mirror of
https://github.com/prometheus/prometheus.git
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Optionally translate OTEL histograms to NHCB
Signed-off-by: Carrie Edwards <edwrdscarrie@gmail.com>
This commit is contained in:
Carrie Edwards
parent
39d7242cfe
commit
5489b67f7a
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@ -1442,6 +1442,7 @@ type OTLPConfig struct {
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PromoteResourceAttributes []string `yaml:"promote_resource_attributes,omitempty"`
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TranslationStrategy translationStrategyOption `yaml:"translation_strategy,omitempty"`
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KeepIdentifyingResourceAttributes bool `yaml:"keep_identifying_resource_attributes,omitempty"`
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ConvertHistogramsToNHCB bool `yaml:"convert_histograms_to_nhcb,omitempty"`
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}
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// UnmarshalYAML implements the yaml.Unmarshaler interface.
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@ -402,10 +402,11 @@ type Histogram struct {
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ResetHint Histogram_ResetHint `protobuf:"varint,14,opt,name=reset_hint,json=resetHint,proto3,enum=prometheus.Histogram_ResetHint" json:"reset_hint,omitempty"`
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// timestamp is in ms format, see model/timestamp/timestamp.go for
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// conversion from time.Time to Prometheus timestamp.
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Timestamp int64 `protobuf:"varint,15,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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Timestamp int64 `protobuf:"varint,15,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
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CustomValues []float64 `protobuf:"fixed64,16,rep,packed,name=custom_values,json=customValues,proto3" json:"custom_values,omitempty"`
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XXX_NoUnkeyedLiteral struct{} `json:"-"`
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XXX_unrecognized []byte `json:"-"`
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XXX_sizecache int32 `json:"-"`
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}
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func (m *Histogram) Reset() { *m = Histogram{} }
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@ -588,6 +589,13 @@ func (m *Histogram) GetTimestamp() int64 {
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return 0
