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forked from kubernetes-retired/heapster
/
driver.go
95 lines (82 loc) · 2.4 KB
/
driver.go
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// Copyright 2017 Google Inc. All Rights Reserved.
//
// 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 honeycomb
import (
"net/url"
"sync"
"github.com/golang/glog"
honeycomb_common "k8s.io/heapster/common/honeycomb"
"k8s.io/heapster/metrics/core"
)
// These metrics report cumulative values over the lifetime of the process.
// Heapster also reports gauges (e.g., "cpu/usage_rate"). Cumulative metrics
// are more confusing than helpful, so let's not send them in the first place.
var blacklist = map[string]struct{}{
"cpu/usage": {},
"memory/major_page_faults": {},
"memory/page_faults": {},
"network/rx_errors": {},
"network/rx": {},
"network/tx_errors": {},
"network/tx": {},
}
type honeycombSink struct {
client honeycomb_common.Client
sync.Mutex
}
type Point struct {
MetricsName string
MetricsTags string
}
func (sink *honeycombSink) ExportData(dataBatch *core.DataBatch) {
sink.Lock()
defer sink.Unlock()
batch := make(honeycomb_common.Batch, len(dataBatch.MetricSets))
i := 0
for _, metricSet := range dataBatch.MetricSets {
data := make(map[string]interface{})
for metricName, metricValue := range metricSet.MetricValues {
if _, ok := blacklist[metricName]; ok {
continue
}
data[metricName] = metricValue.GetValue()
}
for k, v := range metricSet.Labels {
data[k] = v
}
batch[i] = &honeycomb_common.BatchPoint{
Data: data,
Timestamp: dataBatch.Timestamp,
}
i++
}
err := sink.client.SendBatch(batch)
if err != nil {
glog.Warningf("Failed to send metrics batch: %v", err)
}
}
func (sink *honeycombSink) Stop() {}
func (sink *honeycombSink) Name() string {
return "Honeycomb Sink"
}
func NewHoneycombSink(uri *url.URL) (core.DataSink, error) {
client, err := honeycomb_common.NewClient(uri)
if err != nil {
return nil, err
}
sink := &honeycombSink{
client: client,
}
return sink, nil
}