分布式微服务监控系统Jellyfish使用介绍
Jellyfish是一款轻量级的, 用Java写的, 分布式微服务实时监控系统,可无缝对接Spring Boot或Spring Cloud工程
Jellyfish提供的监控功能主要分为两个部分:
- 应用程序日志统一收集和查询
- 统计和监控SpringBoot应用程序HTTP接口3个指标:请求耗时,错误率,并发度
Jellyfish分为服务端和agent端
服务端通常是一个独立的SpringBoot应用或集群,集群模式是通过另一个微服务分布式协作框架tridenter实现的,Jellyfish服务端还需要部署Redis和ElasticSearch
Agent端 通常是加入了jellyfish相关jar包的另一组SpringBoot应用或集群,它们向服务端实时发送数据包。
【分布式微服务监控系统Jellyfish使用介绍】Jellyfish的特性:
- Jellyfish服务端基于流式计算框架vortex(底层是Netty4),低延迟,高并发,且支持TCP和HTTP两种传输协议
- Jellyfish服务端的网络通信层依赖vortex框架,支持动态水平扩展,支持数据最终一致性
- Jellyfish的应用接口统计是准实时的,纯内存计算,默认的统计时间窗口为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,最大延迟保持在1分钟内,平均延迟在秒级。
- jellyfish-console
Jellyfish Web控制台,可独立运行,通常作为服务端,当然你也可以自定义服务 端,通过使用注解@EnableJellyfishServer - jellyfish-http-spring-boot-starter
jar包,Jellyfish监控应用程序接口进行指标统计的Agent程序包 - jellyfish-slf4j
jar包,Jellyfish对接slf4j(目前只实现了logback对接),统一应用收集日志的
agent程序包
4. jellyfish-spring-boot-starterJellyfish核心jar包, 实现了全部的核心功能
jellyfish-spring-boot-starter
com.github.paganini2008.atlantis
1.0-RC1
Jellyfish-console使用说明
如何对接slf4j, 统一收集日志:
你的应用程序需要:
- pom.xml 添加依赖
jellyfish-slf4j com.github.paganini2008.atlantis 1.0-RC1
- 修改logback.xml
tester5 http://192.168.159.1:10010
目前只支持logback, 未来会支持更多
- 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/
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- 再启动你的应用程序,此时日志会源源不断的流入Jellyfish Console:
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说明:
jellyfish服务端从agent端接受来的每行日志数据会保存在es里。
你的应用需要:
- 修改你的pom.xml, 添加:
jellyfish-http-spring-boot-starter com.github.paganini2008.atlantis 1.0-RC1
- 在application.properties加入:
atlantis.framework.jellyfish.brokerUrl=http://localhost:6100# Jellyfish console地址
- 使用压测工具测试某一个接口,如图:
接口列表:
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点击View
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上图显示的是并发度,QPS, 平均响应时间
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上图显示的是响应时间面积图
文章图片
上图显示的是接口调用次数面积图
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Jellyfish接口统计部分调用了vortex的metric模块的sdk,,所以是基于时间序列的,默认统计时间窗口是1分钟,滚动保存前60条数据,历史数据默认不落地,但可以通过实现MetricEvictionHandler和MetricSequencerFactory接口进行扩展,参考vortex metrics
最后,Jellyfish服务端的参考配置:
server.port=6100spring.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:10081atlantis.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
具体更详细的参数设置请参考:https://github.com/paganini20...
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