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}
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func (m *Histogram) GetCustomValues() []float64 {
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if m != nil {
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return m.CustomValues
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}
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return nil
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}
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// XXX_OneofWrappers is for the internal use of the proto package.
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func (*Histogram) XXX_OneofWrappers() []interface{} {
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return []interface{}{
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@ -1146,76 +1154,77 @@ func init() {
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func init() { proto.RegisterFile("types.proto", fileDescriptor_d938547f84707355) }
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var fileDescriptor_d938547f84707355 = []byte{
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// 1092 bytes of a gzipped FileDescriptorProto
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// 1114 bytes of a gzipped FileDescriptorProto
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|
||||
0xc1, 0x63, 0x85, 0x11, 0x1b, 0x0c, 0xb1, 0xf4, 0xb1, 0x8e, 0x46, 0xd5, 0x92, 0xdc, 0x03, 0x53,
|
||||
0x4c, 0xe6, 0xdc, 0x67, 0x78, 0x6a, 0xdb, 0x34, 0xb5, 0xc8, 0x23, 0x68, 0xfe, 0xc8, 0xe3, 0x70,
|
||||
0x2c, 0xe7, 0x31, 0x17, 0xf3, 0x70, 0x31, 0xc5, 0x13, 0xd4, 0x68, 0x43, 0xa1, 0xa3, 0x0c, 0x24,
|
||||
0x1f, 0xa5, 0xb4, 0x5c, 0x97, 0x89, 0xba, 0x34, 0x5a, 0x57, 0xf8, 0x51, 0xa6, 0xed, 0x13, 0xb0,
|
||||
0x0b, 0xbc, 0x44, 0x60, 0x05, 0x05, 0x6a, 0xb4, 0xb9, 0x66, 0x26, 0x22, 0x8f, 0xa0, 0x19, 0xf0,
|
||||
0x19, 0x93, 0xde, 0x2b, 0x3e, 0x16, 0x11, 0x0b, 0x84, 0x53, 0xc5, 0x1d, 0xbe, 0x57, 0xdc, 0xe1,
|
||||
0xc3, 0xe5, 0xe4, 0x25, 0x97, 0xc3, 0x88, 0x05, 0xe9, 0x36, 0x37, 0xb2, 0x18, 0x85, 0x09, 0xf2,
|
||||
0x31, 0xdc, 0x59, 0x27, 0x99, 0xf2, 0x85, 0x64, 0xc2, 0xb1, 0x5a, 0x46, 0x9b, 0xd0, 0x75, 0xee,
|
||||
0x67, 0x88, 0x6e, 0x10, 0x51, 0x9d, 0x70, 0xa0, 0x65, 0xb4, 0xb5, 0x9c, 0x88, 0xd2, 0x84, 0x92,
|
||||
0x15, 0x85, 0xc2, 0x2b, 0xc8, 0xaa, 0xfd, 0x1b, 0x59, 0x59, 0xcc, 0x5a, 0xd6, 0x3a, 0x49, 0x2a,
|
||||
0xab, 0x9e, 0xc8, 0xca, 0xe0, 0x5c, 0xd6, 0x9a, 0x98, 0xca, 0x6a, 0x24, 0xb2, 0x32, 0x38, 0x95,
|
||||
0xf5, 0x15, 0x40, 0xcc, 0x05, 0x97, 0xe3, 0xb9, 0xda, 0xfd, 0x26, 0xde, 0xf1, 0x87, 0x45, 0x49,
|
||||
0xeb, 0xfe, 0xe9, 0x50, 0xc5, 0x3b, 0xf5, 0x02, 0x49, 0xad, 0x38, 0x5b, 0x6e, 0x36, 0xe0, 0x9d,
|
||||
0x37, 0x1a, 0x90, 0x7c, 0x08, 0x8d, 0xc9, 0x52, 0xc8, 0xd0, 0x1f, 0x63, 0xbb, 0x0a, 0xc7, 0x46,
