dubbo微服务架构

https://cn.dubbo.apache.org/zh-cn/overview/home/

https://help.aliyun.com/zh/edas/developer-reference/dubbo-overview

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1. 安装zookeeper注册中心

官网：https://zookeeper.apache.org/

安装说明：https://zookeeper.apache.org/doc/r3.7.1/zookeeperAdmin.html

1.1 安装java

zookeeper依赖jdk环境

# 安装jdk 1.8
apt update
apt install -y openjdk-8-jdk

1.2 下载zookeeper并解压

wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz
mkdir -p /apps
tar xvf apache-zookeeper-3.7.1-bin.tar.gz -C /apps
ln -s /apps/apache-zookeeper-3.7.1-bin /apps/zookeeper

1.3 修改配置

cd /apps/zookeeper/conf/
cp zoo_sample.cfg zoo.cfg

# cat zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/data/zookeeper/
clientPort=2181
server.1=10.0.0.76:2888:3888
server.2=10.0.0.77:2888:3888
server.3=10.0.0.78:2888:3888

# 分别在不同服务器上创建myid,分别为1、2、3
mkdir -p /data/zookeeper
echo '1' > /data/zookeeper/myid

1.4 启动服务

zookeeper集群需要在20s内完成启动

/apps/zookeeper/bin/zkServer.sh start

1.5 验证集群

节点2为leader，其余节点为follower，集群状态正常

# zk1
[root@zk1 conf]#/apps/zookeeper/bin/zkServer.sh status
/usr/bin/java
ZooKeeper JMX enabled by default
Using config: /apps/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower

[root@zk2 conf]#/apps/zookeeper/bin/zkServer.sh status
/usr/bin/java
ZooKeeper JMX enabled by default
Using config: /apps/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: leader

[root@zk3 conf]#/apps/zookeeper/bin/zkServer.sh status
/usr/bin/java
ZooKeeper JMX enabled by default
Using config: /apps/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost. Client SSL: false.
Mode: follower

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2. 部署provider生产者

部署两台provider，IP：10.0.0.92-93

2.1 安装java环境

依赖java环境

# 安装jdk 1.8
apt update
apt install -y openjdk-8-jdk

2.2 安装skywalking java agent

1. 下载并解压

mkdir /data && cd /data
wget https://archive.apache.org/dist/skywalking/java-agent/9.0.0/apache-skywalking-java-agent-9.0.0.tgz
tar xvf apache-skywalking-java-agent-9.0.0.tgz

2. 配置skywalking agent连接server

vim /data/skywalking-agent/config/agent.config
...
agent.service_name=${SW_AGENT_NAME:dubbo-provider-1}
# provider2
# agent.service_name=${SW_AGENT_NAME:dubbo-provider-2}

agent.namespace=${SW_AGENT_NAMESPACE:dubbo}

# Backend service addresses.	# 后端服务即skywalking-oap平台地址，11800为grpc端口，12800为http端口
collector.backend_service=${SW_AGENT_COLLECTOR_BACKEND_SERVICES:10.0.0.91:11800}

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2.3 准备dubbo-server.jar

dubbo-server.jar

1. 用WinRAR打开，查看config.properties配置内容，再上传至服务器

dubbo.registry=zookeeper://zookeeper1:2181?backup=zookeeper2:2181,zookeeper3:2181

查看

[root@dubbo-server1 ~]#ls /data/dubbo-server.jar 
/data/dubbo-server.jar

2. 配置hosts

cat /etc/hosts
...
# 添加zookeeper集群
10.0.0.76 zookeeper1
10.0.0.77 zookeeper2
10.0.0.78 zookeeper3

2.4 启动服务

java -javaagent:/data/skywalking-agent/skywalking-agent.jar -jar /data/dubbo-server.jar

服务启动日志

2.5 skywalking验证

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3. 部署consumer消费者

IP：10.0.0.94

3.1 安装java环境

依赖java环境

# 安装jdk 1.8
apt update
apt install -y openjdk-8-jdk

3.2 安装skywalking java agent

1. 下载并解压

mkdir /data && cd /data
wget https://archive.apache.org/dist/skywalking/java-agent/9.0.0/apache-skywalking-java-agent-9.0.0.tgz
tar xvf apache-skywalking-java-agent-9.0.0.tgz

2. 配置skywalking agent连接server

vim /data/skywalking-agent/config/agent.config
...
agent.service_name=${SW_AGENT_NAME:dubbo-consumer}

agent.namespace=${SW_AGENT_NAMESPACE:dubbo}

# Backend service addresses.	# 后端服务即skywalking-oap平台地址，11800为grpc端口，12800为http端口
collector.backend_service=${SW_AGENT_COLLECTOR_BACKEND_SERVICES:10.0.0.91:11800}

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3.3 准备dubbo-client.jar

dubbo-client.jar

1. 用WinRAR打开，查看config.properties配置内容，再上传至服务器

dubbo.registry=zookeeper://zookeeper1:2181?backup=zookeeper2:2181,zookeeper3:2181

查看

[root@dubbo-client ~]#ls /data/dubbo-server.jar 
/data/dubbo-client.jar

2. 配置hosts

cat /etc/hosts
...
# 添加zookeeper集群
10.0.0.76 zookeeper1
10.0.0.77 zookeeper2
10.0.0.78 zookeeper3

3.4 启动服务

java -javaagent:/data/skywalking-agent/skywalking-agent.jar -jar /data/dubbo-client.jar

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3.5 skywalking验证

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3.6 zookeeper验证

使用ZooInspector图形工具，验证provider、consumer注册

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4. skywalking验证

4.1 浏览器访问测试页面

测试页面：http://10.0.0.94:8080/hello?name=jack

• consumer服务器日志

• provider服务器日志

服务器1日志

服务器2日志

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4.2 验证skywalking

• skywalking追踪全部服务状态

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• skywalking 拓扑

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• dubbo-consumer服务状态

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• dubbo-provider2服务状态

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• dubbo-consumer实例状态

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• dubbo-consumer 端点状态