Dubbo应用启动与关闭流程日志剖析——Annotation配置

基于 INFO 日志,了解Dubbo应用的启动与关闭流程,对使用有帮助,为源码剖析做准备。

示例项目源码:spring-boot-rpc-dubbo-provider-annotationspring-boot-rpc-dubbo-consumer-annotation

1. Service Provider

线程名称描述(实例化方法)

main:应用主线程
Dubbo-Holder:Dubbo持有线程(DubboHolderListener.onApplicationEvent)
main-SendThread(127.0.0.1:2181):ZooKeeper线程,服务传出的请求队列并生成心跳检查(ClientCnxn.ClientCnxn() -> ClientCnxn.SendThread)
main-EventThread:ZooKeeper配置数据事件处理线程(ClientCnxn.ClientCnxn() -> ClientCnxn.EventThread)
DubboServerHandler-{ip:port}-thread-{num}:Dubbo服务端处理程序(NettyServer.NettyServer)
DubboShutdownHook:基于JVM关闭钩子的Dubbo关闭线程(AbstractConfig.java:76)
Thread-{num}:基于JVM关闭钩子的Spring应用上下文关闭线程(AbstractApplicationContext.registerShutdownHook)
New I/O worker #1:Netty工作线程

启动步骤

0. 'Dubbo持有线程'开始运行
1. 应用上下文扫描Dubbo服务提供者的@Service注解组件定义
2. 暴露Dubbo服务提供者为URL
3. 开始注册Dubbo服务提供者URL到注册中心(registry)
4. 启动绑定到20880端口的Netty服务器
5. 加载本地注册中心存储文件数据
6. 建立与注册中心的套接字连接会话
  1. 注册Dubbo服务提供者URL
  2. 订阅Dubbo服务提供者URL
  3. 通知订阅Dubbo服务提供者URL的URL列表
8. Zookeeper客户端收到新的配置事件

关闭步骤

0. 现在运行Dubbo关闭钩子(DubboShutdownHook)
1. 关闭应用上下文
2. 关闭所有注册中心
3. 销毁某个注册中心
  1. 销毁注销的Dubbo服务提供者URL
  2. 销毁取消订阅的Dubbo服务提供者URL
  3. ZooKeeper会话已关闭
  4. ZooKeeper事件处理线程关闭会话
4. 关闭Dubbo服务器
  1. 关闭绑定到20880端口的Netty服务器
  2. 所有客户端套接字连接都已断开,现在可以优雅地关闭(Dubbo服务器)
  3. 连接断开来自某客户端的某服务URL
  4. 注销暴露的Dubbo服务
5. 应用上下文停止组件