|
||||
0x11, 0xf5, 0x04, 0xfc, 0x06, 0x31, 0xf7, 0x73, 0xb0, 0xd6, 0xa9, 0x37, 0xaf, 0x73, 0x05, 0x8c,
|
||||
0x17, 0xdd, 0xa1, 0xad, 0x11, 0x13, 0xf4, 0xfe, 0xc0, 0xd6, 0xf3, 0x2b, 0x6d, 0x1c, 0x56, 0xa0,
|
||||
0x8c, 0x1f, 0x76, 0x58, 0x07, 0xc8, 0x7b, 0xc3, 0x7d, 0x0a, 0x90, 0x6f, 0xa2, 0x6a, 0xcf, 0xf0,
|
||||
0xea, 0x4a, 0xf0, 0xa4, 0xdf, 0xb7, 0x69, 0x6a, 0x29, 0x7c, 0xc1, 0x83, 0x99, 0x9c, 0x63, 0x9b,
|
||||
0x37, 0x68, 0x6a, 0xb9, 0x7f, 0x6a, 0x00, 0x23, 0xcf, 0xe7, 0x43, 0x1e, 0x7b, 0x5c, 0xbc, 0xfb,
|
||||
0x25, 0xdd, 0x87, 0x8a, 0xc0, 0xf9, 0x20, 0x1c, 0x1d, 0x23, 0x48, 0x31, 0x22, 0x19, 0x1d, 0x69,
|
||||
0x48, 0x46, 0x24, 0x5f, 0x80, 0xc5, 0xd3, 0xa9, 0x20, 0x1c, 0x03, 0xa3, 0x76, 0x8a, 0x51, 0xd9,
|
||||
0xc8, 0x48, 0xe3, 0x72, 0x32, 0xf9, 0x12, 0x60, 0x9e, 0x9d, 0x8e, 0x70, 0x4a, 0x18, 0x7a, 0xf7,
|
||||
0xad, 0x67, 0x97, 0xc6, 0x16, 0xe8, 0xee, 0x63, 0x28, 0xe3, 0x17, 0xa8, 0x11, 0x8b, 0x63, 0x59,
|
||||
0x4b, 0x46, 0xac, 0x5a, 0x6f, 0x0e, 0x1b, 0x2b, 0x1d, 0x36, 0xee, 0x13, 0x30, 0xcf, 0x93, 0xef,
|
||||
0x7c, 0xd7, 0x8d, 0x71, 0x7f, 0xd2, 0xa0, 0x8e, 0x78, 0x8f, 0xc9, 0xc9, 0x9c, 0xc7, 0xe4, 0xf1,
|
||||
0xc6, 0xab, 0xf2, 0xe0, 0x56, 0x7c, 0xca, 0xeb, 0x14, 0x5e, 0x93, 0x4c, 0xa8, 0xfe, 0x36, 0xa1,
|
||||
0x46, 0x51, 0x68, 0x1b, 0x4a, 0xf8, 0x36, 0x98, 0xa0, 0x77, 0x9f, 0x27, 0x7d, 0xd4, 0xef, 0x3e,
|
||||
0x4f, 0xfa, 0x88, 0xaa, 0xf7, 0x40, 0x01, 0xb4, 0x6b, 0x1b, 0xee, 0x2f, 0x9a, 0x6a, 0x3e, 0x36,
|
||||
0x55, 0xbd, 0x27, 0xc8, 0xff, 0xa1, 0x22, 0x24, 0x8f, 0xc6, 0xbe, 0x40, 0x5d, 0x06, 0x35, 0x95,
|
||||
0xd9, 0x13, 0xaa, 0xf4, 0xd5, 0x32, 0x98, 0x64, 0xa5, 0xd5, 0x9a, 0xbc, 0x07, 0x55, 0x21, 0x59,
|
||||
0x2c, 0x15, 0x3b, 0x99, 0xbc, 0x15, 0xb4, 0x7b, 0x82, 0xdc, 0x05, 0x93, 0x07, 0xd3, 0x31, 0x1e,
|
||||
0x8a, 0x72, 0x94, 0x79, 0x30, 0xed, 0x09, 0x72, 0x1f, 0xaa, 0xb3, 0x38, 0x5c, 0x46, 0x5e, 0x30,
|
||||
0x73, 0xca, 0x2d, 0xa3, 0x6d, 0xd1, 0xb5, 0x4d, 0x9a, 0xa0, 0x5f, 0xae, 0x70, 0xfa, 0x55, 0xa9,
|
||||
0x7e, 0xb9, 0x52, 0xd9, 0x63, 0x16, 0xcc, 0xb8, 0x4a, 0x52, 0x49, 0xb2, 0xa3, 0xdd, 0x13, 0xee,
|
||||
0x6f, 0x1a, 0x94, 0x8f, 0xe6, 0xcb, 0xe0, 0x25, 0xd9, 0x85, 0x9a, 0xef, 0x05, 0x63, 0x75, 0xdf,
|
||||
0x72, 0xcd, 0x96, 0xef, 0x05, 0xaa, 0x87, 0x7b, 0x02, 0xfd, 0xec, 0x7a, 0xed, 0x4f, 0x1f, 0x24,
|
||||
0x9f, 0x5d, 0xa7, 0xfe, 0x4e, 0x7a, 0x08, 0x06, 0x1e, 0xc2, 0xfd, 0xe2, 0x21, 0x60, 0x81, 0x4e,
|
||||
0x37, 0x98, 0x84, 0x53, 0x2f, 0x98, 0xe5, 0x27, 0xa0, 0x1e, 0x7a, 0xfc, 0xaa, 0x3a, 0xc5, 0xb5,
|
||||
0xfb, 0x0c, 0xaa, 0x19, 0xeb, 0xd6, 0xe5, 0xfd, 0x6e, 0xa0, 0xde, 0xe1, 0x8d, 0xc7, 0x57, 0x27,
|
||||
0xff, 0x83, 0x3b, 0xc7, 0xe7, 0x83, 0x83, 0xd1, 0xb8, 0xf0, 0x22, 0xbb, 0x3f, 0x40, 0x03, 0x2b,
|
||||
