func (t *Tsdb) sendData() {
counter := 0
bytesSent := 0
last := time.Now()
ticker := time.NewTicker(time.Second * 10)
for {
select {
case <-ticker.C:
if counter > 0 {
log.Info("published %d (%d bytes) payloads in last %f seconds", counter, bytesSent, time.Since(last).Seconds())
counter = 0
bytesSent = 0
last = time.Now()
}
case data := <-t.dataChan:
u := t.Url.String() + data.Path
body := new(bytes.Buffer)
snappyBody := snappy.NewWriter(body)
snappyBody.Write(data.Body)
snappyBody.Close()
req, err := http.NewRequest("POST", u, body)
if err != nil {
log.Error(3, "failed to create request payload. ", err)
break
}
req.Header.Set("Content-Type", "rt-metric-binary-snappy")
req.Header.Set("Authorization", "Bearer "+t.ApiKey)
var reqBytesSent int
sent := false
for !sent {
reqBytesSent = body.Len()
if err := send(req); err != nil {
log.Error(3, err.Error())
time.Sleep(time.Second)
body.Reset()
snappyBody := snappy.NewWriter(body)
snappyBody.Write(data.Body)
snappyBody.Close()
} else {
sent = true
log.Debug("sent %d bytes", reqBytesSent)
}
}
bytesSent += reqBytesSent
counter++
}
}
}
func (c *snappyCompressor) Do(w io.Writer, p []byte) error {
sw := snappy.NewWriter(w)
if _, err := sw.Write(p); err != nil {
return err
}
return sw.Close()
}
// NewSnappyResponseWriter returns a `http.ResponseWriter` wrapper which can encode
// the output with Snappy if requested by the client.
// If snappy isn't enabled, it will act like a regular `http.ResponseWriter`
// `Close` must be call so the `*snappy.Writer` instance can be put back in the `sync.Pool`
func NewSnappyResponseWriter(rw http.ResponseWriter, r *http.Request) *snappyResponseWriter {
var s *snappy.Writer
// Set the necessary `Vary` header
rw.Header().Set("Vary", "Accept-Encoding")
// Disable caching of responses.
rw.Header().Set("Cache-control", "no-cache")
var writer io.Writer
switch r.Header.Get("Accept-Encoding") {
case "snappy":
rw.Header().Set("Content-Encoding", "snappy")
// Try to get a snappy.Writer from the pool
if is := snappyWriterPool.Get(); is != nil {
s = is.(*snappy.Writer)
s.Reset(rw)
} else {
// Creates a new one if the pool is empty
s = snappy.NewWriter(rw)
}
writer = s
default:
// No `Accept-Encoding` header (or unsupported)
// Default to plain-text
writer = rw
}
return &snappyResponseWriter{
snappyWriter: s,
rw: rw,
w: writer,
}
}
func snappy_compress(chunk []byte, n int) []byte {
var buf bytes.Buffer
writer := snappy.NewWriter(&buf)
writer.Write(chunk[:n])
return buf.Bytes()
}
func (f *File) encode(o interface{}) (bs []byte, err error) {
buf := new(bytes.Buffer)
if f.compressMethod == _COMPRESS_SNAPPY {
w := snappy.NewWriter(buf)
if f.codec == _CODEC_GOB {
err = gob.NewEncoder(w).Encode(o)
} else if f.codec == _CODEC_MSGPACK {
err = msgpack.NewEncoder(w).Encode(o)
}
if err != nil {
return nil, err
}
err = w.Close()
if err != nil {
return nil, err
}
} else {
if f.codec == _CODEC_GOB {
err = gob.NewEncoder(buf).Encode(o)
} else if f.codec == _CODEC_MSGPACK {
err = msgpack.NewEncoder(buf).Encode(o)
}
if err != nil {
return nil, err
}
}
return buf.Bytes(), nil
}
func actionDump(c *cli.Context) {
verbose := c.Bool(dumpFlagVerbose.Name)
compress := c.Bool(dumpFlagCompress.Name)
cd := c.String(dumpFlagCrashDir.Name)
pid := c.Int(dumpFlagPid.Name)
when := time.Unix(int64(c.Int(dumpFlagTime.Name)), 0)
sig := c.Int(dumpFlagSig.Name)
exe := c.String(dumpFlagExe.Name)
// Make sure that we are using a sensible umask.
