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Micrometer入門 #javaq / introduce-to-micrometer
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Manabu Matsuzaki
October 08, 2019
Programming
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2.5k
Micrometer入門 #javaq / introduce-to-micrometer
Javaコミュ@福岡 勉強会1910 での発表資料です
https://javaq.connpass.com/event/147444/
Manabu Matsuzaki
October 08, 2019
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Transcript
Micrometerೖ JavaίϛϡˏԬ ษڧձ1910 2019/10/08 @matsumana
Self Introduction • Nameɿ Manabu Matsuzaki • Work atɿ LINE
Fukuoka Corporation • Roleɿ SRE • Twitterɿ @matsumana
Agenda • Micrometerೖ • MicrometerͷओཁͳMeterͱTag • MicrometerΛ͏ • Micrometerͷ֤छMeterΛͬͯࣗͰϝτϦΫεΛه͢Δ •
Spring BootΞϓϦͰ͏ • Binder • Demo
͜ͷࢿྉҎԼͷόʔδϣϯΛݩʹ࡞͍ͯ͠·͢ • Micrometer: 1.3.0 (LTS) • https://github.com/micrometer-metrics/micrometer/releases • Spring Boot:
2.2.0 RC1 • https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-2.2- Release-Notes • Armeria: 0.94.0 (Micrometerͷ͍ํͷαϯϓϧͱͯ͠հ͠·͢) • https://github.com/line/armeria/releases
Micrometerͱʁ
https://micrometer.io/
Micrometer͕αϙʔτ͍ͯ͠Δ ϞχλϦϯάγεςϜ • Datadog • Prometheus • Elasticsearch • etc…
MicrometerͷओཁͳMeterͱTag
ओཁͳMeter આ໌ Counter ୯७૿Ճ͢ΔϝτϦΫε ྫʣग़ྗͨ͠logͷճ Gauge ্͕Լ͢ΔϝτϦΫε ྫʣin-flight(ݱࡏॲཧத)ͷϦΫΤετ Timer ϝιουͷॲཧ࣌ؒܭଌͳͲ
LongTaskTimer ͕͔͔࣌ؒΔॲཧͷ࣌ؒܭଌ DistributionSummary Πϕϯτͷαϯϓϧ ྫʣhttpͷrequest/responseαΠζ
TagͰϝτϦΫεʹใΛՃ͢Δ • Tagkey-valueͷϖΞ • 1ͭͷϝτϦΫεʹରͯ͠ෳͷTagΛՃͰ͖Δ • Tag͕࣮ࡍͷϝτϦΫεͰͲ͏ѻΘΕΔ͔ɺ ͕ࣗ͏ϞχλϦϯάγεςϜ࣍ୈ
TagͰϝτϦΫεʹใΛՃ͢Δ • Πϝʔδɿ TagΛαϙʔτ͢ΔϞχλϦϯάγεςϜ TagΛαϙʔτ͠ͳ͍ϞχλϦϯάγεςϜ http_server_requests{uri=“/foo”, status=“200"} 10 http_server_requests_foo_200 10
http_server_requests{uri=“/foo”, status=“500"} 2 http_server_requests_foo_500 20 http_server_requests{uri=“/bar”, status=“200"} 21 http_server_requests_bar_200 21 http_server_requests{uri=“/bar”, status=“500"} 4 http_server_requests_bar_500 4
Tag͕͑Δ Tag͕͑ͳ͍ AppOptics, Atlas, Azure Monitor, Cloudwatch, Datadog, Datadog StatsD,
Dynatrace, Elastic, Humio, Influx, KairosDB, New Relic, Prometheus, SignalFx, Sysdig StatsD, Telegraf StatsD, Wavefront Graphite, Ganglia, JMX, Etsy StatsD ֤ϞχλϦϯάγεςϜͷTagαϙʔτ https://micrometer.io/docs/concepts#_supported_monitoring_systems
ϝτϦΫεͱTagͷ໋໊نଇ • ϝτϦΫεͱLabelͷ໊લେࣄͰ͢ • MicrometerͷυΩϡϝϯτ • Naming meters: https://micrometer.io/docs/concepts#_naming_meters •
PrometheusͷυΩϡϝϯτ • Metric and label naming: https://prometheus.io/docs/practices/naming/
MicrometerΛ͏
Micrometerͷ֤छMeterΛͬͯ ࣗͰϝτϦΫεΛه͢Δ