0xf2, 0xe9, 0x7f, 0xbd, 0x7a, 0x7b, 0x60, 0x4e, 0x54, 0x86, 0xec, 0xe6, 0x6d, 0xdf, 0xfa, 0x9a,
|
||||
0x2c, 0x20, 0xa1, 0x1d, 0xee, 0xbc, 0xbe, 0xd9, 0xd5, 0x7e, 0xbd, 0xd9, 0xd5, 0xfe, 0xb8, 0xd9,
|
||||
0xd5, 0xbe, 0x37, 0x15, 0x3b, 0xba, 0xbc, 0x34, 0xf1, 0x3f, 0xe8, 0xb3, 0xbf, 0x03, 0x00, 0x00,
|
||||
0xff, 0xff, 0x8b, 0x63, 0xd6, 0x2e, 0x38, 0x09, 0x00, 0x00,
|
||||
}
|
||||
|
||||
func (m *MetricMetadata) Marshal() (dAtA []byte, err error) {
|
||||
|
|
@ -1385,6 +1394,18 @@ func (m *Histogram) MarshalToSizedBuffer(dAtA []byte) (int, error) {
|
|||
i -= len(m.XXX_unrecognized)
|
||||
copy(dAtA[i:], m.XXX_unrecognized)
|
||||
}
|
||||
if len(m.CustomValues) > 0 {
|
||||
for iNdEx := len(m.CustomValues) - 1; iNdEx >= 0; iNdEx-- {
|
||||
f1 := math.Float64bits(float64(m.CustomValues[iNdEx]))
|
||||
i -= 8
|
||||
encoding_binary.LittleEndian.PutUint64(dAtA[i:], uint64(f1))
|
||||
}
|
||||
i = encodeVarintTypes(dAtA, i, uint64(len(m.CustomValues)*8))
|
||||
i--
|
||||
dAtA[i] = 0x1
|
||||
i--
|
||||
dAtA[i] = 0x82
|
||||
}
|
||||
if m.Timestamp != 0 {
|
||||
i = encodeVarintTypes(dAtA, i, uint64(m.Timestamp))
|
||||
i--
|
||||
|
|
@ -1397,30 +1418,30 @@ func (m *Histogram) MarshalToSizedBuffer(dAtA []byte) (int, error) {
|
|||
}
|
||||
if len(m.PositiveCounts) > 0 {
|
||||
for iNdEx := len(m.PositiveCounts) - 1; iNdEx >= 0; iNdEx-- {
|
||||
f1 := math.Float64bits(float64(m.PositiveCounts[iNdEx]))
|
||||
f2 := math.Float64bits(float64(m.PositiveCounts[iNdEx]))
|
||||
i -= 8
|
||||
encoding_binary.LittleEndian.PutUint64(dAtA[i:], uint64(f1))
|
||||
encoding_binary.LittleEndian.PutUint64(dAtA[i:], uint64(f2))
|
||||
}
|
||||
i = encodeVarintTypes(dAtA, i, uint64(len(m.PositiveCounts)*8))
|
||||
i--
|
||||
dAtA[i] = 0x6a
|
||||
}
|
||||
if len(m.PositiveDeltas) > 0 {
|
||||
var j2 int
|
||||
dAtA4 := make([]byte, len(m.PositiveDeltas)*10)
|
||||
var j3 int
|
||||
dAtA5 := make([]byte, len(m.PositiveDeltas)*10)
|
||||
for _, num := range m.PositiveDeltas {
|
||||
x3 := (uint64(num) << 1) ^ uint64((num >> 63))
|
||||
for x3 >= 1<<7 {
|
||||
dAtA4[j2] = uint8(uint64(x3)&0x7f | 0x80)
|
||||
j2++
|
||||
x3 >>= 7
|
||||
x4 := (uint64(num) << 1) ^ uint64((num >> 63))
|
||||
for x4 >= 1<<7 {
|
||||
dAtA5[j3] = uint8(uint64(x4)&0x7f | 0x80)
|
||||
j3++
|
||||
x4 >>= 7
|
||||
}
|
||||
dAtA4[j2] = uint8(x3)
|
||||
j2++
|
||||
dAtA5[j3] = uint8(x4)
|
||||
j3++
|
||||
}
|
||||
i -= j2
|
||||
copy(dAtA[i:], dAtA4[:j2])
|
||||
i = encodeVarintTypes(dAtA, i, uint64(j2))
|
||||
i -= j3
|
||||
copy(dAtA[i:], dAtA5[:j3])
|
||||
i = encodeVarintTypes(dAtA, i, uint64(j3))
|
||||
i--
|
||||
dAtA[i] = 0x62
|
||||
}
|
||||
|
|
@ -1440,30 +1461,30 @@ func (m *Histogram) MarshalToSizedBuffer(dAtA []byte) (int, error) {
|
|||
}
|
||||