日志

# Spring Boot横幅,包括其版本
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.7.RELEASE)

# 日志记录器工厂(log4j)
2017-10-06 17:18:47.196 [main] INFO  c.a.d.common.logger.LoggerFactory - using logger: com.alibaba.dubbo.common.logger.log4j.Log4jLoggerAdapter
# 在哪台机器(dannongdeMacBook-Pro.local)上使用哪个进程(PID 11654)启动哪个应用入口类(DubboAnnotationProviderApplication),包括应用所在目录
2017-10-06 17:18:52.280 [main] INFO  s.g.d.DubboAnnotationProviderApplication - Starting DubboAnnotationProviderApplication on dannongdeMacBook-Pro.local with PID 11654 (/Users/dannong/Documents/workspace/GitHub/spring-guides/spring-boot-rpc-soa-dubbo-provider-annotation/target/classes started by dannong in /Users/dannong/Documents/workspace/GitHub/spring-guides)
# 配置文件(profile)设置
2017-10-06 17:18:52.281 [main] INFO  s.g.d.DubboAnnotationProviderApplication - No active profile set, falling back to default profiles: default
### ======= Dubbo =======
# 'Dubbo持有线程'开始运行(DubboHolderListener)
Dubbo-Holder
# 刷新'基于注解配置的应用上下文(AnnotationConfigApplicationContext)',上下文层次结构的根
2017-10-06 17:18:52.349 [main] INFO  o.s.c.a.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@19d37183: startup date [Fri Oct 06 17:18:52 CST 2017]; root of context hierarchy
# 日志记录器工厂(slf4j)
2017-10-06 17:18:52.963 [main] INFO  c.a.d.common.logger.LoggerFactory - using logger: com.alibaba.dubbo.common.logger.slf4j.Slf4jLoggerAdapter
# 暴露Dubbo服务提供者到本地(本地调用/本地服务)
2017-10-06 17:19:03.677 [main] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Export dubbo service spring.guides.dubbo.service.DemoService to local registry, dubbo version: 2.5.5, current host: 127.0.0.1
# 暴露Dubbo服务提供者为URL(dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?anyhost=true&application=xxx&side=provider)
2017-10-06 17:19:03.677 [main] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Export dubbo service spring.guides.dubbo.service.DemoService to url dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 开始注册Dubbo服务提供者URL到注册中心(registry://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?group=dubbo_develop&registry=zookeeper)
2017-10-06 17:19:03.678 [main] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Register dubbo service spring.guides.dubbo.service.DemoService url dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597 to registry registry://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=spring-boot-rpc-soa-dubbo-annotation-provider&check=true&client=curator&dubbo=2.5.5&file=/Users/dannong/.dubbo/registry.cache&group=dubbo_develop&logger=slf4j&organization=middle-ware&owner=dannong&pid=11654&registry=zookeeper&timestamp=1507281533442, dubbo version: 2.5.5, current host: 127.0.0.1
# 启动绑定到20880端口(/0.0.0.0:20880)的Netty服务器(NettyServer),暴露服务器通讯地址(/10.1.112.138:20880)
2017-10-06 17:19:03.886 [main] INFO  c.a.d.r.transport.AbstractServer -  [DUBBO] Start NettyServer bind /0.0.0.0:20880, export /10.1.112.138:20880, dubbo version: 2.5.5, current host: 127.0.0.1
# 加载本地注册中心存储文件数据(xxx.DemoService=empty://10.1.112.138/xxx.DemoService?category=configurators&side=consumer empty://xxx/xxx.DemoService?category=routers&side=consumer dubbo://10.1.112.138:20880/xxx.DemoService?side=provider)
2017-10-06 17:19:03.904 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Load registry store file /Users/dannong/.dubbo/registry.cache, data: {spring.guides.dubbo.service.DemoService=empty://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-consumer&category=configurators&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&pid=11606&side=consumer&timestamp=1507281010835 empty://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-consumer&category=routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&pid=11606&side=consumer&timestamp=1507281010835 dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accepts=0&accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&pid=11546&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507280828592}, dubbo version: 2.5.5, current host: 127.0.0.1
### ======= Zookeeper客户端 =======
# 启动Zookeeper注册中心的Curator客户端
2017-10-06 17:19:09.054 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting
# ZooKeeper客户端环境(ZK版本、主机名称、JDK信息、OS信息、用户信息、OS内存信息)
2017-10-06 17:19:14.138 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60, built on 04/03/2017 16:19 GMT
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=10.1.112.138
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_112
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_112.jdk/Contents/Home/jre
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=.../lib/rt.jar:.../lib/tools.jar:.../spring-guides/spring-boot-rpc-soa-dubbo-provider-xml/target/classes:.../spring-guides/spring-boot-rpc-soa-api/target/classes:.../.m2/repository/com/alibaba/dubbo/2.5.5/dubbo-2.5.5.jar:/Users/dannong/.m2/repository/org/springframework/boot/spring-boot-starter/1.5.7.RELEASE/spring-boot-starter-1.5.7.RELEASE.jar
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/dannong/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/0y/kzmh046n3bqb07pwdrq_zy_r0000gn/T/
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA>
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64
2017-10-06 17:19:14.139 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.12
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=dannong
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/dannong
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/dannong/Documents/workspace/GitHub/spring-guides
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=61MB
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=1820MB
2017-10-06 17:19:14.140 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=86MB
# 初始化客户端连接,包括连接字符串、会话超时、观察者状态
2017-10-06 17:19:14.142 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=127.0.0.1:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@18e7143f
# 客户端连接套接字
2017-10-06 17:19:14.148 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes
# 打开到ZooKeeper服务器(127.0.0.1/127.0.0.1:2181)的套接字连接(ClientCnxn:管理客户端与服务端的连接)
2017-10-06 17:19:14.157 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
# 使用默认的协议模式
2017-10-06 17:19:14.164 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema
# 注册Dubbo服务提供者URL
2017-10-06 17:19:14.165 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Register: dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 套接字连接已建立,初始化客户端与服务端的会话(/127.0.0.1:55194 -> 127.0.0.1/127.0.0.1:2181)
2017-10-06 17:19:14.166 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /127.0.0.1:55194, server: 127.0.0.1/127.0.0.1:2181
# ZooKeeper服务器(127.0.0.1/127.0.0.1:2181)上的会话建立完成
2017-10-06 17:19:14.176 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x15ee6ce79200024, negotiated timeout = 40000
# 会话状态变换为已连接(CONNECTED)
2017-10-06 17:19:14.182 [main-EventThread] INFO  o.a.c.f.state.ConnectionStateManager - State change: CONNECTED
# 收到新的配置事件(数据:{})
2017-10-06 17:19:14.192 [main-EventThread] INFO  o.a.c.framework.imps.EnsembleTracker - New config event received: {}
# 订阅Dubbo服务提供者URL(provider://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?application=xxx&category=configurators&side=provider)
2017-10-06 17:19:14.197 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Subscribe: provider://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&category=configurators&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 通知订阅Dubbo服务提供者URL(provider://xxx)的URL列表(empty://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?category=configurators&side=provider)
2017-10-06 17:19:14.205 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Notify urls for subscribe url provider://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&category=configurators&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, urls: [empty://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&category=configurators&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597], dubbo version: 2.5.5, current host: 127.0.0.1
# 在启动时为JMX暴露注册组件
2017-10-06 17:19:14.252 [main] INFO  o.s.j.e.a.AnnotationMBeanExporter - Registering beans for JMX exposure on startup
# 应用已启动
2017-10-06 17:19:14.269 [main] INFO  s.g.d.DubboAnnotationProviderApplication - Started DubboAnnotationProviderApplication in 37.655 seconds (JVM running for 38.91)
# 收到新的配置事件
2017-10-06 17:19:15.168 [main-EventThread] INFO  o.a.c.framework.imps.EnsembleTracker - New config event received: {}


