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metrics.go
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metrics.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// 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 placement
import (
"github.com/uber-go/tally"
)
// Metrics is the struct containing all the counters that track internal state
// of placement processor.
type Metrics struct {
// Increment this counter when we see failure to
// populate the task's volume secret from DB
TaskPopulateSecretFail tally.Counter
TaskRequeuedOnLaunchFail tally.Counter
GetPlacement tally.Counter
GetPlacementFail tally.Counter
GetPlacementsCallDuration tally.Timer
}
// NewMetrics returns a new Metrics struct, with all metrics
// initialized and rooted at the given tally.Scope
func NewMetrics(scope tally.Scope) *Metrics {
taskFailScope := scope.Tagged(map[string]string{"result": "fail"})
taskAPIScope := scope.SubScope("task_api")
getPlacementScope := scope.SubScope("get_placement")
return &Metrics{
GetPlacement: taskAPIScope.Counter("get_placement"),
GetPlacementFail: taskFailScope.Counter("get_placement"),
GetPlacementsCallDuration: getPlacementScope.Timer("call_duration"),
TaskPopulateSecretFail: taskFailScope.Counter("populate_secret"),
TaskRequeuedOnLaunchFail: taskFailScope.Counter("launch_fail_requeued_total"),
}
}