SpringCloud Alibaba 实战教程6-sentinel限流持久化配置nacos

gang_luo

发布于 2020-12-22 15:05:41

4800

发布于 2020-12-22 15:05:41

文章被收录于专栏：gang_luogang_luo

一、引入pom

<dependency>
    <groupId>com.alibaba.csp</groupId>
    <artifactId>sentinel-datasource-nacos</artifactId>
</dependency>

二、配置文件添加sentinel数据源

server:
  port: 8020
spring:
  application:
    name: order-service
  cloud:
    nacos:
      config:
        server-addr: 192.168.2.6:8001
        group: DEFAULT_GROUP
        prefix: order-service
        file-extension: yaml
        namespace: 9bb83945-f4a3-4839-8d3b-363f1b78db36
      discovery:
        server-addr: 192.168.2.6:8001
    sentinel:
      transport:
        dashboard: 192.168.2.6:8858 #配置Sentinel dashboard地址
        # 默认就是8719端口，如果占用会依次+1开始扫描
        # 取消延迟加载
        eager: true
      datasource:
        ds1:
          nacos:
            server-addr: 192.168.2.6:8001
            namespace: 9bb83945-f4a3-4839-8d3b-363f1b78db36
            dataId: ${spring.application.name}-sentinel
            group: DEFAULT_GROUP
            data-type: json
            rule-type: flow

三、nacos中添加规则

[
    {
        "resource": "getByOrderNo",
        "limitApp": "default",
        "grade": 1,
        "count": 3,
        "strategy": 0,
        "controlBehavior": 0,
        "clusterMode": false
    }
]

resource：资源名称 limitApp：来源应用 grade：阀值类型，0-线程数，1-qps count：单机阀值 strategy：流控模式，0-直接，1-关联，2-链路 controlBehavior：流控效果，0-快速失败，1-warm up，2-排队等待 clusterMode：是否集群