oldMask := syscall.Umask(0000)
defer syscall.Umask(oldMask)
cd = filepath.Join(cd, exe, when.Format(time.RFC3339), fmt.Sprint(pid))
if err := os.MkdirAll(cd, 0755); err != nil {
fmt.Fprintf(dumpOutputWriter, "Failed to create crash directory %s [%s]\n", cd, err)
}
ci := csi.CrashInspector{}
if cr, err := ci.Inspect(pid, syscall.Signal(sig)); err != nil {
fmt.Fprintf(dumpOutputWriter, "Failed to gather crash meta data [%s]\n", err)
} else {
if b, err := yaml.Marshal(cr); err != nil {
fmt.Fprintf(dumpOutputWriter, "Failed to write crash meta data [%s]\n", err)
} else {
ry := filepath.Join(cd, "report.yaml")
if f, err := os.Create(ry); err != nil {
fmt.Fprintf(dumpOutputWriter, "Failed to dump crash report to %s [%s]\n", ry, err)
} else {
defer f.Close()
fmt.Fprintf(f, "%s", b)
}
}
}
// And we finally dump the actual core file
df := filepath.Join(cd, "core")
if f, err := os.Create(df); err != nil {
fmt.Fprintf(dumpOutputWriter, "Failed to dump core to %s [%s]", df, err)
} else {
defer f.Close()
// TODO(tvoss): Investigate into syscall.Sendfile and figure out a way
// to avoid copying of data to userspace.
var dest io.Writer = f
if compress {
dest = snappy.NewWriter(f)
}
start := time.Now()
n, _ := io.Copy(dest, os.Stdin)
elapsed := time.Since(start)
if verbose {
fmt.Fprintf(dumpOutputWriter, "Wrote %d bytes of core dump to %s in %f seconds", n, df, elapsed.Seconds())
}
}
}
func snap(arr []byte) ([]byte, error) {
w := bytes.NewBuffer(nil)
sw := snappy.NewWriter(w)
_, e := sw.Write(arr)
if e != nil {
return nil, e
}
return w.Bytes(), nil
}
func do(isDecompress bool, filename, suffix string, isToStdout bool) (percentage, speed float64, err error) {
var (
input io.Reader
output io.Writer
outName string = "-"
)
if filename == "-" {
input = os.Stdin
output = os.Stdout
} else {
fi, err := os.Open(filename)
if err != nil {
return 0, 0, err
}
input = fi
defer fi.Close()
if isToStdout {
output = os.Stdout
} else {
if isDecompress {
if !strings.HasSuffix(filename, suffix) {
err = errors.New(fmt.Sprintf("file: %s not has suffix %s", filename, suffix))
return 0, 0, err
}
outName = filename[:(len(filename) - len(suffix))]
} else {
outName = filename + suffix
}
fo, err := os.Create(outName)
if err != nil {
return 0, 0, err
}
output = fo
defer fo.Close()
}
}
start := time.Now()
rwc := NewRWCounter(input, output)
if isDecompress {
_, err = io.Copy(rwc, snappy.NewReader(rwc))
} else {
_, err = io.Copy(snappy.NewWriter(rwc), rwc)
}
useTime := time.Since(start).Seconds()
if isDecompress {
percentage = 1 - float64(rwc.CountR())/float64(rwc.CountW())
speed = float64(rwc.CountW()) / 1024.0 / 1024.0 / useTime
} else {
percentage = 1 - float64(rwc.CountW())/float64(rwc.CountR())
speed = float64(rwc.CountR()) / 1024.0 / 1024.0 / useTime
}
return
}
// Store sends a batch of samples to the HTTP endpoint.
