func TestParsePointsWithPrecisionComments(t *testing.T) {
tests := []struct {
name string
batch string
exp string
lenPoints int
}{
{
name: "comment only",
batch: `# comment only`,
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
lenPoints: 0,
},
{
name: "point with comment above",
batch: `# a point is below
cpu,host=serverA,region=us-east value=1.0 946730096789012345`,
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
lenPoints: 1,
},
{
name: "point with comment below",
batch: `cpu,host=serverA,region=us-east value=1.0 946730096789012345
# end of points`,
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
lenPoints: 1,
},
{
name: "indented comment",
batch: ` # a point is below
cpu,host=serverA,region=us-east value=1.0 946730096789012345`,
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
lenPoints: 1,
},
}
for _, test := range tests {
pts, err := tsdb.ParsePointsWithPrecision([]byte(test.batch), time.Now().UTC(), "")
if err != nil {
t.Fatalf(`%s: ParsePoints() failed. got %s`, test.name, err)
}
pointsLength := len(pts)
if exp := test.lenPoints; pointsLength != exp {
t.Errorf("%s: ParsePoint() len mismatch: got %v, exp %v", test.name, pointsLength, exp)
}
if pointsLength > 0 {
pt := pts[0]
got := pt.String()
if got != test.exp {
t.Errorf("%s: ParsePoint() to string mismatch:\n got %v\n exp %v", test.name, got, test.exp)
}
}
}
}
func test(t *testing.T, line string, point tsdb.Point) {
pts, err := tsdb.ParsePointsWithPrecision([]byte(line), time.Unix(0, 0), "n")
if err != nil {
t.Fatalf(`ParsePoints("%s") mismatch. got %v, exp nil`, line, err)
}
if exp := 1; len(pts) != exp {
t.Fatalf(`ParsePoints("%s") len mismatch. got %d, exp %d`, line, len(pts), exp)
}
if exp := point.Key(); !bytes.Equal(pts[0].Key(), exp) {
t.Errorf("ParsePoints(\"%s\") key mismatch.\ngot %v\nexp %v", line, string(pts[0].Key()), string(exp))
}
if exp := len(point.Tags()); len(pts[0].Tags()) != exp {
t.Errorf(`ParsePoints("%s") tags mismatch. got %v, exp %v`, line, pts[0].Tags(), exp)
}
for tag, value := range point.Tags() {
if pts[0].Tags()[tag] != value {
t.Errorf(`ParsePoints("%s") tags mismatch. got %v, exp %v`, line, pts[0].Tags()[tag], value)
}
}
for name, value := range point.Fields() {
val := pts[0].Fields()[name]
expfval, ok := val.(float64)
if ok && math.IsNaN(expfval) {
gotfval, ok := value.(float64)
if ok && !math.IsNaN(gotfval) {
t.Errorf(`ParsePoints("%s") field '%s' mismatch. exp NaN`, line, name)
}
} else if !reflect.DeepEqual(pts[0].Fields()[name], value) {
t.Errorf(`ParsePoints("%s") field '%s' mismatch. got %v, exp %v`, line, name, pts[0].Fields()[name], value)
}
}
if !pts[0].Time().Equal(point.Time()) {
t.Errorf(`ParsePoints("%s") time mismatch. got %v, exp %v`, line, pts[0].Time(), point.Time())
}
if !strings.HasPrefix(pts[0].String(), line) {
t.Errorf("ParsePoints string mismatch.\ngot: %v\nexp: %v", pts[0].String(), line)
}
}
func TestParsePointsWithPrecisionNoTime(t *testing.T) {
line := `cpu,host=serverA,region=us-east value=1.0`
tm, _ := time.Parse(time.RFC3339Nano, "2000-01-01T12:34:56.789012345Z")
tests := []struct {
name string
precision string
exp string
}{
{
name: "no precision",
precision: "",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
},
{
name: "nanosecond precision",
precision: "n",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
},
{
name: "microsecond precision",
precision: "u",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012000",
},
{
name: "millisecond precision",
precision: "ms",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789000000",