# Dubbo服务访问日志,包括消费方地址(192.168.1.2:51855)、服务方法及参数值
2017-10-06 17:23:41.810 [DubboServerHandler-10.1.112.138:20880-thread-1] INFO  d.a.s.g.dubbo.service.DemoService -  [DUBBO] [2017-10-06 17:23:41] 10.1.112.138:55206 -> 10.1.112.138:20880 - spring.guides.dubbo.service.DemoService sayHello(java.lang.String) ["dannong"], dubbo version: 2.5.5, current host: 127.0.0.1
2017-10-06 17:23:55.238 [DubboServerHandler-10.1.112.138:20880-thread-1] INFO  d.a.s.g.dubbo.service.DemoService -  [DUBBO] [2017-10-06 17:23:55] 10.1.112.138:55206 -> 10.1.112.138:20880 - spring.guides.dubbo.service.DemoService sayHello(java.lang.String) ["dannong"], dubbo version: 2.5.5, current host: 127.0.0.1
2017-10-06 17:23:55.794 [DubboServerHandler-10.1.112.138:20880-thread-1] INFO  d.a.s.g.dubbo.service.DemoService -  [DUBBO] [2017-10-06 17:23:55] 10.1.112.138:55206 -> 10.1.112.138:20880 - spring.guides.dubbo.service.DemoService sayHello(java.lang.String) ["dannong"], dubbo version: 2.5.5, current host: 127.0.0.1


### ======= 关闭Dubbo应用 =======
# 现在运行Dubbo关闭钩子
2017-10-06 17:24:27.004 [DubboShutdownHook] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Run shutdown hook now., dubbo version: 2.5.5, current host: 127.0.0.1
# 关闭'基于注解配置的应用上下文(AnnotationConfigApplicationContext)',上下文层次结构的根
2017-10-06 17:24:27.006 [Thread-2] INFO  o.s.c.a.AnnotationConfigApplicationContext - Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@19d37183: startup date [Fri Oct 06 17:18:52 CST 2017]; root of context hierarchy
# 关闭所有注册中心(zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?group=dubbo_develop)
2017-10-06 17:24:27.007 [DubboShutdownHook] INFO  c.a.d.r.s.AbstractRegistryFactory -  [DUBBO] Close all registries [zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=spring-boot-rpc-soa-dubbo-annotation-provider&check=true&client=curator&dubbo=2.5.5&file=/Users/dannong/.dubbo/registry.cache&group=dubbo_develop&interface=com.alibaba.dubbo.registry.RegistryService&logger=slf4j&organization=middle-ware&owner=dannong&pid=11654&timestamp=1507281533442], dubbo version: 2.5.5, current host: 127.0.0.1
# 销毁某个注册中心(zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?group=dubbo_develop)
2017-10-06 17:24:27.007 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy registry:zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=spring-boot-rpc-soa-dubbo-annotation-provider&check=true&client=curator&dubbo=2.5.5&file=/Users/dannong/.dubbo/registry.cache&group=dubbo_develop&interface=com.alibaba.dubbo.registry.RegistryService&logger=slf4j&organization=middle-ware&owner=dannong&pid=11654&timestamp=1507281533442, dubbo version: 2.5.5, current host: 127.0.0.1
# 销毁注销的Dubbo服务提供者URL(dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?application=xxx&side=provider)
2017-10-06 17:24:27.008 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy unregister url dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 销毁取消订阅的Dubbo服务提供者URL(provider://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?application=xxx&category=configurators&side=provider)
2017-10-06 17:24:27.008 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy unsubscribe url provider://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&category=configurators&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 在关闭时注销JMX暴露的组件
2017-10-06 17:24:27.009 [Thread-2] INFO  o.s.j.e.a.AnnotationMBeanExporter - Unregistering JMX-exposed beans on shutdown
# 退出Curator后台操作循环
2017-10-06 17:24:27.009 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting
# ZooKeeper会话已关闭
2017-10-06 17:24:27.020 [DubboShutdownHook] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x15ee6ce79200024 closed
# 关闭Dubbo服务器(/10.1.112.138:20880)
2017-10-06 17:24:27.020 [DubboShutdownHook] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] Close dubbo server: /10.1.112.138:20880, dubbo version: 2.5.5, current host: 127.0.0.1
# ZooKeeper事件处理线程关闭会话
2017-10-06 17:24:27.021 [main-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x15ee6ce79200024
# 关闭绑定到20880端口(/0.0.0.0:20880)的Netty服务器
2017-10-06 17:24:27.025 [DubboShutdownHook] INFO  c.a.d.r.transport.AbstractServer -  [DUBBO] Close NettyServer bind /0.0.0.0:20880, export /10.1.112.138:20880, dubbo version: 2.5.5, current host: 127.0.0.1
# 所有客户端套接字连接都已断开,现在可以优雅地关闭(Dubbo服务器)
2017-10-06 17:24:27.025 [New I/O worker #1] WARN  c.a.d.r.transport.AbstractServer -  [DUBBO] All clients has discontected from /10.1.112.138:20880. You can graceful shutdown now., dubbo version: 2.5.5, current host: 127.0.0.1
# 连接断开来自某客户端(/10.1.112.138:55206)的某服务URL(dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?channel.readonly.sent=true&codec=dubbo&side=provider)
2017-10-06 17:24:27.026 [DubboSharedHandler-thread-1] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] disconected from /10.1.112.138:55206,url:dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&channel.readonly.sent=true&codec=dubbo&dubbo=2.5.5&generic=false&heartbeat=60000&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 注销暴露的Dubbo服务(dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?side=provider)
2017-10-06 17:24:27.031 [DubboShutdownHook] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] Unexport service: dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1
# 注销暴露的Dubbo服务(injvm://127.0.0.1/spring.guides.dubbo.service.DemoService?side=provider)
2017-10-06 17:24:27.031 [DubboShutdownHook] INFO  c.a.d.r.protocol.injvm.InjvmProtocol -  [DUBBO] Unexport service: injvm://127.0.0.1/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, dubbo version: 2.5.5, current host: 127.0.0.1

