Pepper Metrics ConceptArchMaven dependencyNext steps 介绍
Architecture
Pepper Metrics项目从核心概念上来说，基于Tom
Wilkie的RED理论，即对每个服务
（这里的服务特指进程中的某种调用，比如调用一次数据库查询）进行RED指标收集，并持久化到数据库，并通过dashboard进行展示，辅助进行性能趋势分析。
Concept
Arch
各个组件说明
- Profiler，
核心部分，用于启动定期调度任务，并通过ExtensionLoad加载所有的ScheduledRun扩展，按照指定周期发起调度。同时内部维护Stats的构造器Profiler.Builder- Scheduler， 虚拟概念，在Profiler作为一个定时任务存在
- ExtensionLoader， 非常重要的组件，通过Java SPI机制加载插件，使项目的各个模块可以灵活插拔，也是项目架构的基石
- ScheduledRun， 扩展点：pepper metrics
core会定时调度，传递所有的Stats，实现插件可以使用Stats当中收集到的性能数据，目前已实现的为scheduled printer组件- Pepper Metrics X，
具体的集成，我们的目标是度量一切，目前计划实现的为：jedis，motan，dubbo，servlet，mybatis等最常用组件
Getting started
以Mybatis集成为例，更多其他请参考：User Guide
-
增加maven依赖
top.zrbcool pepper-metrics-mybatis 1.0.11 top.zrbcool pepper-metrics-ds-prometheus 1.0.11 -
配置Pepper Metrics定制的Mybatis插件使集成生效
…
… -
日志输出效果：
18:27:28 [perf-mybatis:20190822182728] ---------------------------------------------------------------------------------------------------------------------------------------------------------
18:27:28 [perf-mybatis:20190822182728] | Metrics Concurrent Count(Err/Sum) P90(ms) P99(ms) P999(ms) Max(ms) Qps |
18:27:28 [perf-mybatis:20190822182728] | com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId 0 0/1950 0.6 1.4 2.5 3.5 32.5 |
18:27:28 [perf-mybatis:20190822182728] | sample.mybatis.mapper.CityMapper.selectCityById 0 0/1950 0.8 2.4 56.6 56.6 32.5 |
18:27:28 [perf-mybatis:20190822182728] --------------------------------------------------------------------------------------------------------------------------------------------------------- -
Prometheus指标输出效果（默认的实现，可以修改为其他数据库）
✗ curl localhost:9146/metrics
HELP app_mapper_summary_seconds_max
TYPE app_mapper_summary_seconds_max gauge
app_mapper_summary_seconds_max{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,} 0.051129036
app_mapper_summary_seconds_max{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,} 0.011559611HELP app_mapper_summary_seconds
TYPE app_mapper_summary_seconds summary
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,quantile=”0.9”,} 5.5296E-4
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,quantile=”0.99”,} 0.001765376
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,quantile=”0.999”,} 0.052424704
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,quantile=”0.99999”,} 0.052424704
app_mapper_summary_seconds_count{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,} 3040.0
app_mapper_summary_seconds_sum{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,} 1.45711331
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,quantile=”0.9”,} 4.4032E-4
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,quantile=”0.99”,} 0.001308672
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,quantile=”0.999”,} 0.002881536
app_mapper_summary_seconds{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,quantile=”0.99999”,} 0.012056576
app_mapper_summary_seconds_count{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,} 3040.0
app_mapper_summary_seconds_sum{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,} 0.772147736HELP app_mapper_concurrent_gauge
TYPE app_mapper_concurrent_gauge gauge
app_mapper_concurrent_gauge{class=”com/pepper/metrics/sample/mybatis/mapper/CityMapper.xml”,operation=”sample.mybatis.mapper.CityMapper.selectCityById”,} 0.0
app_mapper_concurrent_gauge{class=”com/pepper/metrics/sample/mybatis/mapper/HotelMapper.xml”,operation=”com.pepper.metrics.sample.mybatis.mapper.HotelMapper.selectByCityId”,} 0.0
Maven dependency
以Mybatis为例，更多其他请参考：User Guide
<dependencies>
<!-- pepper metrics dependencies -->
<dependency>
<groupId>top.zrbcool</groupId>
<artifactId>pepper-metrics-mybatis</artifactId>
<version>1.0.11</version>
</dependency>
<!-- pepper-metrics datasource use prometheus by default -->
<dependency>
<groupId>top.zrbcool</groupId>
<artifactId>pepper-metrics-ds-prometheus</artifactId>
<version>1.0.11</version>
</dependency>
</dependencies>
Next steps
- Pepper Metrics User Guide
- Pepper Metrics Architecture
- Pepper Metrics ROAD-MAP
- Pepper Metrics Development Guide
- Pepper Metrics Development Plan
Theory
Building
mvn clean package install
Pepper Metrics ConceptArchMaven dependencyNext steps 官网
https://github.com/zrbcool/pepper-metrics
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