if len(m.NegativeCounts) > 0 {
|
||||
for iNdEx := len(m.NegativeCounts) - 1; iNdEx >= 0; iNdEx-- {
|
||||
f5 := math.Float64bits(float64(m.NegativeCounts[iNdEx]))
|
||||
f6 := math.Float64bits(float64(m.NegativeCounts[iNdEx]))
|
||||
i -= 8
|
||||
encoding_binary.LittleEndian.PutUint64(dAtA[i:], uint64(f5))
|
||||
encoding_binary.LittleEndian.PutUint64(dAtA[i:], uint64(f6))
|
||||
}
|
||||
i = encodeVarintTypes(dAtA, i, uint64(len(m.NegativeCounts)*8))
|
||||
i--
|
||||
dAtA[i] = 0x52
|
||||
}
|
||||
if len(m.NegativeDeltas) > 0 {
|
||||
var j6 int
|
||||
dAtA8 := make([]byte, len(m.NegativeDeltas)*10)
|
||||
var j7 int
|
||||
dAtA9 := make([]byte, len(m.NegativeDeltas)*10)
|
||||
for _, num := range m.NegativeDeltas {
|
||||
x7 := (uint64(num) << 1) ^ uint64((num >> 63))
|
||||
for x7 >= 1<<7 {
|
||||
dAtA8[j6] = uint8(uint64(x7)&0x7f | 0x80)
|
||||
j6++
|
||||
x7 >>= 7
|
||||
x8 := (uint64(num) << 1) ^ uint64((num >> 63))
|
||||
for x8 >= 1<<7 {
|
||||
dAtA9[j7] = uint8(uint64(x8)&0x7f | 0x80)
|
||||
j7++
|
||||
x8 >>= 7
|
||||
}
|
||||
dAtA8[j6] = uint8(x7)
|
||||
j6++
|
||||
dAtA9[j7] = uint8(x8)
|
||||
j7++
|
||||
}
|
||||
i -= j6
|
||||
copy(dAtA[i:], dAtA8[:j6])
|
||||
i = encodeVarintTypes(dAtA, i, uint64(j6))
|
||||
i -= j7
|
||||
copy(dAtA[i:], dAtA9[:j7])
|
||||
i = encodeVarintTypes(dAtA, i, uint64(j7))
|
||||
i--
|
||||
dAtA[i] = 0x4a
|
||||
}
|
||||
|
|
@ -2133,6 +2154,9 @@ func (m *Histogram) Size() (n int) {
|
|||
if m.Timestamp != 0 {
|
||||
n += 1 + sovTypes(uint64(m.Timestamp))
|
||||
}
|
||||
if len(m.CustomValues) > 0 {
|
||||
n += 2 + sovTypes(uint64(len(m.CustomValues)*8)) + len(m.CustomValues)*8
|
||||
}
|
||||
if m.XXX_unrecognized != nil {
|
||||
n += len(m.XXX_unrecognized)
|
||||
}
|
||||
|
|
@ -3248,6 +3272,60 @@ func (m *Histogram) Unmarshal(dAtA []byte) error {
|
|||
break
|
||||
}
|
||||
}
|
||||
case 16:
|
||||
if wireType == 1 {
|
||||
var v uint64
|
||||
if (iNdEx + 8) > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
v = uint64(encoding_binary.LittleEndian.Uint64(dAtA[iNdEx:]))
|
||||
iNdEx += 8
|
||||
v2 := float64(math.Float64frombits(v))
|
||||
m.CustomValues = append(m.CustomValues, v2)
|
||||
} else if wireType == 2 {
|
||||
var packedLen int
|
||||
for shift := uint(0); ; shift += 7 {
|
||||
if shift >= 64 {
|
||||
return ErrIntOverflowTypes
|
||||
}
|
||||
if iNdEx >= l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
b := dAtA[iNdEx]
|
||||
iNdEx++
|
||||
packedLen |= int(b&0x7F) << shift
|
||||
if b < 0x80 {
|
||||
break
|
||||
}
|
||||
}
|
||||
if packedLen < 0 {
|
||||
return ErrInvalidLengthTypes
|
||||
}
|
||||
postIndex := iNdEx + packedLen
|
||||
if postIndex < 0 {
|
||||
return ErrInvalidLengthTypes
|
||||
}
|
||||
