Post on 28-Jun-2020
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Comomanteradisponibilidadedemicroservicesatravésdomonitoramentodemétricas
ElderMoraes|@elderjavaDeveloperAdvocateAbril,2019
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SafeHarborStatementThefollowingisintendedtooutlineourgeneralproductdirection.Itisintendedforinformationpurposesonly,andmaynotbeincorporatedintoanycontract.Itisnotacommitmenttodeliveranymaterial,code,orfunctionality,andshouldnotberelieduponinmakingpurchasingdecisions.Thedevelopment,release,timing,andpricingofanyfeaturesorfunctionalitydescribedforOracle’sproductsmaychangeandremainsatthesolediscretionofOracleCorporation.
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Métricas
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Métricaéumamedidaparaavaliar,controlare/ouselecionar
quantitativamente:umapessoa,umprocesso,umeventoouuma
instituição
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Métrica≠HealthCheck
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RockyBalboaService
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• Forçadosoco:100%• Sagramento:0ml/s
• Visão:100%• Nívelsuor:1ml/s
• Confiança:10• Pronúncia:Adrian!
• Forçadosoco:0,5%• Sagramento:100ml/s
• Visão:-10%• Nívelsuor:2000ml/s(baldes)
• Confiança:0• Pronúncia:Ãnhãnãããnnnn
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Microprofile:3tiposdemétricas• base– JVM– Threads– ThreadPools– Classloading– SO
• vendor• application
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JSON PROMETHEUS
RESTAPI
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RESTAPI
/metrics/metrics/base/metrics/vendor/metrics/application
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FormatoGaugeJSON
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FormatoCounterJSON
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FormatoMeterJSON
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FormatoHistogramJSON
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FormatoTimerJSON
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TodospossuemequivalentesnoformatoPrometheus
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Códigoorientadoamétricas
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Annotation
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Annotation Aplica-sea Descrição
@Counted M,C,T Contabilizaaquantidadedeinvocaçõesdoobjetoanotado
@Gauge M Medidorqueexibeovalordoobjetoanotado
@Metered M,C,T Medeafrequênciadeinvocaçõesdoobjetoanotado
@Timed M,C,T Medeotempodeduraçãodoobjetoanotado
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Helidon
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• ÉumconjuntodeAPIsparadesenvolvimentodemicroservices• OpenSource(Apache2.0)• HelidonSE:microframework• HelidonMP:MicroProfile
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Arquitetura
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CódigoHelidonSE
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CódigoHelidonMP
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DEMOTIME!!!
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@elderjavabook.eldermoraes.com
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Java@CloudAge
bit.ly/javacloudage
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