# 应用进程完成退出
Process finished with exit code 130 (interrupted by signal 2: SIGINT)

2. Service Consumer

线程名称描述(实例化方法)

main:应用主线程
background-preinit:以后台线程的方式触发Spring Boot应用的早期初始化过程(BackgroundPreinitializer.onApplicationEvent)
Dubbo-Holder:Dubbo持有线程(DubboHolderListener.onApplicationEvent)
localhost-startStop-1:处理Tomcat容器的启动和停止事件的线程(ContainerBase.initInternal)
main-SendThread(127.0.0.1:2181):ZooKeeper线程,服务传出的请求队列并生成心跳检查(ClientCnxn.ClientCnxn() -> ClientCnxn.SendThread)
main-EventThread:ZooKeeper配置数据事件处理线程(ClientCnxn.ClientCnxn() -> ClientCnxn.EventThread)
http-nio-8080-exec-{num}:Tomcat执行请求的任务线程(AbstractProtocol.getName -> Http11NioProtocol.getNamePrefix)
DubboSharedHandler-thread-1:共享的执行器服务(WrappedChannelHandler.SHARED_EXECUTOR)
DubboShutdownHook:基于JVM关闭钩子的Dubbo关闭线程(AbstractConfig.java:76)
Thread-{num}:基于JVM关闭钩子的Spring应用上下文关闭线程(AbstractApplicationContext.registerShutdownHook)

启动步骤

0. 'Dubbo持有线程'开始运行
1. Web应用上下文扫描Dubbo服务消费者的@Reference注解组件定义
2. 加载本地注册中心存储文件数据
3. 建立与注册中心的套接字连接会话
  1. 注册Dubbo服务消费者URL
  2. 订阅Dubbo服务消费者URL
  3. 通知订阅Dubbo服务消费者URL的URL列表
4. 启动Netty客户端连接到Dubbo服务器
5. 从注册中心URL引用Dubbo服务

关闭步骤

0. 现在运行Dubbo关闭钩子(DubboShutdownHook)
1. 关闭所有注册中心
2. 销毁某个注册中心
  1. 销毁注销的Dubbo服务消费者URL
  2. 销毁取消订阅的Dubbo服务消费者URL
  3. ZooKeeper会话已关闭
  4. ZooKeeper事件处理线程关闭会话
3. 关闭Web应用上下文
4. 在阶段0中停止组件(默认的组件生命周期处理程序)
5. 关闭Netty通信通道
6. 关闭Dubbo连接