},
{
name: "second precision",
precision: "s",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096000000000",
},
{
name: "minute precision",
precision: "m",
exp: "cpu,host=serverA,region=us-east value=1.0 946730040000000000",
},
{
name: "hour precision",
precision: "h",
exp: "cpu,host=serverA,region=us-east value=1.0 946728000000000000",
},
}
for _, test := range tests {
pts, err := tsdb.ParsePointsWithPrecision([]byte(line), tm, test.precision)
if err != nil {
t.Fatalf(`%s: ParsePoints() failed. got %s`, test.name, err)
}
if exp := 1; len(pts) != exp {
t.Errorf("%s: ParsePoint() len mismatch: got %v, exp %v", test.name, len(pts), exp)
}
pt := pts[0]
got := pt.String()
if got != test.exp {
t.Errorf("%s: ParsePoint() to string mismatch:\n got %v\n exp %v", test.name, got, test.exp)
}
}
}
func TestParsePointsWithPrecision(t *testing.T) {
tests := []struct {
name string
line string
precision string
exp string
}{
{
name: "nanosecond by default",
line: `cpu,host=serverA,region=us-east value=1.0 946730096789012345`,
precision: "",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
},
{
name: "nanosecond",
line: `cpu,host=serverA,region=us-east value=1.0 946730096789012345`,
precision: "n",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012345",
},
{
name: "microsecond",
line: `cpu,host=serverA,region=us-east value=1.0 946730096789012`,
precision: "u",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789012000",
},
{
name: "millisecond",
line: `cpu,host=serverA,region=us-east value=1.0 946730096789`,
precision: "ms",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096789000000",
},
{
name: "second",
line: `cpu,host=serverA,region=us-east value=1.0 946730096`,
precision: "s",
exp: "cpu,host=serverA,region=us-east value=1.0 946730096000000000",
},
{
name: "minute",
line: `cpu,host=serverA,region=us-east value=1.0 15778834`,
precision: "m",
exp: "cpu,host=serverA,region=us-east value=1.0 946730040000000000",
},
{
name: "hour",
line: `cpu,host=serverA,region=us-east value=1.0 262980`,
precision: "h",
exp: "cpu,host=serverA,region=us-east value=1.0 946728000000000000",
},
}
for _, test := range tests {
pts, err := tsdb.ParsePointsWithPrecision([]byte(test.line), time.Now().UTC(), test.precision)
if err != nil {
t.Fatalf(`%s: ParsePoints() failed. got %s`, test.name, err)
}
if exp := 1; len(pts) != exp {
t.Errorf("%s: ParsePoint() len mismatch: got %v, exp %v", test.name, len(pts), exp)
}
pt := pts[0]
got := pt.String()
if got != test.exp {
t.Errorf("%s: ParsePoint() to string mismatch:\n got %v\n exp %v", test.name, got, test.exp)
}
}
}
// Ensure points can be written to the engine and queried in reverse order.
func TestEngine_WritePoints_Reverse(t *testing.T) {
e := OpenDefaultEngine()
defer e.Close()
// Create metadata.
mf := &tsdb.MeasurementFields{Fields: make(map[string]*tsdb.Field)}
mf.CreateFieldIfNotExists("value", influxql.Float)
seriesToCreate := []*tsdb.SeriesCreate{
{Series: tsdb.NewSeries(string(tsdb.MakeKey([]byte("temperature"), nil)), nil)},
}
// Parse point.
points, err := tsdb.ParsePointsWithPrecision([]byte("temperature value=100 0"), time.Now().UTC(), "s")
if err != nil {
t.Fatal(err)
} else if data, err := mf.Codec.EncodeFields(points[0].Fields()); err != nil {
t.Fatal(err)
} else {
points[0].SetData(data)
}
// Write original value.
if err := e.WritePoints(points, map[string]*tsdb.MeasurementFields{"temperature": mf}, seriesToCreate); err != nil {
t.Fatal(err)
}
// Flush to disk.
if err := e.Flush(0); err != nil {
t.Fatal(err)
}
// Parse new point.
