hystrix 线程池管理

使用步骤

1. 引入下述依赖

SpringBoot1x、2x 用此依赖

<dependency>
    <groupId>org.dromara.dynamictp</groupId>
    <artifactId>dynamic-tp-spring-boot-starter-adapter-hystrix</artifactId>
    <version>1.1.9.1</version>
</dependency>

SpringBoot3x 用此依赖

 <dependency>
     <groupId>org.dromara.dynamictp</groupId>
     <artifactId>dynamic-tp-spring-boot-starter-adapter-hystrix</artifactId>
     <version>1.1.9.1-3.x</version>
 </dependency>

2. 配置文件中配置 hystrix 线程池

spring:
  dynamic:
    tp:
      enabledCollect: true          # 是否开启监控指标采集，默认false
      collectorTypes: micrometer    # 监控数据采集器类型（logging | micrometer | internal_logging | JMX），默认micrometer
      monitorInterval: 5            # 监控时间间隔（报警判断、指标采集），默认5s
      hystrixTp:                                   # hystrix 线程池配置
        - threadPoolName: testThreadPoolKey
          corePoolSize: 100
          maximumPoolSize: 200
          keepAliveTime: 60
          runTimeout: 200
          queueTimeout: 100
          platformIds: [1,2]               # 通知报警平台id，不配置默认拿上层platforms配置的所有平台
          notifyItems:                     # 报警项，不配置自动会按默认值配置（变更通知、容量报警、活性报警、拒绝报警、任务超时报警）
            - type: change
              enabled: true

            - type: capacity               # 队列容量使用率，报警项类型，查看源码 NotifyTypeEnum枚举类
              enabled: true
              threshold: 80                # 报警阈值，默认70，意思是队列使用率达到70%告警
              platformIds: [2]             # 可选配置，本配置优先级 > 所属线程池platformIds > 全局配置platforms
              interval: 120                # 报警间隔（单位：s），默认120

            - type: liveness               # 线程池活性
              enabled: true
              threshold: 80                # 报警阈值，默认 70，意思是活性达到70%告警

            - type: reject                 # 触发任务拒绝告警
              enabled: true
              threshold: 100               # 默认阈值10

            - type: run_timeout            # 任务执行超时告警
              enabled: true
              threshold: 100               # 默认阈值10

            - type: queue_timeout          # 任务排队超时告警
              enabled: true
              threshold: 100               # 默认阈值10

3. 启动日志

第一次访问时看到有如下日志输出说明接入成功，如果开启了通知，同时会推送参数修改通知

DynamicTp adapter, hystrix init end, executor ExecutorWrapper(threadPoolName=testThreadPoolKey, executor=java.util.concurrent.ThreadPoolExecutor@19f57a1[Running, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], threadPoolAliasName=null, notifyItems=[NotifyItem(platforms=[wechat, ding, lark, email], enabled=true, type=liveness, threshold=70, interval=120, clusterLimit=1), NotifyItem(platforms=[wechat, ding, lark, email], enabled=true, type=change, threshold=0, interval=1, clusterLimit=1), NotifyItem(platforms=[wechat, ding, lark, email], enabled=true, type=capacity, threshold=70, interval=120, clusterLimit=1)], notifyEnabled=true)
DynamicTp hystrixTp adapter, [testThreadPoolKey] refreshed end, changed keys: [corePoolSize, maxPoolSize], corePoolSize: [5 => 100], maxPoolSize: [5 => 200], keepAliveTime: [60 => 60]

提示

1. hystrix 线程池在第一次访问时才进行初始化，服务启动并不会立即初始化
2. hystrix 线程池享有动态调参、监控、通知告警完整的功能