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部署方式
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。
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系列一共有4个子工程：
- 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-starter Jellyfish核心jar包, 实现了全部的核心功能
Install
<dependency>
<artifactId>jellyfish-spring-boot-starter</artifactId>
<groupId>com.github.paganini2008.atlantis</groupId>
<version>1.0-RC2</version>
</dependency>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
<dependency> <artifactId>jellyfish-slf4j</artifactId> <groupId>com.github.paganini2008.atlantis</groupId> <version>1.0-RC2</version> </dependency>修改logback.xml
<?xml version="1.0" encoding="utf-8" ?> <configuration> <appender name="logTracker" class="indi.atlantis.framework.jellyfish.slf4j.logback.HttpTransportClientAppender"> <applicationName>tester5</applicationName> <!-- 修改成你的applicationName --> <brokerUrl>http://192.168.159.1:10010</brokerUrl> <!-- 修改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" /> <!-- 引用你定义的appender --> </root> </configuration>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/jellyfi... - 再启动你的应用程序，此时日志会源源不断的流入Jellyfish Console：
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。
如何对接Spring Boot或Spring Cloud项目，统计HTTP接口指标？
你的应用需要：
修改你的pom.xml, 添加：
<dependency> <artifactId>jellyfish-http-spring-boot-starter</artifactId> <groupId>com.github.paganini2008.atlantis</groupId> <version>1.0-RC2</version> </dependency>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：
点击【View】，会打开一直统计详情页，页面比较长
首先在在顶部，会看到接口概览和一些统计
接着会看到一些仪表盘：
上图中仪表盘分别显示当前的并发度，QPS, 平均响应时间，接着是两个饼图，分别监控http状态码和接口执行结果
然后往下翻，会看到几个大图，都是按分钟统计的
响应时间统计和QPS统计
最后显示的是接口调用次数统计和Http状态码统计
按F12，查看返回的json数据：
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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=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具体更详细的参数设置请参考：https://github.com/paganini20...
java
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