influxdb/tsdb/engine/tsm1/compact_test.go

962 lines
22 KiB
Go

package tsm1_test
import (
"fmt"
"os"
"path/filepath"
"testing"
"time"
"github.com/influxdb/influxdb/models"
"github.com/influxdb/influxdb/tsdb/engine/tsm1"
)
// Tests compacting a Cache snapshot into a single TSM file
func TestCompactor_Snapshot(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
v1 := tsm1.NewValue(time.Unix(1, 0), float64(1))
v2 := tsm1.NewValue(time.Unix(1, 0), float64(1))
v3 := tsm1.NewValue(time.Unix(2, 0), float64(2))
points1 := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v1},
"cpu,host=B#!~#value": []tsm1.Value{v2, v3},
}
c := tsm1.NewCache(0)
for k, v := range points1 {
if err := c.Write(k, v); err != nil {
t.Fatalf("failed to write key foo to cache: %s", err.Error())
}
}
compactor := &tsm1.Compactor{
Dir: dir,
FileStore: &fakeFileStore{},
}
files, err := compactor.WriteSnapshot(c)
if err != nil {
t.Fatalf("unexpected error writing snapshot: %v", err)
}
if got, exp := len(files), 1; got != exp {
t.Fatalf("files length mismatch: got %v, exp %v", got, exp)
}
r := MustOpenTSMReader(files[0])
keys := r.Keys()
if got, exp := len(keys), 2; got != exp {
t.Fatalf("keys length mismatch: got %v, exp %v", got, exp)
}
var data = []struct {
key string
points []tsm1.Value
}{
{"cpu,host=A#!~#value", []tsm1.Value{v1}},
{"cpu,host=B#!~#value", []tsm1.Value{v2, v3}},
}
for _, p := range data {
values, err := r.ReadAll(p.key)
if err != nil {
t.Fatalf("unexpected error reading: %v", err)
}
if got, exp := len(values), len(p.points); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
for i, point := range p.points {
assertValueEqual(t, values[i], point)
}
}
}
// Ensures that a compaction will properly merge multiple TSM files
func TestCompactor_Compact(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
// write 3 TSM files with different data and one new point
a1 := tsm1.NewValue(time.Unix(1, 0), 1.1)
writes := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{a1},
}
f1 := MustWriteTSM(dir, 1, writes)
a2 := tsm1.NewValue(time.Unix(2, 0), 1.2)
b1 := tsm1.NewValue(time.Unix(1, 0), 2.1)
writes = map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{a2},
"cpu,host=B#!~#value": []tsm1.Value{b1},
}
f2 := MustWriteTSM(dir, 2, writes)
a3 := tsm1.NewValue(time.Unix(1, 0), 1.3)
c1 := tsm1.NewValue(time.Unix(1, 0), 3.1)
writes = map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{a3},
"cpu,host=C#!~#value": []tsm1.Value{c1},
}
f3 := MustWriteTSM(dir, 3, writes)
compactor := &tsm1.Compactor{
Dir: dir,
FileStore: &fakeFileStore{},
}
files, err := compactor.Compact([]string{f1, f2, f3})
if err != nil {
t.Fatalf("unexpected error writing snapshot: %v", err)
}
if got, exp := len(files), 1; got != exp {
t.Fatalf("files length mismatch: got %v, exp %v", got, exp)
}
expGen, expSeq, err := tsm1.ParseTSMFileName(f3)
if err != nil {
t.Fatalf("unexpected error parsing file name: %v", err)
}
expSeq = expSeq + 1
gotGen, gotSeq, err := tsm1.ParseTSMFileName(files[0])
if err != nil {
t.Fatalf("unexpected error parsing file name: %v", err)
}
if gotGen != expGen {
t.Fatalf("wrong generation for new file: got %v, exp %v", gotGen, expGen)
}
if gotSeq != expSeq {
t.Fatalf("wrong sequence for new file: got %v, exp %v", gotSeq, expSeq)
}
r := MustOpenTSMReader(files[0])
keys := r.Keys()
if got, exp := len(keys), 3; got != exp {
t.Fatalf("keys length mismatch: got %v, exp %v", got, exp)
}