日志

dubbo-consumer-annotation.log.md

# Spring Boot横幅,包括其版本
  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.7.RELEASE)

# 日志记录器工厂(log4j)
2017-10-06 17:22:17.539 [main] INFO  c.a.d.common.logger.LoggerFactory - using logger: com.alibaba.dubbo.common.logger.log4j.Log4jLoggerAdapter
# 校验器版本(Hibernate Validator 5.3.5.Final)
2017-10-06 17:22:18.044 [background-preinit] INFO  o.h.validator.internal.util.Version - HV000001: Hibernate Validator 5.3.5.Final
# 在哪台机器(dannongdeMacBook-Pro.local)上使用哪个进程(PID 11673)启动哪个应用入口类(DubboAnnotationConsumerApplication),包括应用所在目录
2017-10-06 17:22:22.633 [main] INFO  s.g.d.DubboAnnotationConsumerApplication - Starting DubboAnnotationConsumerApplication on dannongdeMacBook-Pro.local with PID 11673 (/Users/dannong/Documents/workspace/GitHub/spring-guides/spring-boot-rpc-soa-dubbo-consumer-annotation/target/classes started by dannong in /Users/dannong/Documents/workspace/GitHub/spring-guides)
# 配置文件(profile)设置
2017-10-06 17:22:22.633 [main] INFO  s.g.d.DubboAnnotationConsumerApplication - No active profile set, falling back to default profiles: default
### ======= Dubbo =======
# 'Dubbo持有线程'开始运行(DubboHolderListener)
Dubbo-Holder
# 刷新'基于注解配置嵌入的Web应用上下文(AnnotationConfigEmbeddedWebApplicationContext)',上下文层次结构的根
2017-10-06 17:22:22.698 [main] INFO  o.s.b.c.e.AnnotationConfigEmbeddedWebApplicationContext - Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@184cf7cf: startup date [Fri Oct 06 17:22:22 CST 2017]; root of context hierarchy
### ======= Tomcat =======
2017-10-06 17:22:24.763 [main] INFO  o.s.b.c.e.t.TomcatEmbeddedServletContainer - Tomcat initialized with port(s): 8080 (http)
2017-10-06 17:22:24.784 [main] INFO  o.a.catalina.core.StandardService - Starting service [Tomcat]
2017-10-06 17:22:24.786 [main] INFO  o.a.catalina.core.StandardEngine - Starting Servlet Engine: Apache Tomcat/8.5.20
2017-10-06 17:22:24.951 [localhost-startStop-1] INFO  o.a.c.c.C.[Tomcat].[localhost].[/] - Initializing Spring embedded WebApplicationContext
2017-10-06 17:22:24.952 [localhost-startStop-1] INFO  o.s.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 2254 ms
2017-10-06 17:22:25.358 [localhost-startStop-1] INFO  o.s.b.w.s.ServletRegistrationBean - Mapping servlet: 'dispatcherServlet' to [/]
2017-10-06 17:22:25.364 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'metricsFilter' to: [/*]
2017-10-06 17:22:25.365 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'characterEncodingFilter' to: [/*]
2017-10-06 17:22:25.366 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2017-10-06 17:22:25.366 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'httpPutFormContentFilter' to: [/*]
2017-10-06 17:22:25.367 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'requestContextFilter' to: [/*]
2017-10-06 17:22:25.367 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'webRequestLoggingFilter' to: [/*]
2017-10-06 17:22:25.367 [localhost-startStop-1] INFO  o.s.b.w.s.FilterRegistrationBean - Mapping filter: 'applicationContextIdFilter' to: [/*]
# 日志记录器工厂(slf4j)
2017-10-06 17:22:25.865 [main] INFO  c.a.d.common.logger.LoggerFactory - using logger: com.alibaba.dubbo.common.logger.slf4j.Slf4jLoggerAdapter
# 加载本地注册中心存储文件数据(xxx.DemoService=empty://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?category=configurators&side=provider)
2017-10-06 17:22:31.024 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Load registry store file /Users/dannong/.dubbo/registry.cache, data: {spring.guides.dubbo.service.DemoService=empty://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&category=configurators&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597}, dubbo version: 2.5.5, current host: 127.0.0.1
### ======= Zookeeper客户端 =======
# 启动Zookeeper注册中心的Curator客户端
2017-10-06 17:22:36.276 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Starting
# ZooKeeper客户端环境(ZK版本、主机名称、JDK信息、OS信息、用户信息、OS内存信息)
2017-10-06 17:22:41.357 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:zookeeper.version=3.5.3-beta-8ce24f9e675cbefffb8f21a47e06b42864475a60, built on 04/03/2017 16:19 GMT
2017-10-06 17:22:41.358 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:host.name=10.1.112.138
2017-10-06 17:22:41.358 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.version=1.8.0_112
2017-10-06 17:22:41.358 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.vendor=Oracle Corporation
2017-10-06 17:22:41.358 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_112.jdk/Contents/Home/jre
2017-10-06 17:22:41.358 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.class.path=.../lib/rt.jar:.../lib/tools.jar:.../spring-guides/spring-boot-rpc-soa-dubbo-provider-xml/target/classes:.../spring-guides/spring-boot-rpc-soa-api/target/classes:.../.m2/repository/com/alibaba/dubbo/2.5.5/dubbo-2.5.5.jar:/Users/dannong/.m2/repository/org/springframework/boot/spring-boot-starter/1.5.7.RELEASE/spring-boot-starter-1.5.7.RELEASE.jar
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.library.path=/Users/dannong/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.io.tmpdir=/var/folders/0y/kzmh046n3bqb07pwdrq_zy_r0000gn/T/
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:java.compiler=<NA>
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.name=Mac OS X
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.arch=x86_64
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.version=10.12
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.name=dannong
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.home=/Users/dannong
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:user.dir=/Users/dannong/Documents/workspace/GitHub/spring-guides
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.free=85MB
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.max=1820MB
2017-10-06 17:22:41.359 [main] INFO  org.apache.zookeeper.ZooKeeper - Client environment:os.memory.total=173MB
# 初始化客户端连接,包括连接字符串、会话超时、观察者状态
2017-10-06 17:22:41.362 [main] INFO  org.apache.zookeeper.ZooKeeper - Initiating client connection, connectString=127.0.0.1:2181 sessionTimeout=60000 watcher=org.apache.curator.ConnectionState@3d36dff4
# 客户端连接套接字
2017-10-06 17:22:41.372 [main] INFO  o.apache.zookeeper.ClientCnxnSocket - jute.maxbuffer value is 4194304 Bytes
# 打开到ZooKeeper服务器(127.0.0.1/127.0.0.1:2181)的套接字连接(ClientCnxn:管理客户端与服务端的连接)
2017-10-06 17:22:41.384 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Opening socket connection to server 127.0.0.1/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
# 使用默认的协议模式
2017-10-06 17:22:41.391 [main] INFO  o.a.c.f.imps.CuratorFrameworkImpl - Default schema
# 套接字连接已建立,初始化客户端与服务端的会话(/127.0.0.1:55205 -> 127.0.0.1/127.0.0.1:2181)
2017-10-06 17:22:41.407 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Socket connection established, initiating session, client: /127.0.0.1:55205, server: 127.0.0.1/127.0.0.1:2181
# ZooKeeper服务器(127.0.0.1/127.0.0.1:2181)上的会话建立完成
2017-10-06 17:22:41.420 [main-SendThread(127.0.0.1:2181)] INFO  org.apache.zookeeper.ClientCnxn - Session establishment complete on server 127.0.0.1/127.0.0.1:2181, sessionid = 0x15ee6ce79200025, negotiated timeout = 40000
# 会话状态变换为已连接(CONNECTED)
2017-10-06 17:22:41.427 [main-EventThread] INFO  o.a.c.f.state.ConnectionStateManager - State change: CONNECTED
# 收到新的配置事件(数据:{})
2017-10-06 17:22:41.438 [main-EventThread] INFO  o.a.c.framework.imps.EnsembleTracker - New config event received: {}
# 收到新的配置事件(数据:{})
2017-10-06 17:22:42.393 [main-EventThread] INFO  o.a.c.framework.imps.EnsembleTracker - New config event received: {}
# 注册Dubbo服务消费者URL(
consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=xxx&category=consumers&side=consumer, 当前主机: 10.1.112.138)
2017-10-06 17:22:46.489 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Register: consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=consumers&check=false&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138
# 订阅Dubbo服务消费者URL(consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=xxx&category=providers,configurators,routers&side=consumer)
2017-10-06 17:22:46.519 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Subscribe: consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=providers,configurators,routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138
# 通知订阅Dubbo服务消费者URL(consumer://xxx)的URL列表(dubbo://xxx/xxx.DemoService?side=provider、empty://10.1.112.138/xxx.DemoService?category=configurators&side=consumer、empty://10.1.112.138/xxx.DemoService?category=routers&side=consumer)
2017-10-06 17:22:46.538 [main] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Notify urls for subscribe url consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=providers,configurators,routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, urls: [dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-provider&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11654&retries=1&side=provider&threadpool=cached&threads=100&timeout=1000&timestamp=1507281543597, empty://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=configurators&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, empty://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885], dubbo version: 2.5.5, current host: 10.1.112.138
# 从Netty客户端(10.1.112.1382)成功地连接到Dubbo服务器(/10.1.112.138:20880),通信通道使用Netty通道(/10.1.112.138:55206 => /10.1.112.138:20880)
2017-10-06 17:22:46.726 [main] INFO  c.a.d.r.transport.AbstractClient -  [DUBBO] Successed connect to server /10.1.112.138:20880 from NettyClient 10.1.112.138 using dubbo version 2.5.5, channel is NettyChannel [channel=[id: 0x40c10b04, /10.1.112.138:55206 => /10.1.112.138:20880]], dubbo version: 2.5.5, current host: 10.1.112.138
# 启动Netty客户端(dannongdeMacBook-Pro.local/10.1.112.138)连接到Dubbo服务器(/10.1.112.138:20880)
2017-10-06 17:22:46.729 [main] INFO  c.a.d.r.transport.AbstractClient -  [DUBBO] Start NettyClient dannongdeMacBook-Pro.local/10.1.112.138 connect to the server /10.1.112.138:20880, dubbo version: 2.5.5, current host: 10.1.112.138
# 从注册中心URL引用Dubbo服务(zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?anyhost=true&application=xxx&interface=spring.guides.dubbo.service.DemoService&side=consumer)
2017-10-06 17:22:46.836 [main] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Refer dubbo service spring.guides.dubbo.service.DemoService from url zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-consumer&check=false&dubbo=2.5.5&generic=false&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11673&retries=1&side=consumer&timeout=1000&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138