points, err = tsdb.ParsePointsWithPrecision([]byte("temperature value=200 1"), time.Now().UTC(), "s")
if err != nil {
t.Fatal(err)
} else if data, err := mf.Codec.EncodeFields(points[0].Fields()); err != nil {
t.Fatal(err)
} else {
points[0].SetData(data)
}
// Write the new points existing value.
if err := e.WritePoints(points, nil, nil); err != nil {
t.Fatal(err)
}
// Ensure only the updated value is read.
tx := e.MustBegin(false)
defer tx.Rollback()
c := tx.Cursor("temperature", tsdb.Reverse)
if k, _ := c.Seek(u64tob(math.MaxInt64)); !bytes.Equal(k, u64tob(uint64(time.Unix(1, 0).UnixNano()))) {
t.Fatalf("unexpected key: %v", btou64(k))
} else if k, v := c.Next(); !bytes.Equal(k, u64tob(uint64(time.Unix(0, 0).UnixNano()))) {
t.Fatalf("unexpected key: %#v", k)
} else if m, err := mf.Codec.DecodeFieldsWithNames(v); err != nil {
t.Fatal(err)
} else if m["value"] != float64(100) {
t.Errorf("unexpected value: %#v", m)
}
if k, v := c.Next(); k != nil {
t.Fatalf("unexpected key/value: %#v / %#v", k, v)
}
}
// serveWriteLine receives incoming series data in line protocol format and writes it to the database.
func (h *Handler) serveWriteLine(w http.ResponseWriter, r *http.Request, body []byte, user *meta.UserInfo) {
// Some clients may not set the content-type header appropriately and send JSON with a non-json
// content-type. If the body looks JSON, try to handle it as as JSON instead
if len(body) > 0 {
var i int
for {
// JSON requests must start w/ an opening bracket
if body[i] == '{' {
h.serveWriteJSON(w, r, body, user)
return
}
// check that the byte is in the standard ascii code range
if body[i] > 32 {
break
}
i += 1
}
}
precision := r.FormValue("precision")
if precision == "" {
precision = "n"
}
points, err := tsdb.ParsePointsWithPrecision(body, time.Now().UTC(), precision)
if err != nil {
if err.Error() == "EOF" {
w.WriteHeader(http.StatusOK)
return
}
h.writeError(w, influxql.Result{Err: err}, http.StatusBadRequest)
return
}
database := r.FormValue("db")
if database == "" {
h.writeError(w, influxql.Result{Err: fmt.Errorf("database is required")}, http.StatusBadRequest)
return
}
if di, err := h.MetaStore.Database(database); err != nil {
h.writeError(w, influxql.Result{Err: fmt.Errorf("metastore database error: %s", err)}, http.StatusInternalServerError)
return
} else if di == nil {
h.writeError(w, influxql.Result{Err: fmt.Errorf("database not found: %q", database)}, http.StatusNotFound)
return
}
if h.requireAuthentication && user == nil {
h.writeError(w, influxql.Result{Err: fmt.Errorf("user is required to write to database %q", database)}, http.StatusUnauthorized)
return
}
if h.requireAuthentication && !user.Authorize(influxql.WritePrivilege, database) {
h.writeError(w, influxql.Result{Err: fmt.Errorf("%q user is not authorized to write to database %q", user.Name, database)}, http.StatusUnauthorized)
return
}
// Determine required consistency level.
consistency := cluster.ConsistencyLevelOne
switch r.Form.Get("consistency") {
case "all":
consistency = cluster.ConsistencyLevelAll
case "any":
consistency = cluster.ConsistencyLevelAny
case "one":
consistency = cluster.ConsistencyLevelOne
case "quorum":
consistency = cluster.ConsistencyLevelQuorum
}
// Write points.
if err := h.PointsWriter.WritePoints(&cluster.WritePointsRequest{
Database: database,
RetentionPolicy: r.FormValue("rp"),
ConsistencyLevel: consistency,
Points: points,
}); influxdb.IsClientError(err) {
h.writeError(w, influxql.Result{Err: err}, http.StatusBadRequest)
return
} else if err != nil {
h.writeError(w, influxql.Result{Err: err}, http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}