关于java:分布式微服务监控系统Jellyfish使用介绍

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Jellyfish 是一款轻量级的, 用 Java 写的, 散布式微服务实时监控零碎，可无缝对接 Spring Boot 或 Spring Cloud 工程

Jellyfish 提供的监控性能次要分为两个局部：

  1. 应用程序日志对立收集和查问
  2. 统计和监控 SpringBoot 应用程序 HTTP 接口 3 个指标：申请耗时，错误率，并发度

Jellyfish 部署形式
Jellyfish 分为服务端和 agent 端
服务端 通常是一个独立的 SpringBoot 利用或集群，集群模式是通过另一个微服务分布式合作框架 tridenter 实现的，Jellyfish 服务端还须要部署 Redis 和 ElasticSearch
Agent 端 通常是退出了 jellyfish 相干 jar 包的另一组 SpringBoot 利用或集群，它们向服务端实时发送数据包。

Jellyfish 的个性：

  1. Jellyfish 服务端基于流式计算框架 vortex（底层是 Netty4），低提早，高并发，且反对 TCP 和 HTTP 两种传输协定
  2. Jellyfish 服务端的网络通信层依赖 vortex 框架，反对动静程度扩大，反对数据最终一致性
  3. Jellyfish 的利用接口统计是准实时的，纯内存计算，默认的统计工夫窗口为 1 分钟（可自定义），但统计的接口数量变多可能会影响实时性，经测试，最大提早放弃在 1 分钟内，均匀提早在秒级。

Jellyfish 系列一共有 4 个子工程：

  1. jellyfish-console 
    Jellyfish Web 控制台，可独立运行，通常作为服务端，当然你也能够自定义服务 端，通过应用注解 @EnableJellyfishServer
  2. jellyfish-http-spring-boot-starter 
    jar 包，Jellyfish 监控利用程序接口进行指标统计的 Agent 程序包
  3. jellyfish-slf4j   
    jar 包，Jellyfish 对接 slf4j（目前只实现了 logback 对接），对立利用收集日志的
    agent 程序包
    4. jellyfish-spring-boot-starter  Jellyfish 外围 jar 包, 实现了全副的外围性能

Install

<dependency>
      <artifactId>jellyfish-spring-boot-starter</artifactId>
     <groupId>com.github.paganini2008.atlantis</groupId>
     <version>1.0-RC1</version>
</dependency>

Jellyfish-console 应用阐明

如何对接 slf4j, 对立收集日志：

你的应用程序须要：

  1. pom.xml 增加依赖

    <dependency>
   <artifactId>jellyfish-slf4j</artifactId>
  <groupId>com.github.paganini2008.atlantis</groupId>
  <version>1.0-RC1</version>
</dependency>

  2. 批改 logback.xml

    <?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appender name="logTracker" class="indi.atlantis.framework.jellyfish.slf4j.logback.HttpTransportClientAppender">
<applicationName>tester5</applicationName> <!-- 批改成你的 applicationName -->
<brokerUrl>http://192.168.159.1:10010</brokerUrl> <!-- 批改 Jellyfish console 地址 -->
</appender>
<!-- omit other configuration -->
<root level="info">
<appender-ref ref="STDOUT" />
<appender-ref ref="INFO" />
<appender-ref ref="ERROR" />
<appender-ref ref="logTracker" />  <!-- 援用你定义的 appender -->
</root>
</configuration>

    目前只反对 logback, 将来会反对更多

  3. 先启动 Jellyfish-console
    启动命令：java -jar jellyfish-console-1.0-RC1.jar
    默认端口：6100 地址：http://localhost:6100/jellyfish/log/
  4. 再启动你的应用程序，此时日志会源源不断的流入 Jellyfish Console：

    阐明：
    jellyfish 服务端从 agent 端承受来的每行日志数据会保留在 es 里。

如何对接 Spring Boot 或 Spring Cloud 我的项目，统计 HTTP 接口指标？
你的利用须要：

  1. 批改你的 pom.xml, 增加：

    <dependency>
<artifactId>jellyfish-http-spring-boot-starter</artifactId>
<groupId>com.github.paganini2008.atlantis</groupId>
<version>1.0-RC1</version>
</dependency>

  2. 在 application.properties 退出：

    atlantis.framework.jellyfish.brokerUrl=http://localhost:6100  # Jellyfish console 地址
  3. 应用压测工具测试某一个接口，如图：
    接口列表：

    点击 View

    上图显示的是并发度，QPS, 均匀响应工夫

    上图显示的是响应工夫面积图

    上图显示的是接口调用次数面积图

按 F12，查看返回的 json 数据：

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}

Jellyfish 接口统计局部调用了 vortex 的 metric 模块的 sdk,，所以是基于工夫序列的，默认统计工夫窗口是 1 分钟，滚动保留前 60 条数据，历史数据默认不落地，但能够通过实现 MetricEvictionHandler 和 MetricSequencerFactory 接口进行扩大，参考 vortex metrics

最初，Jellyfish 服务端的参考配置：

server.port=6100

spring.application.name=jellyfish-console
spring.application.cluster.name=jellyfish-console-cluster

#management.endpoints.web.exposure.include=*
#management.endpoint.health.show-details=always
#management.security.enabled=false
#spring.boot.admin.client.url=http://localhost:10081

atlantis.framework.vortex.bufferzone.collectionName=jellyfish
atlantis.framework.vortex.bufferzone.pullSize=100

#Elasticsearch Configuration
spring.data.elasticsearch.cluster-name=es
spring.data.elasticsearch.cluster-nodes=localhost:9300
spring.data.elasticsearch.repositories.enabled=true
spring.data.elasticsearch.properties.transport.tcp.connect_timeout=60s

#Redis Configuration
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=123456
spring.redis.dbIndex=0

具体更具体的参数设置请参考：https://github.com/paganini20…

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2021-06-23
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