if postIndex > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
var elementCount int
|
||||
elementCount = packedLen / 8
|
||||
if elementCount != 0 && len(m.CustomValues) == 0 {
|
||||
m.CustomValues = make([]float64, 0, elementCount)
|
||||
}
|
||||
for iNdEx < postIndex {
|
||||
var v uint64
|
||||
if (iNdEx + 8) > l {
|
||||
return io.ErrUnexpectedEOF
|
||||
}
|
||||
v = uint64(encoding_binary.LittleEndian.Uint64(dAtA[iNdEx:]))
|
||||
iNdEx += 8
|
||||
v2 := float64(math.Float64frombits(v))
|
||||
m.CustomValues = append(m.CustomValues, v2)
|
||||
}
|
||||
} else {
|
||||
return fmt.Errorf("proto: wrong wireType = %d for field CustomValues", wireType)
|
||||
}
|
||||
default:
|
||||
iNdEx = preIndex
|
||||
skippy, err := skipTypes(dAtA[iNdEx:])
|
||||
|
|
|
|||
|
|
@ -107,6 +107,8 @@ message Histogram {
|
|||
// timestamp is in ms format, see model/timestamp/timestamp.go for
|
||||
// conversion from time.Time to Prometheus timestamp.
|
||||
int64 timestamp = 15;
|
||||
|
||||
repeated double custom_values = 16;
|
||||
}
|
||||
|
||||
// A BucketSpan defines a number of consecutive buckets with their
|
||||
|
|
|
|||
|
|
@ -168,6 +168,7 @@ func convertBucketsLayout(buckets pmetric.ExponentialHistogramDataPointBuckets,
|
|||
|
||||
// The offset is scaled and adjusted by 1 as described above.
|
||||
bucketIdx := buckets.Offset()>>scaleDown + 1
|
||||
|
||||
spans = append(spans, prompb.BucketSpan{
|
||||
Offset: bucketIdx,
|
||||
Length: 0,
|
||||
|
|
@ -226,3 +227,159 @@ func convertBucketsLayout(buckets pmetric.ExponentialHistogramDataPointBuckets,
|
|||
|
||||
return spans, deltas
|
||||
}
|
||||
|
||||
func (c *PrometheusConverter) addCustomBucketsHistogramDataPoints(ctx context.Context, dataPoints pmetric.HistogramDataPointSlice,
|
||||
resource pcommon.Resource, settings Settings, promName string) (annotations.Annotations, error) {
|
||||
var annots annotations.Annotations
|
||||
|
||||
for x := 0; x < dataPoints.Len(); x++ {
|
||||
if err := c.everyN.checkContext(ctx); err != nil {
|
||||
return annots, err
|
||||
}
|
||||
|
||||
pt := dataPoints.At(x)
|
||||
|
||||
histogram, ws, err := histogramToCustomBucketsHistogram(pt)
|
||||
annots.Merge(ws)
|
||||
if err != nil {
|
||||
return annots, err
|
||||
}
|
||||
|
||||
lbls := createAttributes(
|
||||
resource,
|
||||
pt.Attributes(),
|
||||
settings,
|
||||
nil,
|
||||
true,
|
||||
model.MetricNameLabel,
|
||||
promName,
|
||||
)
|
||||
|
||||
ts, _ := c.getOrCreateTimeSeries(lbls)
|
||||
ts.Histograms = append(ts.Histograms, histogram)
|
||||
|
||||
exemplars, err := getPromExemplars[pmetric.HistogramDataPoint](ctx, &c.everyN, pt)
|
||||
if err != nil {
|
||||
return annots, err
|
||||
}
|
||||
ts.Exemplars = append(ts.Exemplars, exemplars...)
