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Overview ¶
Copyright 2020 New Relic Corporation. All rights reserved. SPDX-License-Identifier: Apache-2.0
Copyright 2020 New Relic Corporation. All rights reserved. SPDX-License-Identifier: Apache-2.0
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type ExcludeProcessSampleMatchFn ¶ added in v1.67.3
type ExcludeProcessSampleMatchFn MatcherFn
ExcludeProcessSampleMatchFn func that returns whether an event/sample should be excluded, it satisfies the metrics matcher (processor.MatcherChain) interface.
type ExpressionMatcher ¶
type ExpressionMatcher interface {
// Evaluate compare property value with evaluator criteria and
// return if it found a match
Evaluate(event interface{}) bool
}
ExpressionMatcher is an interface every evaluator must implement
type IncludeProcessSampleMatchFn ¶ added in v1.67.3
type IncludeProcessSampleMatchFn MatcherFn
IncludeProcessSampleMatchFn func that returns whether an event/sample should be included, it satisfies the metrics matcher (processor.MatcherChain) interface.
type MatcherChain ¶
type MatcherChain struct {
Matchers map[string][]ExpressionMatcher
Enabled bool
}
MatcherChain is a chain of evaluators An evaluator chain stores for each attribute an array of evaluators Each evaluator represent a single rule that evaluates against the attribute Usually each attribute will have a single evaluator. For example: - process.name
- "test"
- process.executable
- "/bin/test"
- regex "^/opt/newrelic/"
will create an evaluator chain with 2 entries. The first one will have 1 evaluator. The second 2 evaluators
func NewMatcherChain ¶
func NewMatcherChain(expressions config.MetricsMap) MatcherChain
NewMatcherChain creates a new chain of matchers. Each expression will generate an matcher that gets added to the chain While the chain will be matched for each "sample", it terminates as soon as 1 match is matched (result = true)
func (MatcherChain) Evaluate ¶
func (ec MatcherChain) Evaluate(event interface{}) bool
Evaluate returns the result of compare an event with a chain of matching rules return:
- true, if event match with evaluator criteria chain
- false, if event do not match with evaluator criteria chain
If there is no matchers will return true.
type MatcherFn ¶ added in v1.67.3
MatcherFn func that returns whether an event/sample is matched. It satisfies the metrics matcher (processor.MatcherChain) interface.
func NewExcludeProcessSampleMatchFn ¶ added in v1.67.3
func NewExcludeProcessSampleMatchFn(metricsMatchers config.ExcludeMetricsMap) MatcherFn
NewExcludeProcessSampleMatchFn returns a function `func(sample) bool` that determinesif the sample should be excluded (true) as an event or not (false). Note that this is NOT the negation of `NewIncludeProcessSampleMatchFn`. In particular, we don't check here for the `enableProcessMetrics` being unset or disabled because it is checked before calling this function at `agent.NewAgent`. The exclude decision logic only applies to ProcessSamples. Other kinds of samples are never excluded.
func NewIncludeProcessSampleMatchFn ¶ added in v1.67.3
func NewIncludeProcessSampleMatchFn(enableProcessMetrics *bool, metricsMatchers config.IncludeMetricsMap, ffRetriever feature_flags.Retriever) MatcherFn
NewIncludeProcessSampleMatchFn returns a function `func(sample) bool` that determinesif the sample should be included (true) as an event or not (false). Note that this is NOT the negation of `NewExcludeProcessSampleMatchFn`. The include decision logic only applies to ProcessSamples. Other kinds of samples are always included.
type SamplerRoutine ¶
type SamplerRoutine struct {
// contains filtered or unexported fields
}
func StartSamplerRoutine ¶
func StartSamplerRoutine(sampler Sampler, sampleQueue chan sample.EventBatch) *SamplerRoutine
func (*SamplerRoutine) Stop ¶
func (sr *SamplerRoutine) Stop()
Source Files