var data = []struct {
key string
points []tsm1.Value
}{
{"cpu,host=A#!~#value", []tsm1.Value{a3, a2}},
{"cpu,host=B#!~#value", []tsm1.Value{b1}},
{"cpu,host=C#!~#value", []tsm1.Value{c1}},
}
for _, p := range data {
values, err := r.ReadAll(p.key)
if err != nil {
t.Fatalf("unexpected error reading: %v", err)
}
if got, exp := len(values), len(p.points); got != exp {
t.Fatalf("values length mismatch %s: got %v, exp %v", p.key, got, exp)
}
for i, point := range p.points {
assertValueEqual(t, values[i], point)
}
}
}
// Tests that a single TSM file can be read and iterated over
func TestTSMKeyIterator_Single(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
v1 := tsm1.NewValue(time.Unix(1, 0), 1.1)
writes := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v1},
}
r := MustTSMReader(dir, 1, writes)
iter, err := tsm1.NewTSMKeyIterator(1, r)
if err != nil {
t.Fatalf("unexpected error creating WALKeyIterator: %v", err)
}
var readValues bool
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, "cpu,host=A#!~#value"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), len(writes); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
for _, v := range values {
readValues = true
assertValueEqual(t, v, v1)
}
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
// Tests that a single TSM file can be read and iterated over
func TestTSMKeyIterator_Chunked(t *testing.T) {
t.Skip("fixme")
dir := MustTempDir()
defer os.RemoveAll(dir)
v0 := tsm1.NewValue(time.Unix(1, 0), 1.1)
v1 := tsm1.NewValue(time.Unix(2, 0), 2.1)
writes := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v0, v1},
}
r := MustTSMReader(dir, 1, writes)
iter, err := tsm1.NewTSMKeyIterator(1, r)
if err != nil {
t.Fatalf("unexpected error creating WALKeyIterator: %v", err)
}
var readValues bool
var chunk int
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, "cpu,host=A#!~#value"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), len(writes); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
for _, v := range values {
readValues = true
assertValueEqual(t, v, writes["cpu,host=A#!~#value"][chunk])
}
chunk++
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
// Tests that duplicate point values are merged. There is only one case
// where this could happen and that is when a compaction completed and we replace
// the old TSM file with a new one and we crash just before deleting the old file.
// No data is lost but the same point time/value would exist in two files until
// compaction corrects it.
func TestTSMKeyIterator_Duplicate(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
v1 := tsm1.NewValue(time.Unix(1, 0), int64(1))
v2 := tsm1.NewValue(time.Unix(1, 0), int64(2))
writes1 := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v1},
}
r1 := MustTSMReader(dir, 1, writes1)
writes2 := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v2},
}
r2 := MustTSMReader(dir, 1, writes2)
iter, err := tsm1.NewTSMKeyIterator(1, r1, r2)
if err != nil {
t.Fatalf("unexpected error creating WALKeyIterator: %v", err)
}
var readValues bool
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, "cpu,host=A#!~#value"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), 1; got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
readValues = true
assertValueEqual(t, values[0], v2)
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
// Tests that deleted keys are not seen during iteration with
// TSM files.
