哇塞！这是我见过的最牛逼的性能监控系统，集强大功能于一身
selector: ${SW_STORAGE:elasticsearch7}
elasticsearch7:
nameSpace: ${SW_NAMESPACE:""}
clusterNodes: ${SW_STORAGE_ES_CLUSTER_NODES:192.168.100.14:9200,192.168.100.15:9200,192.168.100.19:9200}
2.2.? 安装 Agent
[https://github.com/apache/skywalking/blob/v8.2.0/docs/en/setup/service-agent/java-agent/README.md](
)
将 agent 目录拷贝至各服务所在的机器上
scp -r ./agent chengjs@192.168.100.12:~/
这里，我将它拷贝至各个服务目录下
plugins 是探针用到各种插件，SkyWalking 插件都是即插即用的，可以把 optional-plugins 中的插件放到 plugins 中
修改 agent/config/agent.config 配置文件，也可以通过命令行参数指定
主要是配置服务名称和后端服务地址
agent.service_name=${SW_AGENT_NAME:user-center}
collector.backend_service=${SW_AGENT_COLLECTOR_BACKEND_SERVICES:192.168.100.17:11800}
当然，也可以通过环境变量或系统属性的方式来设置，例如：
export SW_AGENT_COLLECTOR_BACKEND_SERVICES=127.0.0.1:11800
最后，在服务启动的时候用命令行参数 -javaagent 来指定探针
java -javaagent:/path/to/skywalking-agent/skywalking-agent.jar -jar yourApp.jar
例如：
java -javaagent:./agent/skywalking-agent.jar -Dspring.profiles.active=dev -Xms512m -Xmx1024m -jar demo-0.0.1-SNAPSHOT.jar
3.? 启动服务
修改 webapp/webapp.yml 文件，更改端口号及后端服务地址
server:
port: 9000
collector:
path: /graphql
ribbon:
ReadTimeout: 10000
Point to all backend's restHost:restPort, split by ,
listOfServers: 127.0.0.1:12800
启动服务
bin/startup.sh
或者分别依次启动
bin/oapService.sh
bin/webappService.sh
查看 logs 目录下的日志文件，看是否启动成功
浏览器访问 http://127.0.0.1:9000
4. 告警
编辑 alarm-settings.yml 设置告警规则和通知
[https://github.com/apache/skywalking/blob/v8.2.0/docs/en/setup/backend/backend-alarm.md](
)
重点说下告警通知
为了使用钉钉机器人通知，接下来，新建一个项目
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.4.0</version>
</parent>
<groupId>com.wt.monitor</groupId>
<artifactId>skywalking-alarm</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>skywalking-alarm</name>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>alibaba-dingtalk-service-sdk</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.15</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.75</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
可选依赖（不建议引入）
<dependency
<groupId>org.apache.skywalking</groupId>
<artifactId>server-core</artifactId>
<version>8.2.0</version>
</dependency>
定义告警消息实体类
package com.wt.monitor.skywalking.alarm.domain;
import lombok.Data;
import java.io.Serializable;
/**
@author ChengJianSheng
@date 2020/12/1
*/
@Data
public class AlarmMessageDTO implements Serializable {
private int scopeId;
private String scope;
/**
Target scope entity name
*/
private String name;
private String id0;
private String id1;
private String ruleName;
/**
Alarm text message
*/
private String alarmMessage;
/**
Alarm time measured in milliseconds
*/
private long startTime;
}
发送钉钉机器人消息
package com.wt.monitor.skywalking.alarm.service;
import com.dingtalk.api.DefaultDingTalkClient;
import com.dingtalk.api.DingTalkClient;
import com.dingtalk.api.request.OapiRobotSendRequest;
import com.taobao.api.ApiException;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.codec.binary.Base64;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
/**
https://ding-doc.dingtalk.com/doc#/serverapi2/qf2nxq
@author ChengJianSheng
@data 2020/12/1
*/
@Slf4j
@Service
public class DingTalkAlarmService {
@Value("${dingtalk.webhook}")
private String webhook;
@Value("${dingtalk.secret}")
private String secret;
public void sendMessage(String content) {
try {
Long timestamp = System.currentTimeMillis();
String stringToSign = timestamp + "\n" + secret;
Mac mac = Mac.getInstance("HmacSHA256");
mac.init(new SecretKeySpec(secret.getBytes("UTF-8"), "HmacSHA256"));
byte[] signData = mac.doFinal(stringToSign.getBytes("UTF-8"));
String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)),"UTF-8");
String serverUrl = webhook + "×tamp=" + timestamp + "&sign=" + sign;
DingTalkClient client = new DefaultDingTalkClient(serverUrl);
OapiRobotSendRequest request = new OapiRobotSendRequest();
request.setMsgtype("text");
OapiRobotSendRequest.Text text = new OapiRobotSendRequest.Text();
text.setContent(content);
request.setText(text);
client.execute(request);
} catch (ApiException e) {
e.printStackTrace();
log.error(e.getMessage(), e);
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
log.error(e.getMessage(), e);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
log.error(e.getMessage(), e);
} catch (InvalidKeyException e) {
e.printStackTrace();
log.error(e.getMessage(), e);
}
}
}
AlarmController.java
package com.wt.monitor.skywalking.alarm.controller;
import com.alibaba.fastjson.JSON;
import com.wt.monitor.skywalking.alarm.domain.AlarmMessageDTO;
import com.wt.monitor.skywalking.alarm.service.DingTalkAlarmService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBo
dy;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.text.MessageFormat;
import java.util.List;
/**
@author ChengJianSheng
@date 2020/12/1
*/
@Slf4j
@RestController
@RequestMapping("/skywalking")
public class AlarmController {
@Autowired
private DingTalkAlarmService dingTalkAlarmService;
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