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fengjiachun
Jupiter
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Block edited this page
Feb 2, 2018
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概述
Jupiter是一款性能非常不错的, 轻量级的分布式服务框架
功能
支持同步阻塞调用, 异步Future, Callback方式调用
支持单播和广播
支持泛化调用
支持udt (在 v1.2.4 中移除)
同时支持多种序列化/反序列化方式(目前支持protostuff, hessian, kryo, 以及java原生的序列化/反序列化方式)
服务发布/订阅: 基于SPI并可扩展, 提供默认注册中心实现(建议仅用于测试环境), 也支持zookeeper, 支持线上调整已有服务(通过
flightexec
)
软负载均衡: 框架内目前支持
加权轮询
和
加权随机
, 并且loadbalancer可指定到服务粒度
同步/异步调用均支持集群容错(Failover/Fail-safe/Fail-fast)
流量控制: 提供app级别和provider级别两种粒度流控, 支持线上调整(通过
flightexec
)
监控服务: 只能使用telnet, 有点鸡肋, 因为我不会做网页
性能指标度量: log, csv, telnet
链路跟踪: 链路最前端会生成全局唯一的traceId, 后边需要业务代码埋点, 和业务代码之间通过ThreadLocal透传traceId
调用超时设置支持两种粒度: provider级别和方法级别
飞行中调试-flightexec
支持通过spring配置方式集成
用户指南
基本介绍
架构概述
模块简介
传输层工作流程
使用Jupiter
其他文档(包含jupiter的设计和优化历程)
配置说明
属性清单
性能测试
版本变更
v1.0 服务不能单独指定或切换序列化/反序列化的方式, 这不太合理
v1.1 为了同时支持多种序列化方式,
协议头
发生变更, Sign(一个byte)的高地址4位用来标记序列化/反序列化方式, 低地址4位仍然用来表示消息类型
v1.2 模块重新整理
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