func TestTSMKeyIterator_MultipleKeysDeleted(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
v1 := tsm1.NewValue(time.Unix(2, 0), int64(1))
points1 := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v1},
}
r1 := MustTSMReader(dir, 1, points1)
r1.Delete([]string{"cpu,host=A#!~#value"})
v2 := tsm1.NewValue(time.Unix(1, 0), float64(1))
v3 := tsm1.NewValue(time.Unix(1, 0), float64(1))
points2 := map[string][]tsm1.Value{
"cpu,host=A#!~#count": []tsm1.Value{v2},
"cpu,host=B#!~#value": []tsm1.Value{v3},
}
r2 := MustTSMReader(dir, 1, points2)
r2.Delete([]string{"cpu,host=A#!~#count"})
iter, err := tsm1.NewTSMKeyIterator(1, r1, r2)
if err != nil {
t.Fatalf("unexpected error creating WALKeyIterator: %v", err)
}
var readValues bool
var data = []struct {
key string
value tsm1.Value
}{
{"cpu,host=B#!~#value", v3},
}
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, data[0].key; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), 1; got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
readValues = true
assertValueEqual(t, values[0], data[0].value)
data = data[1:]
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
func TestCacheKeyIterator_Single(t *testing.T) {
v0 := tsm1.NewValue(time.Unix(1, 0).UTC(), 1.0)
writes := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v0},
}
c := tsm1.NewCache(0)
for k, v := range writes {
if err := c.Write(k, v); err != nil {
t.Fatalf("failed to write key foo to cache: %s", err.Error())
}
}
iter := tsm1.NewCacheKeyIterator(c, 1)
var readValues bool
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, "cpu,host=A#!~#value"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), len(writes); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
for _, v := range values {
readValues = true
assertValueEqual(t, v, v0)
}
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
func TestCacheKeyIterator_Chunked(t *testing.T) {
v0 := tsm1.NewValue(time.Unix(1, 0).UTC(), 1.0)
v1 := tsm1.NewValue(time.Unix(2, 0).UTC(), 2.0)
writes := map[string][]tsm1.Value{
"cpu,host=A#!~#value": []tsm1.Value{v0, v1},
}
c := tsm1.NewCache(0)
for k, v := range writes {
if err := c.Write(k, v); err != nil {
t.Fatalf("failed to write key foo to cache: %s", err.Error())
}
}
iter := tsm1.NewCacheKeyIterator(c, 1)
var readValues bool
var chunk int
for iter.Next() {
key, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error read: %v", err)
}
values, err := tsm1.DecodeBlock(block, nil)
if err != nil {
t.Fatalf("unexpected error decode: %v", err)
}
if got, exp := key, "cpu,host=A#!~#value"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(values), 1; got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
for _, v := range values {
readValues = true
assertValueEqual(t, v, writes["cpu,host=A#!~#value"][chunk])
}
chunk++
}
if !readValues {
t.Fatalf("failed to read any values")
}
}
func TestDefaultCompactionPlanner_Min(t *testing.T) {
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-01.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-1.tsm1",
Size: 251 * 1024 * 1024,
},
}
},
},
MinCompactionFileCount: 5,
}
tsm := cp.Plan(time.Now())
if exp, got := 0, len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
}
// Ensure that if there are older files that can be compacted together but a newer
// file that is in a larger step, the older ones will get compacted.
