
||
err = fileutil.CopyDirs(tmpdir, tmpdirCopy)
|
||
testutil.Ok(t, err)
|
||
defer func() {
|
||
testutil.Ok(t, os.RemoveAll(tmpdirCopy))
|
||
}()
|
||
|
||
// Measure the compaction time without interupting it.
|
||
var timeCompactionUninterrupted time.Duration
|
||
{
|
||
db, err := Open(tmpdir, log.NewNopLogger(), nil, &Options{BlockRanges: []int64{1, 2000}})
|
||
testutil.Ok(t, err)
|
||
testutil.Equals(t, 3, len(db.Blocks()), "initial block count mismatch")
|
||
testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran), "initial compaction counter mismatch")
|
||
db.compactc <- struct{}{} // Trigger a compaction.
|
||
var start time.Time
|
||
for prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.populatingBlocks) <= 0 {
|
||
time.Sleep(3 * time.Millisecond)
|
||
}
|
||
start = time.Now()
|
||
|
||
for prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran) != 1 {
|
||
time.Sleep(3 * time.Millisecond)
|
||
}
|
||
timeCompactionUninterrupted = time.Since(start)
|
||
|
||
testutil.Ok(t, db.Close())
|
||
}
|
||
// Measure the compaction time when closing the db in the middle of compaction.
|
||
{
|
||
db, err := Open(tmpdirCopy, log.NewNopLogger(), nil, &Options{BlockRanges: []int64{1, 2000}})
|
||
testutil.Ok(t, err)
|
||
testutil.Equals(t, 3, len(db.Blocks()), "initial block count mismatch")
|
||
testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran), "initial compaction counter mismatch")
|
||
db.compactc <- struct{}{} // Trigger a compaction.
|
||
dbClosed := make(chan struct{})
|
||
|
||
for prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.populatingBlocks) <= 0 {
|
||
time.Sleep(3 * time.Millisecond)
|
||
}
|
||
go func() {
|
||
testutil.Ok(t, db.Close())
|
||
close(dbClosed)
|
||
}()
|
||
|
||
start := time.Now()
|
||
<-dbClosed
|
||
actT := time.Since(start)
|
||
expT := time.Duration(timeCompactionUninterrupted / 2) // Closing the db in the middle of compaction should less than half the time.
|
||
testutil.Assert(t, actT < expT, "closing the db took more than expected. exp: <%v, act: %v", expT, actT)
|
||
}
|
||
}
|
||
|
||
// TestDeleteCompactionBlockAfterFailedReload ensures that a failed reload immediately after a compaction
|
||
// deletes the resulting block to avoid creatings blocks with the same time range.
|
||
func TestDeleteCompactionBlockAfterFailedReload(t *testing.T) {
|
||
|
||
tests := map[string]func(*DB) int{
|
||
"Test Head Compaction": func(db *DB) int {
|
||
rangeToTriggerCompaction := db.opts.BlockRanges[0]/2*3 - 1
|
||
defaultLabel := labels.FromStrings("foo", "bar")
|
||
|
||
// Add some data to the head that is enough to trigger a compaction.
|
||
app := db.Appender()
|
||
_, err := app.Add(defaultLabel, 1, 0)
|
||
testutil.Ok(t, err)
|
||
_, err = app.Add(defaultLabel, 2, 0)
|
||
testutil.Ok(t, err)
|
||
_, err = app.Add(defaultLabel, 3+rangeToTriggerCompaction, 0)
|
||
testutil.Ok(t, err)
|
||
testutil.Ok(t, app.Commit())
|
||
|
||
return 0
|
||
},
|
||
"Test Block Compaction": func(db *DB) int {
|
||
blocks := []*BlockMeta{
|
||
{MinTime: 0, MaxTime: 100},
|
||
{MinTime: 100, MaxTime: 150},
|
||
{MinTime: 150, MaxTime: 200},
|
||
}
|
||
for _, m := range blocks {
|
||
createBlock(t, db.Dir(), genSeries(1, 1, m.MinTime, m.MaxTime))
|
||
}
|
||
testutil.Ok(t, db.reload())
|
||
testutil.Equals(t, len(blocks), len(db.Blocks()), "unexpected block count after a reload")
|
||
|
||
return len(blocks)
|
||
},
|
||
}
|
||
|
||
for title, bootStrap := range tests {
|
||
t.Run(title, func(t *testing.T) {
|
||
db, delete := openTestDB(t, &Options{
|
||
BlockRanges: []int64{1, 100},
|
||
})
|
||
defer func() {
|
||
testutil.Ok(t, db.Close())
|
||
delete()
|
||
}()
|
||
db.DisableCompactions()
|
||
|
||
expBlocks := bootStrap(db)
|
||
|
||
// Create a block that will trigger the reload to fail.
|
||
blockPath := createBlock(t, db.Dir(), genSeries(1, 1, 200, 300))
|
||
lastBlockIndex := path.Join(blockPath, indexFilename)
|
||
actBlocks, err := blockDirs(db.Dir())
|
||
testutil.Ok(t, err)
|
||
testutil.Equals(t, expBlocks, len(actBlocks)-1) // -1 to exclude the corrupted block.
|
||
testutil.Ok(t, os.RemoveAll(lastBlockIndex)) // Corrupt the block by removing the index file.
|
||
|
||
testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.metrics.reloadsFailed), "initial 'failed db reload' count metrics mismatch")
|
||
testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran), "initial `compactions` count metric mismatch")
|
||
testutil.Equals(t, 0.0, prom_testutil.ToFloat64(db.metrics.compactionsFailed), "initial `compactions failed` count metric mismatch")
|
||
|
||
// Do the compaction and check the metrics.
|
||
// Compaction should succeed, but the reload should fail and
|
||
// the new block created from the compaction should be deleted.
|
||
testutil.NotOk(t, db.compact())
|
||
testutil.Equals(t, 1.0, prom_testutil.ToFloat64(db.metrics.reloadsFailed), "'failed db reload' count metrics mismatch")
|
||
testutil.Equals(t, 1.0, prom_testutil.ToFloat64(db.compactor.(*LeveledCompactor).metrics.ran), "`compaction` count metric mismatch")
|
||
testutil.Equals(t, 1.0, prom_testutil.ToFloat64(db.metrics.compactionsFailed), "`compactions failed` count metric mismatch")
|
||
|
||
actBlocks, err = blockDirs(db.Dir())
|
||
testutil.Ok(t, err)
|
||
testutil.Equals(t, expBlocks, len(actBlocks)-1, "block count should be the same as before the compaction") // -1 to exclude the corrupted block.
|
||
})
|
||
}
|
||
}
|