2017-10-06 17:22:57.420 [main] INFO  o.a.c.c.C.[Tomcat].[localhost].[/] - jolokia: No access restrictor found, access to any MBean is allowed
### ======= Spring MVC =======
# 寻找@ControllerAdvice
2017-10-06 17:22:57.757 [main] INFO  o.s.w.s.m.m.a.RequestMappingHandlerAdapter - Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@184cf7cf: startup date [Fri Oct 06 17:22:22 CST 2017]; root of context hierarchy
2017-10-06 17:22:57.940 [main] INFO  o.s.w.s.m.m.a.RequestMappingHandlerMapping - Mapped "{[/demo/say],methods=[GET],produces=[application/json;charset=UTF-8]}" onto public java.lang.String spring.guides.dubbo.controller.AnnotationDemoController.say(java.lang.String)
2017-10-06 17:22:57.946 [main] INFO  o.s.w.s.m.m.a.RequestMappingHandlerMapping - Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2017-10-06 17:22:57.947 [main] INFO  o.s.w.s.m.m.a.RequestMappingHandlerMapping - Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2017-10-06 17:22:58.000 [main] INFO  o.s.w.s.h.SimpleUrlHandlerMapping - Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-10-06 17:22:58.001 [main] INFO  o.s.w.s.h.SimpleUrlHandlerMapping - Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-10-06 17:22:58.059 [main] INFO  o.s.w.s.h.SimpleUrlHandlerMapping - Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2017-10-06 17:22:58.618 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/dump || /dump.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.625 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/heapdump || /heapdump.json],methods=[GET],produces=[application/octet-stream]}" onto public void org.springframework.boot.actuate.endpoint.mvc.HeapdumpMvcEndpoint.invoke(boolean,javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.io.IOException,javax.servlet.ServletException
2017-10-06 17:22:58.626 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/beans || /beans.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.628 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/mappings || /mappings.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.630 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/loggers/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.get(java.lang.String)
2017-10-06 17:22:58.631 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/loggers/{name:.*}],methods=[POST],consumes=[application/vnd.spring-boot.actuator.v1+json || application/json],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.LoggersMvcEndpoint.set(java.lang.String,java.util.Map<java.lang.String, java.lang.String>)
2017-10-06 17:22:58.631 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/loggers || /loggers.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.635 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/metrics/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.MetricsMvcEndpoint.value(java.lang.String)
2017-10-06 17:22:58.635 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/metrics || /metrics.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.637 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/jolokia/**]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.actuate.endpoint.mvc.JolokiaMvcEndpoint.handle(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) throws java.lang.Exception
2017-10-06 17:22:58.638 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/info || /info.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.640 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/autoconfig || /autoconfig.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.641 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/configprops || /configprops.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.642 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/trace || /trace.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
2017-10-06 17:22:58.643 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/health || /health.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.HealthMvcEndpoint.invoke(javax.servlet.http.HttpServletRequest,java.security.Principal)
2017-10-06 17:22:58.644 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/auditevents || /auditevents.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public org.springframework.http.ResponseEntity<?> org.springframework.boot.actuate.endpoint.mvc.AuditEventsMvcEndpoint.findByPrincipalAndAfterAndType(java.lang.String,java.util.Date,java.lang.String)
2017-10-06 17:22:58.653 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/env/{name:.*}],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EnvironmentMvcEndpoint.value(java.lang.String)
2017-10-06 17:22:58.654 [main] INFO  o.s.b.a.e.mvc.EndpointHandlerMapping - Mapped "{[/env || /env.json],methods=[GET],produces=[application/vnd.spring-boot.actuator.v1+json || application/json]}" onto public java.lang.Object org.springframework.boot.actuate.endpoint.mvc.EndpointMvcAdapter.invoke()
# 在启动时为JMX暴露注册组件
2017-10-06 17:22:58.882 [main] INFO  o.s.j.e.a.AnnotationMBeanExporter - Registering beans for JMX exposure on startup
2017-10-06 17:22:58.896 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Registering beans for JMX exposure on startup
2017-10-06 17:22:58.903 [main] INFO  o.s.c.s.DefaultLifecycleProcessor - Starting beans in phase 0
2017-10-06 17:22:58.908 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'auditEventsEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=auditEventsEndpoint]
2017-10-06 17:22:58.948 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'requestMappingEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=requestMappingEndpoint]
2017-10-06 17:22:58.977 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'environmentEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=environmentEndpoint]
2017-10-06 17:22:59.001 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'healthEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=healthEndpoint]
2017-10-06 17:22:59.012 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'beansEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=beansEndpoint]
2017-10-06 17:22:59.019 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'infoEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=infoEndpoint]
2017-10-06 17:22:59.027 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'loggersEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=loggersEndpoint]
2017-10-06 17:22:59.039 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'metricsEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=metricsEndpoint]
2017-10-06 17:22:59.043 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'traceEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=traceEndpoint]
2017-10-06 17:22:59.047 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'dumpEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=dumpEndpoint]
2017-10-06 17:22:59.053 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'autoConfigurationReportEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=autoConfigurationReportEndpoint]
2017-10-06 17:22:59.055 [main] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Located managed bean 'configurationPropertiesReportEndpoint': registering with JMX server as MBean [org.springframework.boot:type=Endpoint,name=configurationPropertiesReportEndpoint]
2017-10-06 17:22:59.077 [main] INFO  o.a.coyote.http11.Http11NioProtocol - Initializing ProtocolHandler ["http-nio-8080"]
2017-10-06 17:22:59.093 [main] INFO  o.a.coyote.http11.Http11NioProtocol - Starting ProtocolHandler ["http-nio-8080"]
2017-10-06 17:22:59.097 [main] INFO  o.a.tomcat.util.net.NioSelectorPool - Using a shared selector for servlet write/read
2017-10-06 17:22:59.135 [main] INFO  o.s.b.c.e.t.TomcatEmbeddedServletContainer - Tomcat started on port(s): 8080 (http)
# 应用已启动
2017-10-06 17:22:59.142 [main] INFO  s.g.d.DubboAnnotationConsumerApplication - Started DubboAnnotationConsumerApplication in 52.431 seconds (JVM running for 53.59)


