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Refactoring Broker Filter #1735
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| /* | ||
| * Copyright 2019 The Knative Authors | ||
| * | ||
| * 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 filter | ||
|
|
||
| import ( | ||
| "go.opencensus.io/stats" | ||
| "go.opencensus.io/stats/view" | ||
| "go.opencensus.io/tag" | ||
| utils "knative.dev/eventing/pkg/broker" | ||
| ) | ||
|
|
||
| var ( | ||
| // MeasureTriggerEventsTotal is a counter which records the number of events received | ||
| // by a Trigger. | ||
| MeasureTriggerEventsTotal = stats.Int64( | ||
| "knative.dev/eventing/trigger/measures/events_total", | ||
| "Total number of events received by a Trigger", | ||
| stats.UnitNone, | ||
| ) | ||
|
|
||
| // MeasureTriggerDispatchTime records the time spent dispatching an event for | ||
| // a Trigger, in milliseconds. | ||
| MeasureTriggerDispatchTime = stats.Int64( | ||
| "knative.dev/eventing/trigger/measures/dispatch_time", | ||
| "Time spent dispatching an event to a Trigger", | ||
| stats.UnitMilliseconds, | ||
| ) | ||
|
|
||
| // MeasureTriggerFilterTime records the time spent filtering a message for a | ||
| // Trigger, in milliseconds. | ||
| MeasureTriggerFilterTime = stats.Int64( | ||
| "knative.dev/eventing/trigger/measures/filter_time", | ||
| "Time spent filtering a message for a Trigger", | ||
| stats.UnitMilliseconds, | ||
| ) | ||
|
|
||
| // MeasureDeliveryTime records the time spent between arrival at ingress | ||
| // and delivery to the trigger subscriber. | ||
| MeasureDeliveryTime = stats.Int64( | ||
| "knative.dev/eventing/trigger/measures/delivery_time", | ||
| "Time between an event arriving at ingress and delivery to the trigger subscriber", | ||
| stats.UnitMilliseconds, | ||
| ) | ||
|
|
||
| // Tag keys must conform to the restrictions described in | ||
| // go.opencensus.io/tag/validate.go. Currently those restrictions are: | ||
| // - length between 1 and 255 inclusive | ||
| // - characters are printable US-ASCII | ||
|
|
||
| // TagResult is a tag key referring to the observed result of an operation. | ||
| TagResult = utils.MustNewTagKey("result") | ||
|
|
||
| // TagFilterResult is a tag key referring to the observed result of a filter | ||
| // operation. | ||
| TagFilterResult = utils.MustNewTagKey("filter_result") | ||
|
|
||
| // TagBroker is a tag key referring to the Broker name serviced by this | ||
| // filter process. | ||
| TagBroker = utils.MustNewTagKey("broker") | ||
|
|
||
| // TagTrigger is a tag key referring to the Trigger name serviced by this | ||
| // filter process. | ||
| TagTrigger = utils.MustNewTagKey("trigger") | ||
| ) | ||
|
|
||
| func init() { | ||
| // Create views for exporting measurements. This returns an error if a | ||
| // previously registered view has the same name with a different value. | ||
| err := view.Register( | ||
| &view.View{ | ||
| Name: "trigger_events_total", | ||
| Measure: MeasureTriggerEventsTotal, | ||
| Aggregation: view.Count(), | ||
| TagKeys: []tag.Key{TagResult, TagBroker, TagTrigger}, | ||
| }, | ||
| &view.View{ | ||
| Name: "trigger_dispatch_time", | ||
| Measure: MeasureTriggerDispatchTime, | ||
| Aggregation: view.Distribution(utils.Buckets125(1, 100)...), // 1, 2, 5, 10, 20, 50, 100, | ||
| TagKeys: []tag.Key{TagResult, TagBroker, TagTrigger}, | ||
| }, | ||
| &view.View{ | ||
| Name: "trigger_filter_time", | ||
| Measure: MeasureTriggerFilterTime, | ||
| Aggregation: view.Distribution(utils.Buckets125(0.1, 10)...), // 0.1, 0.2, 0.5, 1, 2, 5, 10 | ||
| TagKeys: []tag.Key{TagResult, TagFilterResult, TagBroker, TagTrigger}, | ||
| }, | ||
| &view.View{ | ||
| Name: "broker_to_function_delivery_time", | ||
| Measure: MeasureDeliveryTime, | ||
| Aggregation: view.Distribution(utils.Buckets125(1, 100)...), // 1, 2, 5, 10, 20, 50, 100 | ||
| TagKeys: []tag.Key{TagResult, TagBroker, TagTrigger}, | ||
| }, | ||
| ) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } |
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