SpringCloud: sentinel降级配置、热点参数、系统规则 配置到nacos

一、application.yml
spring.cloud.sentinel

  cloud:nacos:discovery:# 服务注册地址server-addr: xxx.xxx.xxx.xxx:8848sentinel:eager: truetransport:# 控制台地址dashboard: localhost:9999# nacos配置持久化datasource:ds2:nacos:server-addr: xxx.xxx.xxx.xxx:8848dataId: circuit-breaker2groupId: DEFAULT_GROUPdata-type: jsonrule-type: degrade

二、nacos中配置circuit-breaker2

[{
“resource”: “test2”,
“count”: 2,
“timeWindow”: 60,
“grade”: 2,
“minRequestAmount”: 2,
“slowRatioThreshold”: 0.2,
“statIntervalMs”: 2000
}]

上述配置可以到localhost:9999这个控制台去查看。

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热点参数配置：rule-tpye为param-flow
nacos配置：

[{"burstCount": 0,"clusterMode": false,"controlBehavior": 0,"count": 2,"durationInSec": 1,"grade": 1,"limitApp": "default","maxQueueingTimeMs": 0,"paramFlowItemList": [],"paramIdx": 0,"resource": "test3"}
]

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系统规则配置配置：rule-tpye为system
nacos配置：

[{"highestSystemLoad": -1,"avgRt": -1,"maxThread": -1,"qps": -1,"highestCpuUsage": 0.03
}]

这种配置，cpu利用率超3%，则提示超流量

参考：

https://sentinelguard.io/zh-cn/docs/basic-api-resource-rule.html