prometheus/storage/metric/leveldb/instrumentation.go
Matt T. Proud f2ded515b7 Support versioned telemetry providers.
client_golang was updated to support full label-oriented telemetry,
which introduced interface incompatibilities with the previous
version of Prometheus.  To alleviate this, a general fetching and
processing dispatching system has been created, which discriminates
and processes according to the version of input.
2013-01-27 17:45:50 +01:00

73 lines
2.8 KiB
Go

// Copyright 2012 Prometheus Team
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package leveldb
import (
"github.com/prometheus/client_golang"
"github.com/prometheus/client_golang/maths"
"github.com/prometheus/client_golang/metrics"
"time"
)
const (
operation = "operation"
success = "success"
failure = "failure"
result = "result"
appendFingerprints = "append_fingerprints"
appendLabelNameFingerprint = "append_label_name_fingerprint"
appendLabelPairFingerprint = "append_label_pair_fingerprint"
appendSample = "append_sample"
getBoundaryValues = "get_boundary_values"
getFingerprintsForLabelName = "get_fingerprints_for_label_name"
getFingerprintsForLabelSet = "get_fingerprints_for_labelset"
getLabelNameFingerprints = "get_label_name_fingerprints"
getMetricForFingerprint = "get_metric_for_fingerprint"
getRangeValues = "get_range_values"
getValueAtTime = "get_value_at_time"
hasIndexMetric = "has_index_metric"
hasLabelName = "has_label_name"
hasLabelPair = "has_label_pair"
indexMetric = "index_metric"
setLabelNameFingerprints = "set_label_name_fingerprints"
setLabelPairFingerprints = "set_label_pair_fingerprints"
)
var (
diskLatencyHistogram = &metrics.HistogramSpecification{
Starts: metrics.LogarithmicSizedBucketsFor(0, 5000),
BucketBuilder: metrics.AccumulatingBucketBuilder(metrics.EvictAndReplaceWith(10, maths.Average), 100),
ReportablePercentiles: []float64{0.01, 0.05, 0.5, 0.90, 0.99},
}
storageOperations = metrics.NewCounter()
storageLatency = metrics.NewHistogram(diskLatencyHistogram)
)
func recordOutcome(counter metrics.Counter, latency metrics.Histogram, duration time.Duration, err error, success, failure map[string]string) {
labels := success
if err != nil {
labels = failure
}
counter.Increment(labels)
latency.Add(labels, float64(duration/time.Microsecond))
}
func init() {
registry.Register("prometheus_metric_disk_operations_total", "Total number of metric-related disk operations.", registry.NilLabels, storageOperations)
registry.Register("prometheus_metric_disk_latency_microseconds", "Latency for metric disk operations in microseconds.", registry.NilLabels, storageLatency)
}