func TestTSMReader_MMAP_Tombstone(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(0, 1.0)}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.Write("mem", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
if err := r.Delete([]string{"mem"}); err != nil {
t.Fatalf("unexpected error deleting: %v", err)
}
r, err = tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
if got, exp := r.KeyCount(), 1; got != exp {
t.Fatalf("key length mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMReader_Type(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), int64(1))}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
typ, err := r.Type("cpu")
if err != nil {
fatal(t, "reading type", err)
}
if got, exp := typ, tsm1.BlockInteger; got != exp {
t.Fatalf("type mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMWriter_Write_Multiple(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"cpu", []tsm1.Value{tsm1.NewValue(0, 1.0)}},
{"mem", []tsm1.Value{tsm1.NewValue(1, 2.0)}},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
for _, d := range data {
readValues, err := r.ReadAll(d.key)
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(d.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range d.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
}
func TestIndirectIndex_UnmarshalBinary_BlockCountOverflow(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
for i := 0; i < 3280; i++ {
w.Write("cpu", []tsm1.Value{tsm1.NewValue(int64(i), float64(i))})
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
}
func newFiles(values ...keyValues) ([]tsm1.TSMFile, error) {
var files []tsm1.TSMFile
for _, v := range values {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
return nil, err
}
if err := w.Write(v.key, v.values); err != nil {
return nil, err
}
if err := w.WriteIndex(); err != nil {
return nil, err
}
if err := w.Close(); err != nil {
return nil, err
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
return nil, err
}
files = append(files, r)
}
return files, nil
}
func TestTSMReader_MMAP_TombstoneMultipleRanges(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
expValues := []tsm1.Value{
tsm1.NewValue(1, 1.0),
tsm1.NewValue(2, 2.0),
tsm1.NewValue(3, 3.0),
tsm1.NewValue(4, 4.0),
tsm1.NewValue(5, 5.0),
}
if err := w.Write("cpu", expValues); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
if err := r.DeleteRange([]string{"cpu"}, 2, 2); err != nil {
t.Fatalf("unexpected error deleting: %v", err)
}
if err := r.DeleteRange([]string{"cpu"}, 4, 4); err != nil {
t.Fatalf("unexpected error deleting: %v", err)
}
values, err := r.ReadAll("cpu")
if err != nil {
t.Fatalf("unexpected error reading all: %v", err)
}
if got, exp := len(values), 3; got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
}
// Tests that writing keys in reverse is able to read them back.
func TestTSMWriter_Write_SameKey(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"cpu", []tsm1.Value{
tsm1.NewValue(0, 1.0),
tsm1.NewValue(1, 2.0)},
},
{"cpu", []tsm1.Value{
tsm1.NewValue(2, 3.0),
tsm1.NewValue(3, 4.0)},
},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
values := append(data[0].values, data[1].values...)
readValues, err := r.ReadAll("cpu")
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
func TestBlockIterator_Single(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), int64(1))}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
var count int
iter := r.BlockIterator()
for iter.Next() {
key, minTime, maxTime, buf, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error creating iterator: %v", err)
}
if got, exp := key, "cpu"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := minTime, time.Unix(0, 0); got != exp {
t.Fatalf("min time mismatch: got %v, exp %v", got, exp)
}
if got, exp := maxTime, time.Unix(0, 0); got != exp {
t.Fatalf("max time mismatch: got %v, exp %v", got, exp)
}
if len(buf) == 0 {
t.Fatalf("buf length = 0")
}
count++
}
if got, exp := count, len(values); got != exp {
t.Fatalf("value count mismatch: got %v, exp %v", got, exp)
