目标
一旦重启服务,之前设置的 Sentinel 限流规则等将会消失。需要将配置规则持久化。
步骤
- 添加 pom
<dependency>
<groupId>com.alibaba.csp</groupId>
<artifactId>sentinel-datasource-nacos</artifactId>
</dependency>
- 配置 yml
spring:
application:
name: sentinel-service
cloud:
nacos:
discovery: #nacos服务注册中心地址
server-addr: www.cjlly.com:8848
sentinel:
transport:
dashboard: 127.0.0.1:8080
port: 8719
datasource:
ds1:
nacos:
server-addr: www.cjlly.com:8848
dataId: sentinel-service
groupId: DEFAULT_GROUP
data-type: json
rule_type: flow
- 登陆 nacos,新建配置规则 sentinel-service
[
{
"resource": "/findById",
"limitApp": "default",
"grade": 1,
"count": 1,
"strategy": 0,
"controlBehavior": 0,
"clusterMode": false
}
]
Nacos 配置解读
- 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:warmUp,2:排队等待
- clusterMode:是否集群