func (c *Client) Store(samples model.Samples) error {
req := &WriteRequest{
Timeseries: make([]*TimeSeries, 0, len(samples)),
}
for _, s := range samples {
ts := &TimeSeries{
Labels: make([]*LabelPair, 0, len(s.Metric)),
}
for k, v := range s.Metric {
ts.Labels = append(ts.Labels,
&LabelPair{
Name: string(k),
Value: string(v),
})
}
ts.Samples = []*Sample{
{
Value: float64(s.Value),
TimestampMs: int64(s.Timestamp),
},
}
req.Timeseries = append(req.Timeseries, ts)
}
data, err := proto.Marshal(req)
if err != nil {
return err
}
buf := bytes.Buffer{}
if _, err := snappy.NewWriter(&buf).Write(data); err != nil {
return err
}
httpReq, err := http.NewRequest("POST", c.url.String(), &buf)
if err != nil {
return err
}
httpReq.Header.Add("Content-Encoding", "snappy")
ctx, _ := context.WithTimeout(context.Background(), c.timeout)
httpResp, err := ctxhttp.Do(ctx, c.client, httpReq)
if err != nil {
return err
}
defer httpResp.Body.Close()
if httpResp.StatusCode/100 != 2 {
return fmt.Errorf("server returned HTTP status %s", httpResp.Status)
}
return nil
}
func (s *Store) flushBuffer() (err error) {
if s.currentWriter == nil {
return fmt.Errorf("Flush without a current buffer")
}
log.Printf("Flushing updates for %s to disk\n", *s.currentFilename)
sw := snappy.NewWriter(s.currentWriter)
_, err = s.buf.WriteTo(sw)
if err != nil {
return
}
s.buf.Reset()
return
}
func (c *Conn) upgradeSnappy() error {
conn := net.Conn(c.conn)
if c.tlsConn != nil {
conn = c.tlsConn
}
c.r = snappy.NewReader(conn)
c.w = snappy.NewWriter(conn)
frameType, data, err := ReadUnpackedResponse(c)
if err != nil {
return err
}
if frameType != FrameTypeResponse || !bytes.Equal(data, []byte("OK")) {
return errors.New("invalid response from Snappy upgrade")
}
return nil
}
func (m *mergeSorter) dumpShard() (err error) {
defer func() {
m.buffer = make([]interface{}, 0, m.opts.MaxInMemory)
}()
// Create a new shard file
shardPath := filepath.Join(m.workDir, fmt.Sprintf("shard.%.6d", len(m.shards)))
file, err := os.OpenFile(shardPath, os.O_WRONLY|os.O_CREATE|os.O_EXCL, shardFileMode)
if err != nil {
return fmt.Errorf("error creating shard: %v", err)
}
defer func() {
replaceErrIfNil(&err, "error closing shard: %v", file.Close())
}()
w := io.Writer(file)
if m.opts.CompressShards {
w = snappy.NewWriter(w)
}
// Buffer writing to the shard
buf := bufio.NewWriterSize(w, m.opts.IOBufferSize)
defer func() {
replaceErrIfNil(&err, "error flushing shard: %v", buf.Flush())
}()
// Sort the in-memory buffer of elements
sortutil.Sort(m.opts.Lesser, m.buffer)
// Write each element of the in-memory to shard file, in sorted order
wr := delimited.NewWriter(buf)
for len(m.buffer) > 0 {
rec, err := m.opts.Marshaler.Marshal(m.buffer[0])
if err != nil {
return fmt.Errorf("marshaling error: %v", err)
}
if _, err := wr.Write(rec); err != nil {
return fmt.Errorf("writing error: %v", err)
}
m.buffer = m.buffer[1:]
}
m.shards = append(m.shards, shardPath)
return nil
}
// Compress a file to a snappy archive.
func snap(src *os.File) (dst *os.File, err error) {
// Remember to re-open the destination file after compression.