}
}
func MustOpenTSMReader(name string) *tsm1.TSMReader {
f, err := os.Open(name)
if err != nil {
panic(fmt.Sprintf("open file: %v", err))
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
panic(fmt.Sprintf("new reader: %v", err))
}
return r
}
// Ensure that we return an error if we try to open a non-tsm file
func TestTSMReader_VerifiesFileType(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
// write some garbage
f.Write([]byte{0x23, 0xac, 0x99, 0x22, 0x77, 0x23, 0xac, 0x99, 0x22, 0x77, 0x23, 0xac, 0x99, 0x22, 0x77, 0x23, 0xac, 0x99, 0x22, 0x77})
_, err := tsm1.NewTSMReader(f)
if err == nil {
t.Fatal("expected error trying to open non-tsm file")
}
}
func TestCompacted_NotFull(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(0, 1.0)}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
iter := r.BlockIterator()
if !iter.Next() {
t.Fatalf("expected next, got false")
}
_, _, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error reading block: %v", err)
}
if got, exp := tsm1.BlockCount(block), 1; got != exp {
t.Fatalf("block count mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMWriter_Write_Single(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(0, 1.0)}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if got, exp := len(b.Bytes()), 5; got < exp {
t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
}
if got := binary.BigEndian.Uint32(b.Bytes()[0:4]); got != tsm1.MagicNumber {
t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
readValues, err := r.ReadAll("cpu")
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if len(readValues) != len(values) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), len(values))
}
for i, v := range values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
func newFiles(dir string, values ...keyValues) ([]tsm1.TSMFile, error) {
var files []tsm1.TSMFile
id := 1
for _, v := range values {
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
return nil, err
}
if err := w.Write(v.key, v.values); err != nil {
return nil, err
}
if err := w.WriteIndex(); err != nil {
return nil, err
}
if err := w.Close(); err != nil {
return nil, err
}
newName := filepath.Join(filepath.Dir(f.Name()), tsmFileName(id))
if err := os.Rename(f.Name(), newName); err != nil {
return nil, err
}
id++
fd, err := os.Open(newName)
if err != nil {
return nil, err
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
return nil, err
}
files = append(files, r)
}
return files, nil
}
func TestTSMReader_Type(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(0, int64(1))}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error opening: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
typ, err := r.Type("cpu")
if err != nil {
fatal(t, "reading type", err)
}
if got, exp := typ, tsm1.BlockInteger; got != exp {
t.Fatalf("type mismatch: got %v, exp %v", got, exp)
}
}
func TestCompacted_NotFull(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), 1.0)}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
iter := r.BlockIterator()
if !iter.Next() {
t.Fatalf("expected next, got false")
}
_, _, _, block, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error reading block: %v", err)
}
if got, exp := tsm1.BlockCount(block), 1; got != exp {
t.Fatalf("block count mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMReader_MMAP_TombstoneOutsideRange(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
cpuValues := []tsm1.Value{
tsm1.NewValue(1, 1.0),
tsm1.NewValue(2, 2.0),
tsm1.NewValue(3, 3.0),
}
if err := w.Write("cpu", cpuValues); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
memValues := []tsm1.Value{
tsm1.NewValue(1, 1.0),
tsm1.NewValue(2, 2.0),
tsm1.NewValue(30, 3.0),
}
if err := w.Write("mem", memValues); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
if err := r.DeleteRange([]string{"cpu", "mem"}, 5, math.MaxInt64); err != nil {
t.Fatalf("unexpected error deleting: %v", err)
}
defer r.Close()
if got, exp := r.KeyCount(), 2; got != exp {
