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sidebar_position: 6 title: Hystrix Plugin keywords: [“soul”] description: hystrix plugin

Explanation

• Hystrix plugin is the core implementation used by gateway to fuse traffic.
• Use semaphores to process requests.

Plugin Setting

• In soul-admin --> plugin management --> hystrix, set to enable.
• If the user don't use, please disable the plugin in the background.

Plugin Instruction

• Introduce hystrix dependency in the pom.xml file of the gateway.

  <!-- soul hystrix plugin start-->
  <dependency>
      <groupId>org.dromara</groupId>
      <artifactId>soul-spring-boot-starter-plugin-hystrix</artifactId>
       <version>${last.version}</version>
  </dependency>
  <!-- soul hystrix plugin end-->

• Selectors and rules, please refer to: selector.

• Hystrix processing details:

  • Trip minimum request quantity: the minimum request quantity, which must be reached at least before the fuse is triggered
  • Error half-score threshold: the percentage of exceptions in this period of time.
  • Maximum concurrency: the maximum concurrency
  • Trip sleep time (ms): the recovery time after fusing.
  • Grouping Key: generally set as: contextPath
  • Command Key: generally set to specific path interface.
  • CallBackUrl: default url: /fallback/hystrix.