func TestDefaultCompactionPlanner_CombineSequence(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-03.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "06-02.tsm1",
Size: 67 * 1024 * 1024,
},
tsm1.FileStat{
Path: "07-02.tsm1",
Size: 128 * 1024 * 1024,
},
tsm1.FileStat{
Path: "04-1.tsm1",
Size: 251 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
MinCompactionFileCount: 3,
}
expFiles := []tsm1.FileStat{data[0], data[1], data[2]}
tsm := cp.Plan(time.Now())
if exp, got := len(expFiles), len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
for i, p := range expFiles {
if got, exp := tsm[i], p.Path; got != exp {
t.Fatalf("tsm file mismatch: got %v, exp %v", got, exp)
}
}
}
// Ensure that the planner grabs the smallest compaction step
func TestDefaultCompactionPlanner_SmallestCompactionStep(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 251 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "04-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "05-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "06-01.tsm1",
Size: 1 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
MinCompactionFileCount: 3,
}
expFiles := []tsm1.FileStat{data[1], data[2], data[3], data[4], data[5]}
tsm := cp.Plan(time.Now())
if exp, got := len(expFiles), len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
for i, p := range expFiles {
if got, exp := tsm[i], p.Path; got != exp {
t.Fatalf("tsm file mismatch: got %v, exp %v", got, exp)
}
}
}
// Ensure that the planner will compact all files if no writes
// have happened in some interval
func TestDefaultCompactionPlanner_FullOnCold(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 513 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 129 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-02.tsm1",
Size: 33 * 1024 * 1024,
},
tsm1.FileStat{
Path: "04-02.tsm1",
Size: 1 * 1024 * 1024,
},
tsm1.FileStat{
Path: "05-02.tsm1",
Size: 10 * 1024 * 1024,
},
tsm1.FileStat{
Path: "06-01.tsm1",
Size: 2 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
CompactFullWriteColdDuration: time.Nanosecond,
}
tsm := cp.Plan(time.Now().Add(-time.Second))
if exp, got := len(data), len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
for i, p := range data {
if got, exp := tsm[i], p.Path; got != exp {
t.Fatalf("tsm file mismatch: got %v, exp %v", got, exp)
}
}
}
// Ensure that the planner will compact all files if no writes
// have happened in some interval but skip files already over the limit
func TestDefaultCompactionPlanner_FullSkipMaxSize(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 2049 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 129 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-02.tsm1",
Size: 33 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
CompactFullWriteColdDuration: time.Nanosecond,
}
expFiles := []tsm1.FileStat{data[1], data[2]}
tsm := cp.Plan(time.Now().Add(-time.Second))
if exp, got := len(expFiles), len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
for i, p := range expFiles {
if got, exp := tsm[i], p.Path; got != exp {
t.Fatalf("tsm file mismatch: got %v, exp %v", got, exp)
}
}
}
// Ensure that the planner will not return files that are over the max
// allowable size
func TestDefaultCompactionPlanner_SkipMaxSizeFiles(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 2049 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 2049 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
}
tsm := cp.Plan(time.Now())
if exp, got := 0, len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
}
// Ensure that the planner will not return files that are over the max
// allowable size
func TestDefaultCompactionPlanner_SkipPlanningAfterFull(t *testing.T) {
testSet := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 1024 * 1024,
},
}
getFS := func(set []tsm1.FileStat) *fakeFileStore {
return &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return set
},
}
}
testFileStore := getFS(testSet)
cp := &tsm1.DefaultPlanner{
FileStore: testFileStore,
CompactFullWriteColdDuration: time.Nanosecond,
}
// first verify that our test set would return files
if exp, got := 2, len(cp.Plan(time.Now().Add(-time.Second))); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