t.Fatalf("key count mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(r.TombstoneRange("cpu")), 0; got != exp {
t.Fatalf("tombstone range mismatch: got %v, exp %v", got, exp)
}
values, err := r.ReadAll("cpu")
if err != nil {
t.Fatalf("unexpected error reading all: %v", err)
}
if got, exp := len(values), len(cpuValues); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
if got, exp := len(r.TombstoneRange("mem")), 1; got != exp {
t.Fatalf("tombstone range mismatch: got %v, exp %v", got, exp)
}
values, err = r.ReadAll("mem")
if err != nil {
t.Fatalf("unexpected error reading all: %v", err)
}
if got, exp := len(values), len(memValues[:2]); got != exp {
t.Fatalf("values length mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMWriter_WriteBlock_Multiple(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"cpu", []tsm1.Value{tsm1.NewValue(0, 1.0)}},
{"mem", []tsm1.Value{tsm1.NewValue(1, 2.0)}},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
defer fd.Close()
b, err := ioutil.ReadAll(fd)
if err != nil {
t.Fatalf("unexpected error read all: %v", err)
}
if got, exp := len(b), 5; got < exp {
t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
}
if got := binary.BigEndian.Uint32(b[0:4]); got != tsm1.MagicNumber {
t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
}
if _, err := fd.Seek(0, os.SEEK_SET); err != nil {
t.Fatalf("error seeking: %v", err)
}
// Create reader for that file
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
f = MustTempFile(dir)
w, err = tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
iter := r.BlockIterator()
for iter.Next() {
key, minTime, maxTime, _, b, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error reading block: %v", err)
}
if err := w.WriteBlock(key, minTime, maxTime, b); err != nil {
t.Fatalf("unexpected error writing block: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
// Now create a reader to verify the written blocks matches the originally
// written file using Write
r, err = tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
for _, d := range data {
readValues, err := r.ReadAll(d.key)
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(d.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range d.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
}
func TestTSMWriter_Write_Single(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := []tsm1.Value{tsm1.NewValue(0, 1.0)}
if err := w.Write("cpu", values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
b, err := ioutil.ReadAll(fd)
if err != nil {
t.Fatalf("unexpected error reading: %v", err)
}
if got, exp := len(b), 5; got < exp {
t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
}
if got := binary.BigEndian.Uint32(b[0:4]); got != tsm1.MagicNumber {
t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
}
if _, err := fd.Seek(0, os.SEEK_SET); err != nil {
t.Fatalf("unexpected error seeking: %v", err)
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
readValues, err := r.ReadAll("cpu")
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if len(readValues) != len(values) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), len(values))
}
for i, v := range values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
func TestTSMReader_MMAP_Stats(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values1 := []tsm1.Value{tsm1.NewValue(0, 1.0)}
if err := w.Write("cpu", values1); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
values2 := []tsm1.Value{tsm1.NewValue(1, 1.0)}
if err := w.Write("mem", values2); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
stats := r.Stats()
if got, exp := stats.MinKey, "cpu"; got != exp {
t.Fatalf("min key mismatch: got %v, exp %v", got, exp)
}
if got, exp := stats.MaxKey, "mem"; got != exp {
t.Fatalf("max key mismatch: got %v, exp %v", got, exp)
}
if got, exp := stats.MinTime, values1[0].UnixNano(); got != exp {
t.Fatalf("min time mismatch: got %v, exp %v", got, exp)
}
if got, exp := stats.MaxTime, values2[0].UnixNano(); got != exp {
t.Fatalf("max time mismatch: got %v, exp %v", got, exp)