|
||||
}
|
||||
|
||||
return annots, nil
|
||||
}
|
||||
|
||||
func histogramToCustomBucketsHistogram(p pmetric.HistogramDataPoint) (prompb.Histogram, annotations.Annotations, error) {
|
||||
var annots annotations.Annotations
|
||||
|
||||
positiveSpans, positiveDeltas := convertHistogramBucketsToNHCBLayout(p.BucketCounts().AsRaw())
|
||||
|
||||
h := prompb.Histogram{
|
||||
// The counter reset detection must be compatible with Prometheus to
|
||||
// safely set ResetHint to NO. This is not ensured currently.
|
||||
// Sending a sample that triggers counter reset but with ResetHint==NO
|
||||
// would lead to Prometheus panic as it does not double check the hint.
|
||||
// Thus we're explicitly saying UNKNOWN here, which is always safe.
|
||||
// TODO: using created time stamp should be accurate, but we
|
||||
// need to know here if it was used for the detection.
|
||||
// Ref: https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/28663#issuecomment-1810577303
|
||||
// Counter reset detection in Prometheus: https://github.com/prometheus/prometheus/blob/f997c72f294c0f18ca13fa06d51889af04135195/tsdb/chunkenc/histogram.go#L232
|
||||
ResetHint: prompb.Histogram_UNKNOWN,
|
||||
Schema: -53,
|
||||
|
||||
PositiveSpans: positiveSpans,
|
||||
PositiveDeltas: positiveDeltas,
|
||||
CustomValues: p.ExplicitBounds().AsRaw(),
|
||||
|
||||
Timestamp: convertTimeStamp(p.Timestamp()),
|
||||
}
|
||||
|
||||
if p.Flags().NoRecordedValue() {
|
||||
h.Sum = math.Float64frombits(value.StaleNaN)
|
||||
h.Count = &prompb.Histogram_CountInt{CountInt: value.StaleNaN}
|
||||
} else {
|
||||
if p.HasSum() {
|
||||
h.Sum = p.Sum()
|
||||
}
|
||||
h.Count = &prompb.Histogram_CountInt{CountInt: p.Count()}
|
||||
if p.Count() == 0 && h.Sum != 0 {
|
||||
annots.Add(fmt.Errorf("histogram data point has zero count, but non-zero sum: %f", h.Sum))
|
||||
}
|
||||
}
|
||||
return h, annots, nil
|
||||
|
||||
}
|
||||
|
||||
func convertHistogramBucketsToNHCBLayout(buckets []uint64) ([]prompb.BucketSpan, []int64) {
|
||||
if len(buckets) == 0 {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var (
|
||||
spans []prompb.BucketSpan
|
||||
deltas []int64
|
||||
count int64
|
||||
prevCount int64
|
||||
)
|
||||
|
||||
appendDelta := func(count int64) {
|
||||
spans[len(spans)-1].Length++
|
||||
deltas = append(deltas, count-prevCount)
|
||||
prevCount = count
|
||||
}
|
||||
|
||||
var offset int
|
||||
for offset < len(buckets) && buckets[offset] == 0 {
|
||||
offset++
|
||||
}
|
||||
bucketCounts := buckets[offset:]
|
||||
|
||||
bucketIdx := offset + 1
|
||||
spans = append(spans, prompb.BucketSpan{
|
||||
Offset: int32(offset),
|
||||
Length: 0,
|
||||
})
|
||||
|
||||
for i := 0; i < len(bucketCounts); i++ {
|
||||
nextBucketIdx := offset + i + 1
|
||||
if bucketIdx == nextBucketIdx { // We have not collected enough buckets to merge yet.