### ======= 请求分发程序 =======
# 初始化Spring框架的请求分发程序
2017-10-06 17:23:41.555 [http-nio-8080-exec-1] INFO  o.a.c.c.C.[Tomcat].[localhost].[/] - Initializing Spring FrameworkServlet 'dispatcherServlet'
2017-10-06 17:23:41.555 [http-nio-8080-exec-1] INFO  o.s.web.servlet.DispatcherServlet - FrameworkServlet 'dispatcherServlet': initialization started
2017-10-06 17:23:41.578 [http-nio-8080-exec-1] INFO  o.s.web.servlet.DispatcherServlet - FrameworkServlet 'dispatcherServlet': initialization completed in 23 ms


### ======= Dubbo服务提供方某JVM实例关闭 =======
# 通知订阅Dubbo服务消费者URL(consumer://xxx)的URL列表(empty://10.1.112.138/spring.guides.dubbo.service.DemoService?category=providers&side=consumer)
2017-10-06 17:24:27.022 [main-EventThread] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Notify urls for subscribe url consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=providers,configurators,routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, urls: [empty://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=providers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885], dubbo version: 2.5.5, current host: 10.1.112.138
# 关闭Netty通信通道(/10.1.112.138:55206 => /10.1.112.138:20880)
2017-10-06 17:24:27.024 [main-EventThread] INFO  c.a.d.r.transport.netty.NettyChannel -  [DUBBO] Close netty channel [id: 0x40c10b04, /10.1.112.138:55206 => /10.1.112.138:20880], dubbo version: 2.5.5, current host: 10.1.112.138
# 连接断开来自某客户端(/10.1.112.138:20880)的某服务URL(dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?codec=dubbo&side=consumer)
2017-10-06 17:24:27.026 [DubboSharedHandler-thread-1] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] disconected from /10.1.112.138:20880,url:dubbo://10.1.112.138:20880/spring.guides.dubbo.service.DemoService?accesslog=true&anyhost=true&application=spring-boot-rpc-soa-dubbo-annotation-consumer&check=false&codec=dubbo&dubbo=2.5.5&generic=false&heartbeat=60000&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&organization=middle-ware&owner=dannong&pid=11673&retries=1&side=consumer&timeout=1000&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138