}
if got, exp := r.KeyCount(), 2; got != exp {
t.Fatalf("key length mismatch: got %v, exp %v", got, exp)
}
}
func cmdVerify(path string) {
start := time.Now()
dataPath := filepath.Join(path, "data")
brokenBlocks := 0
totalBlocks := 0
// No need to do this in a loop
ext := fmt.Sprintf(".%s", tsm1.TSMFileExtension)
// Get all TSM files by walking through the data dir
files := []string{}
err := filepath.Walk(dataPath, func(path string, f os.FileInfo, err error) error {
if err != nil {
return err
}
if filepath.Ext(path) == ext {
files = append(files, path)
}
return nil
})
if err != nil {
panic(err)
}
tw := tabwriter.NewWriter(os.Stdout, 16, 8, 0, '\t', 0)
// Verify the checksums of every block in every file
for _, f := range files {
file, err := os.OpenFile(f, os.O_RDONLY, 0600)
if err != nil {
fmt.Printf("%v", err)
os.Exit(1)
}
reader, err := tsm1.NewTSMReader(file)
if err != nil {
fmt.Printf("%v", err)
os.Exit(1)
}
blockItr := reader.BlockIterator()
brokenFileBlocks := 0
count := 0
for blockItr.Next() {
totalBlocks++
key, _, _, checksum, buf, err := blockItr.Read()
if err != nil {
brokenBlocks++
fmt.Fprintf(tw, "%s: could not get checksum for key %v block %d due to error: %q\n", f, key, count, err)
} else if expected := crc32.ChecksumIEEE(buf); checksum != expected {
brokenBlocks++
fmt.Fprintf(tw, "%s: got %d but expected %d for key %v, block %d\n", f, checksum, expected, key, count)
}
count++
}
if brokenFileBlocks == 0 {
fmt.Fprintf(tw, "%s: healthy\n", f)
}
reader.Close()
}
fmt.Fprintf(tw, "Broken Blocks: %d / %d, in %vs\n", brokenBlocks, totalBlocks, time.Since(start).Seconds())
tw.Flush()
}
func TestBlockIterator_Sorted(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := map[string][]tsm1.Value{
"mem": []tsm1.Value{tsm1.NewValue(time.Unix(0, 0), int64(1))},
"cpu": []tsm1.Value{tsm1.NewValue(time.Unix(1, 0), float64(2))},
"disk": []tsm1.Value{tsm1.NewValue(time.Unix(1, 0), true)},
"load": []tsm1.Value{tsm1.NewValue(time.Unix(1, 0), "string")},
}
for k, v := range values {
if err := w.Write(k, v); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
var count int
iter := r.BlockIterator()
var lastKey string
for iter.Next() {
key, _, _, buf, err := iter.Read()
if key < lastKey {
t.Fatalf("keys not sorted: got %v, last %v", key, lastKey)
}
lastKey = key
if err != nil {
t.Fatalf("unexpected error creating iterator: %v", err)
}
if len(buf) == 0 {
t.Fatalf("buf length = 0")
}
count++
}
if got, exp := count, len(values); got != exp {
t.Fatalf("value count mismatch: got %v, exp %v", got, exp)
}
}
func TestBlockIterator_MultipleBlocks(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values1 := []tsm1.Value{tsm1.NewValue(0, int64(1))}
if err := w.Write("cpu", values1); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
values2 := []tsm1.Value{tsm1.NewValue(1, int64(2))}
if err := w.Write("cpu", values2); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error opening: %v", err)
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
var count int
expData := []tsm1.Values{values1, values2}
iter := r.BlockIterator()
var i int
for iter.Next() {
key, minTime, maxTime, _, buf, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error creating iterator: %v", err)
}
if got, exp := key, "cpu"; got != exp {
t.Fatalf("key mismatch: got %v, exp %v", got, exp)
}
if got, exp := minTime, expData[i][0].UnixNano(); got != exp {
t.Fatalf("min time mismatch: got %v, exp %v", got, exp)
}
if got, exp := maxTime, expData[i][0].UnixNano(); got != exp {
t.Fatalf("max time mismatch: got %v, exp %v", got, exp)
}
if len(buf) == 0 {
t.Fatalf("buf length = 0")
}
count++
i++
}
if got, exp := count, 2; got != exp {
t.Fatalf("value count mismatch: got %v, exp %v", got, exp)
}
}
func TestTSMReader_MMAP_ReadAll(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
defer f.Close()
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"float", []tsm1.Value{
tsm1.NewValue(1, 1.0)},
},
{"int", []tsm1.Value{
tsm1.NewValue(1, int64(1))},
},
{"bool", []tsm1.Value{