|
||||
count += int64(bucketCounts[i])
|
||||
continue
|
||||
}
|
||||
if count == 0 {
|
||||
count = int64(bucketCounts[i])
|
||||
continue
|
||||
}
|
||||
|
||||
iDelta := nextBucketIdx - bucketIdx - 1
|
||||
|
||||
if iDelta > 2 {
|
||||
spans = append(spans, prompb.BucketSpan{
|
||||
Offset: int32(iDelta),
|
||||
Length: 0,
|
||||
})
|
||||
} else {
|
||||
// Either no gap or a gap <= 2
|
||||
for j := int32(0); j < int32(iDelta); j++ {
|
||||
appendDelta(0)
|
||||
}
|
||||
}
|
||||
appendDelta(count)
|
||||
count = int64(bucketCounts[i])
|
||||
bucketIdx = nextBucketIdx
|
||||
}
|
||||
|
||||
iDelta := int32(len(bucketCounts)+offset-1) + 1 - int32(bucketIdx)
|
||||
if iDelta > 2 {
|
||||
spans = append(spans, prompb.BucketSpan{
|
||||
Offset: iDelta,
|
||||
Length: 0,
|
||||
})
|
||||
} else {
|
||||
for j := int32(0); j < iDelta; j++ {
|
||||
appendDelta(0)
|
||||
}
|
||||
}
|
||||
appendDelta(count)
|
||||
|
||||
return spans, deltas
|
||||
}
|
||||
|
|
|
|||
|
|
@ -40,6 +40,7 @@ type Settings struct {
|
|||
AllowUTF8 bool
|
||||
PromoteResourceAttributes []string
|
||||
KeepIdentifyingResourceAttributes bool
|
||||
ConvertHistogramsToNHCB bool
|
||||
}
|
||||
|
||||
// PrometheusConverter converts from OTel write format to Prometheus remote write format.
|
||||
|
|
@ -142,10 +143,21 @@ func (c *PrometheusConverter) FromMetrics(ctx context.Context, md pmetric.Metric
|
|||
errs = multierr.Append(errs, fmt.Errorf("empty data points. %s is dropped", metric.Name()))
|
||||
break
|
||||
}
|
||||
if err := c.addHistogramDataPoints(ctx, dataPoints, resource, settings, promName); err != nil {
|
||||
errs = multierr.Append(errs, err)
|
||||
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
|
||||
return
|
||||
if settings.ConvertHistogramsToNHCB {
|
||||
ws, err := c.addCustomBucketsHistogramDataPoints(ctx, dataPoints, resource, settings, promName)
|
||||
annots.Merge(ws)
|
||||
if err != nil {
|
||||
errs = multierr.Append(errs, err)
|
||||
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
|
||||
return
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if err := c.addHistogramDataPoints(ctx, dataPoints, resource, settings, promName); err != nil {
|
||||
errs = multierr.Append(errs, err)
|
||||
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
case pmetric.MetricTypeExponentialHistogram:
|
||||
|
|
|
|||
|
|
@ -581,6 +581,7 @@ func (rw *rwExporter) ConsumeMetrics(ctx context.Context, md pmetric.Metrics) er
|
|||
AllowUTF8: otlpCfg.TranslationStrategy == config.NoUTF8EscapingWithSuffixes,
|
||||
PromoteResourceAttributes: otlpCfg.PromoteResourceAttributes,
|
||||
KeepIdentifyingResourceAttributes: otlpCfg.KeepIdentifyingResourceAttributes,
|
||||
ConvertHistogramsToNHCB: otlpCfg.ConvertHistogramsToNHCB,
|
||||
})
|
||||
if err != nil {
|
||||
rw.logger.Warn("Error translating OTLP metrics to Prometheus write request", "err", err)
|
||||
|
|
|
|||
Loading…
Reference in a new issue