Micrometer 1.9.0 is the GA version of an LTS feature release. Below are the combined release notes of all the pre-release milestones and release candidate preceding it.
⚠️ Noteworthy
ReactorNettySenderhas been removed. See #2802- Remove superseded micrometer-jersey2 module #2865
- Remove deprecated
RegistryResolver#2815
⭐ New Features / Enhancements
- Config for OTLP Resource attributes #3159
- Dynatrace registry: Print ignored config warning only when necessary #3155
- Dynatrace registry: Truncate log output #3148
- Add resettable DistributionSummary and Timer for Dynatrace registry #3093
- Add capability to correctly export fixed buckets histogram to SignalFx #2977
- OpenTelemetry Protocol (OTLP) MeterRegistry #2864
- Exemplars support for Prometheus Histogram #2812
- Exemplars support for Prometheus Counter #2811
- Be able to target classes and not only methods with TimedAspect #493
- Prevent CompositeMeter allocating on each record #3059
- Support writing to elastic data streams #2996
- Allow file-based configuration for Dynatrace v2 exporter #2916
- Add method to SimpleMeterRegistry for outputting all meters #2946
🐞 Bug Fixes
- OTLP resource service name is always unknown #3146
- Dynatrace file-based configuration slow on macOS #3035
- Dynatrace v2 ingestion reporting "inconsistent gauge fields" #3007
- Failed to record timer metrics in native image with percentiles configured #3002
- Correct PostgreSQL metrics for dead tuples, with integration tests and refactoring #2474
- Dependency cycle between micrometer-core and reactor-netty caused by
ReactorNettySender#2802 - Netty HTTP codec module included in statsd JAR #2929
- LongTaskTimer always converts durations of measurements to nanos #2947
- Statsd meter recordings are dropped when submitted from parallel threads #2880
- KafkaMetrics' refresh scheduler can stop in some corner cases #2879
jvm.gc.live.data.sizeandmaxnot updating for optavgpause/optthruput collectors #2874- Intermittent GC data size metrics with Shenandoah and ZGC #2872
MetricsRequestEventListenerwith@Timed(longTask=true)makes two meters #2861
📔 Documentation
- Automate non-Javadoc multi-line comments for license headers #2942
- Switch license header to a multiline comment instead of JavaDoc #2412
🔨 Dependency Upgrades
- Upgrade Spectator to 1.3.2 #3168
- Upgrade to Mockito 4.5.1 #3167
- Upgrade to AWS SDK v1 1.12.217 and v2 2.17.188 #3166
- Upgrade to Reactor 3.4.18, Reactor-Netty 1.0.19, Netty 4.1.77.Final #3165
- Upgrade to JMH 1.35 #3164
- Upgrade to Testcontainers 1.17.1 #3163
- Upgrade to Wiremock 2.33.2 #3162
- Upgrade to SignalFx 1.0.18 #3161
- Upgrade to Reactor 2020.0.17 and Netty 4.1.75 #3084
- Upgrade to Amazon AWS SDK 1.12.178 and 2.17.149 #3078
- Upgrade to Mockito 4.4.0 #3077
- Upgrade archunit to 0.23.1 and awaitility to 4.2.0 #3076
- Upgrade to logback 1.2.11 #3075
- Upgrade to Dropwizard Metrics 4.1.31 #3074
- Upgrade Mockito to 4.3.1 #3029
- Upgrade AWS SDK v1 to 1.12.158 and v2 to 2.17.129 #3028
- Upgrade Netty to 4.1.74.Final #3026
- Upgrade Javaformat to 0.0.31 #3025
