func TestEncoding_Count(t *testing.T) {
tests := []struct {
value interface{}
blockType byte
}{
{value: float64(1.0), blockType: tsm1.BlockFloat64},
{value: int64(1), blockType: tsm1.BlockInt64},
{value: true, blockType: tsm1.BlockBool},
{value: "string", blockType: tsm1.BlockString},
}
for _, test := range tests {
var values []tsm1.Value
values = append(values, tsm1.NewValue(time.Unix(0, 0), test.value))
b, err := tsm1.Values(values).Encode(nil)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if got, exp := tsm1.BlockCount(b), 1; got != exp {
t.Fatalf("block count 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 cmdDumpTsm1(opts *tsdmDumpOpts) {
var errors []error
f, err := os.Open(opts.path)
if err != nil {
println(err.Error())
os.Exit(1)
}
// Get the file size
stat, err := f.Stat()
if err != nil {
println(err.Error())
os.Exit(1)
}
b := make([]byte, 8)
f.Read(b[:4])
// Verify magic number
if binary.BigEndian.Uint32(b[:4]) != 0x16D116D1 {
println("Not a tsm1 file.")
os.Exit(1)
}
ids, err := readIds(filepath.Dir(opts.path))
if err != nil {
println("Failed to read series:", err.Error())
os.Exit(1)
}
invIds := map[uint64]string{}
for k, v := range ids {
invIds[v] = k
}
index, err := readIndex(f)
if err != nil {
println("Failed to readIndex:", err.Error())
// Create a stubbed out index so we can still try and read the block data directly
// w/o panicing ourselves.
index = &tsmIndex{
minTime: time.Unix(0, 0),
maxTime: time.Unix(0, 0),
offset: stat.Size(),
}
}
blockStats := &blockStats{}
println("Summary:")
fmt.Printf(" File: %s\n", opts.path)
fmt.Printf(" Time Range: %s - %s\n",
index.minTime.UTC().Format(time.RFC3339Nano),
index.maxTime.UTC().Format(time.RFC3339Nano),
)
fmt.Printf(" Duration: %s ", index.maxTime.Sub(index.minTime))
fmt.Printf(" Series: %d ", index.series)
fmt.Printf(" File Size: %d\n", stat.Size())
println()
tw := tabwriter.NewWriter(os.Stdout, 8, 8, 1, '\t', 0)
fmt.Fprintln(tw, " "+strings.Join([]string{"Pos", "ID", "Ofs", "Key", "Field"}, "\t"))
for i, block := range index.blocks {
key := invIds[block.id]
split := strings.Split(key, "#!~#")
// We dont' know know if we have fields so use an informative default
var measurement, field string = "UNKNOWN", "UNKNOWN"
// We read some IDs from the ids file
if len(invIds) > 0 {
// Change the default to error until we know we have a valid key
measurement = "ERR"
field = "ERR"
// Possible corruption? Try to read as much as we can and point to the problem.
if key == "" {
errors = append(errors, fmt.Errorf("index pos %d, field id: %d, missing key for id", i, block.id))
} else if len(split) < 2 {
errors = append(errors, fmt.Errorf("index pos %d, field id: %d, key corrupt: got '%v'", i, block.id, key))
} else {
measurement = split[0]
field = split[1]
}
}
if opts.filterKey != "" && !strings.Contains(key, opts.filterKey) {
continue
}
fmt.Fprintln(tw, " "+strings.Join([]string{
strconv.FormatInt(int64(i), 10),
strconv.FormatUint(block.id, 10),
strconv.FormatInt(int64(block.offset), 10),
measurement,
field,
}, "\t"))
}
if opts.dumpIndex {
println("Index:")
tw.Flush()
println()
}
tw = tabwriter.NewWriter(os.Stdout, 8, 8, 1, '\t', 0)
fmt.Fprintln(tw, " "+strings.Join([]string{"Blk", "Ofs", "Len", "ID", "Type", "Min Time", "Points", "Enc [T/V]", "Len [T/V]"}, "\t"))
// Staring at 4 because the magic number is 4 bytes
i := int64(4)
var blockCount, pointCount, blockSize int64
indexSize := stat.Size() - index.offset
// Start at the beginning and read every block
for i < index.offset {
f.Seek(int64(i), 0)
f.Read(b)
id := btou64(b)
f.Read(b[:4])
length := binary.BigEndian.Uint32(b[:4])
buf := make([]byte, length)
f.Read(buf)
blockSize += int64(len(buf)) + 12
startTime := time.Unix(0, int64(btou64(buf[:8])))
blockType := buf[8]
encoded := buf[9:]
cnt := tsm1.BlockCount(buf)
pointCount += int64(cnt)
// 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 opts.filterKey != "" && !strings.Contains(invIds[id], opts.filterKey) {
i += (12 + int64(length))
blockCount++
continue
}
fmt.Fprintln(tw, " "+strings.Join([]string{
strconv.FormatInt(blockCount, 10),
strconv.FormatInt(i, 10),
strconv.FormatInt(int64(len(buf)), 10),
strconv.FormatUint(id, 10),
typeDesc,
startTime.UTC().Format(time.RFC3339Nano),
strconv.FormatInt(int64(cnt), 10),
fmt.Sprintf("%s/%s", tsEncoding, vEncoding),
fmt.Sprintf("%d/%d", len(ts), len(values)),
}, "\t"))
i += (12 + int64(length))
blockCount++
}
if opts.dumpBlocks {
println("Blocks:")
tw.Flush()
println()
}
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, blockSize/blockCount)
fmt.Printf(" Index:\n")
fmt.Printf(" Total: %d Size: %d\n", len(index.blocks), 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()
}
}