defer func() {
dst, err = os.Open(dst.Name())
}()
// Get file info.
srcInfo, err := src.Stat()
if err != nil {
return
}
srcName := src.Name()
// Make sure existing files are not overwritten.
dstName := concat(srcName, ".sz")
getUnusedFilename(&dstName)
print(concat(srcName, " > ", dstName))
// Create the destination file.
dst, err = create(dstName, srcInfo.Mode())
if err != nil {
return
}
// Set up a *passthru writer in order to print progress.
pt := &passthru{
Writer: dst,
nExpected: uint64(srcInfo.Size()),
}
defer pt.Reset()
// Wrap a *snappy.Writer around the *passthru method.
sz := snappy.NewWriter(pt)
defer sz.Reset(nil)
// Write the source file's contents to the new snappy file.
_, err = snapCopy(sz, src)
print()
if err != nil {
return
}
return
}
func (e *defaultPageEncoder) compress(p []byte) ([]byte, error) {
var compressed bytes.Buffer // TODO get from a buffer pool
switch e.compression {
case "gzip":
w := gzip.NewWriter(&compressed)
if _, err := w.Write(p); err != nil {
return nil, err
}
case "snappy":
wc := snappy.NewWriter(&compressed)
if _, err := wc.Write(p); err != nil {
return nil, err
}
case "":
return p, nil
default:
log.Println("defaultPageEncoder: warning unknown compression codec.")
}
return compressed.Bytes(), nil
}
func FuzzFraming(data []byte) int {
r := snappy.NewReader(bytes.NewReader(data))
buf := make([]byte, 0, 1023)
dec := make([]byte, 0, 1024)
for i := 0; ; i++ {
x := i
if x > cap(buf) {
x = cap(buf)
}
n, err := r.Read(buf[:x])
if n != 0 {
dec = append(dec, buf[:n]...)
}
if err == io.EOF {
break
}
if err != nil {
return 0
}
}
r.Reset(bytes.NewReader(data))
dec1, err := ioutil.ReadAll(r)
if err != nil {
panic(err)
}
if bytes.Compare(dec, dec1) != 0 {
fmt.Printf("dec0: %q\n", dec)
fmt.Printf("dec1: %q\n", dec1)
panic("not equal")
}
bufw := new(bytes.Buffer)
w := snappy.NewBufferedWriter(bufw)
for i := 0; len(dec1) > 0; i++ {
x := i
if x > len(dec1) {
x = len(dec1)
}
n, err := w.Write(dec1[:x])
if n != x {
panic("short write")
}
if err != nil {
panic(err)
}
dec1 = dec1[x:]
if (i % 2) != 0 {
w.Flush()
}
}
w.Close()
dec1 = append([]byte{}, dec...)
bufw2 := new(bytes.Buffer)
w2 := snappy.NewWriter(bufw2)
for i := 2; len(dec1) > 0; i++ {
x := i
if x > len(dec1) {
x = len(dec1)
}
n, err := w2.Write(dec1[:x])
if n != x {
panic("short write")
}
if err != nil {
panic(err)
}
dec1 = dec1[x:]
if (i % 2) != 0 {
w2.Flush()
}
}
w2.Close()
r2 := snappy.NewReader(bufw)
dec2, err := ioutil.ReadAll(r2)
if err != nil {
panic(err)
}
if bytes.Compare(dec, dec2) != 0 {
panic("not equal")
}
r3 := snappy.NewReader(bufw2)
dec3, err := ioutil.ReadAll(r3)
if err != nil {
panic(err)
}
if bytes.Compare(dec, dec3) != 0 {
panic("not equal")
}
return 1
}
func progd_forword(ar cmdoptS) {
//create metadata leveldb
dbi, err := bolt.Open(ar.out_dir+"/md", 0600, nil)
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
tx, err := dbi.Begin(true)
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
defer tx.Rollback()
db, err := tx.CreateBucket([]byte("Ketv1"))
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