tsm1.NewValue(1, true)},
},
{"string", []tsm1.Value{
tsm1.NewValue(1, "foo")},
},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error writing index: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
f, err = os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error open file: %v", err)
}
r, err := tsm1.NewTSMReader(f)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
defer r.Close()
var count int
for _, d := range data {
readValues, err := r.ReadAll(d.key)
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(d.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range d.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
count++
}
if got, exp := count, len(data); got != exp {
t.Fatalf("read values count mismatch: got %v, exp %v", got, exp)
}
}
func (c *cmdExport) writeFiles() error {
// open our output file and create an output buffer
var w io.WriteCloser
w, err := os.Create(c.out)
if err != nil {
return err
}
defer w.Close()
if c.compress {
w = gzip.NewWriter(w)
}
// Write out all the DDL
fmt.Fprintln(w, "# DDL")
for key := range c.files {
keys := strings.Split(key, string(byte(os.PathSeparator)))
fmt.Fprintf(w, "CREATE DATABASE %s\n", keys[0])
fmt.Fprintf(w, "CREATE RETENTION POLICY %s ON %s DURATION inf REPLICATION 1\n", keys[1], keys[0])
}
fmt.Fprintln(w, "# DML")
for key, files := range c.files {
keys := strings.Split(key, string(byte(os.PathSeparator)))
fmt.Fprintf(w, "# CONTEXT-DATABASE:%s\n", keys[0])
fmt.Fprintf(w, "# CONTEXT-RETENTION-POLICY:%s\n", keys[1])
for _, f := range files {
// use an anonymous function here to close the files in the defers and not let them
// accumulate in the loop
if err := func(f string) error {
file, err := os.OpenFile(f, os.O_RDONLY, 0600)
if err != nil {
return fmt.Errorf("%v", err)
}
defer file.Close()
reader, err := tsm1.NewTSMReader(file)
if err != nil {
log.Printf("unable to read %s, skipping\n", f)
return nil
}
defer reader.Close()
for i := 0; i < reader.KeyCount(); i++ {
var pairs string
key, typ := reader.KeyAt(i)
values, _ := reader.ReadAll(key)
measurement, field := tsm1.SeriesAndFieldFromCompositeKey(key)
for _, value := range values {
switch typ {
case tsm1.BlockFloat64:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
case tsm1.BlockInteger:
pairs = field + "=" + fmt.Sprintf("%vi", value.Value())
case tsm1.BlockBoolean:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
case tsm1.BlockString:
pairs = field + "=" + fmt.Sprintf("%q", models.EscapeStringField(fmt.Sprintf("%s", value.Value())))
default:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
}
fmt.Fprintln(w, measurement, pairs, value.UnixNano())
}
}
return nil
}(f); err != nil {
return err
}
}
_ = key
}
return nil
}
func cmdReport(opts *reportOpts) {
start := time.Now()
files, err := filepath.Glob(filepath.Join(opts.dir, fmt.Sprintf("*.%s", tsm1.TSMFileExtension)))
if err != nil {
fmt.Printf("%v\n", err)
os.Exit(1)
}
var filtered []string
if opts.pattern != "" {
for _, f := range files {
if strings.Contains(f, opts.pattern) {
filtered = append(filtered, f)
}
}
files = filtered
}
if len(files) == 0 {
fmt.Printf("no tsm files at %v\n", opts.dir)
os.Exit(1)
}
tw := tabwriter.NewWriter(os.Stdout, 8, 8, 1, '\t', 0)
fmt.Fprintln(tw, strings.Join([]string{"File", "Series", "Load Time"}, "\t"))
totalSeries := hllpp.New()
tagCardialities := map[string]*hllpp.HLLPP{}
measCardinalities := map[string]*hllpp.HLLPP{}
fieldCardinalities := map[string]*hllpp.HLLPP{}
ordering := make([]chan struct{}, 0, len(files))
for range files {
ordering = append(ordering, make(chan struct{}))
}
for _, f := range files {
file, err := os.OpenFile(f, os.O_RDONLY, 0600)
if err != nil {
fmt.Fprintf(os.Stderr, "error: %s: %v. Skipping.\n", f, err)
continue
}
loadStart := time.Now()
reader, err := tsm1.NewTSMReader(file)
if err != nil {
fmt.Fprintf(os.Stderr, "error: %s: %v. Skipping.\n", file.Name(), err)
continue
}
loadTime := time.Since(loadStart)
seriesCount := reader.KeyCount()
for i := 0; i < seriesCount; i++ {
key, _ := reader.KeyAt(i)