### ======= 关闭Dubbo应用 =======
# 现在运行Dubbo关闭钩子
2017-10-06 17:24:35.426 [DubboShutdownHook] INFO  c.a.dubbo.config.AbstractConfig -  [DUBBO] Run shutdown hook now., dubbo version: 2.5.5, current host: 10.1.112.138
# 关闭所有注册中心(zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?group=dubbo_develop)
2017-10-06 17:24:35.426 [DubboShutdownHook] INFO  c.a.d.r.s.AbstractRegistryFactory -  [DUBBO] Close all registries [zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&check=false&client=curator&dubbo=2.5.5&file=/Users/dannong/.dubbo/registry.cache&group=dubbo_develop&interface=com.alibaba.dubbo.registry.RegistryService&logger=slf4j&owner=dannong&pid=11673&timestamp=1507281750985], dubbo version: 2.5.5, current host: 10.1.112.138
# 销毁某个注册中心(zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?group=dubbo_develop)
2017-10-06 17:24:35.427 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy registry:zookeeper://127.0.0.1:2181/com.alibaba.dubbo.registry.RegistryService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&check=false&client=curator&dubbo=2.5.5&file=/Users/dannong/.dubbo/registry.cache&group=dubbo_develop&interface=com.alibaba.dubbo.registry.RegistryService&logger=slf4j&owner=dannong&pid=11673&timestamp=1507281750985, dubbo version: 2.5.5, current host: 10.1.112.138
# 销毁注销的Dubbo服务消费者URL(consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=xxx&category=consumers&side=consumer)
2017-10-06 17:24:35.427 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy unregister url consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=consumers&check=false&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138
# 销毁取消订阅的Dubbo服务消费者URL(consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=xxx&category=providers,configurators,routers&side=consumer)
2017-10-06 17:24:35.427 [DubboShutdownHook] INFO  c.a.d.r.zookeeper.ZookeeperRegistry -  [DUBBO] Destroy unsubscribe url consumer://10.1.112.138/spring.guides.dubbo.service.DemoService?application=spring-boot-rpc-soa-dubbo-annotation-consumer&category=providers,configurators,routers&dubbo=2.5.5&interface=spring.guides.dubbo.service.DemoService&logger=slf4j&methods=sayHello&owner=dannong&pid=11673&side=consumer&timestamp=1507281745885, dubbo version: 2.5.5, current host: 10.1.112.138
# 退出Curator后台操作循环
2017-10-06 17:24:35.428 [Curator-Framework-0] INFO  o.a.c.f.imps.CuratorFrameworkImpl - backgroundOperationsLoop exiting
# 关闭'基于注解配置嵌入的Web应用上下文(AnnotationConfigEmbeddedWebApplicationContext)',上下文层次结构的根
2017-10-06 17:24:35.428 [Thread-3] INFO  o.s.b.c.e.AnnotationConfigEmbeddedWebApplicationContext - Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@184cf7cf: startup date [Fri Oct 06 17:22:22 CST 2017]; root of context hierarchy
# 在阶段0中停止组件(默认的组件生命周期处理程序)
2017-10-06 17:24:35.430 [Thread-3] INFO  o.s.c.s.DefaultLifecycleProcessor - Stopping beans in phase 0
# 在关闭时注销JMX暴露的组件
2017-10-06 17:24:35.433 [Thread-3] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Unregistering JMX-exposed beans on shutdown
2017-10-06 17:24:35.433 [Thread-3] INFO  o.s.b.a.e.jmx.EndpointMBeanExporter - Unregistering JMX-exposed beans
2017-10-06 17:24:35.434 [Thread-3] INFO  o.s.j.e.a.AnnotationMBeanExporter - Unregistering JMX-exposed beans on shutdown
# ZooKeeper会话已关闭
2017-10-06 17:24:35.453 [DubboShutdownHook] INFO  org.apache.zookeeper.ZooKeeper - Session: 0x15ee6ce79200025 closed
# 关闭Dubbo连接(10.1.112.138:0-->10.1.112.138:20880)
2017-10-06 17:24:35.453 [DubboShutdownHook] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] Close dubbo connect: 10.1.112.138:0-->10.1.112.138:20880, dubbo version: 2.5.5, current host: 10.1.112.138
# 关闭Dubbo连接(10.1.112.138:0-->10.1.112.138:20880)
2017-10-06 17:24:35.453 [DubboShutdownHook] INFO  c.a.d.r.protocol.dubbo.DubboProtocol -  [DUBBO] Close dubbo connect: 10.1.112.138:0-->10.1.112.138:20880, dubbo version: 2.5.5, current host: 10.1.112.138
# ZooKeeper事件处理线程关闭会话
2017-10-06 17:24:35.454 [main-EventThread] INFO  org.apache.zookeeper.ClientCnxn - EventThread shut down for session: 0x15ee6ce79200025

# 应用进程完成退出
Process finished with exit code 130 (interrupted by signal 2: SIGINT)

祝玩得开心!ˇˍˇ
云舒,2017.10.9,杭州

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