// skip planning if all files are over the limit
over := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 2049 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 2049 * 1024 * 1024,
},
}
cp.FileStore = getFS(over)
if exp, got := 0, len(cp.Plan(time.Now().Add(-time.Second))); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
// even though we do this, the planner should remember that last time we were over
cp.FileStore = testFileStore
if exp, got := 0, len(cp.Plan(time.Now().Add(-time.Second))); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
// ensure that it will plan if last modified has changed
testFileStore.lastModified = time.Now()
if exp, got := 2, len(cp.Plan(time.Now())); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
}
// Ensure that the planner will compact files that are past the smallest step
// size even if there is a single file in the smaller step size
func TestDefaultCompactionPlanner_CompactsMiddleSteps(t *testing.T) {
data := []tsm1.FileStat{
tsm1.FileStat{
Path: "01-01.tsm1",
Size: 64 * 1024 * 1024,
},
tsm1.FileStat{
Path: "02-02.tsm1",
Size: 64 * 1024 * 1024,
},
tsm1.FileStat{
Path: "03-02.tsm1",
Size: 64 * 1024 * 1024,
},
tsm1.FileStat{
Path: "04-02.tsm1",
Size: 2 * 1024 * 1024,
},
}
cp := &tsm1.DefaultPlanner{
FileStore: &fakeFileStore{
PathsFn: func() []tsm1.FileStat {
return data
},
},
MinCompactionFileCount: 3,
}
expFiles := []tsm1.FileStat{data[0], data[1], data[2]}
tsm := cp.Plan(time.Now())
if exp, got := len(expFiles), len(tsm); got != exp {
t.Fatalf("tsm file length mismatch: got %v, exp %v", got, exp)
}
for i, p := range expFiles {
if got, exp := tsm[i], p.Path; got != exp {
t.Fatalf("tsm file mismatch: got %v, exp %v", got, exp)
}
}
}
func assertValueEqual(t *testing.T, a, b tsm1.Value) {
if got, exp := a.Time(), b.Time(); !got.Equal(exp) {
t.Fatalf("time mismatch: got %v, exp %v", got, exp)
}
if got, exp := a.Value(), b.Value(); got != exp {
t.Fatalf("value mismatch: got %v, exp %v", got, exp)
}
}
func assertEqual(t *testing.T, a tsm1.Value, b models.Point, field string) {
if got, exp := a.Time(), b.Time(); !got.Equal(exp) {
t.Fatalf("time mismatch: got %v, exp %v", got, exp)
}
if got, exp := a.Value(), b.Fields()[field]; got != exp {
t.Fatalf("value mismatch: got %v, exp %v", got, exp)
}
}
func MustWALSegment(dir string, entries []tsm1.WALEntry) *tsm1.WALSegmentReader {
f := MustTempFile(dir)
w := tsm1.NewWALSegmentWriter(f)
for _, e := range entries {
if err := w.Write(mustMarshalEntry(e)); err != nil {
panic(fmt.Sprintf("write WAL entry: %v", err))
}
}
if _, err := f.Seek(0, os.SEEK_SET); err != nil {
panic(fmt.Sprintf("seek WAL: %v", err))
}
return tsm1.NewWALSegmentReader(f)
}
func MustWriteTSM(dir string, gen int, values map[string][]tsm1.Value) string {
f := MustTempFile(dir)
newName := filepath.Join(filepath.Dir(f.Name()), tsmFileName(gen))
if err := os.Rename(f.Name(), newName); err != nil {
panic(fmt.Sprintf("create tsm file: %v", err))
}
w, err := tsm1.NewTSMWriter(f)
if err != nil {
panic(fmt.Sprintf("create TSM writer: %v", err))
}
for k, v := range values {
if err := w.Write(k, v); err != nil {
panic(fmt.Sprintf("write TSM value: %v", err))
}
}
if err := w.WriteIndex(); err != nil {
panic(fmt.Sprintf("write TSM index: %v", err))
}
if err := w.Close(); err != nil {
panic(fmt.Sprintf("write TSM close: %v", err))
}
return newName
}
func MustTSMReader(dir string, gen int, values map[string][]tsm1.Value) *tsm1.TSMReader {
return MustOpenTSMReader(MustWriteTSM(dir, gen, values))
}
func MustOpenTSMReader(name string) *tsm1.TSMReader {
f, err := os.Open(name)
if err != nil {
panic(fmt.Sprintf("open file: %v", err))
}
r, err := tsm1.NewTSMReaderWithOptions(
tsm1.TSMReaderOptions{
MMAPFile: f,
})
if err != nil {
panic(fmt.Sprintf("new reader: %v", err))
}
return r
}
type fakeWAL struct {
ClosedSegmentsFn func() ([]string, error)
}
func (w *fakeWAL) ClosedSegments() ([]string, error) {
return w.ClosedSegmentsFn()
}
type fakeFileStore struct {
PathsFn func() []tsm1.FileStat
lastModified time.Time
}
func (w *fakeFileStore) Stats() []tsm1.FileStat {
return w.PathsFn()
}
func (w *fakeFileStore) NextGeneration() int {
return 1
}
func (w *fakeFileStore) LastModified() time.Time {
return w.lastModified
}