totalSeries.Add([]byte(key))
if opts.detailed {
sep := strings.Index(key, "#!~#")
seriesKey, field := key[:sep], key[sep+4:]
measurement, tags, _ := models.ParseKey(seriesKey)
measCount, ok := measCardinalities[measurement]
if !ok {
measCount = hllpp.New()
measCardinalities[measurement] = measCount
}
measCount.Add([]byte(key))
fieldCount, ok := fieldCardinalities[measurement]
if !ok {
fieldCount = hllpp.New()
fieldCardinalities[measurement] = fieldCount
}
fieldCount.Add([]byte(field))
for t, v := range tags {
tagCount, ok := tagCardialities[t]
if !ok {
tagCount = hllpp.New()
tagCardialities[t] = tagCount
}
tagCount.Add([]byte(v))
}
}
}
reader.Close()
fmt.Fprintln(tw, strings.Join([]string{
filepath.Base(file.Name()),
strconv.FormatInt(int64(seriesCount), 10),
loadTime.String(),
}, "\t"))
tw.Flush()
}
tw.Flush()
println()
fmt.Printf("Statistics\n")
fmt.Printf(" Series:\n")
fmt.Printf(" Total (est): %d\n", totalSeries.Count())
if opts.detailed {
fmt.Printf(" Measurements (est):\n")
for t, card := range measCardinalities {
fmt.Printf(" %v: %d (%d%%)\n", t, card.Count(), int((float64(card.Count())/float64(totalSeries.Count()))*100))
}
fmt.Printf(" Fields (est):\n")
for t, card := range fieldCardinalities {
fmt.Printf(" %v: %d\n", t, card.Count())
}
fmt.Printf(" Tags (est):\n")
for t, card := range tagCardialities {
fmt.Printf(" %v: %d\n", t, card.Count())
}
}
fmt.Printf("Completed in %s\n", time.Since(start))
}
func TestBlockIterator_Sorted(t *testing.T) {
dir := MustTempDir()
defer os.RemoveAll(dir)
f := MustTempFile(dir)
w, err := tsm1.NewTSMWriter(f)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
values := map[string][]tsm1.Value{
"mem": []tsm1.Value{tsm1.NewValue(0, int64(1))},
"cpu": []tsm1.Value{tsm1.NewValue(1, float64(2))},
"disk": []tsm1.Value{tsm1.NewValue(1, true)},
"load": []tsm1.Value{tsm1.NewValue(1, "string")},
}
for k, v := range values {
if err := w.Write(k, v); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
fd, err := os.Open(f.Name())
if err != nil {
t.Fatalf("unexpected error opening: %v", err)
}
r, err := tsm1.NewTSMReader(fd)
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
var count int
iter := r.BlockIterator()
var lastKey string
for iter.Next() {
key, _, _, _, buf, err := iter.Read()
if key < lastKey {
t.Fatalf("keys not sorted: got %v, last %v", key, lastKey)
}
lastKey = key
if err != nil {
t.Fatalf("unexpected error creating iterator: %v", err)
}
if len(buf) == 0 {
t.Fatalf("buf length = 0")
}
count++
}
if got, exp := count, len(values); got != exp {
t.Fatalf("value count mismatch: got %v, exp %v", got, exp)
}
}
// Tests that calling Read returns all the values for block matching the key
// and timestamp
func TestTSMWriter_Read_Multiple(t *testing.T) {
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"cpu", []tsm1.Value{
tsm1.NewValue(0, 1.0),
tsm1.NewValue(1, 2.0)},
},
{"cpu", []tsm1.Value{
tsm1.NewValue(2, 3.0),
tsm1.NewValue(3, 4.0)},
},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
for _, values := range data {
// Try the first timestamp
readValues, err := r.Read("cpu", values.values[0].UnixNano())
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(values.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range values.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
// Try the last timestamp too
readValues, err = r.Read("cpu", values.values[1].UnixNano())
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(values.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range values.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
}
func TestTSMWriter_WriteBlock_Multiple(t *testing.T) {
// Write a new TSM file
var b bytes.Buffer
w, err := tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
var data = []struct {
key string
values []tsm1.Value
}{
{"cpu", []tsm1.Value{tsm1.NewValue(0, 1.0)}},
{"mem", []tsm1.Value{tsm1.NewValue(1, 2.0)}},
}
for _, d := range data {
if err := w.Write(d.key, d.values); err != nil {