//generate crypto nonce
nonce, _ := GenerateRandomBytes(24)
//store it
err = db.Put([]byte("nonce"), nonce)
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
//calc key
keyhasher := sha3.NewShake256()
keyhasher.Write(nonce)
keyhasher.Write([]byte(ar.secret_key))
xchachakey := make([]byte, 32)
keyhasher.Read(xchachakey)
poly1305key := make([]byte, 32)
keyhasher.Read(poly1305key)
//init stream
var LimitedSizeWriteToFilei LimitedSizeWriteToFile
LimitedSizeWriteToFilei.InitNow()
LimitedSizeWriteToFilei.TargetPatten = ar.out_dir + "/df%X"
if !ar.div_unitk {
LimitedSizeWriteToFilei.BytesPerFile = int64(ar.div_at) * const_Mbyte
} else {
LimitedSizeWriteToFilei.BytesPerFile = int64(ar.div_at) * const_Kbyte
}
cryptos, err := chacha20.NewXChaCha(xchachakey, nonce)
HashWriter := sha3.NewShake256()
CyDWriter := io.MultiWriter(LimitedSizeWriteToFilei, HashWriter)
Data_writer := NewEncryptedWriter(cryptos, CyDWriter)
CompressedStream := snappy.NewWriter(Data_writer)
TarStream := tar.NewWriter(CompressedStream)
GenFileList(ar.in_dir)
for id := range rfi {
filedes, err := os.Open(ar.in_dir + "/" + rfi[id])
if err != nil {
fmt.Println("Failed to open file " + rfi[id] + ":" + err.Error())
}
filein, _ := filedes.Stat()
hdr := &tar.Header{
Name: rfi[id],
Mode: 0600,
Size: filein.Size(),
}
if err := TarStream.WriteHeader(hdr); err != nil {
log.Fatalln(err)
}
_, err = io.Copy(TarStream, filedes)
if err != nil {
fmt.Println("Failed to Write file " + rfi[id] + ":" + err.Error())
}
filedes.Close()
}
if err := TarStream.Close(); err != nil {
log.Fatalln(err)
}
_, _, nd := LimitedSizeWriteToFilei.Finialize()
FileHash := make([]byte, 64)
HashWriter.Read(FileHash)
var poly1305sum [16]byte
var poly1305sum_key [32]byte
copy(poly1305sum_key[:], poly1305key)
poly1305.Sum(&poly1305sum, FileHash, &poly1305sum_key)
err = db.Put([]byte("poly1305sum"), poly1305sum[:])
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
bb := new(bytes.Buffer)
binary.Write(bb, binary.LittleEndian, nd)
err = db.Put([]byte("packagesum"), bb.Bytes())
if err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
//we won't use it anymore
if err := tx.Commit(); err != nil {
fmt.Println(err.Error())
os.Exit(-1)
}
dbi.Close()
//finially we call par2 to compute reconstruction data
if ar.parrate != 0 {
_, err := exec.LookPath("par2")
if err != nil {
fmt.Println("Unable to whereis par2, reconstruction data compute was ignored:" + err.Error())
}
DirIf, _ := os.Open(ar.out_dir)
DirIfs, _ := DirIf.Readdirnames(-1)
cmdargs := []string{"c", "-a", "mdpp", "-r" + strconv.Itoa(ar.parrate), "-v", "--"}
cmdargs = append(cmdargs, DirIfs...)
cmd := exec.Command("par2", cmdargs...)
cmd.Stdout = os.Stdout
Absp, _ := filepath.Abs(ar.out_dir)
cmd.Dir = Absp
err = cmd.Start()
if err != nil {
fmt.Println("Unable to exec par2, reconstruction data compute was ignored:" + err.Error())
}
err = cmd.Wait()
if err != nil {
fmt.Println("par2 was finished unsuccessfully, reconstruction data compute was ignored(or failed):" + err.Error())
}
}
fmt.Printf("Hash: %x\n", FileHash)
fmt.Printf("Key: %s\n", ar.secret_key)
}