熔断器

熔断器概念，请详看服务治理章节。

定义熔断器

继承CircuitBreaker类，配置属性信息。一个服务的熔断器名称要和连接池一致。

  1. /**
  2.  * the breaker of user
  3.  *
  4.  * @Breaker("user")
  5.  */
  6. class UserBreaker extends CircuitBreaker
  7. {
  8.     /**
  9.      * The number of successive failures
  10.      * If the arrival, the state switch to open
  11.      *
  12.      * @Value(name="${config.breaker.user.failCount}", env="${USER_BREAKER_FAIL_COUNT}")
  13.      * @var int
  14.      */
  15.     protected $switchToFailCount = 3;
  17.     /**
  18.      * The number of successive successes
  19.      * If the arrival, the state switch to close
  20.      *
  21.      * @Value(name="${config.breaker.user.successCount}", env="${USER_BREAKER_SUCCESS_COUNT}")
  22.      * @var int
  23.      */
  24.     protected $switchToSuccessCount = 3;
  26.     /**
  27.      * Switch close to open delay time
  28.      * The unit is milliseconds
  29.      *
  30.      * @Value(name="${config.breaker.user.delayTime}", env="${USER_BREAKER_DELAY_TIME}")
  31.      * @var int
  32.      */
  33.     protected $delaySwitchTimer = 500;
  34. }