t.Fatalf("unexpected error writing: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if got, exp := len(b.Bytes()), 5; got < exp {
t.Fatalf("file size mismatch: got %v, exp %v", got, exp)
}
if got := binary.BigEndian.Uint32(b.Bytes()[0:4]); got != tsm1.MagicNumber {
t.Fatalf("magic number mismatch: got %v, exp %v", got, tsm1.MagicNumber)
}
// Create reader for that file
r, err := tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
// Using the reader, write a new file using WriteBlocks
b.Reset()
w, err = tsm1.NewTSMWriter(&b)
if err != nil {
t.Fatalf("unexpected error creating writer: %v", err)
}
iter := r.BlockIterator()
for iter.Next() {
key, minTime, maxTime, b, err := iter.Read()
if err != nil {
t.Fatalf("unexpected error reading block: %v", err)
}
if err := w.WriteBlock(key, minTime, maxTime, b); err != nil {
t.Fatalf("unexpected error writing block: %v", err)
}
}
if err := w.WriteIndex(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
if err := w.Close(); err != nil {
t.Fatalf("unexpected error closing: %v", err)
}
// Now create a reader to verify the written blocks matches the originally
// written file using Write
r, err = tsm1.NewTSMReader(bytes.NewReader(b.Bytes()))
if err != nil {
t.Fatalf("unexpected error created reader: %v", err)
}
for _, d := range data {
readValues, err := r.ReadAll(d.key)
if err != nil {
t.Fatalf("unexpected error readin: %v", err)
}
if exp := len(d.values); exp != len(readValues) {
t.Fatalf("read values length mismatch: got %v, exp %v", len(readValues), exp)
}
for i, v := range d.values {
if v.Value() != readValues[i].Value() {
t.Fatalf("read value mismatch(%d): got %v, exp %d", i, readValues[i].Value(), v.Value())
}
}
}
}
func (cmd *Command) dump() error {
var errors []error
f, err := os.Open(cmd.path)
if err != nil {
return err
}
// Get the file size
stat, err := f.Stat()
if err != nil {
return err
}
b := make([]byte, 8)
r, err := tsm1.NewTSMReader(f)
if err != nil {
return fmt.Errorf("Error opening TSM files: %s", err.Error())
}
defer r.Close()
minTime, maxTime := r.TimeRange()
keyCount := r.KeyCount()
blockStats := &blockStats{}
println("Summary:")
fmt.Printf(" File: %s\n", cmd.path)
fmt.Printf(" Time Range: %s - %s\n",
time.Unix(0, minTime).UTC().Format(time.RFC3339Nano),
time.Unix(0, maxTime).UTC().Format(time.RFC3339Nano),
)
fmt.Printf(" Duration: %s ", time.Unix(0, maxTime).Sub(time.Unix(0, minTime)))
fmt.Printf(" Series: %d ", keyCount)
fmt.Printf(" File Size: %d\n", stat.Size())
println()
tw := tabwriter.NewWriter(cmd.Stdout, 8, 8, 1, '\t', 0)
if cmd.dumpIndex {
println("Index:")
tw.Flush()
println()
fmt.Fprintln(tw, " "+strings.Join([]string{"Pos", "Min Time", "Max Time", "Ofs", "Size", "Key", "Field"}, "\t"))
var pos int
for i := 0; i < keyCount; i++ {
key, _ := r.KeyAt(i)
for _, e := range r.Entries(string(key)) {
pos++
split := strings.Split(string(key), "#!~#")
// We dont' know know if we have fields so use an informative default
var measurement, field string = "UNKNOWN", "UNKNOWN"
// Possible corruption? Try to read as much as we can and point to the problem.
measurement = split[0]
field = split[1]
if cmd.filterKey != "" && !strings.Contains(string(key), cmd.filterKey) {
continue
}
fmt.Fprintln(tw, " "+strings.Join([]string{
strconv.FormatInt(int64(pos), 10),
time.Unix(0, e.MinTime).UTC().Format(time.RFC3339Nano),
time.Unix(0, e.MaxTime).UTC().Format(time.RFC3339Nano),
strconv.FormatInt(int64(e.Offset), 10),
strconv.FormatInt(int64(e.Size), 10),
measurement,
field,
}, "\t"))
tw.Flush()
}
}
}
tw = tabwriter.NewWriter(cmd.Stdout, 8, 8, 1, '\t', 0)
fmt.Fprintln(tw, " "+strings.Join([]string{"Blk", "Chk", "Ofs", "Len", "Type", "Min Time", "Points", "Enc [T/V]", "Len [T/V]"}, "\t"))
// Starting at 5 because the magic number is 4 bytes + 1 byte version
i := int64(5)
var blockCount, pointCount, blockSize int64
indexSize := r.IndexSize()
// Start at the beginning and read every block
for j := 0; j < keyCount; j++ {
key, _ := r.KeyAt(j)
for _, e := range r.Entries(string(key)) {
f.Seek(int64(e.Offset), 0)
f.Read(b[:4])
chksum := binary.BigEndian.Uint32(b[:4])