αϯϓϧϓϩάϥϜ • Micrometerιʔεrepoʹ͋ΔαϯϓϧϓϩάϥϜ • https://github.com/micrometer-metrics/micrometer/tree/v1.3.0/ samples/micrometer-samples-core/src/main/java/io/micrometer/ core/samples • CounterSample.java •
GaugeSample.java • TimerSample.java
αϯϓϧϓϩάϥϜ • Micrometerͷ͍ํArmeriaࢀߟʹͳΓ·͢ • ྫʣϦΫΤετ/ϨεϙϯεͷϝτϦΫε • https://github.com/line/armeria/blob/armeria-0.94.0/core/src/main/java/com/linecorp/ armeria/internal/metric/RequestMetricSupport.java#L241-L247 • https://github.com/line/armeria/blob/armeria-0.94.0/core/src/main/java/com/linecorp/
armeria/common/logging/DefaultRequestLog.java • ϦΫΤετޭɺϦΫΤετΤϥʔ (Counter) • ϦΫΤετॲཧ࣌ؒ (Timer) • ϦΫΤεταΠζɺϨεϙϯεαΠζ (DistributionSummary)
Spring BootΞϓϦͰ͏
ΞϓϦέʔγϣϯઃఆ (Must) • ActuatorΛґଘϥΠϒϥϦʹՃ org.springframework.boot:spring-boot-starter-actuator • ͕ࣗ͏ϞχλϦϯάγεςϜ༻ͷґଘϥΠϒϥϦՃ • Prometheusͷ߹: io.micrometer:micrometer-registry-prometheus
• Datadogͷ߹: io.micrometer:micrometer-registry-datadog
ΞϓϦέʔγϣϯઃఆ (Optional) • Prometheusͷ߹ɺΞϓϦέʔγϣϯଆʹPrometheusαʔό͕ Scrape͢ΔEndpoint͕ඞཁɻ • application.yml(or application.properties)ʹઃఆΛߦ͏ • management.endpoints.web.exposure.includeʹprometheusΛՃ
ྫʣ management.endpoints.web.exposure.include=info, health, prometheus
ΞϓϦέʔγϣϯઃఆʢ͓͢͢Ίʣ • ݸਓతʹɺҎԼઃఆ͢ΔࣄΛ͓͢͢Ί • URIຖͷϨΠςϯγͷϝτϦΫε management.metrics.distribution.percentiles.http.server.requests
ؔ࿈υΩϡϝϯτͱࢀߟϒϩά • Spring Boot Actuator: Production-ready Features https://docs.spring.io/spring-boot/docs/2.2.0.RC1/reference/html/ production-ready-features.html •
Spring BootΞϓϦͷϝτϦΫεΛMicrometerͰऩू͢Δ https://matsumana.info/blog/2018/05/23/collect-spring-boot-app- metrics-with-micrometer/ • ϨΠςϯγʔΛܭࢉ͢Δٕज़ͷ https://engineering.linecorp.com/ja/blog/latency-calculation-techniques/
Binder
Binderͱʁ • ϞχλϦϯάର(JVM/APαʔό/ϥΠϒϥϦͳͲ)ͱMicrometerͱͷͭͳ͗ • ϞχλϦϯάର͕͍ࣗ࣋ͬͯΔϝτϦΫεΛMicrometerܦ༝ͰϞχλϦ ϯάγεςϜʹૹΔࣄ͕Ͱ͖Δ • Micrometerͷඪ४Binder https://github.com/micrometer-metrics/micrometer/tree/v1.3.0/micrometer- core/src/main/java/io/micrometer/core/instrument/binder
• JVMɺTomcatɺJettyɺLogbackɺCaffeineɺetc…
Binderͱʁ • ྫ͑ɺJVMؔ࿈ͷϝτϦΫεҎԼ • https://github.com/micrometer-metrics/micrometer/tree/v1.3.0/ micrometer-core/src/main/java/io/micrometer/core/instrument/binder/jvm • JvmGcMetrics.java • JvmMemoryMetrics.java
• JvmThreadMetrics.java • ClassLoaderMetrics.java
DEMO • αϯϓϧΞϓϦ • https://github.com/matsumana/micrometer-example • DatadogʹϝτϦΫεΛอଘ͢Δ • PrometheusʹϝτϦΫεΛอଘͯ͠GrafanaͰՄࢹԽ͢Δ •
JVMϝτϦΫεͷμογϡϘʔυ • HikariCPϝτϦΫεͷμογϡϘʔυ
·ͱΊ • MicrometerͷओཁͳMeterͱTagʹ͍ͭͯઆ໌͠·ͨ͠ • MeterΛͬͯϝτϦΫεΛه͢Δํ๏ʹ͍ͭͯઆ໌͠·ͨ͠ • Binderʹ͍ͭͯઆ໌͠·ͨ͠ • DatadogɺPrometheusͷσϞΛ͓ݟͤ͠·ͨ͠ •
JVMͱHikariCPͷϝτϦΫεΛGrafanaͰՄࢹԽͯ͠Έ·ͨ͠
Thank you :)