- Upgrade JUnit to 5.8.2 and Testcontainers to 1.16.3 #3024
- Upgrade Dropwizard Metrics to 4.1.30 #3023
- Upgrade Slf4J to 1.7.36 #3022
- Upgrade to Gradle Wrapper 7.4 #3001
- Upgrade build jdk to 17.0.2, 8.0.322 [#2988](#2988
- Pin Dropwizard 4.+ instead of 4.0.+ #2905
- Upgrade Spring Boot to 2.6.2 (samples) #2968
- Upgrade JMH to 1.34 #2967
- Upgrade Mockito to 4.2.0 #2966
- Upgrade AWS SDK v1 to 1.12.136 and AWS SDK v2 to 2.17.107 #2964
- Upgrade Spectator to 1.0.14 #2963
- Upgrade to Reactor 2020.0.15 #2974
- Upgrade JUnit platform to 1.7.2 and vintage-engine to 5.7.2 #2962
- Upgrade awaitility to 4.1.1 #2961
- Upgrade Testcontainers to 1.16.2 #2960
- Upgrade ArchUnit to 0.22.0 #2959
- Upgrade spring-javaformat to 0.0.29 #2958
- Upgrade Spring Boot to 2.4.13 (samples) #2957
- Upgrade AssertJ to 3.22.0 #2956
- Upgrade SignalFx to 1.0.14 #2955
- Upgrade Dropwizard Metrics to 4.1.29 #2954
- Upgrade to Azure ApplicationInsights 2.6.4 #2953
- Upgrade Logback to 1.2.10 #2952
- Upgrade to Log4j 2 2.17.1 #2937
- Upgrade JUnit to 5.8.2 and Mockito to 4.1.0 #2902
- Upgrade AWS SDK V1 to 1.12.126 and V2 to 2.17.97 #2900
- Upgrade Spectator to 1.0.7 #2899
- Upgrade JMH to 1.33 #2898
- Upgrade Wiremock to 2.32.0 #2897
- Upgrade logback to 1.2.7 #2896
📝 Tasks
- Polish OTLP registry changes #3153
- Typo in OtlpLongTaskTImer #3147
- Unpin google-cloud-monitoring dependency #3081
- Simplify tests after Dynatrace Metric Utils 1.5.0 release #3065
- Move cache and http core classes back to core #3050
- Add integration tests for Elasticsearch 8 #3037
- Replace deprecated AbstractLifeCycleListener usage in Jetty tests #3014
- Upgrade Elasticsearch Docker image to 7.16.3 in integration tests #2986
- Use Testcontainers for MongoDB integration tests #2984
- Pin spectator-api to 1.0.+ for Micrometer 1.8.x #3027
- Store the Meter.Id instead of the Meter in KafkaMetrics #2991
- Bump up Gradle plugin dependencies #2979
- Use branch name in dependencies cache key for CircleCI #2975
- Upgrade to Gradle Shadow plugin 7.1.2 #2973
- Pinning Prometheus to 0.12.x for Micrometer 1.8.x #2965
- Upgrade to Gradle Enterprise Gradle plugin 3.8 #2949
- Backport test improvements from 2.0.x to 1.7.x #2943
- Use daemon thread in CommonsObjectPool2Metrics #2938
- Suppress "warning: no comment" in javadoc task #2935
- Disable javadoc task for sample projects #2934
- Upgrade to Gradle Wrapper 7.3.3 #2931
- Upgrade build images to JDK 8.0.312 and 11.0.13 #2919
- Upgrade build machine image to ubuntu-2004:202111-01 #2913
- Upgrade build images to JDK 17.0.1, 11.0.12, 8.0.302 #2912
- Use Javadoc code instead of Markdown backticks #2907
- Generate lock files for 1.9.0-M1 #2903
- Remove superseded micrometer-jersey2 module #2865
- Remove deprecated
RegistryResolver#2815 - Locking dynatrace-metric-utils-java to 1.1.+ #2901
- Update samples to use Spring Boot 2.6.1 #2891
- Deprecate ReactorNettySenderTest #2884
- Upgrade to Gradle Wrapper 7.3.1 #2882
- Update Gradle Enterprise Plugin to 3.7.2 #2869
❤️ Contributors
We'd like to thank all the contributors who worked on this release!