buf := make([]byte, e.Size-4)
f.Read(buf)
blockSize += int64(e.Size)
if cmd.filterKey != "" && !strings.Contains(string(key), cmd.filterKey) {
i += blockSize
blockCount++
continue
}
blockType := buf[0]
encoded := buf[1:]
var v []tsm1.Value
v, err := tsm1.DecodeBlock(buf, v)
if err != nil {
return err
}
startTime := time.Unix(0, v[0].UnixNano())
pointCount += int64(len(v))
// Length of the timestamp block
tsLen, j := binary.Uvarint(encoded)
// Unpack the timestamp bytes
ts := encoded[int(j) : int(j)+int(tsLen)]
// Unpack the value bytes
values := encoded[int(j)+int(tsLen):]
tsEncoding := timeEnc[int(ts[0]>>4)]
vEncoding := encDescs[int(blockType+1)][values[0]>>4]
typeDesc := blockTypes[blockType]
blockStats.inc(0, ts[0]>>4)
blockStats.inc(int(blockType+1), values[0]>>4)
blockStats.size(len(buf))
if cmd.dumpBlocks {
fmt.Fprintln(tw, " "+strings.Join([]string{
strconv.FormatInt(blockCount, 10),
strconv.FormatUint(uint64(chksum), 10),
strconv.FormatInt(i, 10),
strconv.FormatInt(int64(len(buf)), 10),
typeDesc,
startTime.UTC().Format(time.RFC3339Nano),
strconv.FormatInt(int64(len(v)), 10),
fmt.Sprintf("%s/%s", tsEncoding, vEncoding),
fmt.Sprintf("%d/%d", len(ts), len(values)),
}, "\t"))
}
i += blockSize
blockCount++
}
}
if cmd.dumpBlocks {
println("Blocks:")
tw.Flush()
println()
}
var blockSizeAvg int64
if blockCount > 0 {
blockSizeAvg = blockSize / blockCount
}
fmt.Printf("Statistics\n")
fmt.Printf(" Blocks:\n")
fmt.Printf(" Total: %d Size: %d Min: %d Max: %d Avg: %d\n",
blockCount, blockSize, blockStats.min, blockStats.max, blockSizeAvg)
fmt.Printf(" Index:\n")
fmt.Printf(" Total: %d Size: %d\n", blockCount, indexSize)
fmt.Printf(" Points:\n")
fmt.Printf(" Total: %d", pointCount)
println()
println(" Encoding:")
for i, counts := range blockStats.counts {
if len(counts) == 0 {
continue
}
fmt.Printf(" %s: ", strings.Title(fieldType[i]))
for j, v := range counts {
fmt.Printf("\t%s: %d (%d%%) ", encDescs[i][j], v, int(float64(v)/float64(blockCount)*100))
}
println()
}
fmt.Printf(" Compression:\n")
fmt.Printf(" Per block: %0.2f bytes/point\n", float64(blockSize)/float64(pointCount))
fmt.Printf(" Total: %0.2f bytes/point\n", float64(stat.Size())/float64(pointCount))
if len(errors) > 0 {
println()
fmt.Printf("Errors (%d):\n", len(errors))
for _, err := range errors {
fmt.Printf(" * %v\n", err)
}
println()
return fmt.Errorf("error count %d", len(errors))
}
return nil
}
func (cmd *Command) writeTsmFiles(w io.WriteCloser, files []string) error {
fmt.Fprintln(w, "# writing tsm data")
// we need to make sure we write the same order that the files were written
sort.Strings(files)
// use a function here to close the files in the defers and not let them accumulate in the loop
write := func(f string) error {
file, err := os.OpenFile(f, os.O_RDONLY, 0600)
if err != nil {
return fmt.Errorf("%v", err)
}
defer file.Close()
reader, err := tsm1.NewTSMReader(file)
if err != nil {
log.Printf("unable to read %s, skipping\n", f)
return nil
}
defer reader.Close()
if sgStart, sgEnd := reader.TimeRange(); sgStart > cmd.endTime || sgEnd < cmd.startTime {
return nil
}
for i := 0; i < reader.KeyCount(); i++ {
var pairs string
key, typ := reader.KeyAt(i)
values, _ := reader.ReadAll(string(key))
measurement, field := tsm1.SeriesAndFieldFromCompositeKey(key)
for _, value := range values {
if (value.UnixNano() < cmd.startTime) || (value.UnixNano() > cmd.endTime) {
continue
}
switch typ {
case tsm1.BlockFloat64:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
case tsm1.BlockInteger:
pairs = field + "=" + fmt.Sprintf("%vi", value.Value())
case tsm1.BlockBoolean:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
case tsm1.BlockString:
pairs = field + "=" + fmt.Sprintf("%q", models.EscapeStringField(fmt.Sprintf("%s", value.Value())))
default:
pairs = field + "=" + fmt.Sprintf("%v", value.Value())
}
fmt.Fprintln(w, string(measurement), pairs, value.UnixNano())
}
}
return nil
}
for _, f := range files {
if err := write(f); err != nil {
return err
}
}
return nil
}